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Revision: 139
Committed: Wed Jan 24 16:16:29 2018 UTC (6 years, 2 months ago) by tony
File size: 43299 byte(s)
Log Message:
Fixes Merged

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# Content
1 IBX Change Log version (2.2-0) Tue, 23 Jan 2018 11:23:09 +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 executing 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. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
24 they are called when the dataset row is being deleted, there is no value in
25 updating the current record from the query result. Instead, a new event handler
26 "OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
27 an OnDeleteReturning event handler is provided then it is called with the IResults returned
28 by the query. The event handler can then interrogate the query results and
29 perform whatever action is necessary. For example to confirm, to the user,
30 the deletion of a row with the returned values.
31
32 4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
33 any Computed By or Identity Columns. The IBTables example has been updated to
34 illustrate the computation of the employee Full Name on update.
35
36 5. TIBTable: The GeneratorField property is now published.
37
38 6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
39 When InsertSQL is generated, the Identity columns are not included in the list of values to
40 be inserted. A RETURNING clause is added to the insert statement to return the value of
41 each Identity column after the insert is executed.
42
43 7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
44 Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
45 Insert..Returning clause.
46
47 8. TIBGenerator: small performance improvement by not preparing query each time
48 a new value is generated.
49
50 9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
51
52 10. Property editors will now sync table name to a System Table when "Include System
53 Tables" is selected and the query is for a System Table.
54
55 11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
56 values are no longer converted to milliseconds from TDateTime and then back again
57 to TDateTime (the conversion to milliseconds is the default TDataset approach).
58
59 12. Property Editors handling of Stored Procedures.
60 * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
61 which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
62 query).
63 * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
64
65 13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
66 can be used to select a package. If non-empty, the stored procedure name is
67 expected to be a stored procedure defined in the specified package and the
68 generated SQL will be as required for a stored procedure located in a package.
69
70 14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
71 a "Package Name" drop down box to allow selection of a Firebird 3 Package from
72 which a stored procedure can be selected. With no package name selected, non-package
73 stored procedures are listed.
74
75 15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
76 for password on reconnect.
77
78 16. IBDatabase: use IAttachment for connection default character set id, code page
79 and character set name.
80
81 17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
82 DB info lookups"
83
84 18. IBExtract: now supports DDL Triggers.
85
86 19. Add a property Editor for TIBUpdate.RefreshSQL.
87
88 20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
89 parameters. This stops an exception being raised when the field cannot be
90 located in the record buffer.
91
92
93 IBX Change Log version (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
94
95 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
96 changes.
97
98 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
99 Bug could result in truncated multi-byte character set values.
100
101 3. Changes consequential on moving fbintf character set utility functions from
102 IFirebirdAPI to IAttachment.
103
104 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
105
106 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
107 results in autocomplete ignoring prefix text.
108
109 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
110 entering a new name into the text box.
111
112 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
113 Firebird rather than recomputing it.
114
115 8. Property Editor positioning tidy up: All IBX Property editors should now be
116 screen centre. Previously some were "poDesigned" which may be inappropriate
117 for multi monitor desktops.
118
119 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
120
121 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
122 a transaction and always reset the object.
123
124 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
125
126 13. TIBXScript: Allow for override of database filename in Create Database statements.
127
128 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
129 to a gbak format archive.
130
131 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
132
133 16. IBLocaldb: Drop database if error creating an empty database.
134
135 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
136 unless selected node not in current dataset.
137
138 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
139 to TIBCustomService, and IBlocalDB code tidy up.
140
141 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
142 behaviour due to uninitialised variable.
143
144 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
145 integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
146
147 21. IBSQL: When Database changed ensure that all resources are freed.
148
149 22. IBCustomDataset: When database changed ensure that queries an unprepared.
150
151 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
152 * Line Wrap on SQL Token boundaries (on user command)
153 * auto-complete table names in drop down list of table names
154 * Double click on tablename or field name adds to SQL text
155
156 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
157
158 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
159 TVariantArray. Seems to avoid memory corruption in Windows (probably a
160 workaround for a problem in fpc 3.0.4 win64).
161
162 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
163
164 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
165
166 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
167
168 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
169 include remote system name.
170
171 2. TIBExtract: No longer include comment header and COMMIT statement for empty
172 tables when data included in output.
