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Revision: 114
Committed: Fri Jan 19 09:16:06 2018 UTC (6 years, 2 months ago) by tony
File size: 42141 byte(s)
Log Message:
Tagging 2.2.0 RC1

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# Content
1 IBX Change Log version (2.2-0) Tue, 16 Jan 2018 16:49:07 +0000
2
3 1. IBExtract: Identity columns - add additional check for null column for generator name.
4
5 2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
6 The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
7 information). However, this is also a very useful mechanism for returning updated computed by
8 column values. Values returned as a result of executing an Insert or Update statement
9 replace existing values in the current row for each corresponding column.
10
11 Previously, if a dataset's select query included read only (computed by) fields then
12 an automatic row refresh was performed after an insert or update query had been processed,
13 irrespective of the setting of the "ForcedUpdates" property. This has changed such
14 that an automatic refresh is no longer performed if an insert or update query contains
15 a returning clause that updates one or more fields on the current row. A full row
16 refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
17 field values and the select query contains read only fields. Use of Insert/update
18 returning should be significantly more efficient than excuting a refresh query.
19
20 This behaviour change is intended to be backwards compatible and there should be no need to change
21 existing programs, other than to improve performance by using the new capability.
22
23 3. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
24 any Computed By or Identity Columns. The IBTables example has been updated to
25 illustrate the computation of the employee Full Name on update.
26
27 4. TIBTable: The GeneratorField property is now published.
28
29 5. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
30 When InsertSQL is generated, the Identity columns are not included in the list of values to
31 be inserted. A RETURNING clause is added to the insert statement to return the value of
32 each Identity column after the insert is executed.
33
34 6. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
35 Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
36 Insert..Returning clause.
37
38 7. TIBGenerator: small performance improvement by not preparing query each time
39 a new value is generated.
40
41 8. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
42
43 9. Property editors will now sync table name to a System Table when "Include System
44 Tables" is selected and the query is for a System Table.
45
46 10. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
47 values are no longer converted to milliseconds from TDateTime and then back again
48 to TDateTime (the conversion to milliseconds is the default TDataset approach).
49
50 11. Property Editors handling of Stored Procedures.
51 * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
52 which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
53 query).
54 * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
55
56 12. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
57 can be used to select a package. If non-empty, the stored procedure name is
58 expected to be a stored procedure defined in the specified package and the
59 generated SQL will be as required for a stored procedure located in a package.
60
61 13. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
62 a "Package Name" drop down box to allow selection of a Firebird 3 Package from
63 which a stored procedure can be selected. With no package name selected, non-package
64 stored procedures are listed.
65
66 14. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
67 for password on reconnect.
68
69
70 IBX Change Log version (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
71
72 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
73 changes.
74
75 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
76 Bug could result in truncated multi-byte character set values.
77
78 3. Changes consequential on moving fbintf character set utility functions from
79 IFirebirdAPI to IAttachment.
80
81 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
82
83 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
84 results in autocomplete ignoring prefix text.
85
86 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
87 entering a new name into the text box.
88
89 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
90 Firebird rather than recomputing it.
91
92 8. Property Editor positioning tidy up: All IBX Property editors should now be
93 screen centre. Previously some were "poDesigned" which may be inappropriate
94 for multi monitor desktops.
95
96 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
97
98 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
99 a transaction and always reset the object.
100
101 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
102
103 13. TIBXScript: Allow for override of database filename in Create Database statements.
104
105 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
106 to a gbak format archive.
107
108 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
109
110 16. IBLocaldb: Drop database if error creating an empty database.
111
112 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
113 unless selected node not in current dataset.
114
115 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
116 to TIBCustomService, and IBlocalDB code tidy up.
117
118 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
119 behaviour due to uninitialised variable.
120
121 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
122 integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
123
124 21. IBSQL: When Database changed ensure that all resources are freed.
125
126 22. IBCustomDataset: When database changed ensure that queries an unprepared.
