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Revision: 309
Committed: Tue Jul 21 08:00:42 2020 UTC (2 weeks ago) by tony
File size: 68167 byte(s)
Log Message:
Fixes Merged
Line User Rev File contents
1 tony 309 IBX Change Log version (2.3-5 Build 12234) Sat, 18 Jul 2020 11:13:30 +0100
2 tony 308
3     1. TIBStringField: when a string value is read from a dataset buffer, if the
4     number of UTF8 characters exceeds the string size then string is truncated
5     to the maximum string size. This is usually a problem with fixed width columns
6     right padded with white space.
8     2. SQLFiltered and SQLFilterParams added to TIBQuery, TIBTable and TIBDataset.
9     If SQLFiltered is set then when a dataset is opened, each line in the
10     SQLFilterParams property is assumed to be a SQL condition clause and
11     ANDed into the Where clause of the SQL Select statement provided as a
12     dataset property. Each such SQL condition thus acts as an additional filter
13     on the dataset. (Not yet tested)
15     3. The Filtered property inherited from TDataset is no longer used for SQL (server
16     side filters).
18 tony 307 IBX Change Log version (2.3-4 Build 12041) Fri, 17 Apr 2020 14:00:32 +0100
19 tony 306
20 tony 307 1. TIBXDataSet and Generators: Generator Names that are not all upper case or
21     not SQL Identifiers are now supported.
22 tony 306
23 tony 307 2. TIBXScript: Set Generator is no longer rejected as unrecognised SQL and is
24     passed to the Firebird engine for execution.
25 tony 306
26 tony 307 3. TIBDataSet: Unidirectional datasets now give an error message if an attempt
27     is made to scroll back.
28 tony 306
29 tony 307 4. New unit: IBMessages.pas. Contains only messages used by IBX and not FBIntf
30 tony 306
31 tony 307 5. TIBLookupComboEditBox: When generating auto-complete SQL, the ListField is now
32     only enclosed in double quotes in SQL dialect 3 and when it needs to be.
33 tony 306
34 tony 307 6. TIBLookupComboEditBox: when the list source opens, the ListField name is now
35     validated. If no match is found in the list of field names and the database has
36     been opened in SQL Dialect 3, then the ListField Name is converted to upper case
37     if it then matches a field name. Otherwise, a Listfield not valid exception occurs.
38 tony 306
39 tony 307 7. IBGeneratoreditor.pas: Add missing parenthesis around "IS" statement for compliance
40     with fpc 3.2.
41 tony 306
42 tony 307 IBX Change Log version (2.3-3 Build 11512) Fri, 28 Dec 2018 10:04:17 +0000
43 tony 287
45 tony 307 1. New property for TIBDatabase and TIBXServicesConnection. This is "ConfigOverrides"
46     and is used to override the default settings in the client side "firebird.conf" This
47     includes "WireCompression" and "WireCrypt". The value of this property is a "TStrings".
48     Each line of the string list should be a setting in the same format as "firebird.conf".
49     For example "WireCompression = true" in order to request wire compression on the client side.
50 tony 287
51 tony 307 Note: explicit settings in the client side "firebird.conf" appear to take precedence
52     over settings given in TIBDatabase and TIBXServicesConnection. Many client side settings
53     also require a compatible setting in the server side "firebird.conf". For example
54     "WireCompression = true" must also be set in the server's "firebird.conf" for wire
55     compression to be used.
56 tony 291
57 tony 307 Whether or not WireCompression or WireCrypt are in use can be checked using the information
58     returned with the Client/Server protocol version. See ibx/examples/dbadmin and
59     ibx/examples/dbinfo for examples of how to display this information.
60 tony 291
61 tony 307 2. New property for TIBDatabase and TIBXServicesConnection: "WireCompression". This
62     is a "convenience" property. If set the "WireCompression=true" is added to the
63     ConfigOverrides. If unchecked then this setting is removed.
64 tony 291
65 tony 307 3. TIBExtract: 64-bit integer types are now correctly extracted as "BIGINT" and
66     not "INT64".
67 tony 291
68 tony 307 4. New published properties for TIBCSVDataOut, TIBInsertStmtsOut and TIBBlockFormatOut
69     These are:
70     property TimestampFormat: string;
71     property DateFormat: string;
72     property TimeFormat: string;
73 tony 291
74 tony 307 Respectively, these provide the date time format templates for SQL types: TIMESTAMP,
75     DATETIME and TIME. The format strings use the standard FPC date/time format
76     characters (see
77 tony 266
78 tony 307 If any of the above properties are set to an empty string, then the locale default
79     is used. This uses the ShortDateFormat and the LongTimeFormat. In timestamp, the
80     locale default is extended by appending '.zzz' to include milliseconds.
81 tony 272
82 tony 307 TIBCSVDataOut by default sets these properties to the empty string, while the other
83     two use: ' hh:nn:ss.zzz', '' and 'hh:nn:ss.zzz' respectively.
84 tony 266
85 tony 307 5. New published property for TIBCSVDataOut:
86     property QuoteStrings: boolean (default true)
87 tony 266
88 tony 307 If false then strings are unquoted, otherwise, the QuoteChar property value is
89     used to delimit each and every string in the output.
90 tony 263
91 tony 307 6. New published properties for TIBCSVDataOut:
92     property FieldSeparator: string;
93     property HeaderSeparator: string;
94 tony 267
95 tony 307 Respectively, these provide the separator character(s) used to separate fields
96     in data and header rows. Both default to ','.
97 tony 270
98 tony 307 7. New published properties for TIBCSVDataOut and TIBBlockFormatOut:
99     TOnFormatTextString = procedure(sender: TObject; var TextString: string) of object;
100     property OnFormatTextString;
101 tony 270
102 tony 307 This event handler can be used to process text strings before they are included
103     in the output e.g. to replace unprintable characters with alternative strings.
104     This only applies to columns with an SQL Type of SQL_VARYING and SQL_TEXT.
105 tony 270
106 tony 307 8. TIBDataSet now raises an exception when ParamByName called with an invalid parameter name.
107     Uses "FindParam" if in order to find out if a parameter with a given name exists
108     and without raising and exception if it does not.