173
174 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
175 and timing information to be written to stdout. This may be used to locate
176 performance bottlenecks.
177
178 4. SQLParser: only call "OnChanging" event handler when value is different.
179
180 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
181
182 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
183 that BindFields is called when the query is next activated. Avoids FieldName
184 not found error.
185
186 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
187 purpose and allows the programmer to define any action they want for Update, Insert
188 or Delete. This may be complex SQL (similar to a Trigger), application specific
189 filtering of updates, or use of statements such as Grant or Revoke instead of
190 normal DML. See User Manual for more information.
191
192 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
193
194 1. TIBEvents: Fix uninitialised variable that could result in lost events.
195
196 2. TIBExtract: Added support for FB3 "USAGE" privilege.
197
198 3. TIBExtract: data formatted as Charset set "octets" is now output using
199 hexadecimal notation.
200
201 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
202 using a simple XML format.
203
204 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
205 grants to these objects.
206
207 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
208 dependency problems restoring complex databases.
209
210 7. TIBXScript: This component has been restructured to allow for the processing of
211 embedded XML in INSERT statements and to support interactive sources in addition
212 to non-interactive data sources such as files.
213
214 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
215
216 9. TIBXScript: ISQL compatiable Set statements are now supported:
217 SET SQL DIALECT
218 SET TERM
219 SET AUTODDL
220 SET BAIL
221 SET ECHO
222 SET COUNT
223 SET STATS
224 SET NAMES <character set>
225
226 10. IBVersion unit added to hold current IBX Version Number information.
227
228 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
229 and domain definitions.
230
231 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
232 fully supported.
233
234 13. TIBExtract: when a database dump includes data, the generator values are now also set.
235
236 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
237
238 IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
239
240 See also doc/IBX4LazarusGuide.pdf for important information on
241 upgrading to IBX2.
242
243 1. Size property of TIBStringField is now the width in characters of the field
244 and not the byte length. This applies only to multi-byte character sets such
245 as UTF8. The original approach aligned with TStringField. However, the TStringField
246 code is not recognised as a bug and hence this change to align the behaviour.
247 The TStringField change is expected in fpc 3.2.0.
248
249 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
250 true (default) then Size property value saved in the lfm is ignored. Size is
251 always set from the dynamic information read from the database. It is unclear
252 why anyone would want to override this and set Size to false.
253
254 3. ibxscript: should now handle correctly a Case..End statement within a procedure
255 block.
256
257 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
258 exist when an attempt is made to connect to it (run time only) then an attempt
259 is made to create the database.
260
261 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
262 has been successfully created as a result of a call to CreateDatabase or when
263 creating a database after it was found not to exist.
264
265 6. DBControlGrid: a race condition could result in the wrong row image being
266 written to the cache. This has been avoided by a trip round the message
267 loop before rendering the row image.
268
269 7. DBControlGrid: It is strongly recommended not to open the source DataSet for
270 a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
271 known to risk corrupt rendering of row images when the control is first
272 displayed. If necessary use "Application.QueueAsyncCall" to delay opening
273 of the dataset (see DBControlGrid examples) until the Form's Window has been created.
274
275 8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
276 a TDateEdit control located on an editor panel.
277
278 9. TIBExtract: brought up-to-date plus many bug fixes.
279
280 10. DBControlGrid: Removed memory leak when updating rows.
281
282 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
283
284 IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
285
286 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
287 when target codepage is CP_NONE. This is a workaround for
288 http://bugs.freepascal.org/view.php?id=30622.
289
290 2. DBLog option removed from TIBStatisticalService - not supported by server
291 since Firebird 1.5.
292
293 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
294 similar.
295
296 4. IBCodePage: updated mapping between codepages and character id.
297
298 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
299 Firebird. Character sets with a char width of two are not UTF16.
300
301 6. Strings received from the database are now always transliterated into UTF8
302 regardless of the database character set or connection character set. This
303 is for compatibility with the LCL.
304
305 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
306
307 1. IBBlob: Defer reading of blob until read method called. This avoids having to
308 read in an entire blob just to get the size of the blob. General performance
309 improvement when opening datasets containing blobs.
310
311 2. Clearing a Blob now sets the corresponding field's modified flag.
312
313 3. IBLookupCombo: When not performing auto-complete, original query sort order
314 is now used.
315
316 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
317 determined.
