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Revision: 431
Committed: Thu Jan 4 15:13:25 2024 UTC (3 months, 3 weeks ago) by tony
File size: 85375 byte(s)
Log Message:
Fixes merged

File Contents

# User Rev Content
1 tony 431 IBX Change Log version (2.6-4 Build 14172) Thu, 04 Jan 2024 11:55:41 +0000
2 tony 426
3     1. TIBCustomDataSet.ApplyUpdates: ensure controls are not permanently disabled
4     if ApplyUpdates called before a cursor exists.
5    
6     2. TIBCustomDataSet.CreateBlobStream: add check for empty dataset before
7     creating the blob.
8    
9 tony 427 3. TIBCustomDataset.Requery: The display buffer pool is now also reset avoiding
10     issues with left over pointers to invalid internal buffers.
11    
12 tony 429 4. TIBCustomDataset.PrimaryKeys when used in InternalRefresh. when more than one
13     primary key is used by the dataset then the list of primary keys is now
14     properly separated by a ';'.
15    
16 tony 430 5. When refresh is called for a dataset without any primary keys (e.g. views and
17     stored procedures), the internal record number is now used to restore the cursor
18     following the refresh. However, it should be noted that cannot be 100% reliable.
19     The internal record number simply reflects the record fetch order and this can
20     change between successive queries if records are inserted or deleted by the
21     current or another user (if the read_committed transaction isolation level is used).
22    
23     6. Inserting a record at the start of a grid and then resizing the grid should
24     no longer result in an apparent duplication of records in the grid. Note: this
25     was due to TDataset.SetCurrentRecord ignoring the bookmark flag (bfInserted). IBX
26     works around this by no longer using this bookmark flag value.
27    
28 tony 431 7. Inserting a record into an empty grid and then resizing the grid should
29     no longer result in an apparent duplication of records in the grid.
30    
31 tony 421 IBX Change Log version (2.6-3 Build 14080) Sat, 21 Oct 2023 14:14:22 +0100
32    
33     1. Update to calls to EInterbaseError to add default code page. Consequential
34     on change to fbintf.
35    
36     2. Update some examples to replace test for null date with the NullDate constant
37     instead of zero. This is because Laz 3.0 changes the value of NullDate.
38    
39 tony 419 IBX Change Log version (2.6-2 Build 14016) Sat, 05 Aug 2023 11:54:55 +0100
40 tony 416
41     1. Fixed repeated "type" keyword in IBBufferCursors. This may cause a compile error
42 tony 418 with later versions of fpc - later than 3.2.2.
43 tony 416
44 tony 418 2. IBUpdateSQL. update internal queries if parent dataset database changed.
45    
46     3. IBUpdateSQL: Do not prepare an empty internal query.
47    
48 tony 419 4. IBBufferedCursors: avoid range error when max field no. is > fields.count
49 tony 418
50 tony 419 5. IBBufferedCursors: avoid End of File error if refresh query returns and empty row count
51    
52 tony 412 IBX Change Log version (2.6-1 Build 13985) Mon, 17 Jul 2023 14:16:41 +0100
53    
54     1. Maintenance update of 2.6.0. This version is still at beta.
55    
56     2. Reverse out changes to DrawCellText signature in IBArrayGrid and IBDynamic Grid.
57     See https://gitlab.com/freepascal.org/lazarus/lazarus/-/commit/53aaae9c5e2a5edac5b1d2f70739a8ef7b0a9623
58    
59     3. ibxscript: When parsing a store procedure or function with a variable name
60     enclosed in doublequotes, the double quotes are no longer removed.
61    
62 tony 410 IBX Change Log version (2.6-0 Build 13976) Thu, 22 Jun 2023 13:49:22 +0100
63 tony 407
64 tony 410 NOTE: THIS VERSION RE-WRITES THE INTERNAL BUFFER MANAGER AND SHOULD BE CONSIDERED
65     AS BETA SOFTWARE. EVEN THOUGH IT HAS PASSED ALL REGRESSION TESTS, IT CANNOT
66     BE ASSUMED TO BE PRODUCTION READY UNTIL WIDER USE. PLEASE REPORT ANY
67     ISSUES TO support@mwasoftware.co.uk
68    
69     1. Complete rewrite of internal buffer management in order to improve performance
70     and maintainability. Highlights:
71    
72     * Extending the size of the buffer pool no longer has to copy the entire record
73     cache. Instead, a new extent is simply added to the buffer pool.
74     * A memory to memory copy of each display buffer now is avoided when scolling the
75     dataset.
76     * A separate set of buffers is now used for calculated fields. This avoids
77     having to keep copies of calculated field values in the buffer cache.
78     * Compact bitmaps are used to record null status and need to refresh in each
79     buffer.
80     * Display buffer type changed from PChar to TRecordBuffer in line with change of
81     buffer type in FCL-DB.
82    
83     2. TIBUpdateSQL: changes to SQL text will close linked dataset if open. This is
84     to ensure same behaviour as TIBDataset, TIBTable and TIBStoredProcedure.
85    
86     3. TField Provider Flags: pfRefreshOnInsert and pfRefreshOnUpdate are now supported.
87     If either or both of these flags are set at design time (using the fields editor)
88     then this forces a row refresh on respectively insert or update, or both, when the
89     corresponding field is not present in an SQL RETURNING clause.
90    
91     4. TIBCustomDataset.FieldDefsFromQuery moved to a helper class (TFieldDefsMaker) in order to improve
92     maintainability and readability and to add identification of primary key fields.
93    
94     5. TIBQuery, TIBDataset and TIBTable. Traditionally, IBX has implemented the Refresh method
95     as a refresh of the current row. However, this is different behaviour to that described
96     in the FPC documentation for TDataset.Refresh which is described as "refetches the data in
97     the dataset from the underlying database, and attempts to reposition the cursor on
98     the same record as it was". IBX now complies with the FPC definition of Refresh.
99    
100     6. A progammatic Row Refresh should no longer be required.
101     Use Insert/Update... returning to refresh any fields that may change following an
102     insert or update i.e. Identify fields on Insert only, Computed By, Blob and array fields
103     on both. If there are any other fields (e.g. updated by triggers) set the appropriate ProviderFlag
104     for the field at Design Time to force a row refresh if not in the returning clause.
105    
106     7. It should now be possible to insert a row into an empty unidirectional dataset.
107    
108     8. New TIBQuery, TIBDataSet and TIBTable property: BufferChunksInFirstBlock (default 50).
109     This gives the number of buffers in the initial block for the buffer pool in
110     bi-directional datasets. BufferChunks (default 1000) gives the number of buffers
111     in subsequent buffer pool blocks. This avoids large and mostly unused memory allocations
112     for small datasets.
113    
114     IBX Change Log version (2.5-1 Build 13927) Tue, 6 Dec 2022 23:13:00 +0000
115    
116 tony 407 1. IBCustomDataset: avoid problem with additions to TFieldType by using a subset instead.
117    
118     2. TIBDynamicGrid: change DrawCellText declaration to comply with laz 2.3.0
119    
120 tony 409 3. TIBArrayGrid: change DrawCellText declaration to comply with laz 2.3.0
121    
122 tony 402 IBX Change Log version (2.5-0 Build 13868) Fri, 29 Jul 2022 09:52:01 +0100
123    
124     1. TIBTransaction: new properties
125     property TransactionID: integer read GetTransactionID;
126     property IsReadOnly: boolean read GetIsReadOnly;
127     {published}
128     property TransactionName: string read FTransactionName write SetTransactionName;
129    
130     2. IBCustomDataset: per row blob and array buffer cached clear before processing
131     Insert or Update...Returning. This allows blobs and arrays to be returned
132     by the statement.
133    
134     3. TSQLXMLReader moved from IBXScript to package fbintf unit IBUtils.
135    
136     4. TransactionName initialised to a newly generated GUID if empty.
137    
138     5. New unit: IBJournal. This provides the TIBJournal component which is a wrapper
139     for the fbintf package's journaling capability. TIBJournal is used to set the
140     file path and filename for the journal file and to Enabled (start journaling) and
141     disable (stop journaling). See fbintf/doc/README.ClientSideJournaling.pdf for
142     more information, and comments in IBJournal.pas.
143    
144     6. TIBDatabase.InternalTransaction is now a read only transaction.
145    
146     7. Bug fix: blob id no longer set to null on update when blob has not been
147     retrieved.
148    
149     8. Row auto refreshed on update/insert if blob or array field updated and field
150     not in a returning clause.
151    
152     9. ColumnCount moved from record buffer header to a single per dataset count. Reduces
153     buffer overhead and avoids problem when refresh query has a different column
154     count to select query i.e. incorrectly changing number of columns.
155    
156     10. IBExtract: support added for UDR Functions, Procedure and Trigger declarations.
157    
158     11. TIBDatabaseInfo. New property FirebirdVersion. This returns the current Firebird version
159     string. Note that the Version property returns an InterBase compatible version string.
160    
161     12. IBExtract: ensure sql identifiers returned as a LIST are always quoted.