109 tony 270
110 tony 307 9. TIBQuery now uses IBX SQL Parser instead of the TParams SQL parser in order to ensure
111     consistency with SQL queries.
112 tony 270
113 tony 307 10. CaseSensitiveParameterNames property added to TIBSQL, TIBDataSet and TIBQuery.
114     When true, SQL statement parameter names are parsed case sensitive. Note for
115     TIBDataSet only applies to Select query.
116 tony 270
117 tony 307 11. IBEvents: removing a TIBEvent component from a form should no longer result in
118     an IDE exception.
119 tony 270
120 tony 307 12. LocalDBSupport: initial database creation should now work correctly
121     when the schema source is an sql file.
122 tony 270
123 tony 307 13. TIBCMLocalDBSupport: new event handler "property OnProgressEvent: TOnProgressEvent"
124     when defined, this handler will be called by the internal TIBXScript during
125     initial database creation when the schema source is an sql file and may be used
126     to provide a visual indication of progress in console mode.
127 tony 270
128 tony 307 14. TCustomIBLocalDBSupport: new public property "InOnCreateDB: boolean". This is set
129     to true while a new local database is being created and its schema populated.
130     Useful in (e.g.) TIBDatabase.OnAfterConnect handler to suppress actions
131     when the database is disconnected/connected during the create DB procedure.
132 tony 270
133 tony 307 15. TIBXScript: any User/password parameters found in a CREATE DATABASE statement
134     are now always ignored and replaced by the user name and password provided as
135     the login parameters for the TIBDatabase referenced from the TIBXScript. The
136     IgnoreCreateDatabase property still applies and the CREATE DATABASE statement is
137     completely ignored if this property is true.
138 tony 270
139 tony 307 16. Code tidyup in IBTreeView: Node properties initialisation moved from TIBTreeView.AddNodes
140     to TIBTreeView.Added. An OnAddition event handler is no longer needed to initialise
141     ImageIndex and SelectImageIndex values on AddNode.
142 tony 270
143 tony 307 17. TIBDatabase.Attachment and TIBXServicesConnection.ServicesIntf properties are now
144     read/write. This should enabled (e.g.) multiple instances of TIBDatabase to share
145     the same database connection.
146 tony 270
147 tony 307 18. TIBDataSet and TIBQuery now support the TDataSet "Filter" property.
148     if provided, this should be an conditional SQL expression suitable for
149     including in an SQL Select statement "where" clause. If non-empty and the
150     "Filtered" property is true then the SQL expression provided as the value of
151     the "Filter" property is "ANDed" with any existing condition statement
152     in the SQL statement's "Where" clause.
153 tony 270
154 tony 307 If the "Filter" property is set at run time, the "Filtered" property is true
155     and the dataset is already open, then the dataset is closed and re-opened automatically.
156 tony 271
157 tony 307 The "Filter" condition may include IBX style parameters. In which case, their
158     value must be set by the dataset's "OnBeforeOpen" event handler.
159 tony 272
160 tony 307 This is a public property for TIBDataSet and TIBQuery query and intended for
161     use at run time.
162 tony 272
163 tony 307 Note: The property is a published property of TIBTable. The TIBTable functionality
164     is unaffected by this change.
165 tony 272
166 tony 307 IBX Change Log version (2.3-2) Wed, 05 Dec 2018 12:19:23 +0000
167 tony 272
168 tony 307 1. Remove need to check for IsMultiThread by providing access to GUI timers via
169     IBGUIInterface. Note: master/detail delay timer does not apply to console
170     mode apps.
171 tony 272
172 tony 307 2. TIBCustomDataSet: SQLParser ignored if it does not contain a valid select
173     statement. This avoids problems if "Execute Block" is used as the Query.
174 tony 272
175 tony 307 3. IBSQLParser now uses the common SQL tokeniser from fbintf. This replaces the
176     internal SQL tokeniser routines.
177 tony 272
178 tony 307 4. IBSQLParser: new property NotaSelectStmt. Set to true if SQL fails to parse
179     as a select statement, with or without CTEs.
180 tony 272
181 tony 307 5. IBSQLParser: parser now recognises the "ROWS" clause.
182 tony 272
183 tony 307 6. TIBXScript now uses the common SQL tokeniser from fbintf. This replaces the
184     internal SQL tokeniser routines.
185 tony 272
186 tony 307 7. Fix error in TIBXScript processing of "set" statements. This avoids exceptions
187     being raised for valid set statements processed by a data formatter.
188 tony 272
189 tony 307 8. New published property for TIBDatabase and TIBXServicesConnection. This is
190     FirebirdLibraryPathName: string. If not empty it is used to explicitly specify
191     the path of the Firebird Library used by the database/services connection.
192 tony 267
193 tony 307 9. New read only public property for TIBDatabase and TIBXServicesConnection. This
194     is FirebirdAPI and returns the IFirebirdAPI interface used by the database/
195     services connection.
196 tony 263
197 tony 307 10.SQL Property editors now quote parameter names if "Quote identifier" is selected
198     or param name is not a valid SQL identifier.
199 tony 263
200 tony 307 11. IBLookupComboEditBox: In Lazarus 2.0, TDBLookupComboBox takes a more restrictive
201     view of whether the text box should be editable when no DataSource is specified.
202     TIBLookupComboEditBox has been updated to workaround this problem. As long as
203     ReadOnly is false, the text box is editable when no DataSource is specified.
204 tony 263
205 tony 307 12. AllowUseOfFBLIB is now set to "true" at design time. This is to allow use of
206     the FBLIB environment variable. If you do not want to permit this then you
207     must modify the Register procedure in the design/IBDBReg.pas unit to remove
208     this setting.
209 tony 263
210 tony 307 IBX Change Log version (2.3-1) Thu, 25 Oct 2018 14:39:45 +0100
211 tony 263
212 tony 307 1. IBCustomDataset: replace deprecated function ValidUTF8String with call to
213     Utf8EscapeControlChars
214 tony 263
215 tony 307 IBX Change Log version (2.3-0) Mon, 16 Apr 2018 09:48:06 +0100
216 tony 263
217 tony 307 IMPORTANT: the source code tree has been re-organised for IBX 2.3. Please remove
218     all previous copies of the IBX source code tree before installing this release.
