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Revision: 287
Committed: Thu Apr 11 08:51:23 2019 UTC (5 months ago) by tony
File size: 66501 byte(s)
Log Message:
Fixes Merged
Line User Rev File contents
1 tony 287 IBX Change Log version (2.3-4 Build 11661) Thu, 11 Apr 2019 09:43:38 +0100
2    
3     1. TIBXDataSet and Generators: Generator Names that are not all upper case or
4     not SQL Identifiers are now supported.
5    
6     2. TIBXScript: Set Generator is no longer rejected as unrecognised SQL and is
7     passed to the Firebird engine for execution.
8    
9 tony 280 IBX Change Log version (2.3-3 Build 11512) Fri, 28 Dec 2018 10:04:17 +0000
10 tony 266
11 tony 272
12 tony 267 1. New property for TIBDatabase and TIBXServicesConnection. This is "ConfigOverrides"
13     and is used to override the default settings in the client side "firebird.conf" This
14     includes "WireCompression" and "WireCrypt". The value of this property is a "TStrings".
15     Each line of the string list should be a setting in the same format as "firebird.conf".
16     For example "WireCompression = true" in order to request wire compression on the client side.
17 tony 266
18 tony 267 Note: explicit settings in the client side "firebird.conf" appear to take precedence
19     over settings given in TIBDatabase and TIBXServicesConnection. Many client side settings
20     also require a compatible setting in the server side "firebird.conf". For example
21     "WireCompression = true" must also be set in the server's "firebird.conf" for wire
22     compression to be used.
23 tony 266
24 tony 267 Whether or not WireCompression or WireCrypt are in use can be checked using the information
25     returned with the Client/Server protocol version. See ibx/examples/dbadmin and
26     ibx/examples/dbinfo for examples of how to display this information.
27 tony 263
28 tony 267 2. New property for TIBDatabase and TIBXServicesConnection: "WireCompression". This
29     is a "convenience" property. If set the "WireCompression=true" is added to the
30     ConfigOverrides. If unchecked then this setting is removed.
31    
32 tony 270 3. TIBExtract: 64-bit integer types are now correctly extracted as "BIGINT" and
33     not "INT64".
34    
35     4. New published properties for TIBCSVDataOut, TIBInsertStmtsOut and TIBBlockFormatOut
36     These are:
37     property TimestampFormat: string;
38     property DateFormat: string;
39     property TimeFormat: string;
40    
41     Respectively, these provide the date time format templates for SQL types: TIMESTAMP,
42     DATETIME and TIME. The format strings use the standard FPC date/time format
43     characters (see https://www.freepascal.org/docs-html/rtl/sysutils/formatchars.html).
44    
45     If any of the above properties are set to an empty string, then the locale default
46     is used. This uses the ShortDateFormat and the LongTimeFormat. In timestamp, the
47     locale default is extended by appending '.zzz' to include milliseconds.
48    
49     TIBCSVDataOut by default sets these properties to the empty string, while the other
50     two use: 'yyyy.mm.dd hh:nn:ss.zzz', 'yyyy.mm.dd' and 'hh:nn:ss.zzz' respectively.
51    
52     5. New published property for TIBCSVDataOut:
53     property QuoteStrings: boolean (default true)
54    
55     If false then strings are unquoted, otherwise, the QuoteChar property value is
56     used to delimit each and every string in the output.
57    
58     6. New published properties for TIBCSVDataOut:
59     property FieldSeparator: string;
60     property HeaderSeparator: string;
61    
62     Respectively, these provide the separator character(s) used to separate fields
63     in data and header rows. Both default to ','.
64    
65     7. New published properties for TIBCSVDataOut and TIBBlockFormatOut:
66     TOnFormatTextString = procedure(sender: TObject; var TextString: string) of object;
67     property OnFormatTextString;
68    
69     This event handler can be used to process text strings before they are included
70     in the output e.g. to replace unprintable characters with alternative strings.
71     This only applies to columns with an SQL Type of SQL_VARYING and SQL_TEXT.
72    
73     8. TIBDataSet now raises an exception when ParamByName called with an invalid parameter name.
74 tony 272 Uses "FindParam" if in order to find out if a parameter with a given name exists
75     and without raising and exception if it does not.
76 tony 270
77 tony 272 9. TIBQuery now uses IBX SQL Parser instead of the TParams SQL parser in order to ensure
78 tony 270 consistency with SQL queries.
79    
80     10. CaseSensitiveParameterNames property added to TIBSQL, TIBDataSet and TIBQuery.
81     When true, SQL statement parameter names are parsed case sensitive. Note for
82     TIBDataSet only applies to Select query.
83    
84 tony 271 11. IBEvents: removing a TIBEvent component from a form should no longer result in
85     an IDE exception.
86    
87 tony 272 12. LocalDBSupport: initial database creation should now work correctly
88     when the schema source is an sql file.
89    
90     13. TIBCMLocalDBSupport: new event handler "property OnProgressEvent: TOnProgressEvent"
91     when defined, this handler will be called by the internal TIBXScript during
92     initial database creation when the schema source is an sql file and may be used
93     to provide a visual indication of progress in console mode.
94    
95     14. TCustomIBLocalDBSupport: new public property "InOnCreateDB: boolean". This is set
96     to true while a new local database is being created and its schema populated.
97     Useful in (e.g.) TIBDatabase.OnAfterConnect handler to suppress actions
98     when the database is disconnected/connected during the create DB procedure.
99    
100     15. TIBXScript: any User/password parameters found in a CREATE DATABASE statement
101     are now always ignored and replaced by the user name and password provided as
102     the login parameters for the TIBDatabase referenced from the TIBXScript. The
103     IgnoreCreateDatabase property still applies and the CREATE DATABASE statement is
104     completely ignored if this property is true.
105    
106     16. Code tidyup in IBTreeView: Node properties initialisation moved from TIBTreeView.AddNodes
107     to TIBTreeView.Added. An OnAddition event handler is no longer needed to initialise
108     ImageIndex and SelectImageIndex values on AddNode.
109    
110     17. TIBDatabase.Attachment and TIBXServicesConnection.ServicesIntf properties are now
111     read/write. This should enabled (e.g.) multiple instances of TIBDatabase to share
112     the same database connection.
113    
114     18. TIBDataSet and TIBQuery now support the TDataSet "Filter" property.