127
128 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
129 * Line Wrap on SQL Token boundaries (on user command)
130 * auto-complete table names in drop down list of table names
131 * Double click on tablename or field name adds to SQL text
132
133 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
134
135 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
136 TVariantArray. Seems to avoid memory corruption in Windows (probably a
137 workaround for a problem in fpc 3.0.4 win64).
138
139 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
140
141 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
142
143 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
144
145 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
146 include remote system name.
147
148 2. TIBExtract: No longer include comment header and COMMIT statement for empty
149 tables when data included in output.
150
151 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
152 and timing information to be written to stdout. This may be used to locate
153 performance bottlenecks.
154
155 4. SQLParser: only call "OnChanging" event handler when value is different.
156
157 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
158
159 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
160 that BindFields is called when the query is next activated. Avoids FieldName
161 not found error.
162
163 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
164 purpose and allows the programmer to define any action they want for Update, Insert
165 or Delete. This may be complex SQL (similar to a Trigger), application specific
166 filtering of updates, or use of statements such as Grant or Revoke instead of
167 normal DML. See User Manual for more information.
168
169 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
170
171 1. TIBEvents: Fix uninitialised variable that could result in lost events.
172
173 2. TIBExtract: Added support for FB3 "USAGE" privilege.
174
175 3. TIBExtract: data formatted as Charset set "octets" is now output using
176 hexadecimal notation.
177
178 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
179 using a simple XML format.
180
181 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
182 grants to these objects.
183
184 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
185 dependency problems restoring complex databases.
186
187 7. TIBXScript: This component has been restructured to allow for the processing of
188 embedded XML in INSERT statements and to support interactive sources in addition
189 to non-interactive data sources such as files.
190
191 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
192
193 9. TIBXScript: ISQL compatiable Set statements are now supported:
194 SET SQL DIALECT
195 SET TERM
196 SET AUTODDL
197 SET BAIL
198 SET ECHO
199 SET COUNT
200 SET STATS
201 SET NAMES <character set>
202
203 10. IBVersion unit added to hold current IBX Version Number information.
204
205 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
206 and domain definitions.
207
208 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
209 fully supported.
210
211 13. TIBExtract: when a database dump includes data, the generator values are now also set.
212
213 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
214
215 IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
216
217 See also doc/IBX4LazarusGuide.pdf for important information on
218 upgrading to IBX2.
219
220 1. Size property of TIBStringField is now the width in characters of the field
221 and not the byte length. This applies only to multi-byte character sets such
222 as UTF8. The original approach aligned with TStringField. However, the TStringField
223 code is not recognised as a bug and hence this change to align the behaviour.
224 The TStringField change is expected in fpc 3.2.0.
225
226 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
227 true (default) then Size property value saved in the lfm is ignored. Size is
228 always set from the dynamic information read from the database. It is unclear
229 why anyone would want to override this and set Size to false.
230
231 3. ibxscript: should now handle correctly a Case..End statement within a procedure
232 block.
233
234 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
235 exist when an attempt is made to connect to it (run time only) then an attempt
236 is made to create the database.
237
238 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
239 has been successfully created as a result of a call to CreateDatabase or when
240 creating a database after it was found not to exist.
241
242 6. DBControlGrid: a race condition could result in the wrong row image being
243 written to the cache. This has been avoided by a trip round the message
244 loop before rendering the row image.
245
246 7. DBControlGrid: It is strongly recommended not to open the source DataSet for
247 a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
248 known to risk corrupt rendering of row images when the control is first
249 displayed. If necessary use "Application.QueueAsyncCall" to delay opening
250 of the dataset (see DBControlGrid examples) until the Form's Window has been created.
251
252 8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
253 a TDateEdit control located on an editor panel.
254
255 9. TIBExtract: brought up-to-date plus many bug fixes.
256
257 10. DBControlGrid: Removed memory leak when updating rows.