219 tony 263
220 tony 307 The IBX packages used by most users have not changed, with one exception. The
221     IBServices unit has been moved to the package iblegacyServices.lpk. To continue
222     to use the IBServices unit in your applications, please add the iblegacyServices
223     to the list of dependencies. To do this, open the Project Inspector and select
224     Add->New Requirement and select "ibLegacyServices" from the list of available
225     packages.
226 tony 263
227 tony 307 1. New unit IBXServices. The IBXServices unit is a re-architectured update of
228     the IBServices unit providing what is intended to be a clearer and easier to
229     use set of IB Services components. See Chapter 10 of the IBX User Guide for
230     more information and the guide to "Firebird Service Management Using IBX".
231     As indicated above, the legacy services components are still available and
232     provided in a separate package. There is no need to update working applications
233     using the older versions except for an additional package dependency.
234 tony 263
235 tony 307 2. The IBX packages and source code tree have been re-organised in an attempt to
236     finally get rid of the "duplicate ppu" warnings. This re-organisation should
237     not affect existing users. Section 2.3 of the IBX User Guide describes the
238     new set of IBX packages.
239 tony 263
240 tony 307 3. The ibx/examples/DBAdmin and the ibx/examples/services example have been
241     updated to use the new Services API components.
242 tony 263
243 tony 307 4. The iblocal package has been updated to use the new Services API components.
244 tony 241
245 tony 307 5. procedure SetAutoAdmin; in the new IBX Services this method is now a member of
246     TIBXSecurityService. It had been wrongly classified in the previous version
247     as a per database configuration item. It is global to a server and hence
248     correctly positioned as part of the Security Package. In the DBAdmin example,
249     the setting has moved to the mappings page.
250 tony 241
251 tony 307 6. TIBXScript: IgnoreCreateDatabase added. If true then CREATE DATABASE statements
252     are ignored.
253 tony 101
254 tony 307 7. TIBDatabase: DropDatabase now ensures that all transactions have been properly
255     closed before the database is dropped. Before and After Disconnect event handlers
256     are also fired.
257 tony 209
258 tony 307 8. TIBTransaction: OnStartTransaction event now fires every time the transaction
259     is started and not just the first time.
260 tony 209
261 tony 307 9. IBDataOutput: Use FormatFloat for all performance statistics to avoid platform
262     depenendency with comp type.
263 tony 209
264 tony 307 10. IBDataOutput: select query data output is now sent to stdout instead of stderr.
265 tony 209
266 tony 307 11. TIBDatabase: Remove regression. If a user login dialog changes the DatabaseName
267     then this is recognised and not ignored.
268 tony 209
269 tony 307 12. TIBDataSet, TIBQuery, TIBTable: additions:
270     function GetRowsAffected(var SelectCount, InsertCount, UpdateCount, DeleteCount: integer): boolean;
271     function GetPerfStatistics(var stats: TPerfCounters): boolean;
272     property EnableStatistics: boolean read FEnableStatistics write SetEnableStatistics;
273 tony 209
274 tony 307 GetRowsAffected returns the affected row counts from the last insert/update/delete
275     if EnableStatistics = true then GetPerfStatistics returns the current stats
276     counters for the select query. Note: stats accumulate after each fetch from
277     the database. To get total query cost after open, call the "Last" method
278     and then GetPerfStatistics.
279 tony 209
280 tony 307 See ibx/examples/consolemode for an example of the use of GetPerfStatistics
281 tony 209
282 tony 307 13. TIBExtract: Identity columns DDL. "Start with clause" now correctly encapsulated
283     in parenthesises.
284 tony 209
285 tony 307 14. TIBExtract: new published property "AlwaysQuoteIdentifiers". If true then in dialect 3
286     SQL identifiers are always delimited by double quotes. If false, then they are
287     only delimited if the identifier is a reserved word, contains lower case or special
288     characters. Set this property to true to retain previous behaviour.
289 tony 209
290 tony 307 15. Insert SQL Property Editor. In Insert Returning Clause, Identity column names
291     are now inserted in double quotes if not Reserved Words or valid SQL Identifiers.
292 tony 209
293 tony 307 16. TIBDataSet, TIBQuery, TIBTable: addition:
294     property MasterDetailDelay: integer {defaults to zero}
295 tony 209
296 tony 307 When non-zero and the dataset is a detail table referencing a master table
297     through either a MasterSource (TIBTable) or a DataSource (TIBDataSet, TIBQuery)
298     then a synchronisation delay is added (in milliseconds) between the master
299     row changing and the detail dataset being re-opened. If the master dataset
300     is scrolled before the delay expires then the delay is reset. This can be used
301     to avoid performance overheads when scrolling through a large master dataset.
302 tony 209
303 tony 307 Note: uses fptimer and hence requires a thread manager. Under Linux the
304     chreads unit must be included in your project. TTimer is not used in order
305     to avoid an LCL dependency. Requires FPC 3.0.2 or later.
306 tony 209
307 tony 307 17. TIBExtract: User role grants now excluded when etGrantsToUser not specified
308     with Extract Option eoDatabase.
309 tony 209
310 tony 307 18. TIBLookupComboEditBox: Workaround added for
311     When a deLayoutChanged event is reported on the ListSource dataset, the
312     combobox text is updated. This allows a listsource (detail) to be in a Master/Detail
313     relationship with the control's datasource (master).
314 tony 209
315 tony 307 19. TIBExtract: Full BigInt value range now supported for Generators/Sequences.
316 tony 209
317 tony 307 20. TIBExtract: Select Procedures (Procedure type 1) now include "SUSPEND;" clause in their
318     stubs. Pedantic fix really, as procedures output in dependency order anyway.
319 tony 209
320 tony 307 21. TIBExtract: Package Headers and Package Bodies are now included in the extracted
321     DDL (Firebird 3 and later only).
322 tony 209
323 tony 307 22. TIBLookupComboBox Autocomplete Fixes:
324     i. Only appended text is now selected after autocomplete.
325     ii. Uppercase keys no longer ignored for autocomplete.
326     iii. Retain Prefix case is now honoured correctly.
327     iv. When a DataSource is assigned, typing after autocomplete now extends prefix
328     before autocomplete performed. i.e. behaviour now the same as when
329     no DataSource assigned.