162    
163 tony 359 IBX Change Log version (2.5-0 Build 12933) Mon, 29 Nov 2021 14:59:54 +0000
164    
165     1. IBCustomDataset: Modify TISQL component now defaults to GoToFirstRecordOnExecute := true.
166     This is for compatibility with Firebird 5 where Update...Returning can return
167     a cursor.
168    
169 tony 356 IBX Change Log version (2.4-3 Build 12886) Sat, 23 Oct 2021 14:58:30 +0100
170 tony 347
171     1. Add try-..except check when initially loading library in IDE. This should
172     ensure that IDE continues to load even when a failure occurs in IBX load
173     library.
174    
175 tony 348 2. IBXScript: now recognises a CASE...END block within a stored procedure and
176     hence will correctly detect end of the outer containing block when the block
177     contains a SELECT ... CASE ... END construct.
178    
179     3. IBExtract: some further tidying up to remove extraneous white space.
180    
181 tony 349 4. IBCustomDataSet: DefaultFieldClasses array declaration updated to avoid compile time
182     errors when extra elements are added to DB.TFieldType.
183    
184     5. IBUpdate: updated to reflect changes to ISQLParam.
185    
186     6. IBXScript: now correctly parses a DECLARE statement which includes a quoted string.
187    
188     7. IBExtract: for ODS >=13, increment generator value by one for ALTER SEQUENCE statement.
189    
190 tony 353 8. IBSQL: Support for scrollable cursors added (note: local databases only)
191    
192 tony 345 IBX Change Log version (2.4-2 Build 12773) Mon, 23 Aug 2021 11:59:42 +0100
193    
194     1. TIBDatabaseInfo: review and tidy-up of property types. Most widen to int64 with the
195     exception of those defined to be one byte wide e.g. DBImplementationNo.
196    
197     2. TIBSQL: Batch Update/Insert support added.
198    
199     3. TIBStoredProc: when generating the SQL, the value of the StoredProcName property
200     is no longer automatically converted to upper case when it is syntactically a
201     SQL Identifier. This is to support the use of stored procedures defined e.g.
202     as CREATE PROCEDURE "iCASE".
203    
204     There could be a backwards compatibility issue when the StoredProcName was entered
205     manually at design time. That is not selected from the drop down list. If the
206     StoredProcName is entered in mixed case and the procedure was declared e.g. as
207     CREATE PROCEDURE iCASE, then the SQL generation will be incorrect. You should
208     ensure that the value of the StoredProcName is all upper case, unless it was
209     declared under dialect 3 and explicitly as mixed case (i.e. delimited by double
210     quotes).
211    
212     Note that when a stored procedure name was declared delimited in double quotes,
213     as in the first example above, the value of the StoredProcName property must not
214     include the delimiters (double quotes).
215    
216     4. IBXUpgradeConfFile: an exception is now raised if a patch file specified in
217     upgrade.conf was not found. This replaces silently ignoring the problem.
218    
219     5. TIBLocalDBSupport: new property "SectionHeaderTemplate". This defaults to
220     'Version.%.3d' and is used to generate the section header names (for a given
221     version no.) in the upgrade.conf file.
222    
223 tony 340 IBX Change Log version (2.4-1 Build 12550) Wed, 23 Jun 2021 13:59:14 +0100
224    
225     1. -c command line option added to fbsql example program. Used to set connection
226     character set.
227    
228 tony 338 IBX Change Log version (2.4-0 Build 12543) Mon, 22 Feb 2021 11:00:08 +0000
229 tony 315
230     1. Firebird 4 support added.
231    
232     2. New FB4 data types TIME WITH TIME ZONE, TIMESTAMP WITH TIME ZONE, DECFLOAT and
233     extended precision NUMERIC fields are supported.
234    
235     3. TFmtBCDField is used to support access to DECFLOAT and extended precision NUMERIC fields.
236    
237     4. TIBDateTimeField and TIBTimeField are introduced in support of TIMESTAMP WITH TIME ZONE
238     and TIME WITH TIME ZONE fields. These inherit from TDateTimeField.
239    
240     5. IBExtract now supports FB4 enhancements:
241     - new data types as above
242     - Identity column extensions
243     - Default user role
244     - SQL Security clause for Database, Tables, Procedures, Functions and Triggers
245     - Internal Functions
246    
247     6. IBExtract: new event: OnExtractLines.
248    
249     7. IBExtract: revert create trigger to legacy syntax see Firebird CORE-6243, CORE-5545 and DOC-145
250    
251     8. IBXServices: Server version no. parsing now allows any letter before major version number
252     and is no longer restricted to 'V' e.g. "LI-T4.0.0.1436 Firebird 4.0 Beta 1"
253    
254     9. TIBDataSet and TIBQuery: new property TZTextOption. Used to determine the default
255     format for rendering a time zone.
256    
257     10. TIBDataSet and TIBQuery: new property DefaultTZDate. Used to provide the default date
258     to convert TIME WITH TIME ZONE data type values to and from GMT.
259    
260     11. Unit name IBTypes changed to IBInternals. Internal interfaces TIBGUIInterface and TIBTimerInf renamed to
261     IIBGUIInterface and IIBTimerInf respectively.
262    
263     12. Constants: DPBPrefix and TPBPrefix moved to IB unit. DPBConstantNames and TPBConstantNames
264     now accessible as properties of TIBDatabase and TIBTransaction respectively.
265    
266     13. String Fields: when a fixed character with (CHAR) field is returned, it is now
267     truncated to its fixed character width rather than being right padded with
268     white space to the maximum data size.
269    
270     14. TIBTable.Empty table. In additional to deleting all records in the underlying
271     table, the internal buffers are now also flushed ensuring that the TIBTable is
272     also empty.
273    
274     15. TBatchSQLStatementReader: Line buffer is now cleared on call to reset.
275    
276     16. TIBXControlService descendents: DatabaseName may now be set using a database
277     connect string. The database name is extracted from the connect string.
278    
279     17. DBControlGrid: Minor bug fixes. avoid AV on form closure, avoid black panel
280    
281     18. TIBExtract: Data type of COMPUTED By columns is no longer included in SQL.
282    
283     19. Local database on Linux and with legacy API and FB 2.5 embedded server: fixed problem with password
284     not being present as required.
285    
286     20. IBTreeView split into DBTreeView and IBTreeView. This former is an IBX indepedent
287     version that can be customised to work with other database drivers.
288    
289 tony 319 21. ISQLMonitor: use platform specific LineEnding to delimit messages. Avoids
290     unnecessary CR at end of line on Unix platforms.
291    
292     22. ISQLMonitor: Unix: Default semaphore timeout increased from 1 second to 10
293     seconds in order to reduce risk of message loss.
294    
295     23. ISQLMonitor: read and write count statistics now available via:
296     property TIBSQLMonitor.ReadCount;
297     IIBSQLMonitorHook.GetWriteCount: integer;
298    
299     24. ISQLMonitor tidy up and unit split. IPC functions moved to new unit IBIPC.
300    
301 tony 312 IBX Change Log version (2.3-5 Build 12350) Tue, 25 Aug 2020 16:11:02 +0100
302 tony 308
303     1. TIBStringField: when a string value is read from a dataset buffer, if the
304     number of UTF8 characters exceeds the string size then string is truncated
305     to the maximum string size. This is usually a problem with fixed width columns
306     right padded with white space.
307    
308     2. SQLFiltered and SQLFilterParams added to TIBQuery, TIBTable and TIBDataset.
309     If SQLFiltered is set then when a dataset is opened, each line in the
310     SQLFilterParams property is assumed to be a SQL condition clause and
311     ANDed into the Where clause of the SQL Select statement provided as a
312     dataset property. Each such SQL condition thus acts as an additional filter
313 tony 315 on the dataset.
314 tony 308
315     3. The Filtered property inherited from TDataset is no longer used for SQL (server
316     side filters).
317    
318 tony 311 4. IBLookupComboEditBox: Selection should no longer reset to start of text when
319     text matches complete entry.
320    
321     5. TIBDataLink: Detail Dataset params not refreshed unless both master and detail
322     dataset are active (avoids risk of access violation if master is inactive)
323    
324     6. TIBEvents: Registered property can now be set at design time even if database not open
325    
326     7. TIBEvents: component now correctly re-initialised after call to UnregisterEvents.
327     This should prevent "spillover" of events between sessions.
328    
329     8. TIBCustomDataset: GetNextRecord now called when reseting to first record of a unidirectional dataset.
330     This should ensure that the internal buffer is set up correctly and avoids
331     a duplicate initial row.
332    
333     9. TIBStringField: DataSize now given as byte size of string less trailing any zero character.
334     That is, the DataSize should be the field size * character set width. The
335     value returned by DataSize is now the same as the Dataset buffer size reserved
336     for the field.
337    
338 tony 312 10. IBExtract: Tidyup of SQL generation. Avoid unnecessary double quotes.