258
259 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
260
261 IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
262
263 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
264 when target codepage is CP_NONE. This is a workaround for
265 http://bugs.freepascal.org/view.php?id=30622.
266
267 2. DBLog option removed from TIBStatisticalService - not supported by server
268 since Firebird 1.5.
269
270 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
271 similar.
272
273 4. IBCodePage: updated mapping between codepages and character id.
274
275 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
276 Firebird. Character sets with a char width of two are not UTF16.
277
278 6. Strings received from the database are now always transliterated into UTF8
279 regardless of the database character set or connection character set. This
280 is for compatibility with the LCL.
281
282 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
283
284 1. IBBlob: Defer reading of blob until read method called. This avoids having to
285 read in an entire blob just to get the size of the blob. General performance
286 improvement when opening datasets containing blobs.
287
288 2. Clearing a Blob now sets the corresponding field's modified flag.
289
290 3. IBLookupCombo: When not performing auto-complete, original query sort order
291 is now used.
292
293 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
294 determined.
295
296 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
297
298 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
299 lazarus 1.6.0
300
301 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
302 compilation error.
303
304 IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
305
306 1. No character set specified for connection: when a text blob is retrieved, the
307 character set is determined by looking up the native character set using then
308 Firebird API. Otherwise a text mode blob is assumed to have the same character
309 set as the connection.
310
311 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
312 for Login Dialog returing a change to the database path.
313
314 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
315 to be changed from that given in the TIBDatabase/TIBServer component and for the
316 entered value to be saved on a project specific basis (design time only).
317
318 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
319 column fieldname. If they are the same then it is acts as a look up for the KeyValue
320 Otherwise, it sets the column text to the selected ListField Value.
321
322 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
323 column width.
324
325 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
326 and a case insensitive search is requested.
327
328 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
329 or column ListSource.
330
331 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
332 unprepare) when closing and the text has not changed.
333
334 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
335 Less likely to cause a cursor re-use error on Windows.
336
337 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
338 Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
339
340 11. TIBTreeView: Guard against nil destination on record changed
341
342 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
343 string type with the code page set to reflect the returned field encoding after
344 Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
345 earlier versions.
346
347 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
348 will now result in transliteration to the code page specified for the Firebird driver
349 if the assigned string has a different code page. FPC 3.0.0 onwards only.
350
351 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
352 is ignored and the lc_ctype value, when the database is opened, is set to align with
353 the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
354 platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
355 3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
356 the GETACP is used to determine the Windows code page.
357
358 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
359 name used as the lc_ctype when the database was opened. Only valid while the
360 Database is connected.
361
362 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
363 id that corresponds to the DefaultCharSetName.
364
365 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
366
367 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
368 path is given and database attach fails due to access permission issues on the
369 temp directory or security database, then the attach is retried with "localhost:"
370 prefixing the databasename. This should avoid problems when the database has to
371 be accessed by a local (e.g. classic) server and libfbembed is used.
372
373 2. Windows: revised search order for Firebird DLL:
374 i. The Firebird Embedded Server in the application Directory.
375 ii. If the FIREBIRD environment variable is set then the directory this
376 points to is searched for the FB Client DLL and then then underlying
377 "bin" directory.
378 iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
379 is used to locate the Firebird installation directory and the underlying
380 "bin" directory is searched for the FB Client DLL.
381 iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
382 are searched for the FB Client DLL.
383 v. The PATH Environment variable is used to search for the FB Client DLL.
384 vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
385
386 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
387 See doc/readme.scriptengine and example applications.
388
389 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
390 simplify the use of the embedded firebird server on both Linux and Windows platforms.
391 See dpc/readme.localdatabase and example applications.
392
393 5. IBDynamicGrid: Reordering on column header click should now also work for
394 dynamic columns.
395
396 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
397 between incrementing/decrementing the lock count and signalling the event.
398
399 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
400
401 1.3.2 was never formally released and only made available as beta copies.
