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Revision: 107
Committed: Thu Jan 18 14:37:40 2018 UTC (6 years, 2 months ago) by tony
File size: 42019 byte(s)
Log Message:
Fixes merged

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