115     if provided, this should be an conditional SQL expression suitable for
116     including in an SQL Select statement "where" clause. If non-empty and the
117     "Filtered" property is true then the SQL expression provided as the value of
118     the "Filter" property is "ANDed" with any existing condition statement
119     in the SQL statement's "Where" clause.
120    
121     If the "Filter" property is set at run time, the "Filtered" property is true
122     and the dataset is already open, then the dataset is closed and re-opened automatically.
123    
124     The "Filter" condition may include IBX style parameters. In which case, their
125     value must be set by the dataset's "OnBeforeOpen" event handler.
126    
127     This is a public property for TIBDataSet and TIBQuery query and intended for
128     use at run time.
129    
130     Note: The property is a published property of TIBTable. The TIBTable functionality
131     is unaffected by this change.
132    
133 tony 267 IBX Change Log version (2.3-2) Wed, 05 Dec 2018 12:19:23 +0000
134    
135 tony 263 1. Remove need to check for IsMultiThread by providing access to GUI timers via
136     IBGUIInterface. Note: master/detail delay timer does not apply to console
137     mode apps.
138    
139     2. TIBCustomDataSet: SQLParser ignored if it does not contain a valid select
140     statement. This avoids problems if "Execute Block" is used as the Query.
141    
142     3. IBSQLParser now uses the common SQL tokeniser from fbintf. This replaces the
143     internal SQL tokeniser routines.
144    
145     4. IBSQLParser: new property NotaSelectStmt. Set to true if SQL fails to parse
146     as a select statement, with or without CTEs.
147    
148     5. IBSQLParser: parser now recognises the "ROWS" clause.
149    
150     6. TIBXScript now uses the common SQL tokeniser from fbintf. This replaces the
151     internal SQL tokeniser routines.
152    
153     7. Fix error in TIBXScript processing of "set" statements. This avoids exceptions
154     being raised for valid set statements processed by a data formatter.
155    
156     8. New published property for TIBDatabase and TIBXServicesConnection. This is
157     FirebirdLibraryPathName: string. If not empty it is used to explicitly specify
158     the path of the Firebird Library used by the database/services connection.
159    
160     9. New read only public property for TIBDatabase and TIBXServicesConnection. This
161     is FirebirdAPI and returns the IFirebirdAPI interface used by the database/
162     services connection.
163    
164     10.SQL Property editors now quote parameter names if "Quote identifier" is selected
165     or param name is not a valid SQL identifier.
166    
167     11. IBLookupComboEditBox: In Lazarus 2.0, TDBLookupComboBox takes a more restrictive
168     view of whether the text box should be editable when no DataSource is specified.
169     TIBLookupComboEditBox has been updated to workaround this problem. As long as
170     ReadOnly is false, the text box is editable when no DataSource is specified.
171    
172     12. AllowUseOfFBLIB is now set to "true" at design time. This is to allow use of
173     the FBLIB environment variable. If you do not want to permit this then you
174     must modify the Register procedure in the design/IBDBReg.pas unit to remove
175     this setting.
176    
177 tony 241 IBX Change Log version (2.3-1) Thu, 25 Oct 2018 14:39:45 +0100
178    
179     1. IBCustomDataset: replace deprecated function ValidUTF8String with call to
180     Utf8EscapeControlChars
181    
182 tony 232 IBX Change Log version (2.3-0) Mon, 16 Apr 2018 09:48:06 +0100
183 tony 101
184 tony 209 IMPORTANT: the source code tree has been re-organised for IBX 2.3. Please remove
185     all previous copies of the IBX source code tree before installing this release.
186    
187     The IBX packages used by most users have not changed, with one exception. The
188     IBServices unit has been moved to the package iblegacyServices.lpk. To continue
189     to use the IBServices unit in your applications, please add the iblegacyServices
190     to the list of dependencies. To do this, open the Project Inspector and select
191     Add->New Requirement and select "ibLegacyServices" from the list of available
192     packages.
193    
194     1. New unit IBXServices. The IBXServices unit is a re-architectured update of
195     the IBServices unit providing what is intended to be a clearer and easier to
196     use set of IB Services components. See Chapter 10 of the IBX User Guide for
197     more information and the guide to "Firebird Service Management Using IBX".
198     As indicated above, the legacy services components are still available and
199     provided in a separate package. There is no need to update working applications
200     using the older versions except for an additional package dependency.
201    
202     2. The IBX packages and source code tree have been re-organised in an attempt to
203     finally get rid of the "duplicate ppu" warnings. This re-organisation should
204     not affect existing users. Section 2.3 of the IBX User Guide describes the
205     new set of IBX packages.
206    
207     3. The ibx/examples/DBAdmin and the ibx/examples/services example have been
208     updated to use the new Services API components.
209    
210     4. The iblocal package has been updated to use the new Services API components.
211    
212     5. procedure SetAutoAdmin; in the new IBX Services this method is now a member of
213     TIBXSecurityService. It had been wrongly classified in the previous version
214     as a per database configuration item. It is global to a server and hence
215     correctly positioned as part of the Security Package. In the DBAdmin example,
216     the setting has moved to the mappings page.
217    
218     6. TIBXScript: IgnoreCreateDatabase added. If true then CREATE DATABASE statements
219     are ignored.
220    
221     7. TIBDatabase: DropDatabase now ensures that all transactions have been properly
222     closed before the database is dropped. Before and After Disconnect event handlers
223     are also fired.
224    
225     8. TIBTransaction: OnStartTransaction event now fires every time the transaction
226     is started and not just the first time.
227    
228     9. IBDataOutput: Use FormatFloat for all performance statistics to avoid platform
229     depenendency with comp type.
230    
231     10. IBDataOutput: select query data output is now sent to stdout instead of stderr.
232    
233     11. TIBDatabase: Remove regression. If a user login dialog changes the DatabaseName
234     then this is recognised and not ignored.
235    
236     12. TIBDataSet, TIBQuery, TIBTable: additions:
237     function GetRowsAffected(var SelectCount, InsertCount, UpdateCount, DeleteCount: integer): boolean;
238     function GetPerfStatistics(var stats: TPerfCounters): boolean;
239     property EnableStatistics: boolean read FEnableStatistics write SetEnableStatistics;
240    
241     GetRowsAffected returns the affected row counts from the last insert/update/delete
242     if EnableStatistics = true then GetPerfStatistics returns the current stats
243     counters for the select query. Note: stats accumulate after each fetch from
244     the database. To get total query cost after open, call the "Last" method
245     and then GetPerfStatistics.