330 tony 209
331 tony 307 23. TIBXScript: Single Line Comments starting with '--' are now ignored when occurring
332     between SQL statements.
333 tony 209
334 tony 307 24. TIBExtract: New published property CaseSensitiveObjectNames. If false (default) then
335     ObjectNames are converted to upper case before matching against metadata object
336     names, unless the objectname is delimited by double quotes, in which case, the
337     double quotes are removed and the remaining string is used (unmodified) to match
338     against the metadata object name.
339 tony 209
340 tony 307 If true then the ObjectName is used as is without modification and matched
341     against the metadata object name. No attempt is made to remove double quotes.
342 tony 209
343 tony 307 25. TIBExtract: New Extract Types: etDatabaseTriggers and etDDLTriggers. When used
344     with eoTrigger, these extract types can be used to select only Database Triggers,
345     or DDL Triggers or both. Ignored when etTable or etTrigger included in Extract Types.
346 tony 209
347 tony 307 26. TIBXScript: If an exception occurs during the processing of a statement, the
348     statement separate character is now reset to the default (';').
349 tony 221
350 tony 307 27. TIBDatabase: Reconnect method added and used by TIBXScript for reconnect.
351 tony 221
352 tony 307 28. TIBXScript: Transaction is no longer automatically reactivated immediately processing
353     a commit or reconnect statement and instead activated only when next SQL statement
354     is executed.
355 tony 221
356 tony 307 29. TIBSQL.HasField should no longer generate and exception when the field does not exist.
357 tony 225
358 tony 307 30. TIBXScript: case insensitive regex now used when matching statements instead of
359     converting statement to upper case.
360 tony 225
361 tony 307 31. TIBExtract: metadata comments now supported. New published property
362     IncludeMetaDataComments (default true). If true then metadata comments included
363     in extracted DDL. New Extract Object member eoComments. This may be used with
364     ExtractObject method to list all metadata comments.
365 tony 225
366 tony 307 32. TIBExtract: ListObjectNames method added.
367 tony 225
368 tony 307 33. Updated Database component editor to support additional connection string
369     types.
370 tony 226
371 tony 307 IBX Change Log version (2.2-0) Wed, 28 Feb 2018 10:57:45 +0000
372 tony 227
375     RELEASE.
376 tony 229
378 tony 229
379 tony 307 1. IBExtract: Identity columns - add additional check for null column for generator name.
380 tony 229
381 tony 307 2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
382     The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
383     information). However, this is also a very useful mechanism for returning updated computed by
384     column values. Values returned as a result of executing an Insert or Update statement
385     replace existing values in the current row for each corresponding column.
386 tony 229
387 tony 307 Previously, if a dataset's select query included read only (computed by) fields then
388     an automatic row refresh was performed after an insert or update query had been processed,
389     irrespective of the setting of the "ForcedUpdates" property. This has changed such
390     that an automatic refresh is no longer performed if an insert or update query contains
391     a returning clause that updates one or more fields on the current row. A full row
392     refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
393     field values and the select query contains read only fields. Use of Insert/update
394     returning should be significantly more efficient than executing a refresh query.
395 tony 229
396 tony 307 This behaviour change is intended to be backwards compatible and there should be no need to change
397     existing programs, other than to improve performance by using the new capability.
398 tony 229
399 tony 307 3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
400     they are called when the dataset row is being deleted, there is no value in
401     updating the current record from the query result. Instead, a new event handler
402     "OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
403     an OnDeleteReturning event handler is provided then it is called with the IResults returned
404     by the query. The event handler can then interrogate the query results and
405     perform whatever action is necessary. For example to confirm, to the user,
406     the deletion of a row with the returned values.
407 tony 231
408 tony 307 4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
409     any Computed By or Identity Columns. The IBTables example has been updated to
410     illustrate the computation of the employee Full Name on update.
411 tony 209
412 tony 307 5. TIBTable: The GeneratorField property is now published.
413 tony 151
414 tony 307 6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
415     When InsertSQL is generated, the Identity columns are not included in the list of values to
416     be inserted. A RETURNING clause is added to the insert statement to return the value of
417     each Identity column after the insert is executed.
418 tony 151
419 tony 307 7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
420     Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
421     Insert..Returning clause.
422 tony 101
423 tony 307 8. TIBGenerator: small performance improvement by not preparing query each time
424     a new value is generated.
425 tony 101
426 tony 307 9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
428     10. Property editors will now sync table name to a System Table when "Include System
429     Tables" is selected and the query is for a System Table.
431     11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
432     values are no longer converted to milliseconds from TDateTime and then back again
433     to TDateTime (the conversion to milliseconds is the default TDataset approach).
435     12. Property Editors handling of Stored Procedures.
436     * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
437     which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
438     query).
439     * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
441     13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
442     can be used to select a package. If non-empty, the stored procedure name is
443     expected to be a stored procedure defined in the specified package and the
444     generated SQL will be as required for a stored procedure located in a package.
446     14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
447     a "Package Name" drop down box to allow selection of a Firebird 3 Package from
448     which a stored procedure can be selected. With no package name selected, non-package
449     stored procedures are listed.
451     15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
452     for password on reconnect.
454     16. TIBDatabase: use IAttachment for connection default character set id, code page
455     and character set name.
457     17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
458     DB info lookups"
460     18. IBExtract: now supports DDL Triggers and Grants to DDL objects.
462     19. Add a property Editor for TIBUpdate.RefreshSQL.
464     20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
465     parameters. This stops an exception being raised when the field cannot be
466     located in the record buffer.
468     21. Property Editors now automatically include System Tables when opened and when the query table
469     is a System Table.
471     22. IBServices: SQRB and SRB buffers are now reset when service query throws an exception.
472     This avoids errors due to a stale SQRB or SRB being used for the next query.
474     23. IBServices: Service attach parameters now include "expected_db". This is used to
475     add the SPB item isc_spb_expected_db. This names a database using
476     an alternative Security Database (FB3 onwards) and allows (e.g. backup/restore) using such a
477     database. examples/services re-written to illustrate use of "expected_db".
479     24. IBServices: TIBControlAndQueryService.WriteNextChunk no longer ignores isc_info_svc_timeout.
