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Revision: 101
Committed: Thu Jan 18 14:37:18 2018 UTC (6 years, 2 months ago) by tony
File size: 38870 byte(s)
Log Message:
Fixes merged for support of Identity Columns

File Contents

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