246    
247     See ibx/examples/consolemode for an example of the use of GetPerfStatistics
248    
249     13. TIBExtract: Identity columns DDL. "Start with clause" now correctly encapsulated
250     in parenthesises.
251    
252     14. TIBExtract: new published property "AlwaysQuoteIdentifiers". If true then in dialect 3
253     SQL identifiers are always delimited by double quotes. If false, then they are
254     only delimited if the identifier is a reserved word, contains lower case or special
255     characters. Set this property to true to retain previous behaviour.
256    
257     15. Insert SQL Property Editor. In Insert Returning Clause, Identity column names
258     are now inserted in double quotes if not Reserved Words or valid SQL Identifiers.
259    
260     16. TIBDataSet, TIBQuery, TIBTable: addition:
261     property MasterDetailDelay: integer {defaults to zero}
262    
263     When non-zero and the dataset is a detail table referencing a master table
264     through either a MasterSource (TIBTable) or a DataSource (TIBDataSet, TIBQuery)
265     then a synchronisation delay is added (in milliseconds) between the master
266     row changing and the detail dataset being re-opened. If the master dataset
267     is scrolled before the delay expires then the delay is reset. This can be used
268     to avoid performance overheads when scrolling through a large master dataset.
269    
270     Note: uses fptimer and hence requires a thread manager. Under Linux the
271     chreads unit must be included in your project. TTimer is not used in order
272 tony 213 to avoid an LCL dependency. Requires FPC 3.0.2 or later.
273 tony 209
274     17. TIBExtract: User role grants now excluded when etGrantsToUser not specified
275     with Extract Option eoDatabase.
276    
277     18. TIBLookupComboEditBox: Workaround added for https://bugs.freepascal.org/view.php?id=33428
278 tony 225 When a deLayoutChanged event is reported on the ListSource dataset, the
279 tony 209 combobox text is updated. This allows a listsource (detail) to be in a Master/Detail
280     relationship with the control's datasource (master).
281    
282 tony 221 19. TIBExtract: Full BigInt value range now supported for Generators/Sequences.
283    
284 tony 226 20. TIBExtract: Select Procedures (Procedure type 1) now include "SUSPEND;" clause in their
285 tony 221 stubs. Pedantic fix really, as procedures output in dependency order anyway.
286    
287 tony 226 21. TIBExtract: Package Headers and Package Bodies are now included in the extracted
288 tony 221 DDL (Firebird 3 and later only).
289    
290 tony 225 22. TIBLookupComboBox Autocomplete Fixes:
291     i. Only appended text is now selected after autocomplete.
292     ii. Uppercase keys no longer ignored for autocomplete.
293     iii. Retain Prefix case is now honoured correctly.
294     iv. When a DataSource is assigned, typing after autocomplete now extends prefix
295     before autocomplete performed. i.e. behaviour now the same as when
296     no DataSource assigned.
297    
298 tony 226 23. TIBXScript: Single Line Comments starting with '--' are now ignored when occurring
299 tony 225 between SQL statements.
300    
301     24. TIBExtract: New published property CaseSensitiveObjectNames. If false (default) then
302     ObjectNames are converted to upper case before matching against metadata object
303     names, unless the objectname is delimited by double quotes, in which case, the
304     double quotes are removed and the remaining string is used (unmodified) to match
305     against the metadata object name.
306    
307     If true then the ObjectName is used as is without modification and matched
308     against the metadata object name. No attempt is made to remove double quotes.
309    
310 tony 226 25. TIBExtract: New Extract Types: etDatabaseTriggers and etDDLTriggers. When used
311     with eoTrigger, these extract types can be used to select only Database Triggers,
312     or DDL Triggers or both. Ignored when etTable or etTrigger included in Extract Types.
313    
314 tony 227 26. TIBXScript: If an exception occurs during the processing of a statement, the
315     statement separate character is now reset to the default (';').
316    
317 tony 229 27. TIBDatabase: Reconnect method added and used by TIBXScript for reconnect.
318    
319     28. TIBXScript: Transaction is no longer automatically reactivated immediately processing
320     a commit or reconnect statement and instead activated only when next SQL statement
321     is executed.
322    
323     29. TIBSQL.HasField should no longer generate and exception when the field does not exist.
324    
325     30. TIBXScript: case insensitive regex now used when matching statements instead of
326     converting statement to upper case.
327    
328     31. TIBExtract: metadata comments now supported. New published property
329     IncludeMetaDataComments (default true). If true then metadata comments included
330     in extracted DDL. New Extract Object member eoComments. This may be used with
331     ExtractObject method to list all metadata comments.
332    
333     32. TIBExtract: ListObjectNames method added.
334    
335 tony 231 33. Updated Database component editor to support additional connection string
336     types.
337    
338 tony 209 IBX Change Log version (2.2-0) Wed, 28 Feb 2018 10:57:45 +0000
339    
340 tony 151 NOTE: THE LOCATIONS OF SOME OF THE UNIT DIRECTORIES HAS CHANGED FROM IBX 2.1. THIS IS TO
341 tony 152 AVOID DUPLICATE PPU WARNINGS. PLEASE REMOVE EARLIER VERSIONS OF IBX BEFORE INSTALLING THIS
342 tony 151 RELEASE.
343    
344     NOTE: THE DBADMIN DEMO REQUIRES THAT THE MemDSLaz PACKAGE IS INSTALLED IN THE LAZARUS IDE.
345    
346 tony 107 1. IBExtract: Identity columns - add additional check for null column for generator name.
347 tony 101
348     2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
349     The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
350 tony 107 information). However, this is also a very useful mechanism for returning updated computed by
351     column values. Values returned as a result of executing an Insert or Update statement
352     replace existing values in the current row for each corresponding column.
353 tony 101
354 tony 107 Previously, if a dataset's select query included read only (computed by) fields then
355     an automatic row refresh was performed after an insert or update query had been processed,
356     irrespective of the setting of the "ForcedUpdates" property. This has changed such
357     that an automatic refresh is no longer performed if an insert or update query contains
358     a returning clause that updates one or more fields on the current row. A full row
359     refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
360     field values and the select query contains read only fields. Use of Insert/update
361 tony 123 returning should be significantly more efficient than executing a refresh query.