402
403 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
404
405 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
406
407 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
408
409 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
410 i.e. when it is a calculated field
411
412 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
413 This problem was due to a race condition between recalculating row heights and
414 determining which row was selected by the mouse click. The row height calculation
415 is now deferred by an extra trip round the message loop allowing the row to
416 be always calculated on the current grid layout rather than risking it being
417 calculated on the grid layout after the expanded row has been shrunk.
418
419 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
420 Windows.
421
422 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
423 These properties allow the (Firebird) character set name for the field and the max number of bytes per character
424 to be determined at runtime. See doc/readme.charactersets.html.
425
426 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
427 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
428
429 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
430 TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
431 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
432
433 Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
434 from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
435 implies no truncation.
436
437 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
438
439 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
440 (avoids "Not in Edit Mode" error).
441
442 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
443
444 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
445 DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
446
447 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
448
449 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
450
451 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
452
453 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
454
455 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
456
457 1. OnCloseUp Event Handler added to TDBLookupProperties
458
459 2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
460 problem with row size when exception is called.
461
462 3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
463
464 4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
465 in a TCustomComboBox and ignores return key if in a TCustomMemo
466
467 5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
468 keyed in i.e. when autocomplete not performed
469
470 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
471 console mode applications with all LCL required functions (builtin dialogs and
472 cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
473 not included in your project, IBX should compile and link with a console mode program.
474 See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
475 console mode application or the IDE will automatically assume that your
476 application is GUI based. Instead, you should include the ibexpressconsolemode package.
477
478 IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
479 to use the built in dialogs and cursor management. IBDialogs is
480 included by default if "ibexpress" is in your project source's "uses" clause.
481 This should be the case for all projects created through the IDE. This is why
482 you do not want to add the ibexpress package to console mode applications. The
483 ibexpressconsolemode package has been created to allow console mode programs
484 to avoid adding LCL dependencies when using IBX, while still having the
485 unit search paths set up correctly.
486
487 Existing users should check to ensure that the "ibexpress" unit is included in
488 each project's source file (*.lpr).
489
490 You may find that in order for the IDE to recognise that ibexpressconsolemode
491 exists, you have to first open the package in the IDE and then close it. This
492 adds it to the most recently accessed packages list. To make it permanently
493 available, add the package name to lazarus' staticpackages.inc file.
494
495 Thanks to Julio Jiménez for suggesting support of console mode.
496
497 7. SQL Parser can now accept quoted strings that include new lines
498
499 8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
500 of text on start of edit. This is particularly useful when tabbing to a
501 column and then inserting text.
502
503 9. New Examples provided for IB Services and ISQLMonitor.
504
505 10. Fix error when writing to blob streams that recorded only the last buffer
506 write in the blob stream. In most cases, this did not cause a problem as the
507 IB Blob Stream is written in a single write. However, with the TDBImage, write
508 of a graphic type prefix was lost which caused a problem when the image could
509 not be automatically recognised.
510
511 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
512 already open" errors due to random numbers used for the cursor name being identical.
513
514 12. IBTable: corrected error that could result in an "Index out of bounds" error
515 when opening the table and the Primary Key is the last or only column in the
516 table. Thanks to Rick Hoover for the fix.
517
518 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
519 of "UTF-8", and update list of available database character sets. Existing
520 users should check the current lc_ctype setting in their applications.
521
522 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
523
524 1. Firebird Services: avoid List Index error when opening a service with an
525 empty Params property.
526
527 2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
528 Link now set up in Loaded method - avoids occasional failure to apply
529 SQL markup on initial open.
530
531 3. "Employees" example performance improvements when scrolling.
532
533 4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
534 TFrame. Force recaching of selected frame to avoid GTK race (results in a
535 random image cached).
536
537 5. DBControlGrid: Should now react to changes in panel height at run time.
538
539 6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
540 even when further rows exist.
541
542 7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
543 always be derived from panel height and setting this property can cause confusion.