318
319 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
320
321 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
322 lazarus 1.6.0
323
324 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
325 compilation error.
326
327 IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
328
329 1. No character set specified for connection: when a text blob is retrieved, the
330 character set is determined by looking up the native character set using then
331 Firebird API. Otherwise a text mode blob is assumed to have the same character
332 set as the connection.
333
334 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
335 for Login Dialog returing a change to the database path.
336
337 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
338 to be changed from that given in the TIBDatabase/TIBServer component and for the
339 entered value to be saved on a project specific basis (design time only).
340
341 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
342 column fieldname. If they are the same then it is acts as a look up for the KeyValue
343 Otherwise, it sets the column text to the selected ListField Value.
344
345 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
346 column width.
347
348 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
349 and a case insensitive search is requested.
350
351 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
352 or column ListSource.
353
354 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
355 unprepare) when closing and the text has not changed.
356
357 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
358 Less likely to cause a cursor re-use error on Windows.
359
360 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
361 Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
362
363 11. TIBTreeView: Guard against nil destination on record changed
364
365 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
366 string type with the code page set to reflect the returned field encoding after
367 Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
368 earlier versions.
369
370 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
371 will now result in transliteration to the code page specified for the Firebird driver
372 if the assigned string has a different code page. FPC 3.0.0 onwards only.
373
374 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
375 is ignored and the lc_ctype value, when the database is opened, is set to align with
376 the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
377 platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
378 3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
379 the GETACP is used to determine the Windows code page.
380
381 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
382 name used as the lc_ctype when the database was opened. Only valid while the
383 Database is connected.
384
385 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
386 id that corresponds to the DefaultCharSetName.
387
388 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
389
390 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
391 path is given and database attach fails due to access permission issues on the
392 temp directory or security database, then the attach is retried with "localhost:"
393 prefixing the databasename. This should avoid problems when the database has to
394 be accessed by a local (e.g. classic) server and libfbembed is used.
395
396 2. Windows: revised search order for Firebird DLL:
397 i. The Firebird Embedded Server in the application Directory.
398 ii. If the FIREBIRD environment variable is set then the directory this
399 points to is searched for the FB Client DLL and then then underlying
400 "bin" directory.
401 iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
402 is used to locate the Firebird installation directory and the underlying
403 "bin" directory is searched for the FB Client DLL.
404 iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
405 are searched for the FB Client DLL.
406 v. The PATH Environment variable is used to search for the FB Client DLL.
407 vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
408
409 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
410 See doc/readme.scriptengine and example applications.
411
412 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
413 simplify the use of the embedded firebird server on both Linux and Windows platforms.
414 See dpc/readme.localdatabase and example applications.
415
416 5. IBDynamicGrid: Reordering on column header click should now also work for
417 dynamic columns.
418
419 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
420 between incrementing/decrementing the lock count and signalling the event.
421
422 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
423
424 1.3.2 was never formally released and only made available as beta copies.
425
426 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
427
428 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
429
430 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
431
432 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
433 i.e. when it is a calculated field
434
435 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
436 This problem was due to a race condition between recalculating row heights and
437 determining which row was selected by the mouse click. The row height calculation
438 is now deferred by an extra trip round the message loop allowing the row to
439 be always calculated on the current grid layout rather than risking it being
440 calculated on the grid layout after the expanded row has been shrunk.
441
442 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
443 Windows.
444
445 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
446 These properties allow the (Firebird) character set name for the field and the max number of bytes per character
447 to be determined at runtime. See doc/readme.charactersets.html.
448
449 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
450 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
451
452 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
453 TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
454 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
455
456 Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
457 from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
458 implies no truncation.
459
460 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
461
462 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
463 (avoids "Not in Edit Mode" error).
464
465 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
466
467 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
468 DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
469
470 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
471
472 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
473
474 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
475
476 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
477
478 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
479
480 1. OnCloseUp Event Handler added to TDBLookupProperties
481
482 2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
483 problem with row size when exception is called.
484
485 3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
486
487 4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
488 in a TCustomComboBox and ignores return key if in a TCustomMemo
489
490 5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
491 keyed in i.e. when autocomplete not performed
492
493 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
494 console mode applications with all LCL required functions (builtin dialogs and
495 cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
496 not included in your project, IBX should compile and link with a console mode program.