339 tony 311
340     11. TIBCustomDataset: Add checks on buffer sizes when copying data from row to field buffer
341     and vice-versa. This may result in an exception being raised (correctly) for
342     older programs when using dataset fields added to a form and the database has been
343     upgraded. For example, computed fields can change from 32-bit to 64-bit integers.
344     In such cases, the field needs to be deleted in the IDE fields editor and then
345     added back in.
346    
347 tony 312 12. IBCustomDataSet: CanInsert, CanEdit, CanDelete and CanRefresh updated to return
348 tony 315 false if query contains only white space and not just empty.
349 tony 312
350 tony 311 12. IBCustomDataset: Blob data is now cleared when TDataSet.Cancel is called. This
351     should ensure that (e.g.) a TDBMemo is correctly refreshed after a dataset edit
352     is cancelled.
353    
354 tony 315 13. IBCustomDataset: SetArrayIntf should no longer cause an access violation if
355     called on a null field.
356    
357     14. IBCustomDataSet: An access violation should no longer occur when calling CancelUpdates
358     results in an empty dataTC86 Client side Filtered Dataset 1 X
359     set.
360    
361     15. IBCustomDataSet: OnUpdateError should now be called in all circumstances when
362     a cached update is applied and an exception is raised.
363    
364     16. IBCustomDataSet: Avoid access violation when SetBookmarkData called with nil pointer.
365    
366     17. Console Mode Local Database support: backup/restore should now work correctly.
367    
368     18. Local Database Support: if an upgrade fails, a downgrade is now performed if
369     possible and an exception raised.
370    
371     19. MinimumVersionNo added to Local Database Support. Database will not open if
372     below this version no. and upgrade not possible.
373    
374 tony 307 IBX Change Log version (2.3-4 Build 12041) Fri, 17 Apr 2020 14:00:32 +0100
375 tony 306
376 tony 307 1. TIBXDataSet and Generators: Generator Names that are not all upper case or
377     not SQL Identifiers are now supported.
378 tony 306
379 tony 307 2. TIBXScript: Set Generator is no longer rejected as unrecognised SQL and is
380     passed to the Firebird engine for execution.
381 tony 306
382 tony 307 3. TIBDataSet: Unidirectional datasets now give an error message if an attempt
383     is made to scroll back.
384 tony 306
385 tony 307 4. New unit: IBMessages.pas. Contains only messages used by IBX and not FBIntf
386 tony 306
387 tony 307 5. TIBLookupComboEditBox: When generating auto-complete SQL, the ListField is now
388     only enclosed in double quotes in SQL dialect 3 and when it needs to be.
389 tony 306
390 tony 307 6. TIBLookupComboEditBox: when the list source opens, the ListField name is now
391     validated. If no match is found in the list of field names and the database has
392     been opened in SQL Dialect 3, then the ListField Name is converted to upper case
393     if it then matches a field name. Otherwise, a Listfield not valid exception occurs.
394 tony 306
395 tony 307 7. IBGeneratoreditor.pas: Add missing parenthesis around "IS" statement for compliance
396     with fpc 3.2.
397 tony 306
398 tony 307 IBX Change Log version (2.3-3 Build 11512) Fri, 28 Dec 2018 10:04:17 +0000
399 tony 287
400    
401 tony 307 1. New property for TIBDatabase and TIBXServicesConnection. This is "ConfigOverrides"
402     and is used to override the default settings in the client side "firebird.conf" This
403     includes "WireCompression" and "WireCrypt". The value of this property is a "TStrings".
404     Each line of the string list should be a setting in the same format as "firebird.conf".
405     For example "WireCompression = true" in order to request wire compression on the client side.
406 tony 287
407 tony 307 Note: explicit settings in the client side "firebird.conf" appear to take precedence
408     over settings given in TIBDatabase and TIBXServicesConnection. Many client side settings
409     also require a compatible setting in the server side "firebird.conf". For example
410     "WireCompression = true" must also be set in the server's "firebird.conf" for wire
411     compression to be used.
412 tony 291
413 tony 307 Whether or not WireCompression or WireCrypt are in use can be checked using the information
414     returned with the Client/Server protocol version. See ibx/examples/dbadmin and
415     ibx/examples/dbinfo for examples of how to display this information.
416 tony 291
417 tony 307 2. New property for TIBDatabase and TIBXServicesConnection: "WireCompression". This
418     is a "convenience" property. If set the "WireCompression=true" is added to the
419     ConfigOverrides. If unchecked then this setting is removed.
420 tony 291
421 tony 307 3. TIBExtract: 64-bit integer types are now correctly extracted as "BIGINT" and
422     not "INT64".
423 tony 291
424 tony 307 4. New published properties for TIBCSVDataOut, TIBInsertStmtsOut and TIBBlockFormatOut
425     These are:
426     property TimestampFormat: string;
427     property DateFormat: string;
428     property TimeFormat: string;
429 tony 291
430 tony 307 Respectively, these provide the date time format templates for SQL types: TIMESTAMP,
431     DATETIME and TIME. The format strings use the standard FPC date/time format
432     characters (see https://www.freepascal.org/docs-html/rtl/sysutils/formatchars.html).
433 tony 266
434 tony 307 If any of the above properties are set to an empty string, then the locale default
435     is used. This uses the ShortDateFormat and the LongTimeFormat. In timestamp, the
436     locale default is extended by appending '.zzz' to include milliseconds.
437 tony 272
438 tony 307 TIBCSVDataOut by default sets these properties to the empty string, while the other
439     two use: 'yyyy.mm.dd hh:nn:ss.zzz', 'yyyy.mm.dd' and 'hh:nn:ss.zzz' respectively.
440 tony 266
441 tony 307 5. New published property for TIBCSVDataOut:
442     property QuoteStrings: boolean (default true)
443 tony 266
444 tony 307 If false then strings are unquoted, otherwise, the QuoteChar property value is
445     used to delimit each and every string in the output.
446 tony 263
447 tony 307 6. New published properties for TIBCSVDataOut:
448     property FieldSeparator: string;
449     property HeaderSeparator: string;
450 tony 267
451 tony 307 Respectively, these provide the separator character(s) used to separate fields
452     in data and header rows. Both default to ','.
453 tony 270
454 tony 307 7. New published properties for TIBCSVDataOut and TIBBlockFormatOut:
455     TOnFormatTextString = procedure(sender: TObject; var TextString: string) of object;
456     property OnFormatTextString;
457 tony 270
458 tony 307 This event handler can be used to process text strings before they are included
459     in the output e.g. to replace unprintable characters with alternative strings.
460     This only applies to columns with an SQL Type of SQL_VARYING and SQL_TEXT.
461 tony 270
462 tony 307 8. TIBDataSet now raises an exception when ParamByName called with an invalid parameter name.
463     Uses "FindParam" if in order to find out if a parameter with a given name exists
464     and without raising and exception if it does not.
465 tony 270
466 tony 307 9. TIBQuery now uses IBX SQL Parser instead of the TParams SQL parser in order to ensure
467     consistency with SQL queries.
468 tony 270
469 tony 307 10. CaseSensitiveParameterNames property added to TIBSQL, TIBDataSet and TIBQuery.
470     When true, SQL statement parameter names are parsed case sensitive. Note for
471     TIBDataSet only applies to Select query.
472 tony 270
473 tony 307 11. IBEvents: removing a TIBEvent component from a form should no longer result in
474     an IDE exception.
475 tony 270
476 tony 307 12. LocalDBSupport: initial database creation should now work correctly
477     when the schema source is an sql file.
478 tony 270
479 tony 307 13. TIBCMLocalDBSupport: new event handler "property OnProgressEvent: TOnProgressEvent"
480     when defined, this handler will be called by the internal TIBXScript during
481     initial database creation when the schema source is an sql file and may be used
482     to provide a visual indication of progress in console mode.
483 tony 270
484 tony 307 14. TCustomIBLocalDBSupport: new public property "InOnCreateDB: boolean". This is set
485     to true while a new local database is being created and its schema populated.
486     Useful in (e.g.) TIBDatabase.OnAfterConnect handler to suppress actions
487     when the database is disconnected/connected during the create DB procedure.
488 tony 270
489 tony 307 15. TIBXScript: any User/password parameters found in a CREATE DATABASE statement
490     are now always ignored and replaced by the user name and password provided as
491     the login parameters for the TIBDatabase referenced from the TIBXScript. The
492     IgnoreCreateDatabase property still applies and the CREATE DATABASE statement is
493     completely ignored if this property is true.
494 tony 270
495 tony 307 16. Code tidyup in IBTreeView: Node properties initialisation moved from TIBTreeView.AddNodes
496     to TIBTreeView.Added. An OnAddition event handler is no longer needed to initialise
497     ImageIndex and SelectImageIndex values on AddNode.
498 tony 270
499 tony 307 17. TIBDatabase.Attachment and TIBXServicesConnection.ServicesIntf properties are now
500     read/write. This should enabled (e.g.) multiple instances of TIBDatabase to share
501     the same database connection.
502 tony 270
503 tony 307 18. TIBDataSet and TIBQuery now support the TDataSet "Filter" property.