362 tony 107
363     This behaviour change is intended to be backwards compatible and there should be no need to change
364     existing programs, other than to improve performance by using the new capability.
365    
366 tony 118 3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
367     they are called when the dataset row is being deleted, there is no value in
368     updating the current record from the query result. Instead, a new event handler
369     "OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
370     an OnDeleteReturning event handler is provided then it is called with the IResults returned
371     by the query. The event handler can then interrogate the query results and
372     perform whatever action is necessary. For example to confirm, to the user,
373     the deletion of a row with the returned values.
374    
375     4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
376 tony 107 any Computed By or Identity Columns. The IBTables example has been updated to
377     illustrate the computation of the employee Full Name on update.
378    
379 tony 118 5. TIBTable: The GeneratorField property is now published.
380 tony 107
381 tony 118 6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
382 tony 101 When InsertSQL is generated, the Identity columns are not included in the list of values to
383     be inserted. A RETURNING clause is added to the insert statement to return the value of
384     each Identity column after the insert is executed.
385    
386 tony 118 7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
387 tony 107 Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
388     Insert..Returning clause.
389 tony 104
390 tony 118 8. TIBGenerator: small performance improvement by not preparing query each time
391 tony 107 a new value is generated.
392 tony 104
393 tony 118 9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
394 tony 107
395 tony 118 10. Property editors will now sync table name to a System Table when "Include System
396     Tables" is selected and the query is for a System Table.
397 tony 105
398 tony 118 11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
399 tony 107 values are no longer converted to milliseconds from TDateTime and then back again
400     to TDateTime (the conversion to milliseconds is the default TDataset approach).
401 tony 105
402 tony 118 12. Property Editors handling of Stored Procedures.
403 tony 107 * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
404     which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
405     query).
406     * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
407 tony 106
408 tony 118 13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
409 tony 107 can be used to select a package. If non-empty, the stored procedure name is
410     expected to be a stored procedure defined in the specified package and the
411     generated SQL will be as required for a stored procedure located in a package.
412    
413 tony 118 14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
414 tony 107 a "Package Name" drop down box to allow selection of a Firebird 3 Package from
415     which a stored procedure can be selected. With no package name selected, non-package
416     stored procedures are listed.
417    
418 tony 118 15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
419 tony 109 for password on reconnect.
420 tony 107
421 tony 143 16. TIBDatabase: use IAttachment for connection default character set id, code page
422 tony 118 and character set name.
423 tony 109
424 tony 118 17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
425     DB info lookups"
426    
427 tony 143 18. IBExtract: now supports DDL Triggers and Grants to DDL objects.
428 tony 118
429 tony 127 19. Add a property Editor for TIBUpdate.RefreshSQL.
430 tony 118
431 tony 139 20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
432     parameters. This stops an exception being raised when the field cannot be
433     located in the record buffer.
434 tony 127
435 tony 141 21. Property Editors now automatically include System Tables when opened and when the query table
436     is a System Table.
437 tony 139
438 tony 150 22. IBServices: SQRB and SRB buffers are now reset when service query throws an exception.
439 tony 143 This avoids errors due to a stale SQRB or SRB being used for the next query.
440 tony 141
441 tony 143 23. IBServices: Service attach parameters now include "expected_db". This is used to
442     add the SPB item isc_spb_expected_db. This names a database using
443     an alternative Security Database (FB3 onwards) and allows (e.g. backup/restore) using such a
444     database. examples/services re-written to illustrate use of "expected_db".
445 tony 141
446 tony 143 24. IBServices: TIBControlAndQueryService.WriteNextChunk no longer ignores isc_info_svc_timeout.
447     This avoids truncated backups when the server returns a timeout (busy) response.
448    
449     25. TIBDatabase: isc_dpb_page_size now supported as a database parameter when using TIBDatabase.CreateDatabase.
450    
451     26. TIBDatabase: DatabaseName property may now be prefixed by $TEMP$ or $DATADIR$ for local
452     databasenames. These are respectively expanded to the local system's temp directory
453 tony 150 (including trailing delimiter) or to a prescribed data directory (including
454 tony 143 trailing delimiter). Under Unix systems the data directory is a hidden directory
455     in the user's home directory. The hidden directory name is either the string returned
456     from the SysUtils "Vendor Name" or "IBX" if empty. In either case prefixed by a '.'.
457     Under Windows, the directory is the same as the Data Directory as decribed
458     above but instead prefixed by the User's application data path. These may be
459 tony 150 used to improve application portability for Personal Databases.
460 tony 143
461     27. TIBTable: FieldDefs property is no longer published. Due to the use of TIBFieldDef
462     this has not worked for a long time and is not useful either. FieldDefs should be
463     managed using the Fields Editor as with any other dataset. To access the fields
464     editor for a TIBTable component, double click on the component. The fields editor
465     is then displayed.
466    
467     28. TIBDatabaseInfo: new properties/function
468     * DateDBCreated (returns date/time database created)
469     * TransactionCount (returns no. of active transactions)
470     * GetDatabasePage(PageNo: integer) (returns contents of specified database page - SYSDBA only).
471     * PagesFree (Firebird 3 or later)
472     * PagesUsed (Firebird 3 or later)
473     * Encrypted (returns true if database encrypted. (Firebird 3.0.3 or later only)
474     * EncryptionKeyName (returns the name of the encryption key if any (Firebird 3.0.3 or later only)
475    
476     29. IBServices classes now provided the decoded release number in the (array) property ServerVersionNo.
477    
478     30. TIBSecurityService now supports display/modification of the User Admin Role (Firebird 2.5 and later).
479    
480     31. TIBConfigService now has a procedure SetAutoAdmin(Value: boolean) to enable/disable
481     the automtic mapping of privileged OS users to the RDB$ADMIN role (Firebird 2.5 and later).
482    
483     32. TIBBackupService: New Option - NoDBTriggers equivalent to -nodbtriggers switch introduced
484     in the gbak utility at V.2.1 to prevent database-level and transaction-level triggers from
485     firing during backup and restore.
486    
487     33. Both TIBBackupService and TIBRestoreService now support backup/restore statistics options
488     for verbose output using the new property "StatisticsRequested".
489     see https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-util-gbak.html#rnfb25-util-gbakstats
490    
491     34. TIBRestoreService: now supports new options RestoreMetaDataOnly (Firebird 2.5 and later).