480     This avoids truncated backups when the server returns a timeout (busy) response.
482     25. TIBDatabase: isc_dpb_page_size now supported as a database parameter when using TIBDatabase.CreateDatabase.
484     26. TIBDatabase: DatabaseName property may now be prefixed by $TEMP$ or $DATADIR$ for local
485     databasenames. These are respectively expanded to the local system's temp directory
486     (including trailing delimiter) or to a prescribed data directory (including
487     trailing delimiter). Under Unix systems the data directory is a hidden directory
488     in the user's home directory. The hidden directory name is either the string returned
489     from the SysUtils "Vendor Name" or "IBX" if empty. In either case prefixed by a '.'.
490     Under Windows, the directory is the same as the Data Directory as decribed
491     above but instead prefixed by the User's application data path. These may be
492     used to improve application portability for Personal Databases.
494     27. TIBTable: FieldDefs property is no longer published. Due to the use of TIBFieldDef
495     this has not worked for a long time and is not useful either. FieldDefs should be
496     managed using the Fields Editor as with any other dataset. To access the fields
497     editor for a TIBTable component, double click on the component. The fields editor
498     is then displayed.
500     28. TIBDatabaseInfo: new properties/function
501     * DateDBCreated (returns date/time database created)
502     * TransactionCount (returns no. of active transactions)
503     * GetDatabasePage(PageNo: integer) (returns contents of specified database page - SYSDBA only).
504     * PagesFree (Firebird 3 or later)
505     * PagesUsed (Firebird 3 or later)
506     * Encrypted (returns true if database encrypted. (Firebird 3.0.3 or later only)
507     * EncryptionKeyName (returns the name of the encryption key if any (Firebird 3.0.3 or later only)
509     29. IBServices classes now provided the decoded release number in the (array) property ServerVersionNo.
511     30. TIBSecurityService now supports display/modification of the User Admin Role (Firebird 2.5 and later).
513     31. TIBConfigService now has a procedure SetAutoAdmin(Value: boolean) to enable/disable
514     the automtic mapping of privileged OS users to the RDB$ADMIN role (Firebird 2.5 and later).
516     32. TIBBackupService: New Option - NoDBTriggers equivalent to -nodbtriggers switch introduced
517     in the gbak utility at V.2.1 to prevent database-level and transaction-level triggers from
518     firing during backup and restore.
520     33. Both TIBBackupService and TIBRestoreService now support backup/restore statistics options
521     for verbose output using the new property "StatisticsRequested".
522     see
524     34. TIBRestoreService: now supports new options RestoreMetaDataOnly (Firebird 2.5 and later).
526     35. TIBOnlineValidationService component added to the IBServices and the "Firebird Admin"
527     palette. This uses the online validation feature added in Firebird 2.5. The
528     services's properties enable inclusion/exclusion of tables and indexes using
529     regular expressions. See.
532     36. IBServices: procedure TIBConfigService.SetNoLinger added to set no linger
533     option on a database.
535     37. TIBCustomService: Assign method implemented to allow copying of service login
536     context between service API components. "Detach" method now only detaches
537     service when last reference to the service interface detaches. Tidy up of
538     code for SetActive and Attach methods including password hiding.
540     38. TIBDatabase: new properties: AuthenticationMethod and RemoteProtocol. Read only
541     and used to determine the auth method and protocol used for the connection.
543     39. TIBDatabase: ensure that SQLDialect setting is used when creating a database using
544     a Create Database Statement generated by IBX.
546     40. All IBServices now have an additional published property "PortNo". This may
547     be set to a non-standard port number when necessary. If zero then the default
548     port number is used.
550     41: TIBLookupComboeditBox: Ensure dataset updated when change selected with the keyboard
551     and not just the mouse.
553     42. TIBCustomDataset: reopen query if already active when a TIBControlLink is added.
555     43. TIBTreeview: new ImageIndexField and SelectedIndexField Property allows the
556     image index and selected image index for each node to be set from a database field.
558     44. TIBExtract: new extract type (etGrantsToUser) for use with eoDatabase. If included
559     then database schema includes grants to all users. If not present then the
560     only user grants included are those to User PUBLIC.
562     45. TIBTreeView: performance improvement. When expanding include both expanded node
563     and child nodes in dataset.
566     IBX Change Log version (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
568     1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
569     changes.
571     2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
572     Bug could result in truncated multi-byte character set values.
574     3. Changes consequential on moving fbintf character set utility functions from
575     IFirebirdAPI to IAttachment.
577     4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
579     5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
580     results in autocomplete ignoring prefix text.
582     6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
583     entering a new name into the text box.
585     7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
586     Firebird rather than recomputing it.
588     8. Property Editor positioning tidy up: All IBX Property editors should now be
589     screen centre. Previously some were "poDesigned" which may be inappropriate
590     for multi monitor desktops.
592     10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
594     11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
595     a transaction and always reset the object.
597     12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
599     13. TIBXScript: Allow for override of database filename in Create Database statements.
601     14. IBLocaldb: Support initialisation of the database from an SQL script in addition
602     to a gbak format archive.
604     15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
606     16. IBLocaldb: Drop database if error creating an empty database.
608     17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
609     unless selected node not in current dataset.
611     18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
612     to TIBCustomService, and IBlocalDB code tidy up.
614     19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
615     behaviour due to uninitialised variable.
617     20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
618     integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
620     21. IBSQL: When Database changed ensure that all resources are freed.
622     22. IBCustomDataset: When database changed ensure that queries an unprepared.
624     23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
625     * Line Wrap on SQL Token boundaries (on user command)
626     * auto-complete table names in drop down list of table names
627     * Double click on tablename or field name adds to SQL text
629     24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
631     25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
632     TVariantArray. Seems to avoid memory corruption in Windows (probably a
633     workaround for a problem in fpc 3.0.4 win64).
635     26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
637     27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
639     IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
641     1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
642     include remote system name.
644     2. TIBExtract: No longer include comment header and COMMIT statement for empty
645     tables when data included in output.
647     3. Profiling: IBSQL now has conditional compilation flags to enable query performance
648     and timing information to be written to stdout. This may be used to locate
649     performance bottlenecks.
651     4. SQLParser: only call "OnChanging" event handler when value is different.
653     5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
655     6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
656     that BindFields is called when the query is next activated. Avoids FieldName
657     not found error.