504     if provided, this should be an conditional SQL expression suitable for
505     including in an SQL Select statement "where" clause. If non-empty and the
506     "Filtered" property is true then the SQL expression provided as the value of
507     the "Filter" property is "ANDed" with any existing condition statement
508     in the SQL statement's "Where" clause.
509 tony 270
510 tony 307 If the "Filter" property is set at run time, the "Filtered" property is true
511     and the dataset is already open, then the dataset is closed and re-opened automatically.
512 tony 271
513 tony 307 The "Filter" condition may include IBX style parameters. In which case, their
514     value must be set by the dataset's "OnBeforeOpen" event handler.
515 tony 272
516 tony 307 This is a public property for TIBDataSet and TIBQuery query and intended for
517     use at run time.
518 tony 272
519 tony 307 Note: The property is a published property of TIBTable. The TIBTable functionality
520     is unaffected by this change.
521 tony 272
522 tony 307 IBX Change Log version (2.3-2) Wed, 05 Dec 2018 12:19:23 +0000
523 tony 272
524 tony 307 1. Remove need to check for IsMultiThread by providing access to GUI timers via
525     IBGUIInterface. Note: master/detail delay timer does not apply to console
526     mode apps.
527 tony 272
528 tony 307 2. TIBCustomDataSet: SQLParser ignored if it does not contain a valid select
529     statement. This avoids problems if "Execute Block" is used as the Query.
530 tony 272
531 tony 307 3. IBSQLParser now uses the common SQL tokeniser from fbintf. This replaces the
532     internal SQL tokeniser routines.
533 tony 272
534 tony 307 4. IBSQLParser: new property NotaSelectStmt. Set to true if SQL fails to parse
535     as a select statement, with or without CTEs.
536 tony 272
537 tony 307 5. IBSQLParser: parser now recognises the "ROWS" clause.
538 tony 272
539 tony 307 6. TIBXScript now uses the common SQL tokeniser from fbintf. This replaces the
540     internal SQL tokeniser routines.
541 tony 272
542 tony 307 7. Fix error in TIBXScript processing of "set" statements. This avoids exceptions
543     being raised for valid set statements processed by a data formatter.
544 tony 272
545 tony 307 8. New published property for TIBDatabase and TIBXServicesConnection. This is
546     FirebirdLibraryPathName: string. If not empty it is used to explicitly specify
547     the path of the Firebird Library used by the database/services connection.
548 tony 267
549 tony 307 9. New read only public property for TIBDatabase and TIBXServicesConnection. This
550     is FirebirdAPI and returns the IFirebirdAPI interface used by the database/
551     services connection.
552 tony 263
553 tony 307 10.SQL Property editors now quote parameter names if "Quote identifier" is selected
554     or param name is not a valid SQL identifier.
555 tony 263
556 tony 307 11. IBLookupComboEditBox: In Lazarus 2.0, TDBLookupComboBox takes a more restrictive
557     view of whether the text box should be editable when no DataSource is specified.
558     TIBLookupComboEditBox has been updated to workaround this problem. As long as
559     ReadOnly is false, the text box is editable when no DataSource is specified.
560 tony 263
561 tony 307 12. AllowUseOfFBLIB is now set to "true" at design time. This is to allow use of
562     the FBLIB environment variable. If you do not want to permit this then you
563     must modify the Register procedure in the design/IBDBReg.pas unit to remove
564     this setting.
565 tony 263
566 tony 307 IBX Change Log version (2.3-1) Thu, 25 Oct 2018 14:39:45 +0100
567 tony 263
568 tony 307 1. IBCustomDataset: replace deprecated function ValidUTF8String with call to
569     Utf8EscapeControlChars
570 tony 263
571 tony 307 IBX Change Log version (2.3-0) Mon, 16 Apr 2018 09:48:06 +0100
572 tony 263
573 tony 307 IMPORTANT: the source code tree has been re-organised for IBX 2.3. Please remove
574     all previous copies of the IBX source code tree before installing this release.
575 tony 263
576 tony 307 The IBX packages used by most users have not changed, with one exception. The
577     IBServices unit has been moved to the package iblegacyServices.lpk. To continue
578     to use the IBServices unit in your applications, please add the iblegacyServices
579     to the list of dependencies. To do this, open the Project Inspector and select
580     Add->New Requirement and select "ibLegacyServices" from the list of available
581     packages.
582 tony 263
583 tony 307 1. New unit IBXServices. The IBXServices unit is a re-architectured update of
584     the IBServices unit providing what is intended to be a clearer and easier to
585     use set of IB Services components. See Chapter 10 of the IBX User Guide for
586     more information and the guide to "Firebird Service Management Using IBX".
587     As indicated above, the legacy services components are still available and
588     provided in a separate package. There is no need to update working applications
589     using the older versions except for an additional package dependency.
590 tony 263
591 tony 307 2. The IBX packages and source code tree have been re-organised in an attempt to
592     finally get rid of the "duplicate ppu" warnings. This re-organisation should
593     not affect existing users. Section 2.3 of the IBX User Guide describes the
594     new set of IBX packages.
595 tony 263
596 tony 307 3. The ibx/examples/DBAdmin and the ibx/examples/services example have been
597     updated to use the new Services API components.
598 tony 263
599 tony 307 4. The iblocal package has been updated to use the new Services API components.
600 tony 241
601 tony 307 5. procedure SetAutoAdmin; in the new IBX Services this method is now a member of
602     TIBXSecurityService. It had been wrongly classified in the previous version
603     as a per database configuration item. It is global to a server and hence
604     correctly positioned as part of the Security Package. In the DBAdmin example,
605     the setting has moved to the mappings page.
606 tony 241
607 tony 307 6. TIBXScript: IgnoreCreateDatabase added. If true then CREATE DATABASE statements
608     are ignored.
609 tony 101
610 tony 307 7. TIBDatabase: DropDatabase now ensures that all transactions have been properly
611     closed before the database is dropped. Before and After Disconnect event handlers
612     are also fired.
613 tony 209
614 tony 307 8. TIBTransaction: OnStartTransaction event now fires every time the transaction
615     is started and not just the first time.
616 tony 209
617 tony 307 9. IBDataOutput: Use FormatFloat for all performance statistics to avoid platform
618     depenendency with comp type.
619 tony 209
620 tony 307 10. IBDataOutput: select query data output is now sent to stdout instead of stderr.
621 tony 209
622 tony 307 11. TIBDatabase: Remove regression. If a user login dialog changes the DatabaseName
623     then this is recognised and not ignored.
624 tony 209
625 tony 307 12. TIBDataSet, TIBQuery, TIBTable: additions:
626     function GetRowsAffected(var SelectCount, InsertCount, UpdateCount, DeleteCount: integer): boolean;
627     function GetPerfStatistics(var stats: TPerfCounters): boolean;
628     property EnableStatistics: boolean read FEnableStatistics write SetEnableStatistics;
629 tony 209
630 tony 307 GetRowsAffected returns the affected row counts from the last insert/update/delete
631     if EnableStatistics = true then GetPerfStatistics returns the current stats
632     counters for the select query. Note: stats accumulate after each fetch from
633     the database. To get total query cost after open, call the "Last" method
634     and then GetPerfStatistics.
635 tony 209
636 tony 307 See ibx/examples/consolemode for an example of the use of GetPerfStatistics
637 tony 209
638 tony 307 13. TIBExtract: Identity columns DDL. "Start with clause" now correctly encapsulated
639     in parenthesises.
640 tony 209
641 tony 307 14. TIBExtract: new published property "AlwaysQuoteIdentifiers". If true then in dialect 3
642     SQL identifiers are always delimited by double quotes. If false, then they are
643     only delimited if the identifier is a reserved word, contains lower case or special
644     characters. Set this property to true to retain previous behaviour.
645 tony 209
646 tony 307 15. Insert SQL Property Editor. In Insert Returning Clause, Identity column names
647     are now inserted in double quotes if not Reserved Words or valid SQL Identifiers.
648 tony 209
649 tony 307 16. TIBDataSet, TIBQuery, TIBTable: addition:
650     property MasterDetailDelay: integer {defaults to zero}
651 tony 209
652 tony 307 When non-zero and the dataset is a detail table referencing a master table
653     through either a MasterSource (TIBTable) or a DataSource (TIBDataSet, TIBQuery)
654     then a synchronisation delay is added (in milliseconds) between the master
655     row changing and the detail dataset being re-opened. If the master dataset
656     is scrolled before the delay expires then the delay is reset. This can be used
657     to avoid performance overheads when scrolling through a large master dataset.
658 tony 209
659 tony 307 Note: uses fptimer and hence requires a thread manager. Under Linux the
660     chreads unit must be included in your project. TTimer is not used in order
661     to avoid an LCL dependency. Requires FPC 3.0.2 or later.
662 tony 209
663 tony 307 17. TIBExtract: User role grants now excluded when etGrantsToUser not specified
664     with Extract Option eoDatabase.