492    
493     35. TIBOnlineValidationService component added to the IBServices and the "Firebird Admin"
494     palette. This uses the online validation feature added in Firebird 2.5. The
495     services's properties enable inclusion/exclusion of tables and indexes using
496     regular expressions. See.
497     https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-apiods-api.html#rnfb25-apiods-api-onlinevalidation
498    
499     36. IBServices: procedure TIBConfigService.SetNoLinger added to set no linger
500     option on a database.
501    
502     37. TIBCustomService: Assign method implemented to allow copying of service login
503     context between service API components. "Detach" method now only detaches
504     service when last reference to the service interface detaches. Tidy up of
505     code for SetActive and Attach methods including password hiding.
506    
507 tony 150 38. TIBDatabase: new properties: AuthenticationMethod and RemoteProtocol. Read only
508 tony 143 and used to determine the auth method and protocol used for the connection.
509    
510     39. TIBDatabase: ensure that SQLDialect setting is used when creating a database using
511     a Create Database Statement generated by IBX.
512    
513     40. All IBServices now have an additional published property "PortNo". This may
514     be set to a non-standard port number when necessary. If zero then the default
515     port number is used.
516    
517     41: TIBLookupComboeditBox: Ensure dataset updated when change selected with the keyboard
518     and not just the mouse.
519    
520     42. TIBCustomDataset: reopen query if already active when a TIBControlLink is added.
521    
522     43. TIBTreeview: new ImageIndexField and SelectedIndexField Property allows the
523     image index and selected image index for each node to be set from a database field.
524    
525     44. TIBExtract: new extract type (etGrantsToUser) for use with eoDatabase. If included
526     then database schema includes grants to all users. If not present then the
527     only user grants included are those to User PUBLIC.
528    
529     45. TIBTreeView: performance improvement. When expanding include both expanded node
530     and child nodes in dataset.
531    
532    
533 tony 90 IBX Change Log version (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
534 tony 56
535     1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
536     changes.
537    
538 tony 58 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
539     Bug could result in truncated multi-byte character set values.
540    
541 tony 60 3. Changes consequential on moving fbintf character set utility functions from
542     IFirebirdAPI to IAttachment.
543    
544 tony 62 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
545    
546 tony 64 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
547     results in autocomplete ignoring prefix text.
548    
549 tony 65 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
550     entering a new name into the text box.
551    
552 tony 66 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
553     Firebird rather than recomputing it.
554    
555 tony 67 8. Property Editor positioning tidy up: All IBX Property editors should now be
556     screen centre. Previously some were "poDesigned" which may be inappropriate
557     for multi monitor desktops.
558    
559 tony 80 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
560    
561     11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
562     a transaction and always reset the object.
563    
564     12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
565    
566     13. TIBXScript: Allow for override of database filename in Create Database statements.
567    
568     14. IBLocaldb: Support initialisation of the database from an SQL script in addition
569     to a gbak format archive.
570    
571     15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
572    
573     16. IBLocaldb: Drop database if error creating an empty database.
574    
575     17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
576     unless selected node not in current dataset.
577    
578     18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
579     to TIBCustomService, and IBlocalDB code tidy up.
580    
581     19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
582     behaviour due to uninitialised variable.
583    
584     20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
585     integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
586    
587     21. IBSQL: When Database changed ensure that all resources are freed.
588    
589     22. IBCustomDataset: When database changed ensure that queries an unprepared.
590    
591 tony 84 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
592     * Line Wrap on SQL Token boundaries (on user command)
593     * auto-complete table names in drop down list of table names
594     * Double click on tablename or field name adds to SQL text
595 tony 80
596     24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
597    
598     25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
599     TVariantArray. Seems to avoid memory corruption in Windows (probably a
600     workaround for a problem in fpc 3.0.4 win64).
601    
602     26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
603    
604 tony 83 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
605    
606 tony 51 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
607 tony 49
608 tony 51 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
609 tony 49 include remote system name.
610    
611     2. TIBExtract: No longer include comment header and COMMIT statement for empty
612     tables when data included in output.
613    
614     3. Profiling: IBSQL now has conditional compilation flags to enable query performance
615     and timing information to be written to stdout. This may be used to locate
616     performance bottlenecks.
617    
618     4. SQLParser: only call "OnChanging" event handler when value is different.
619    
620     5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
621    
622 tony 50 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
623     that BindFields is called when the query is next activated. Avoids FieldName
624     not found error.
625    
626 tony 80 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
627     purpose and allows the programmer to define any action they want for Update, Insert
628     or Delete. This may be complex SQL (similar to a Trigger), application specific
629     filtering of updates, or use of statements such as Grant or Revoke instead of
630     normal DML. See User Manual for more information.
631    
632 tony 47 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
633 tony 45
634 tony 47 1. TIBEvents: Fix uninitialised variable that could result in lost events.
635 tony 45
636 tony 47 2. TIBExtract: Added support for FB3 "USAGE" privilege.
637    
638     3. TIBExtract: data formatted as Charset set "octets" is now output using
639     hexadecimal notation.
640    
641     4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
642     using a simple XML format.
643    
644     5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
645     grants to these objects.
646    
647     6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
648     dependency problems restoring complex databases.
649    
650     7. TIBXScript: This component has been restructured to allow for the processing of
651     embedded XML in INSERT statements and to support interactive sources in addition
652     to non-interactive data sources such as files.
653    
654     8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
655    
656     9. TIBXScript: ISQL compatiable Set statements are now supported:
657     SET SQL DIALECT
658     SET TERM
659     SET AUTODDL
660     SET BAIL
661     SET ECHO
662     SET COUNT
663     SET STATS
664     SET NAMES <character set>
665    
666     10. IBVersion unit added to hold current IBX Version Number information.
667    
668     11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
669     and domain definitions.
670    
671     12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
672     fully supported.
673    
674     13. TIBExtract: when a database dump includes data, the generator values are now also set.
675    
676     14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
677    
678     IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
679    
680 tony 50 See also doc/IBX4LazarusGuide.pdf for important information on
681 tony 45 upgrading to IBX2.
682    
683     1. Size property of TIBStringField is now the width in characters of the field
684     and not the byte length. This applies only to multi-byte character sets such
685     as UTF8. The original approach aligned with TStringField. However, the TStringField
686     code is not recognised as a bug and hence this change to align the behaviour.