497 See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
498 console mode application or the IDE will automatically assume that your
499 application is GUI based. Instead, you should include the ibexpressconsolemode package.
500
501 IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
502 to use the built in dialogs and cursor management. IBDialogs is
503 included by default if "ibexpress" is in your project source's "uses" clause.
504 This should be the case for all projects created through the IDE. This is why
505 you do not want to add the ibexpress package to console mode applications. The
506 ibexpressconsolemode package has been created to allow console mode programs
507 to avoid adding LCL dependencies when using IBX, while still having the
508 unit search paths set up correctly.
509
510 Existing users should check to ensure that the "ibexpress" unit is included in
511 each project's source file (*.lpr).
512
513 You may find that in order for the IDE to recognise that ibexpressconsolemode
514 exists, you have to first open the package in the IDE and then close it. This
515 adds it to the most recently accessed packages list. To make it permanently
516 available, add the package name to lazarus' staticpackages.inc file.
517
518 Thanks to Julio Jiménez for suggesting support of console mode.
519
520 7. SQL Parser can now accept quoted strings that include new lines
521
522 8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
523 of text on start of edit. This is particularly useful when tabbing to a
524 column and then inserting text.
525
526 9. New Examples provided for IB Services and ISQLMonitor.
527
528 10. Fix error when writing to blob streams that recorded only the last buffer
529 write in the blob stream. In most cases, this did not cause a problem as the
530 IB Blob Stream is written in a single write. However, with the TDBImage, write
531 of a graphic type prefix was lost which caused a problem when the image could
532 not be automatically recognised.
533
534 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
535 already open" errors due to random numbers used for the cursor name being identical.
536
537 12. IBTable: corrected error that could result in an "Index out of bounds" error
538 when opening the table and the Primary Key is the last or only column in the
539 table. Thanks to Rick Hoover for the fix.
540
541 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
542 of "UTF-8", and update list of available database character sets. Existing
543 users should check the current lc_ctype setting in their applications.
544
545 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
546
547 1. Firebird Services: avoid List Index error when opening a service with an
548 empty Params property.
549
550 2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
551 Link now set up in Loaded method - avoids occasional failure to apply
552 SQL markup on initial open.
553
554 3. "Employees" example performance improvements when scrolling.
555
556 4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
557 TFrame. Force recaching of selected frame to avoid GTK race (results in a
558 random image cached).
559
560 5. DBControlGrid: Should now react to changes in panel height at run time.
561
562 6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
563 even when further rows exist.
564
565 7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
566 always be derived from panel height and setting this property can cause confusion.
567 Note for existing projects: to avoid a missing property error at run time,
568 each form using the DBControlGrid must be opened, updated and saved in the IDE
569 in order to remove the property value from the lfm.
570
571
572 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
573
574 1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
575 call Prepare before setting parameter values.
576
577 2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
578
579 3. Code tidyup and more robust handling of dsql information result vector.
580
581 4. Support for centralised handling of transaction status changes. TIBTransaction
582 has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
583 and "AfterExecQuery". The first three are called after the same event is called
584 for an IBCustomDataSet descendent using the Transaction. The fourth is called
585 after a call to TIBSQL.ExecQuery, again using this transaction. These new events
586 enable monitoring of transaction status changes for a given transaction to be
587 handled in a single place. For example, when a change to the dataset occurs
588 an indicator can be set that shows the user that in order to save changes,
589 the transaction should be committed. Rather than doing this per dataset, this
590 can now be done per transaction.
591
592 5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
593 the dataset is scrolled. However, any changes to the current row are, by default,
594 discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
595 have a new property "DataSetCloseAction" that adds automatic posting of changes
596 on dataset close. If this property is set to dcDiscardChanges (default) then the
597 behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
598 then IBX will attempt to post any unsaved changes before the dataset is closed
599 (and after the BeforeClose event handler is called). The exception is when the
600 dataset is being closed as a result of a transaction rollback. In this case,
601 no action is taken and any unsaved changes are discarded. This avoids both
602 unnecessary overhead and the risk that a validation error may occur in the Post
603 raising an exception and thereby preventing a rollback.
604
605 6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
606 In earlier versions, the Display Width was set to the maximum byte width rather than the character
607 width. Display Widths are now corrected by dividing by the max byte width per character.