665 tony 209
666 tony 307 18. TIBLookupComboEditBox: Workaround added for https://bugs.freepascal.org/view.php?id=33428
667     When a deLayoutChanged event is reported on the ListSource dataset, the
668     combobox text is updated. This allows a listsource (detail) to be in a Master/Detail
669     relationship with the control's datasource (master).
670 tony 209
671 tony 307 19. TIBExtract: Full BigInt value range now supported for Generators/Sequences.
672 tony 209
673 tony 307 20. TIBExtract: Select Procedures (Procedure type 1) now include "SUSPEND;" clause in their
674     stubs. Pedantic fix really, as procedures output in dependency order anyway.
675 tony 209
676 tony 307 21. TIBExtract: Package Headers and Package Bodies are now included in the extracted
677     DDL (Firebird 3 and later only).
678 tony 209
679 tony 307 22. TIBLookupComboBox Autocomplete Fixes:
680     i. Only appended text is now selected after autocomplete.
681     ii. Uppercase keys no longer ignored for autocomplete.
682     iii. Retain Prefix case is now honoured correctly.
683     iv. When a DataSource is assigned, typing after autocomplete now extends prefix
684     before autocomplete performed. i.e. behaviour now the same as when
685     no DataSource assigned.
686 tony 209
687 tony 307 23. TIBXScript: Single Line Comments starting with '--' are now ignored when occurring
688     between SQL statements.
689 tony 209
690 tony 307 24. TIBExtract: New published property CaseSensitiveObjectNames. If false (default) then
691     ObjectNames are converted to upper case before matching against metadata object
692     names, unless the objectname is delimited by double quotes, in which case, the
693     double quotes are removed and the remaining string is used (unmodified) to match
694     against the metadata object name.
695 tony 209
696 tony 307 If true then the ObjectName is used as is without modification and matched
697     against the metadata object name. No attempt is made to remove double quotes.
698 tony 209
699 tony 307 25. TIBExtract: New Extract Types: etDatabaseTriggers and etDDLTriggers. When used
700     with eoTrigger, these extract types can be used to select only Database Triggers,
701     or DDL Triggers or both. Ignored when etTable or etTrigger included in Extract Types.
702 tony 209
703 tony 307 26. TIBXScript: If an exception occurs during the processing of a statement, the
704     statement separate character is now reset to the default (';').
705 tony 221
706 tony 307 27. TIBDatabase: Reconnect method added and used by TIBXScript for reconnect.
707 tony 221
708 tony 307 28. TIBXScript: Transaction is no longer automatically reactivated immediately processing
709     a commit or reconnect statement and instead activated only when next SQL statement
710     is executed.
711 tony 221
712 tony 307 29. TIBSQL.HasField should no longer generate and exception when the field does not exist.
713 tony 225
714 tony 307 30. TIBXScript: case insensitive regex now used when matching statements instead of
715     converting statement to upper case.
716 tony 225
717 tony 307 31. TIBExtract: metadata comments now supported. New published property
718     IncludeMetaDataComments (default true). If true then metadata comments included
719     in extracted DDL. New Extract Object member eoComments. This may be used with
720     ExtractObject method to list all metadata comments.
721 tony 225
722 tony 307 32. TIBExtract: ListObjectNames method added.
723 tony 225
724 tony 307 33. Updated Database component editor to support additional connection string
725     types.
726 tony 226
727 tony 307 IBX Change Log version (2.2-0) Wed, 28 Feb 2018 10:57:45 +0000
728 tony 227
729 tony 307 NOTE: THE LOCATIONS OF SOME OF THE UNIT DIRECTORIES HAS CHANGED FROM IBX 2.1. THIS IS TO
730     AVOID DUPLICATE PPU WARNINGS. PLEASE REMOVE EARLIER VERSIONS OF IBX BEFORE INSTALLING THIS
731     RELEASE.
732 tony 229
733 tony 307 NOTE: THE DBADMIN DEMO REQUIRES THAT THE MemDSLaz PACKAGE IS INSTALLED IN THE LAZARUS IDE.
734 tony 229
735 tony 307 1. IBExtract: Identity columns - add additional check for null column for generator name.
736 tony 229
737 tony 307 2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
738     The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
739     information). However, this is also a very useful mechanism for returning updated computed by
740     column values. Values returned as a result of executing an Insert or Update statement
741     replace existing values in the current row for each corresponding column.
742 tony 229
743 tony 307 Previously, if a dataset's select query included read only (computed by) fields then
744     an automatic row refresh was performed after an insert or update query had been processed,
745     irrespective of the setting of the "ForcedUpdates" property. This has changed such
746     that an automatic refresh is no longer performed if an insert or update query contains
747     a returning clause that updates one or more fields on the current row. A full row
748     refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
749     field values and the select query contains read only fields. Use of Insert/update
750     returning should be significantly more efficient than executing a refresh query.
751 tony 229
752 tony 307 This behaviour change is intended to be backwards compatible and there should be no need to change
753     existing programs, other than to improve performance by using the new capability.
754 tony 229
755 tony 307 3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
756     they are called when the dataset row is being deleted, there is no value in
757     updating the current record from the query result. Instead, a new event handler
758     "OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
759     an OnDeleteReturning event handler is provided then it is called with the IResults returned
760     by the query. The event handler can then interrogate the query results and
761     perform whatever action is necessary. For example to confirm, to the user,
762     the deletion of a row with the returned values.
763 tony 231
764 tony 307 4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
765     any Computed By or Identity Columns. The IBTables example has been updated to
766     illustrate the computation of the employee Full Name on update.
767 tony 209
768 tony 307 5. TIBTable: The GeneratorField property is now published.
769 tony 151
770 tony 307 6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
771     When InsertSQL is generated, the Identity columns are not included in the list of values to
772     be inserted. A RETURNING clause is added to the insert statement to return the value of
773     each Identity column after the insert is executed.
774 tony 151
775 tony 307 7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
776     Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
777     Insert..Returning clause.
778 tony 101
779 tony 307 8. TIBGenerator: small performance improvement by not preparing query each time
780     a new value is generated.
781 tony 101
782 tony 307 9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
783    
784     10. Property editors will now sync table name to a System Table when "Include System
785     Tables" is selected and the query is for a System Table.
786    
787     11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
788     values are no longer converted to milliseconds from TDateTime and then back again
789     to TDateTime (the conversion to milliseconds is the default TDataset approach).
790    
791     12. Property Editors handling of Stored Procedures.
792     * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
793     which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
794     query).
795     * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
796    
797     13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
798     can be used to select a package. If non-empty, the stored procedure name is
799     expected to be a stored procedure defined in the specified package and the
800     generated SQL will be as required for a stored procedure located in a package.
801    
802     14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
803     a "Package Name" drop down box to allow selection of a Firebird 3 Package from
804     which a stored procedure can be selected. With no package name selected, non-package
805     stored procedures are listed.
806    
807     15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
808     for password on reconnect.
809    
810     16. TIBDatabase: use IAttachment for connection default character set id, code page
811     and character set name.
812    
813     17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
814     DB info lookups"
815    
816     18. IBExtract: now supports DDL Triggers and Grants to DDL objects.
817    
818     19. Add a property Editor for TIBUpdate.RefreshSQL.
819    
820     20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
821     parameters. This stops an exception being raised when the field cannot be
822     located in the record buffer.
823    
824     21. Property Editors now automatically include System Tables when opened and when the query table
825     is a System Table.
826    
827     22. IBServices: SQRB and SRB buffers are now reset when service query throws an exception.
828     This avoids errors due to a stale SQRB or SRB being used for the next query.
829    
830     23. IBServices: Service attach parameters now include "expected_db". This is used to
831     add the SPB item isc_spb_expected_db. This names a database using
832     an alternative Security Database (FB3 onwards) and allows (e.g. backup/restore) using such a
833     database. examples/services re-written to illustrate use of "expected_db".
834    
835     24. IBServices: TIBControlAndQueryService.WriteNextChunk no longer ignores isc_info_svc_timeout.
836     This avoids truncated backups when the server returns a timeout (busy) response.
837    
838     25. TIBDatabase: isc_dpb_page_size now supported as a database parameter when using TIBDatabase.CreateDatabase.
839    
840     26. TIBDatabase: DatabaseName property may now be prefixed by $TEMP$ or $DATADIR$ for local
841     databasenames. These are respectively expanded to the local system's temp directory
842     (including trailing delimiter) or to a prescribed data directory (including
843     trailing delimiter). Under Unix systems the data directory is a hidden directory
844     in the user's home directory. The hidden directory name is either the string returned
845     from the SysUtils "Vendor Name" or "IBX" if empty. In either case prefixed by a '.'.
846     Under Windows, the directory is the same as the Data Directory as decribed
847     above but instead prefixed by the User's application data path. These may be
848     used to improve application portability for Personal Databases.
849    
850     27. TIBTable: FieldDefs property is no longer published. Due to the use of TIBFieldDef
851     this has not worked for a long time and is not useful either. FieldDefs should be
852     managed using the Fields Editor as with any other dataset. To access the fields
853     editor for a TIBTable component, double click on the component. The fields editor
854     is then displayed.