687     The TStringField change is expected in fpc 3.2.0.
688    
689     2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
690     true (default) then Size property value saved in the lfm is ignored. Size is
691     always set from the dynamic information read from the database. It is unclear
692     why anyone would want to override this and set Size to false.
693    
694     3. ibxscript: should now handle correctly a Case..End statement within a procedure
695     block.
696    
697     4. IBDatabase: new property - CreateIfNotExists. If true and database does not
698     exist when an attempt is made to connect to it (run time only) then an attempt
699     is made to create the database.
700    
701     5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
702     has been successfully created as a result of a call to CreateDatabase or when
703     creating a database after it was found not to exist.
704    
705     6. DBControlGrid: a race condition could result in the wrong row image being
706     written to the cache. This has been avoided by a trip round the message
707     loop before rendering the row image.
708    
709     7. DBControlGrid: It is strongly recommended not to open the source DataSet for
710     a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
711     known to risk corrupt rendering of row images when the control is first
712     displayed. If necessary use "Application.QueueAsyncCall" to delay opening
713     of the dataset (see DBControlGrid examples) until the Form's Window has been created.
714    
715     8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
716     a TDateEdit control located on an editor panel.
717    
718     9. TIBExtract: brought up-to-date plus many bug fixes.
719    
720     10. DBControlGrid: Removed memory leak when updating rows.
721    
722     11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
723    
724 tony 43 IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
725    
726     1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
727     when target codepage is CP_NONE. This is a workaround for
728     http://bugs.freepascal.org/view.php?id=30622.
729    
730     2. DBLog option removed from TIBStatisticalService - not supported by server
731     since Firebird 1.5.
732    
733     3. ibxscript: An error is no longer generated for "on commit preserve rows" or
734     similar.
735    
736     4. IBCodePage: updated mapping between codepages and character id.
737    
738     5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
739     Firebird. Character sets with a char width of two are not UTF16.
740    
741     6. Strings received from the database are now always transliterated into UTF8
742     regardless of the database character set or connection character set. This
743     is for compatibility with the LCL.
744    
745 tony 45 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
746 tony 41
747     1. IBBlob: Defer reading of blob until read method called. This avoids having to
748     read in an entire blob just to get the size of the blob. General performance
749     improvement when opening datasets containing blobs.
750    
751     2. Clearing a Blob now sets the corresponding field's modified flag.
752    
753     3. IBLookupCombo: When not performing auto-complete, original query sort order
754     is now used.
755    
756     4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
757     determined.
758    
759     5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
760    
761     6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
762     lazarus 1.6.0
763    
764     7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
765     compilation error.
766    
767 tony 39 IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
768    
769     1. No character set specified for connection: when a text blob is retrieved, the
770     character set is determined by looking up the native character set using then
771     Firebird API. Otherwise a text mode blob is assumed to have the same character
772     set as the connection.
773    
774     2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
775     for Login Dialog returing a change to the database path.
776    
777     3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
778     to be changed from that given in the TIBDatabase/TIBServer component and for the
779     entered value to be saved on a project specific basis (design time only).
780    
781     4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
782     column fieldname. If they are the same then it is acts as a look up for the KeyValue
783     Otherwise, it sets the column text to the selected ListField Value.
784    
785     5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
786     column width.
787    
788     6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
789     and a case insensitive search is requested.
790    
791     7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
792     or column ListSource.
793    
794     8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
795     unprepare) when closing and the text has not changed.
796    
797     9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
798     Less likely to cause a cursor re-use error on Windows.
799    
800     10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
801     Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
802    
803     11. TIBTreeView: Guard against nil destination on record changed
804    
805     12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
806     string type with the code page set to reflect the returned field encoding after
807     Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
808     earlier versions.
809    
810     13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
811     will now result in transliteration to the code page specified for the Firebird driver
812     if the assigned string has a different code page. FPC 3.0.0 onwards only.
813    
814     14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
815     is ignored and the lc_ctype value, when the database is opened, is set to align with
816     the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
817     platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
818     3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
819     the GETACP is used to determine the Windows code page.
820    
821     15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
822     name used as the lc_ctype when the database was opened. Only valid while the
823     Database is connected.
824    
825     16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
826     id that corresponds to the DefaultCharSetName.
827    
828 tony 37 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
829    
830     1. Unix: If Firebird Embedded Server shared object is loaded and a local database
831     path is given and database attach fails due to access permission issues on the
832     temp directory or security database, then the attach is retried with "localhost:"
833     prefixing the databasename. This should avoid problems when the database has to
834     be accessed by a local (e.g. classic) server and libfbembed is used.
835    
836     2. Windows: revised search order for Firebird DLL:
837     i. The Firebird Embedded Server in the application Directory.
838     ii. If the FIREBIRD environment variable is set then the directory this
839     points to is searched for the FB Client DLL and then then underlying
840     "bin" directory.
841     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
842     is used to locate the Firebird installation directory and the underlying
843     "bin" directory is searched for the FB Client DLL.
844     iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
845     are searched for the FB Client DLL.
846     v. The PATH Environment variable is used to search for the FB Client DLL.
847     vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
848    
849     3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
850     See doc/readme.scriptengine and example applications.
851    
852     4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
853     simplify the use of the embedded firebird server on both Linux and Windows platforms.
854     See dpc/readme.localdatabase and example applications.
855    
856     5. IBDynamicGrid: Reordering on column header click should now also work for
857     dynamic columns.
858    
859     6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
860     between incrementing/decrementing the lock count and signalling the event.
861    
862 tony 35 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
863    
864 tony 37 1.3.2 was never formally released and only made available as beta copies.
865    
866 tony 35 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
867    
868     2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
869    
870     3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
871    
872     4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
873     i.e. when it is a calculated field
874    
875     5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
876     This problem was due to a race condition between recalculating row heights and
877     determining which row was selected by the mouse click. The row height calculation
878     is now deferred by an extra trip round the message loop allowing the row to
879     be always calculated on the current grid layout rather than risking it being
880     calculated on the grid layout after the expanded row has been shrunk.
881    
882     6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
883     Windows.
884    
885     7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
886     These properties allow the (Firebird) character set name for the field and the max number of bytes per character
887 tony 37 to be determined at runtime. See doc/readme.charactersets.html.
888 tony 35
889     8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
890 tony 37 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
891 tony 35
892     9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
893     TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
894 tony 37 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
895 tony 35
896     Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
897     from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
898     implies no truncation.