544 Note for existing projects: to avoid a missing property error at run time,
545 each form using the DBControlGrid must be opened, updated and saved in the IDE
546 in order to remove the property value from the lfm.
547
548
549 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
550
551 1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
552 call Prepare before setting parameter values.
553
554 2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
555
556 3. Code tidyup and more robust handling of dsql information result vector.
557
558 4. Support for centralised handling of transaction status changes. TIBTransaction
559 has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
560 and "AfterExecQuery". The first three are called after the same event is called
561 for an IBCustomDataSet descendent using the Transaction. The fourth is called
562 after a call to TIBSQL.ExecQuery, again using this transaction. These new events
563 enable monitoring of transaction status changes for a given transaction to be
564 handled in a single place. For example, when a change to the dataset occurs
565 an indicator can be set that shows the user that in order to save changes,
566 the transaction should be committed. Rather than doing this per dataset, this
567 can now be done per transaction.
568
569 5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
570 the dataset is scrolled. However, any changes to the current row are, by default,
571 discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
572 have a new property "DataSetCloseAction" that adds automatic posting of changes
573 on dataset close. If this property is set to dcDiscardChanges (default) then the
574 behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
575 then IBX will attempt to post any unsaved changes before the dataset is closed
576 (and after the BeforeClose event handler is called). The exception is when the
577 dataset is being closed as a result of a transaction rollback. In this case,
578 no action is taken and any unsaved changes are discarded. This avoids both
579 unnecessary overhead and the risk that a validation error may occur in the Post
580 raising an exception and thereby preventing a rollback.
581
582 6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
583 In earlier versions, the Display Width was set to the maximum byte width rather than the character
584 width. Display Widths are now corrected by dividing by the max byte width per character.
585 For UTF8 character sets, the byte width is four and hence the Display Width will be
586 the byte width divided by 4. The byte width of each character set is determined
587 dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
588 system table. (see also http://bugs.freepascal.org/view.php?id=27766).
589
590 7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
591
592 8. IBLookupComboEditBox: List should now always be restored to full list when the
593 control loses focus. Default Key press default interval reduced to 200ms.
594
595 9. DBControlGrid: Ensure that selection is changed to newly appended row, even
596 when dataset rows are less than visible rows.
597
598 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
599 does not exist or DataSet is empty. More responsive on dataset open. New event
600 OnRestorePosition. Column sort disabled if no header row.
601
602 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
603 while dataset state is dsInsert. Avoids posting errors.
604
605 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
606 avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
607
608 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
609
610 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
611 to solve a specific problem. That is when the dataset cursor is moved (e.g. by
612 a grid mouse click and the current row is being edited or inserted. In this case, TDataset
613 always "posts" the current record regardless or whether or not it may be more appropriate
614 to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
615 "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
616 as the first action of the "Post" method and allows the handler to convert the Post
617 into a Cancel if that is the appropriate action on moving to a different row. This is
618 achieved by returning with "CancelPost" argument set to true. Note that an exception could be
619 raised here, but it may still be more appropriate to validate a post and signal
620 a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
621
622 15. On Unix derived systems, the Firebird library name can now be given as a colon
623 separated list. Each library name on the list is tried in turn, in left to right
624 order with the first found being used as the firebird library. By default, on Linux,
625 the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
626 overidden by the FBLIB environment variable or the OnGetLibraryName function.
627
628 Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
629 then it will still attempt to access the database via the Firebird Server and will
630 require a username and password. If only the pathname is given, then the username
631 and password should be omitted and the unix file permissions are used to grant
632 access.
633
634 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
635
636 1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
637 rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
638 that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
639 corresponds to a row of the linked DataSource. Any data aware control on the
640 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
641
642 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
643 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
644 takes place during database access. This may be useful when there are performance issues with
645 the change of cursor. Setting the property to false suppresses the change of cursor.
646
647 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
648 and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
649 Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
650 making all changes permanent immediately rather than when the transaction is explicitly
651 committed.