855    
856     28. TIBDatabaseInfo: new properties/function
857     * DateDBCreated (returns date/time database created)
858     * TransactionCount (returns no. of active transactions)
859     * GetDatabasePage(PageNo: integer) (returns contents of specified database page - SYSDBA only).
860     * PagesFree (Firebird 3 or later)
861     * PagesUsed (Firebird 3 or later)
862     * Encrypted (returns true if database encrypted. (Firebird 3.0.3 or later only)
863     * EncryptionKeyName (returns the name of the encryption key if any (Firebird 3.0.3 or later only)
864    
865     29. IBServices classes now provided the decoded release number in the (array) property ServerVersionNo.
866    
867     30. TIBSecurityService now supports display/modification of the User Admin Role (Firebird 2.5 and later).
868    
869     31. TIBConfigService now has a procedure SetAutoAdmin(Value: boolean) to enable/disable
870     the automtic mapping of privileged OS users to the RDB$ADMIN role (Firebird 2.5 and later).
871    
872     32. TIBBackupService: New Option - NoDBTriggers equivalent to -nodbtriggers switch introduced
873     in the gbak utility at V.2.1 to prevent database-level and transaction-level triggers from
874     firing during backup and restore.
875    
876     33. Both TIBBackupService and TIBRestoreService now support backup/restore statistics options
877     for verbose output using the new property "StatisticsRequested".
878     see https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-util-gbak.html#rnfb25-util-gbakstats
879    
880     34. TIBRestoreService: now supports new options RestoreMetaDataOnly (Firebird 2.5 and later).
881    
882     35. TIBOnlineValidationService component added to the IBServices and the "Firebird Admin"
883     palette. This uses the online validation feature added in Firebird 2.5. The
884     services's properties enable inclusion/exclusion of tables and indexes using
885     regular expressions. See.
886     https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-apiods-api.html#rnfb25-apiods-api-onlinevalidation
887    
888     36. IBServices: procedure TIBConfigService.SetNoLinger added to set no linger
889     option on a database.
890    
891     37. TIBCustomService: Assign method implemented to allow copying of service login
892     context between service API components. "Detach" method now only detaches
893     service when last reference to the service interface detaches. Tidy up of
894     code for SetActive and Attach methods including password hiding.
895    
896     38. TIBDatabase: new properties: AuthenticationMethod and RemoteProtocol. Read only
897     and used to determine the auth method and protocol used for the connection.
898    
899     39. TIBDatabase: ensure that SQLDialect setting is used when creating a database using
900     a Create Database Statement generated by IBX.
901    
902     40. All IBServices now have an additional published property "PortNo". This may
903     be set to a non-standard port number when necessary. If zero then the default
904     port number is used.
905    
906     41: TIBLookupComboeditBox: Ensure dataset updated when change selected with the keyboard
907     and not just the mouse.
908    
909     42. TIBCustomDataset: reopen query if already active when a TIBControlLink is added.
910    
911     43. TIBTreeview: new ImageIndexField and SelectedIndexField Property allows the
912     image index and selected image index for each node to be set from a database field.
913    
914     44. TIBExtract: new extract type (etGrantsToUser) for use with eoDatabase. If included
915     then database schema includes grants to all users. If not present then the
916     only user grants included are those to User PUBLIC.
917    
918     45. TIBTreeView: performance improvement. When expanding include both expanded node
919     and child nodes in dataset.
920    
921    
922     IBX Change Log version (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
923    
924     1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
925     changes.
926    
927     2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
928     Bug could result in truncated multi-byte character set values.
929    
930     3. Changes consequential on moving fbintf character set utility functions from
931     IFirebirdAPI to IAttachment.
932    
933     4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
934    
935     5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
936     results in autocomplete ignoring prefix text.
937    
938     6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
939     entering a new name into the text box.
940    
941     7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
942     Firebird rather than recomputing it.
943    
944     8. Property Editor positioning tidy up: All IBX Property editors should now be
945     screen centre. Previously some were "poDesigned" which may be inappropriate
946     for multi monitor desktops.
947    
948     10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
949    
950     11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
951     a transaction and always reset the object.
952    
953     12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
954    
955     13. TIBXScript: Allow for override of database filename in Create Database statements.
956    
957     14. IBLocaldb: Support initialisation of the database from an SQL script in addition
958     to a gbak format archive.
959    
960     15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
961    
962     16. IBLocaldb: Drop database if error creating an empty database.
963    
964     17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
965     unless selected node not in current dataset.
966    
967     18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
968     to TIBCustomService, and IBlocalDB code tidy up.
969    
970     19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
971     behaviour due to uninitialised variable.
972    
973     20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
974     integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
975    
976     21. IBSQL: When Database changed ensure that all resources are freed.
977    
978     22. IBCustomDataset: When database changed ensure that queries an unprepared.
979    
980     23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
981     * Line Wrap on SQL Token boundaries (on user command)
982     * auto-complete table names in drop down list of table names
983     * Double click on tablename or field name adds to SQL text
984    
985     24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
986    
987     25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
988     TVariantArray. Seems to avoid memory corruption in Windows (probably a
989     workaround for a problem in fpc 3.0.4 win64).
990    
991     26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
992    
993     27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
994    
995     IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
996    
997     1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
998     include remote system name.
999    
1000     2. TIBExtract: No longer include comment header and COMMIT statement for empty
1001     tables when data included in output.
1002    
1003     3. Profiling: IBSQL now has conditional compilation flags to enable query performance
1004     and timing information to be written to stdout. This may be used to locate
1005     performance bottlenecks.
1006    
1007     4. SQLParser: only call "OnChanging" event handler when value is different.
1008    
1009     5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
1010    
1011     6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
1012     that BindFields is called when the query is next activated. Avoids FieldName
1013     not found error.
1014    
1015     7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
1016     purpose and allows the programmer to define any action they want for Update, Insert
1017     or Delete. This may be complex SQL (similar to a Trigger), application specific
1018     filtering of updates, or use of statements such as Grant or Revoke instead of
1019     normal DML. See User Manual for more information.
1020    
1021     IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
1022    
1023     1. TIBEvents: Fix uninitialised variable that could result in lost events.
1024    
1025     2. TIBExtract: Added support for FB3 "USAGE" privilege.
1026    
1027     3. TIBExtract: data formatted as Charset set "octets" is now output using
1028     hexadecimal notation.
1029    
1030     4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
1031     using a simple XML format.
1032    
1033     5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
1034     grants to these objects.
1035    
1036     6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
1037     dependency problems restoring complex databases.
1038    
1039     7. TIBXScript: This component has been restructured to allow for the processing of
1040     embedded XML in INSERT statements and to support interactive sources in addition
1041     to non-interactive data sources such as files.
1042    
1043     8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
1044    
1045     9. TIBXScript: ISQL compatiable Set statements are now supported:
1046     SET SQL DIALECT
1047     SET TERM
1048     SET AUTODDL
1049     SET BAIL
1050     SET ECHO
1051     SET COUNT
1052     SET STATS
1053     SET NAMES <character set>
1054    
1055     10. IBVersion unit added to hold current IBX Version Number information.
1056    
1057     11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
1058     and domain definitions.
1059    
1060     12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
1061     fully supported.
1062    
1063     13. TIBExtract: when a database dump includes data, the generator values are now also set.
1064    
1065     14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
1066    
1067     IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
1068    
1069     See also doc/IBX4LazarusGuide.pdf for important information on
1070     upgrading to IBX2.
1071    
1072     1. Size property of TIBStringField is now the width in characters of the field
1073     and not the byte length. This applies only to multi-byte character sets such
1074     as UTF8. The original approach aligned with TStringField. However, the TStringField
1075     code is not recognised as a bug and hence this change to align the behaviour.
1076     The TStringField change is expected in fpc 3.2.0.
1077    
1078     2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
1079     true (default) then Size property value saved in the lfm is ignored. Size is
1080     always set from the dynamic information read from the database. It is unclear
1081     why anyone would want to override this and set Size to false.
1082    
1083     3. ibxscript: should now handle correctly a Case..End statement within a procedure
1084     block.
1085    
1086     4. IBDatabase: new property - CreateIfNotExists. If true and database does not
1087     exist when an attempt is made to connect to it (run time only) then an attempt
1088     is made to create the database.
1089    
1090     5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
1091     has been successfully created as a result of a call to CreateDatabase or when
1092     creating a database after it was found not to exist.
1093    
1094     6. DBControlGrid: a race condition could result in the wrong row image being
1095     written to the cache. This has been avoided by a trip round the message
1096     loop before rendering the row image.
1097    
1098     7. DBControlGrid: It is strongly recommended not to open the source DataSet for
1099     a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
1100     known to risk corrupt rendering of row images when the control is first
1101     displayed. If necessary use "Application.QueueAsyncCall" to delay opening
1102     of the dataset (see DBControlGrid examples) until the Form's Window has been created.