659     7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
660     purpose and allows the programmer to define any action they want for Update, Insert
661     or Delete. This may be complex SQL (similar to a Trigger), application specific
662     filtering of updates, or use of statements such as Grant or Revoke instead of
663     normal DML. See User Manual for more information.
665     IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
667     1. TIBEvents: Fix uninitialised variable that could result in lost events.
669     2. TIBExtract: Added support for FB3 "USAGE" privilege.
671     3. TIBExtract: data formatted as Charset set "octets" is now output using
672     hexadecimal notation.
674     4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
675     using a simple XML format.
677     5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
678     grants to these objects.
680     6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
681     dependency problems restoring complex databases.
683     7. TIBXScript: This component has been restructured to allow for the processing of
684     embedded XML in INSERT statements and to support interactive sources in addition
685     to non-interactive data sources such as files.
687     8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
689     9. TIBXScript: ISQL compatiable Set statements are now supported:
691     SET TERM
693     SET BAIL
694     SET ECHO
695     SET COUNT
696     SET STATS
697     SET NAMES <character set>
699     10. IBVersion unit added to hold current IBX Version Number information.
701     11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
702     and domain definitions.
704     12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
705     fully supported.
707     13. TIBExtract: when a database dump includes data, the generator values are now also set.
709     14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
711     IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
713     See also doc/IBX4LazarusGuide.pdf for important information on
714     upgrading to IBX2.
716     1. Size property of TIBStringField is now the width in characters of the field
717     and not the byte length. This applies only to multi-byte character sets such
718     as UTF8. The original approach aligned with TStringField. However, the TStringField
719     code is not recognised as a bug and hence this change to align the behaviour.
720     The TStringField change is expected in fpc 3.2.0.
722     2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
723     true (default) then Size property value saved in the lfm is ignored. Size is
724     always set from the dynamic information read from the database. It is unclear
725     why anyone would want to override this and set Size to false.
727     3. ibxscript: should now handle correctly a Case..End statement within a procedure
728     block.
730     4. IBDatabase: new property - CreateIfNotExists. If true and database does not
731     exist when an attempt is made to connect to it (run time only) then an attempt
732     is made to create the database.
734     5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
735     has been successfully created as a result of a call to CreateDatabase or when
736     creating a database after it was found not to exist.
738     6. DBControlGrid: a race condition could result in the wrong row image being
739     written to the cache. This has been avoided by a trip round the message
740     loop before rendering the row image.
742     7. DBControlGrid: It is strongly recommended not to open the source DataSet for
743     a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
744     known to risk corrupt rendering of row images when the control is first
745     displayed. If necessary use "Application.QueueAsyncCall" to delay opening
746     of the dataset (see DBControlGrid examples) until the Form's Window has been created.
748     8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
749     a TDateEdit control located on an editor panel.
751     9. TIBExtract: brought up-to-date plus many bug fixes.
753     10. DBControlGrid: Removed memory leak when updating rows.
755     11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
757     IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
759     1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
760     when target codepage is CP_NONE. This is a workaround for
763     2. DBLog option removed from TIBStatisticalService - not supported by server
764     since Firebird 1.5.
766     3. ibxscript: An error is no longer generated for "on commit preserve rows" or
767     similar.
769     4. IBCodePage: updated mapping between codepages and character id.
771     5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
772     Firebird. Character sets with a char width of two are not UTF16.
774     6. Strings received from the database are now always transliterated into UTF8
775     regardless of the database character set or connection character set. This
776     is for compatibility with the LCL.
778     IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
780     1. IBBlob: Defer reading of blob until read method called. This avoids having to
781     read in an entire blob just to get the size of the blob. General performance
782     improvement when opening datasets containing blobs.
784     2. Clearing a Blob now sets the corresponding field's modified flag.
786     3. IBLookupCombo: When not performing auto-complete, original query sort order
787     is now used.
789     4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
790     determined.
792     5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
794     6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
795     lazarus 1.6.0
797     7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
798     compilation error.
800     IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
802     1. No character set specified for connection: when a text blob is retrieved, the
803     character set is determined by looking up the native character set using then
804     Firebird API. Otherwise a text mode blob is assumed to have the same character
805     set as the connection.
807     2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
808     for Login Dialog returing a change to the database path.
810     3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
811     to be changed from that given in the TIBDatabase/TIBServer component and for the
812     entered value to be saved on a project specific basis (design time only).
814     4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
815     column fieldname. If they are the same then it is acts as a look up for the KeyValue
816     Otherwise, it sets the column text to the selected ListField Value.
818     5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
819     column width.
821     6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
822     and a case insensitive search is requested.
824     7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
825     or column ListSource.
827     8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
828     unprepare) when closing and the text has not changed.
830     9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
831     Less likely to cause a cursor re-use error on Windows.
833     10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
834     Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
836     11. TIBTreeView: Guard against nil destination on record changed
838     12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
839     string type with the code page set to reflect the returned field encoding after
840     Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
841     earlier versions.
843     13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
844     will now result in transliteration to the code page specified for the Firebird driver
845     if the assigned string has a different code page. FPC 3.0.0 onwards only.
847     14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
848     is ignored and the lc_ctype value, when the database is opened, is set to align with
849     the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
850     platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
851     3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
852     the GETACP is used to determine the Windows code page.
854     15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
855     name used as the lc_ctype when the database was opened. Only valid while the
856     Database is connected.
858     16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
859     id that corresponds to the DefaultCharSetName.
861     IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
863     1. Unix: If Firebird Embedded Server shared object is loaded and a local database
864     path is given and database attach fails due to access permission issues on the
865     temp directory or security database, then the attach is retried with "localhost:"
866     prefixing the databasename. This should avoid problems when the database has to
867     be accessed by a local (e.g. classic) server and libfbembed is used.
869     2. Windows: revised search order for Firebird DLL:
870     i. The Firebird Embedded Server in the application Directory.
871     ii. If the FIREBIRD environment variable is set then the directory this
872     points to is searched for the FB Client DLL and then then underlying
873     "bin" directory.
874     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
875     is used to locate the Firebird installation directory and the underlying
876     "bin" directory is searched for the FB Client DLL.
877     iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
878     are searched for the FB Client DLL.