899    
900     10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
901    
902     11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
903     (avoids "Not in Edit Mode" error).
904    
905     12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
906    
907     13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
908     DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
909    
910     14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
911    
912     15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
913    
914     16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
915    
916     17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
917    
918 tony 33 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
919 tony 31
920     1. OnCloseUp Event Handler added to TDBLookupProperties
921    
922     2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
923     problem with row size when exception is called.
924    
925     3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
926    
927     4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
928     in a TCustomComboBox and ignores return key if in a TCustomMemo
929    
930     5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
931     keyed in i.e. when autocomplete not performed
932    
933 tony 33 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
934     console mode applications with all LCL required functions (builtin dialogs and
935     cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
936     not included in your project, IBX should compile and link with a console mode program.
937     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
938     console mode application or the IDE will automatically assume that your
939     application is GUI based. Instead, you should include the ibexpressconsolemode package.
940 tony 31
941     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
942     to use the built in dialogs and cursor management. IBDialogs is
943 tony 33 included by default if "ibexpress" is in your project source's "uses" clause.
944 tony 31 This should be the case for all projects created through the IDE. This is why
945     you do not want to add the ibexpress package to console mode applications. The
946     ibexpressconsolemode package has been created to allow console mode programs
947     to avoid adding LCL dependencies when using IBX, while still having the
948     unit search paths set up correctly.
949    
950 tony 33 Existing users should check to ensure that the "ibexpress" unit is included in
951     each project's source file (*.lpr).
952    
953 tony 31 You may find that in order for the IDE to recognise that ibexpressconsolemode
954     exists, you have to first open the package in the IDE and then close it. This
955     adds it to the most recently accessed packages list. To make it permanently
956     available, add the package name to lazarus' staticpackages.inc file.
957    
958 tony 33 Thanks to Julio Jiménez for suggesting support of console mode.
959 tony 31
960     7. SQL Parser can now accept quoted strings that include new lines
961    
962     8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
963     of text on start of edit. This is particularly useful when tabbing to a
964     column and then inserting text.
965    
966     9. New Examples provided for IB Services and ISQLMonitor.
967    
968     10. Fix error when writing to blob streams that recorded only the last buffer
969     write in the blob stream. In most cases, this did not cause a problem as the
970     IB Blob Stream is written in a single write. However, with the TDBImage, write
971     of a graphic type prefix was lost which caused a problem when the image could
972     not be automatically recognised.
973    
974     11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
975 tony 33 already open" errors due to random numbers used for the cursor name being identical.
976 tony 31
977     12. IBTable: corrected error that could result in an "Index out of bounds" error
978     when opening the table and the Primary Key is the last or only column in the
979     table. Thanks to Rick Hoover for the fix.
980    
981 tony 33 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
982     of "UTF-8", and update list of available database character sets. Existing
983     users should check the current lc_ctype setting in their applications.
984 tony 29
985 tony 33 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
986    
987 tony 29 1. Firebird Services: avoid List Index error when opening a service with an
988     empty Params property.
989    
990     2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
991     Link now set up in Loaded method - avoids occasional failure to apply
992     SQL markup on initial open.
993    
994     3. "Employees" example performance improvements when scrolling.
995    
996     4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
997     TFrame. Force recaching of selected frame to avoid GTK race (results in a
998     random image cached).
999    
1000     5. DBControlGrid: Should now react to changes in panel height at run time.
1001    
1002     6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
1003     even when further rows exist.
1004    
1005     7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
1006     always be derived from panel height and setting this property can cause confusion.
1007     Note for existing projects: to avoid a missing property error at run time,
1008     each form using the DBControlGrid must be opened, updated and saved in the IDE
1009     in order to remove the property value from the lfm.
1010    
1011    
1012 tony 33 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
1013 tony 27
1014     1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
1015     call Prepare before setting parameter values.
1016    
1017     2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
1018    
1019     3. Code tidyup and more robust handling of dsql information result vector.
1020    
1021     4. Support for centralised handling of transaction status changes. TIBTransaction
1022     has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
1023     and "AfterExecQuery". The first three are called after the same event is called
1024     for an IBCustomDataSet descendent using the Transaction. The fourth is called
1025     after a call to TIBSQL.ExecQuery, again using this transaction. These new events
1026     enable monitoring of transaction status changes for a given transaction to be
1027     handled in a single place. For example, when a change to the dataset occurs
1028     an indicator can be set that shows the user that in order to save changes,
1029     the transaction should be committed. Rather than doing this per dataset, this
1030     can now be done per transaction.
1031    
1032     5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
1033     the dataset is scrolled. However, any changes to the current row are, by default,
1034     discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
1035     have a new property "DataSetCloseAction" that adds automatic posting of changes
1036     on dataset close. If this property is set to dcDiscardChanges (default) then the
1037     behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
1038     then IBX will attempt to post any unsaved changes before the dataset is closed
1039     (and after the BeforeClose event handler is called). The exception is when the
1040     dataset is being closed as a result of a transaction rollback. In this case,
1041     no action is taken and any unsaved changes are discarded. This avoids both
1042     unnecessary overhead and the risk that a validation error may occur in the Post
1043     raising an exception and thereby preventing a rollback.
1044    
1045     6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
1046     In earlier versions, the Display Width was set to the maximum byte width rather than the character
1047     width. Display Widths are now corrected by dividing by the max byte width per character.
1048     For UTF8 character sets, the byte width is four and hence the Display Width will be
1049     the byte width divided by 4. The byte width of each character set is determined
1050     dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
1051     system table. (see also http://bugs.freepascal.org/view.php?id=27766).
1052    
1053     7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
1054    
1055     8. IBLookupComboEditBox: List should now always be restored to full list when the
1056     control loses focus. Default Key press default interval reduced to 200ms.
1057    
1058     9. DBControlGrid: Ensure that selection is changed to newly appended row, even
1059     when dataset rows are less than visible rows.
1060    
1061     10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
1062     does not exist or DataSet is empty. More responsive on dataset open. New event
1063     OnRestorePosition. Column sort disabled if no header row.
1064    
1065     11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
1066     while dataset state is dsInsert. Avoids posting errors.