1103    
1104     8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
1105     a TDateEdit control located on an editor panel.
1106    
1107     9. TIBExtract: brought up-to-date plus many bug fixes.
1108    
1109     10. DBControlGrid: Removed memory leak when updating rows.
1110    
1111     11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
1112    
1113     IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
1114    
1115     1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
1116     when target codepage is CP_NONE. This is a workaround for
1117     http://bugs.freepascal.org/view.php?id=30622.
1118    
1119     2. DBLog option removed from TIBStatisticalService - not supported by server
1120     since Firebird 1.5.
1121    
1122     3. ibxscript: An error is no longer generated for "on commit preserve rows" or
1123     similar.
1124    
1125     4. IBCodePage: updated mapping between codepages and character id.
1126    
1127     5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
1128     Firebird. Character sets with a char width of two are not UTF16.
1129    
1130     6. Strings received from the database are now always transliterated into UTF8
1131     regardless of the database character set or connection character set. This
1132     is for compatibility with the LCL.
1133    
1134     IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
1135    
1136     1. IBBlob: Defer reading of blob until read method called. This avoids having to
1137     read in an entire blob just to get the size of the blob. General performance
1138     improvement when opening datasets containing blobs.
1139    
1140     2. Clearing a Blob now sets the corresponding field's modified flag.
1141    
1142     3. IBLookupCombo: When not performing auto-complete, original query sort order
1143     is now used.
1144    
1145     4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
1146     determined.
1147    
1148     5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
1149    
1150     6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
1151     lazarus 1.6.0
1152    
1153     7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
1154     compilation error.
1155    
1156     IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
1157    
1158     1. No character set specified for connection: when a text blob is retrieved, the
1159     character set is determined by looking up the native character set using then
1160     Firebird API. Otherwise a text mode blob is assumed to have the same character
1161     set as the connection.
1162    
1163     2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
1164     for Login Dialog returing a change to the database path.
1165    
1166     3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
1167     to be changed from that given in the TIBDatabase/TIBServer component and for the
1168     entered value to be saved on a project specific basis (design time only).
1169    
1170     4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
1171     column fieldname. If they are the same then it is acts as a look up for the KeyValue
1172     Otherwise, it sets the column text to the selected ListField Value.
1173    
1174     5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
1175     column width.
1176    
1177     6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
1178     and a case insensitive search is requested.
1179    
1180     7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
1181     or column ListSource.
1182    
1183     8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
1184     unprepare) when closing and the text has not changed.
1185    
1186     9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
1187     Less likely to cause a cursor re-use error on Windows.
1188    
1189     10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
1190     Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
1191    
1192     11. TIBTreeView: Guard against nil destination on record changed
1193    
1194     12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
1195     string type with the code page set to reflect the returned field encoding after
1196     Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
1197     earlier versions.
1198    
1199     13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
1200     will now result in transliteration to the code page specified for the Firebird driver
1201     if the assigned string has a different code page. FPC 3.0.0 onwards only.
1202    
1203     14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
1204     is ignored and the lc_ctype value, when the database is opened, is set to align with
1205     the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
1206     platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
1207     3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
1208     the GETACP is used to determine the Windows code page.
1209    
1210     15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
1211     name used as the lc_ctype when the database was opened. Only valid while the
1212     Database is connected.
1213    
1214     16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
1215     id that corresponds to the DefaultCharSetName.
1216    
1217     IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
1218    
1219     1. Unix: If Firebird Embedded Server shared object is loaded and a local database
1220     path is given and database attach fails due to access permission issues on the
1221     temp directory or security database, then the attach is retried with "localhost:"
1222     prefixing the databasename. This should avoid problems when the database has to
1223     be accessed by a local (e.g. classic) server and libfbembed is used.
1224    
1225     2. Windows: revised search order for Firebird DLL:
1226     i. The Firebird Embedded Server in the application Directory.
1227     ii. If the FIREBIRD environment variable is set then the directory this
1228     points to is searched for the FB Client DLL and then then underlying
1229     "bin" directory.
1230     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
1231     is used to locate the Firebird installation directory and the underlying
1232     "bin" directory is searched for the FB Client DLL.
1233     iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
1234     are searched for the FB Client DLL.
1235     v. The PATH Environment variable is used to search for the FB Client DLL.
1236     vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
1237    
1238     3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
1239     See doc/readme.scriptengine and example applications.
1240    
1241     4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
1242     simplify the use of the embedded firebird server on both Linux and Windows platforms.
1243     See dpc/readme.localdatabase and example applications.
1244    
1245     5. IBDynamicGrid: Reordering on column header click should now also work for
1246     dynamic columns.
1247    
1248     6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
1249     between incrementing/decrementing the lock count and signalling the event.
1250    
1251     IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
1252    
1253     1.3.2 was never formally released and only made available as beta copies.
1254    
1255     1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
1256    
1257     2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
1258    
1259     3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
1260    
1261     4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
1262     i.e. when it is a calculated field
1263    
1264     5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
1265     This problem was due to a race condition between recalculating row heights and
1266     determining which row was selected by the mouse click. The row height calculation
1267     is now deferred by an extra trip round the message loop allowing the row to
1268     be always calculated on the current grid layout rather than risking it being
1269     calculated on the grid layout after the expanded row has been shrunk.
1270    
1271     6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
1272     Windows.
1273    
1274     7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
1275     These properties allow the (Firebird) character set name for the field and the max number of bytes per character
1276     to be determined at runtime. See doc/readme.charactersets.html.
1277    
1278     8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
1279     TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
1280    
1281     9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
1282     TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
1283     1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
1284    
1285     Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
1286     from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
1287     implies no truncation.
1288    
1289     10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
1290    
1291     11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
1292     (avoids "Not in Edit Mode" error).
1293    
1294     12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
1295    
1296     13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
1297     DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
1298    
1299     14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
1300    
1301     15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
1302    
1303     16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
1304    
1305     17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
1306    
1307     IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
1308    
1309     1. OnCloseUp Event Handler added to TDBLookupProperties
1310    
1311     2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
1312     problem with row size when exception is called.
1313    
1314     3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
1315    
1316     4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
1317     in a TCustomComboBox and ignores return key if in a TCustomMemo
1318    
1319     5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
1320     keyed in i.e. when autocomplete not performed
1321    
1322     6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
1323     console mode applications with all LCL required functions (builtin dialogs and
1324     cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
1325     not included in your project, IBX should compile and link with a console mode program.
1326     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
1327     console mode application or the IDE will automatically assume that your
1328     application is GUI based. Instead, you should include the ibexpressconsolemode package.
1329    
1330     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
1331     to use the built in dialogs and cursor management. IBDialogs is
1332     included by default if "ibexpress" is in your project source's "uses" clause.
1333     This should be the case for all projects created through the IDE. This is why
1334     you do not want to add the ibexpress package to console mode applications. The
1335     ibexpressconsolemode package has been created to allow console mode programs
1336     to avoid adding LCL dependencies when using IBX, while still having the
1337     unit search paths set up correctly.
1338    
1339     Existing users should check to ensure that the "ibexpress" unit is included in
1340     each project's source file (*.lpr).
1341    
1342     You may find that in order for the IDE to recognise that ibexpressconsolemode
1343     exists, you have to first open the package in the IDE and then close it. This
1344     adds it to the most recently accessed packages list. To make it permanently
1345     available, add the package name to lazarus' staticpackages.inc file.
1346    
1347     Thanks to Julio Jiménez for suggesting support of console mode.
1348    
1349     7. SQL Parser can now accept quoted strings that include new lines
1350    
1351     8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
1352     of text on start of edit. This is particularly useful when tabbing to a
1353     column and then inserting text.
1354    
1355     9. New Examples provided for IB Services and ISQLMonitor.
1356    
1357     10. Fix error when writing to blob streams that recorded only the last buffer
1358     write in the blob stream. In most cases, this did not cause a problem as the
1359     IB Blob Stream is written in a single write. However, with the TDBImage, write
1360     of a graphic type prefix was lost which caused a problem when the image could
1361     not be automatically recognised.
1362    
1363     11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
1364     already open" errors due to random numbers used for the cursor name being identical.
1365    
1366     12. IBTable: corrected error that could result in an "Index out of bounds" error
1367     when opening the table and the Primary Key is the last or only column in the
1368     table. Thanks to Rick Hoover for the fix.
1369    
1370     13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
1371     of "UTF-8", and update list of available database character sets. Existing
1372     users should check the current lc_ctype setting in their applications.
1373    
1374     IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
1375    
1376     1. Firebird Services: avoid List Index error when opening a service with an
1377     empty Params property.
1378    
1379     2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
1380     Link now set up in Loaded method - avoids occasional failure to apply
1381     SQL markup on initial open.
1382    
1383     3. "Employees" example performance improvements when scrolling.
1384    
1385     4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
1386     TFrame. Force recaching of selected frame to avoid GTK race (results in a
1387     random image cached).
1388    
1389     5. DBControlGrid: Should now react to changes in panel height at run time.