879     v. The PATH Environment variable is used to search for the FB Client DLL.
880     vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
882     3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
883     See doc/readme.scriptengine and example applications.
885     4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
886     simplify the use of the embedded firebird server on both Linux and Windows platforms.
887     See dpc/readme.localdatabase and example applications.
889     5. IBDynamicGrid: Reordering on column header click should now also work for
890     dynamic columns.
892     6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
893     between incrementing/decrementing the lock count and signalling the event.
895     IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
897     1.3.2 was never formally released and only made available as beta copies.
899     1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
901     2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
903     3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
905     4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
906     i.e. when it is a calculated field
908     5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
909     This problem was due to a race condition between recalculating row heights and
910     determining which row was selected by the mouse click. The row height calculation
911     is now deferred by an extra trip round the message loop allowing the row to
912     be always calculated on the current grid layout rather than risking it being
913     calculated on the grid layout after the expanded row has been shrunk.
915     6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
916     Windows.
918     7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
919     These properties allow the (Firebird) character set name for the field and the max number of bytes per character
920     to be determined at runtime. See doc/readme.charactersets.html.
922     8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
923     TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
925     9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
926     TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
927     1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
929     Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
930     from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
931     implies no truncation.
933     10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
935     11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
936     (avoids "Not in Edit Mode" error).
938     12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
940     13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
941     DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
943     14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
945     15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
947     16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
949     17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
951     IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
953     1. OnCloseUp Event Handler added to TDBLookupProperties
955     2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
956     problem with row size when exception is called.
958     3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
960     4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
961     in a TCustomComboBox and ignores return key if in a TCustomMemo
963     5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
964     keyed in i.e. when autocomplete not performed
966     6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
967     console mode applications with all LCL required functions (builtin dialogs and
968     cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
969     not included in your project, IBX should compile and link with a console mode program.
970     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
971     console mode application or the IDE will automatically assume that your
972     application is GUI based. Instead, you should include the ibexpressconsolemode package.
974     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
975     to use the built in dialogs and cursor management. IBDialogs is
976     included by default if "ibexpress" is in your project source's "uses" clause.
977     This should be the case for all projects created through the IDE. This is why
978     you do not want to add the ibexpress package to console mode applications. The
979     ibexpressconsolemode package has been created to allow console mode programs
980     to avoid adding LCL dependencies when using IBX, while still having the
981     unit search paths set up correctly.
983     Existing users should check to ensure that the "ibexpress" unit is included in
984     each project's source file (*.lpr).
986     You may find that in order for the IDE to recognise that ibexpressconsolemode
987     exists, you have to first open the package in the IDE and then close it. This
988     adds it to the most recently accessed packages list. To make it permanently
989     available, add the package name to lazarus' file.
991     Thanks to Julio Jiménez for suggesting support of console mode.
993     7. SQL Parser can now accept quoted strings that include new lines
995     8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
996     of text on start of edit. This is particularly useful when tabbing to a
997     column and then inserting text.
999     9. New Examples provided for IB Services and ISQLMonitor.
1001     10. Fix error when writing to blob streams that recorded only the last buffer
1002     write in the blob stream. In most cases, this did not cause a problem as the
1003     IB Blob Stream is written in a single write. However, with the TDBImage, write
1004     of a graphic type prefix was lost which caused a problem when the image could
1005     not be automatically recognised.
1007     11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
1008     already open" errors due to random numbers used for the cursor name being identical.
1010     12. IBTable: corrected error that could result in an "Index out of bounds" error
1011     when opening the table and the Primary Key is the last or only column in the
1012     table. Thanks to Rick Hoover for the fix.
1014     13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
1015     of "UTF-8", and update list of available database character sets. Existing
1016     users should check the current lc_ctype setting in their applications.
1018     IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
1020     1. Firebird Services: avoid List Index error when opening a service with an
1021     empty Params property.
1023     2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
1024     Link now set up in Loaded method - avoids occasional failure to apply
1025     SQL markup on initial open.
1027     3. "Employees" example performance improvements when scrolling.
1029     4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
1030     TFrame. Force recaching of selected frame to avoid GTK race (results in a
1031     random image cached).
1033     5. DBControlGrid: Should now react to changes in panel height at run time.
1035     6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
1036     even when further rows exist.
1038     7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
1039     always be derived from panel height and setting this property can cause confusion.
1040     Note for existing projects: to avoid a missing property error at run time,
1041     each form using the DBControlGrid must be opened, updated and saved in the IDE
1042     in order to remove the property value from the lfm.
1045     IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
1047     1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
1048     call Prepare before setting parameter values.
1050     2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
1052     3. Code tidyup and more robust handling of dsql information result vector.
1054     4. Support for centralised handling of transaction status changes. TIBTransaction
1055     has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
1056     and "AfterExecQuery". The first three are called after the same event is called
1057     for an IBCustomDataSet descendent using the Transaction. The fourth is called
1058     after a call to TIBSQL.ExecQuery, again using this transaction. These new events
1059     enable monitoring of transaction status changes for a given transaction to be
1060     handled in a single place. For example, when a change to the dataset occurs
1061     an indicator can be set that shows the user that in order to save changes,
1062     the transaction should be committed. Rather than doing this per dataset, this
1063     can now be done per transaction.
1065     5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
1066     the dataset is scrolled. However, any changes to the current row are, by default,
1067     discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
1068     have a new property "DataSetCloseAction" that adds automatic posting of changes
1069     on dataset close. If this property is set to dcDiscardChanges (default) then the
1070     behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
1071     then IBX will attempt to post any unsaved changes before the dataset is closed
1072     (and after the BeforeClose event handler is called). The exception is when the
1073     dataset is being closed as a result of a transaction rollback. In this case,
1074     no action is taken and any unsaved changes are discarded. This avoids both
1075     unnecessary overhead and the risk that a validation error may occur in the Post
1076     raising an exception and thereby preventing a rollback.
1078     6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
1079     In earlier versions, the Display Width was set to the maximum byte width rather than the character
1080     width. Display Widths are now corrected by dividing by the max byte width per character.
1081     For UTF8 character sets, the byte width is four and hence the Display Width will be
1082     the byte width divided by 4. The byte width of each character set is determined
1083     dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
1084     system table. (see also
1086     7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
1088     8. IBLookupComboEditBox: List should now always be restored to full list when the
1089     control loses focus. Default Key press default interval reduced to 200ms.