1067    
1068     12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
1069     avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
1070    
1071     13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
1072    
1073     14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
1074     to solve a specific problem. That is when the dataset cursor is moved (e.g. by
1075     a grid mouse click and the current row is being edited or inserted. In this case, TDataset
1076     always "posts" the current record regardless or whether or not it may be more appropriate
1077     to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
1078     "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
1079     as the first action of the "Post" method and allows the handler to convert the Post
1080     into a Cancel if that is the appropriate action on moving to a different row. This is
1081     achieved by returning with "CancelPost" argument set to true. Note that an exception could be
1082     raised here, but it may still be more appropriate to validate a post and signal
1083     a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
1084    
1085     15. On Unix derived systems, the Firebird library name can now be given as a colon
1086     separated list. Each library name on the list is tried in turn, in left to right
1087     order with the first found being used as the firebird library. By default, on Linux,
1088     the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
1089     overidden by the FBLIB environment variable or the OnGetLibraryName function.
1090    
1091     Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
1092     then it will still attempt to access the database via the Firebird Server and will
1093     require a username and password. If only the pathname is given, then the username
1094     and password should be omitted and the unix file permissions are used to grant
1095     access.
1096    
1097 tony 33 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
1098 tony 23
1099     1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
1100     rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
1101     that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
1102 tony 27 corresponds to a row of the linked DataSource. Any data aware control on the
1103 tony 23 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
1104    
1105     2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
1106 tony 25 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
1107 tony 23 takes place during database access. This may be useful when there are performance issues with
1108     the change of cursor. Setting the property to false suppresses the change of cursor.
1109    
1110     3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
1111     and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
1112     Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
1113     making all changes permanent immediately rather than when the transaction is explicitly
1114     committed.
1115    
1116 tony 25 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
1117 tony 27 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
1118 tony 23
1119 tony 33 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
1120 tony 25
1121     Development version only.
1122    
1123 tony 33 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
1124 tony 21
1125     1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
1126     This is typically used during an "OnBeforeOpen" event handler to manipulate the
1127     "Where" and "Having" clauses to implement user specified filters of arbitrary
1128     complexity.
1129    
1130     2. A new Component Palette entry "Firebird Data Controls" is now available. This has
1131     three new data aware controls dependent on IBX and which make use of the SQL Parser.
1132     These are:
1133    
1134     - TIBLookupComboEditBox
1135     - TIBDynamicGrid
1136     - TIBTreeview
1137    
1138     TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
1139     of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
1140     to revise the available list and restrict it to items that are prefixed by the
1141 tony 25 typed text (either case sensitive or case insensitive). Autoinsert allows a
1142 tony 21 newly typed entry to be added to the list dataset and included in the available
1143     list items.
1144    
1145     TIBDynamicGrid is a TDBGrid descendent that provides for:
1146     - automatic resizing of selected columns to fill the available row length
1147     - automatic positioning and sizing of a "totals" control, typically at the
1148     column footer, on a per column basis.
1149     - DataSet resorting on header row click, sorting the dataset by the selected column.
1150     A second click on the same header cell reversed the sort order.
1151     - Support for a "Panel Editor". That is on clicking the indicator column, the row
1152     is automatically expanded and a panel superimposed on it. The panel can have any
1153     number of child controls, typically data aware controls with the same datasource
1154     as the grid allowing for editing of additional fields and more complex editors.
1155     - Reselection of the same row following resorting.
1156     - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
1157     Its properties are specified on a per column basis and allows for one or more
1158     columns to have their values selected from a list provided by a dataset.
1159     Autocomplete and autoinsert are also available. The existing picklist editor
1160     is unaffected by the extension.
1161    
1162     TIBTreeView is a data aware TCustomTreeView.
1163    
1164     3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
1165     zero scale will no longer return an error. An Int64 will be returned instead.
1166    
1167     4. TIBTransaction now has events for Before and After Transaction End and a new function
1168     "GetEndAction" allowing the EndAction to be accessed by these event handlers.
1169    
1170     5. TIBQuery can now handle correctly queries which contain the same keyword parameter
1171     repeated multiple times.
1172    
1173     6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
1174     check used to get in the way of using Stored Procedures, and "Update or Insert"
1175     statements.
1176    
1177     7. Insert, Modify and Delete property Editors now support Query Generation from
1178     Stored Procedures.
1179    
1180     8. Three new examples illustrate the use of the new IB Controls
1181    
1182    
1183 tony 33 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
1184 tony 19
1185     1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
1186     setting performance. See "readme.field+param.names in the doc folder.(Thanks to
1187     Gabor Boros for reporting this problem and for testing the improvements).
1188    
1189     2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
1190     See readme.field+param.names in the doc folder.
1191    
1192     3. IBX SQL Editors will now automatically add double quotes around column names when the database
1193     dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
1194    
1195     4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
1196    
1197     5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
1198     actions.
1199    
1200     6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
1201     thanks to Yuriy Kopnin for pointing this out).
1202    
1203     7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
1204    
1205     8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
1206     for both fields and parameter setting.
1207    
1208     9. Changes to the Select SQL in an IBCustomDataset descendent should now be
1209     visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
1210    
1211     10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
1212     when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
1213    
1214     11. TIBTable now has a property editor for "MasterFields"
1215    
1216     12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
1217     GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
1218    
1219     13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
1220     of settings is unrecognised. Selecting this radio button has no effect on the settings.
1221    
1222    
1223 tony 17 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
1224    
1225     1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
1226    
1227 tony 15 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
1228    
1229     1. In a TIBCustomDataset descendent, a generator now only sets the value when
1230     it is null. This allows for alternative user defined setting of the generator
1231    
1232     Many thanks to Julio Jiménez for this fix
1233    
1234     2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
1235     and suggests that the user may have forgotten to install it.
1236    
1237 tony 13 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
1238    
1239     1. Conditional compilation used to limit registration of TIntegerField to
1240     Lazarus versions less than 1.1
1241    
1242     2. When a database connection is created, character set is now by default set
1243     to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
1244     1250 to 1254.
1245    
1246    
1247 tony 11 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
1248    
1249     1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
1250    
1251    
1252 tony 9 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
1253 tony 7
1254     1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
1255     Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
1256    
1257     2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
1258     package is changed to do this (which it should do).
1259    
1260     IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
1261    
1262     1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
1263    
1264     2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
1265    
1266     3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
1267    
1268     4. Property editors should now correctly resize.
1269    
1270     5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
1271     (restored original functionality)
1272    
1273     6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
1274     library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.