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Revision: 105
Committed: Thu Jan 18 14:37:32 2018 UTC (6 years, 2 months ago) by tony
File size: 39402 byte(s)
Log Message:
Property Editor Fixes

File Contents

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