652
653 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
654 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
655
656 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
657
658 Development version only.
659
660 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
661
662 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
663 This is typically used during an "OnBeforeOpen" event handler to manipulate the
664 "Where" and "Having" clauses to implement user specified filters of arbitrary
665 complexity.
666
667 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
668 three new data aware controls dependent on IBX and which make use of the SQL Parser.
669 These are:
670
671 - TIBLookupComboEditBox
672 - TIBDynamicGrid
673 - TIBTreeview
674
675 TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
676 of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
677 to revise the available list and restrict it to items that are prefixed by the
678 typed text (either case sensitive or case insensitive). Autoinsert allows a
679 newly typed entry to be added to the list dataset and included in the available
680 list items.
681
682 TIBDynamicGrid is a TDBGrid descendent that provides for:
683 - automatic resizing of selected columns to fill the available row length
684 - automatic positioning and sizing of a "totals" control, typically at the
685 column footer, on a per column basis.
686 - DataSet resorting on header row click, sorting the dataset by the selected column.
687 A second click on the same header cell reversed the sort order.
688 - Support for a "Panel Editor". That is on clicking the indicator column, the row
689 is automatically expanded and a panel superimposed on it. The panel can have any
690 number of child controls, typically data aware controls with the same datasource
691 as the grid allowing for editing of additional fields and more complex editors.
692 - Reselection of the same row following resorting.
693 - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
694 Its properties are specified on a per column basis and allows for one or more
695 columns to have their values selected from a list provided by a dataset.
696 Autocomplete and autoinsert are also available. The existing picklist editor
697 is unaffected by the extension.
698
699 TIBTreeView is a data aware TCustomTreeView.
700
701 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
702 zero scale will no longer return an error. An Int64 will be returned instead.
703
704 4. TIBTransaction now has events for Before and After Transaction End and a new function
705 "GetEndAction" allowing the EndAction to be accessed by these event handlers.
706
707 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
708 repeated multiple times.
709
710 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
711 check used to get in the way of using Stored Procedures, and "Update or Insert"
712 statements.
713
714 7. Insert, Modify and Delete property Editors now support Query Generation from
715 Stored Procedures.
716
717 8. Three new examples illustrate the use of the new IB Controls
718
719
720 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
721
722 1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
723 setting performance. See "readme.field+param.names in the doc folder.(Thanks to
724 Gabor Boros for reporting this problem and for testing the improvements).
725
726 2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
727 See readme.field+param.names in the doc folder.
728
729 3. IBX SQL Editors will now automatically add double quotes around column names when the database
730 dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
731
732 4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
733
734 5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
735 actions.
736
737 6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
738 thanks to Yuriy Kopnin for pointing this out).
739
740 7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
741
742 8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
743 for both fields and parameter setting.
744
745 9. Changes to the Select SQL in an IBCustomDataset descendent should now be
746 visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
747
748 10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
749 when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
750
751 11. TIBTable now has a property editor for "MasterFields"
752
753 12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
754 GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
755
756 13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
757 of settings is unrecognised. Selecting this radio button has no effect on the settings.
758
759
760 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
761
762 1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
763
764 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
765
766 1. In a TIBCustomDataset descendent, a generator now only sets the value when
767 it is null. This allows for alternative user defined setting of the generator
768
769 Many thanks to Julio Jiménez for this fix
770
771 2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
772 and suggests that the user may have forgotten to install it.
773
774 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
775
776 1. Conditional compilation used to limit registration of TIntegerField to
777 Lazarus versions less than 1.1
778
779 2. When a database connection is created, character set is now by default set
780 to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
781 1250 to 1254.
782
783
784 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
785
786 1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
787
788
789 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
790
791 1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
792 Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
793
794 2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
795 package is changed to do this (which it should do).
796
797 IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
798
799 1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
800
801 2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
802
803 3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
804
805 4. Property editors should now correctly resize.
806
807 5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
808 (restored original functionality)
809
810 6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
811 library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.