1091     9. DBControlGrid: Ensure that selection is changed to newly appended row, even
1092     when dataset rows are less than visible rows.
1094     10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
1095     does not exist or DataSet is empty. More responsive on dataset open. New event
1096     OnRestorePosition. Column sort disabled if no header row.
1098     11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
1099     while dataset state is dsInsert. Avoids posting errors.
1101     12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
1102     avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
1104     13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
1106     14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
1107     to solve a specific problem. That is when the dataset cursor is moved (e.g. by
1108     a grid mouse click and the current row is being edited or inserted. In this case, TDataset
1109     always "posts" the current record regardless or whether or not it may be more appropriate
1110     to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
1111     "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
1112     as the first action of the "Post" method and allows the handler to convert the Post
1113     into a Cancel if that is the appropriate action on moving to a different row. This is
1114     achieved by returning with "CancelPost" argument set to true. Note that an exception could be
1115     raised here, but it may still be more appropriate to validate a post and signal
1116     a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
1118     15. On Unix derived systems, the Firebird library name can now be given as a colon
1119     separated list. Each library name on the list is tried in turn, in left to right
1120     order with the first found being used as the firebird library. By default, on Linux,
1121     the library name list is ''. This can be
1122     overidden by the FBLIB environment variable or the OnGetLibraryName function.
1124     Note: when using the, if you prefix the database name with "localhost:"
1125     then it will still attempt to access the database via the Firebird Server and will
1126     require a username and password. If only the pathname is given, then the username
1127     and password should be omitted and the unix file permissions are used to grant
1128     access.
1130     IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
1132     1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
1133     rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
1134     that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
1135     corresponds to a row of the linked DataSource. Any data aware control on the
1136     replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
1138     2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
1139     When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
1140     takes place during database access. This may be useful when there are performance issues with
1141     the change of cursor. Setting the property to false suppresses the change of cursor.
1143     3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
1144     and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
1145     Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
1146     making all changes permanent immediately rather than when the transaction is explicitly
1147     committed.
1149     4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
1150     using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
1152     IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
1154     Development version only.
1156     IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
1158     1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
1159     This is typically used during an "OnBeforeOpen" event handler to manipulate the
1160     "Where" and "Having" clauses to implement user specified filters of arbitrary
1161     complexity.
1163     2. A new Component Palette entry "Firebird Data Controls" is now available. This has
1164     three new data aware controls dependent on IBX and which make use of the SQL Parser.
1165     These are:
1167     - TIBLookupComboEditBox
1168     - TIBDynamicGrid
1169     - TIBTreeview
1171     TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
1172     of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
1173     to revise the available list and restrict it to items that are prefixed by the
1174     typed text (either case sensitive or case insensitive). Autoinsert allows a
1175     newly typed entry to be added to the list dataset and included in the available
1176     list items.
1178     TIBDynamicGrid is a TDBGrid descendent that provides for:
1179     - automatic resizing of selected columns to fill the available row length
1180     - automatic positioning and sizing of a "totals" control, typically at the
1181     column footer, on a per column basis.
1182     - DataSet resorting on header row click, sorting the dataset by the selected column.
1183     A second click on the same header cell reversed the sort order.
1184     - Support for a "Panel Editor". That is on clicking the indicator column, the row
1185     is automatically expanded and a panel superimposed on it. The panel can have any
1186     number of child controls, typically data aware controls with the same datasource
1187     as the grid allowing for editing of additional fields and more complex editors.
1188     - Reselection of the same row following resorting.
1189     - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
1190     Its properties are specified on a per column basis and allows for one or more
1191     columns to have their values selected from a list provided by a dataset.
1192     Autocomplete and autoinsert are also available. The existing picklist editor
1193     is unaffected by the extension.
1195     TIBTreeView is a data aware TCustomTreeView.
1197     3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
1198     zero scale will no longer return an error. An Int64 will be returned instead.
1200     4. TIBTransaction now has events for Before and After Transaction End and a new function
1201     "GetEndAction" allowing the EndAction to be accessed by these event handlers.
1203     5. TIBQuery can now handle correctly queries which contain the same keyword parameter
1204     repeated multiple times.
1206     6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
1207     check used to get in the way of using Stored Procedures, and "Update or Insert"
1208     statements.
1210     7. Insert, Modify and Delete property Editors now support Query Generation from
1211     Stored Procedures.
1213     8. Three new examples illustrate the use of the new IB Controls
1216     IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
1218     1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
1219     setting performance. See "readme.field+param.names in the doc folder.(Thanks to
1220     Gabor Boros for reporting this problem and for testing the improvements).
1222     2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
1223     See readme.field+param.names in the doc folder.
1225     3. IBX SQL Editors will now automatically add double quotes around column names when the database
1226     dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
1228     4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
1230     5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
1231     actions.
1233     6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
1234     thanks to Yuriy Kopnin for pointing this out).
1236     7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
1238     8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
1239     for both fields and parameter setting.
1241     9. Changes to the Select SQL in an IBCustomDataset descendent should now be
1242     visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
1244     10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
1245     when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
1247     11. TIBTable now has a property editor for "MasterFields"
1249     12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
1250     GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
1252     13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
1253     of settings is unrecognised. Selecting this radio button has no effect on the settings.
1256     IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
1258     1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
1260     IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
1262     1. In a TIBCustomDataset descendent, a generator now only sets the value when
1263     it is null. This allows for alternative user defined setting of the generator
1265     Many thanks to Julio Jiménez for this fix
1267     2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
1268     and suggests that the user may have forgotten to install it.
1270     IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
1272     1. Conditional compilation used to limit registration of TIntegerField to
1273     Lazarus versions less than 1.1
1275     2. When a database connection is created, character set is now by default set
1276     to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
1277     1250 to 1254.
1280     IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
1282     1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
1285     IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
1287     1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
1288     Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
1290     2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
1291     package is changed to do this (which it should do).
1293     IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
1295     1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
1297     2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
1299     3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
1301     4. Property editors should now correctly resize.
1303     5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
1304     (restored original functionality)
1306     6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
1307     library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.