1390    
1391     6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
1392     even when further rows exist.
1393    
1394     7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
1395     always be derived from panel height and setting this property can cause confusion.
1396     Note for existing projects: to avoid a missing property error at run time,
1397     each form using the DBControlGrid must be opened, updated and saved in the IDE
1398     in order to remove the property value from the lfm.
1399    
1400    
1401     IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
1402    
1403     1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
1404     call Prepare before setting parameter values.
1405    
1406     2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
1407    
1408     3. Code tidyup and more robust handling of dsql information result vector.
1409    
1410     4. Support for centralised handling of transaction status changes. TIBTransaction
1411     has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
1412     and "AfterExecQuery". The first three are called after the same event is called
1413     for an IBCustomDataSet descendent using the Transaction. The fourth is called
1414     after a call to TIBSQL.ExecQuery, again using this transaction. These new events
1415     enable monitoring of transaction status changes for a given transaction to be
1416     handled in a single place. For example, when a change to the dataset occurs
1417     an indicator can be set that shows the user that in order to save changes,
1418     the transaction should be committed. Rather than doing this per dataset, this
1419     can now be done per transaction.
1420    
1421     5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
1422     the dataset is scrolled. However, any changes to the current row are, by default,
1423     discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
1424     have a new property "DataSetCloseAction" that adds automatic posting of changes
1425     on dataset close. If this property is set to dcDiscardChanges (default) then the
1426     behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
1427     then IBX will attempt to post any unsaved changes before the dataset is closed
1428     (and after the BeforeClose event handler is called). The exception is when the
1429     dataset is being closed as a result of a transaction rollback. In this case,
1430     no action is taken and any unsaved changes are discarded. This avoids both
1431     unnecessary overhead and the risk that a validation error may occur in the Post
1432     raising an exception and thereby preventing a rollback.
1433    
1434     6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
1435     In earlier versions, the Display Width was set to the maximum byte width rather than the character
1436     width. Display Widths are now corrected by dividing by the max byte width per character.
1437     For UTF8 character sets, the byte width is four and hence the Display Width will be
1438     the byte width divided by 4. The byte width of each character set is determined
1439     dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
1440     system table. (see also http://bugs.freepascal.org/view.php?id=27766).
1441    
1442     7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
1443    
1444     8. IBLookupComboEditBox: List should now always be restored to full list when the
1445     control loses focus. Default Key press default interval reduced to 200ms.
1446    
1447     9. DBControlGrid: Ensure that selection is changed to newly appended row, even
1448     when dataset rows are less than visible rows.
1449    
1450     10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
1451     does not exist or DataSet is empty. More responsive on dataset open. New event
1452     OnRestorePosition. Column sort disabled if no header row.
1453    
1454     11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
1455     while dataset state is dsInsert. Avoids posting errors.
1456    
1457     12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
1458     avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
1459    
1460     13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
1461    
1462     14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
1463     to solve a specific problem. That is when the dataset cursor is moved (e.g. by
1464     a grid mouse click and the current row is being edited or inserted. In this case, TDataset
1465     always "posts" the current record regardless or whether or not it may be more appropriate
1466     to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
1467     "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
1468     as the first action of the "Post" method and allows the handler to convert the Post
1469     into a Cancel if that is the appropriate action on moving to a different row. This is
1470     achieved by returning with "CancelPost" argument set to true. Note that an exception could be
1471     raised here, but it may still be more appropriate to validate a post and signal
1472     a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
1473    
1474     15. On Unix derived systems, the Firebird library name can now be given as a colon
1475     separated list. Each library name on the list is tried in turn, in left to right
1476     order with the first found being used as the firebird library. By default, on Linux,
1477     the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
1478     overidden by the FBLIB environment variable or the OnGetLibraryName function.
1479    
1480     Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
1481     then it will still attempt to access the database via the Firebird Server and will
1482     require a username and password. If only the pathname is given, then the username
1483     and password should be omitted and the unix file permissions are used to grant
1484     access.
1485    
1486     IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
1487    
1488     1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
1489     rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
1490     that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
1491     corresponds to a row of the linked DataSource. Any data aware control on the
1492     replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
1493    
1494     2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
1495     When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
1496     takes place during database access. This may be useful when there are performance issues with
1497     the change of cursor. Setting the property to false suppresses the change of cursor.
1498    
1499     3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
1500     and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
1501     Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
1502     making all changes permanent immediately rather than when the transaction is explicitly
1503     committed.
1504    
1505     4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
1506     using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
1507    
1508     IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
1509    
1510     Development version only.
1511    
1512     IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
1513    
1514     1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
1515     This is typically used during an "OnBeforeOpen" event handler to manipulate the
1516     "Where" and "Having" clauses to implement user specified filters of arbitrary
1517     complexity.
1518    
1519     2. A new Component Palette entry "Firebird Data Controls" is now available. This has
1520     three new data aware controls dependent on IBX and which make use of the SQL Parser.
1521     These are:
1522    
1523     - TIBLookupComboEditBox
1524     - TIBDynamicGrid
1525     - TIBTreeview
1526    
1527     TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
1528     of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
1529     to revise the available list and restrict it to items that are prefixed by the
1530     typed text (either case sensitive or case insensitive). Autoinsert allows a
1531     newly typed entry to be added to the list dataset and included in the available
1532     list items.
1533    
1534     TIBDynamicGrid is a TDBGrid descendent that provides for:
1535     - automatic resizing of selected columns to fill the available row length
1536     - automatic positioning and sizing of a "totals" control, typically at the
1537     column footer, on a per column basis.
1538     - DataSet resorting on header row click, sorting the dataset by the selected column.
1539     A second click on the same header cell reversed the sort order.
1540     - Support for a "Panel Editor". That is on clicking the indicator column, the row
1541     is automatically expanded and a panel superimposed on it. The panel can have any
1542     number of child controls, typically data aware controls with the same datasource
1543     as the grid allowing for editing of additional fields and more complex editors.
1544     - Reselection of the same row following resorting.
1545     - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
1546     Its properties are specified on a per column basis and allows for one or more
1547     columns to have their values selected from a list provided by a dataset.
1548     Autocomplete and autoinsert are also available. The existing picklist editor
1549     is unaffected by the extension.
1550    
1551     TIBTreeView is a data aware TCustomTreeView.
1552    
1553     3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
1554     zero scale will no longer return an error. An Int64 will be returned instead.
1555    
1556     4. TIBTransaction now has events for Before and After Transaction End and a new function
1557     "GetEndAction" allowing the EndAction to be accessed by these event handlers.
1558    
1559     5. TIBQuery can now handle correctly queries which contain the same keyword parameter
1560     repeated multiple times.
1561    
1562     6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
1563     check used to get in the way of using Stored Procedures, and "Update or Insert"
1564     statements.
1565    
1566     7. Insert, Modify and Delete property Editors now support Query Generation from
1567     Stored Procedures.
1568    
1569     8. Three new examples illustrate the use of the new IB Controls
1570    
1571    
1572     IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
1573    
1574     1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
1575     setting performance. See "readme.field+param.names in the doc folder.(Thanks to
1576     Gabor Boros for reporting this problem and for testing the improvements).
1577    
1578     2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
1579     See readme.field+param.names in the doc folder.
1580    
1581     3. IBX SQL Editors will now automatically add double quotes around column names when the database
1582     dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
1583    
1584     4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
1585    
1586     5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
1587     actions.
1588    
1589     6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
1590     thanks to Yuriy Kopnin for pointing this out).
1591    
1592     7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
1593    
1594     8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
1595     for both fields and parameter setting.
1596    
1597     9. Changes to the Select SQL in an IBCustomDataset descendent should now be
1598     visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
1599    
1600     10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
1601     when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
1602    
1603     11. TIBTable now has a property editor for "MasterFields"
1604    
1605     12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
1606     GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
1607    
1608     13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
1609     of settings is unrecognised. Selecting this radio button has no effect on the settings.
1610    
1611    
1612     IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
1613    
1614     1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
1615    
1616     IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
1617    
1618     1. In a TIBCustomDataset descendent, a generator now only sets the value when
1619     it is null. This allows for alternative user defined setting of the generator
1620    
1621     Many thanks to Julio Jiménez for this fix
1622    
1623     2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
1624     and suggests that the user may have forgotten to install it.
1625    
1626     IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
1627    
1628     1. Conditional compilation used to limit registration of TIntegerField to
1629     Lazarus versions less than 1.1
1630    
1631     2. When a database connection is created, character set is now by default set
1632     to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
1633     1250 to 1254.
1634    
1635    
1636     IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
1637    
1638     1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
1639    
1640    
1641     IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
1642    
1643     1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
1644     Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
1645    
1646     2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
1647     package is changed to do this (which it should do).
1648    
1649     IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
1650    
1651     1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
1652    
1653     2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
1654    
1655     3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
1656    
1657     4. Property editors should now correctly resize.
1658    
1659     5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
1660     (restored original functionality)
1661    
1662     6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
1663     library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.

Properties

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