608 For UTF8 character sets, the byte width is four and hence the Display Width will be
609 the byte width divided by 4. The byte width of each character set is determined
610 dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
611 system table. (see also http://bugs.freepascal.org/view.php?id=27766).
612
613 7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
614
615 8. IBLookupComboEditBox: List should now always be restored to full list when the
616 control loses focus. Default Key press default interval reduced to 200ms.
617
618 9. DBControlGrid: Ensure that selection is changed to newly appended row, even
619 when dataset rows are less than visible rows.
620
621 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
622 does not exist or DataSet is empty. More responsive on dataset open. New event
623 OnRestorePosition. Column sort disabled if no header row.
624
625 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
626 while dataset state is dsInsert. Avoids posting errors.
627
628 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
629 avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
630
631 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
632
633 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
634 to solve a specific problem. That is when the dataset cursor is moved (e.g. by
635 a grid mouse click and the current row is being edited or inserted. In this case, TDataset
636 always "posts" the current record regardless or whether or not it may be more appropriate
637 to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
638 "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
639 as the first action of the "Post" method and allows the handler to convert the Post
640 into a Cancel if that is the appropriate action on moving to a different row. This is
641 achieved by returning with "CancelPost" argument set to true. Note that an exception could be
642 raised here, but it may still be more appropriate to validate a post and signal
643 a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
644
645 15. On Unix derived systems, the Firebird library name can now be given as a colon
646 separated list. Each library name on the list is tried in turn, in left to right
647 order with the first found being used as the firebird library. By default, on Linux,
648 the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
649 overidden by the FBLIB environment variable or the OnGetLibraryName function.
650
651 Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
652 then it will still attempt to access the database via the Firebird Server and will
653 require a username and password. If only the pathname is given, then the username
654 and password should be omitted and the unix file permissions are used to grant
655 access.
656
657 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
658
659 1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
660 rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
661 that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
662 corresponds to a row of the linked DataSource. Any data aware control on the
663 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
664
665 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
666 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
667 takes place during database access. This may be useful when there are performance issues with
668 the change of cursor. Setting the property to false suppresses the change of cursor.
669
670 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
671 and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
672 Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
673 making all changes permanent immediately rather than when the transaction is explicitly
674 committed.
675
676 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
677 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
678
679 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
680
681 Development version only.
682
683 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
684
685 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
686 This is typically used during an "OnBeforeOpen" event handler to manipulate the
687 "Where" and "Having" clauses to implement user specified filters of arbitrary
688 complexity.
689
690 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
691 three new data aware controls dependent on IBX and which make use of the SQL Parser.
692 These are:
693
694 - TIBLookupComboEditBox
695 - TIBDynamicGrid
696 - TIBTreeview
697
698 TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
699 of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
700 to revise the available list and restrict it to items that are prefixed by the
701 typed text (either case sensitive or case insensitive). Autoinsert allows a
702 newly typed entry to be added to the list dataset and included in the available
703 list items.
704
705 TIBDynamicGrid is a TDBGrid descendent that provides for:
706 - automatic resizing of selected columns to fill the available row length
707 - automatic positioning and sizing of a "totals" control, typically at the
708 column footer, on a per column basis.
709 - DataSet resorting on header row click, sorting the dataset by the selected column.
710 A second click on the same header cell reversed the sort order.
711 - Support for a "Panel Editor". That is on clicking the indicator column, the row
712 is automatically expanded and a panel superimposed on it. The panel can have any
713 number of child controls, typically data aware controls with the same datasource
714 as the grid allowing for editing of additional fields and more complex editors.
715 - Reselection of the same row following resorting.
716 - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
717 Its properties are specified on a per column basis and allows for one or more
718 columns to have their values selected from a list provided by a dataset.
719 Autocomplete and autoinsert are also available. The existing picklist editor
720 is unaffected by the extension.
721
722 TIBTreeView is a data aware TCustomTreeView.
723
724 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
725 zero scale will no longer return an error. An Int64 will be returned instead.
726
727 4. TIBTransaction now has events for Before and After Transaction End and a new function
728 "GetEndAction" allowing the EndAction to be accessed by these event handlers.
729
730 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
731 repeated multiple times.
732
733 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
734 check used to get in the way of using Stored Procedures, and "Update or Insert"
735 statements.
736
737 7. Insert, Modify and Delete property Editors now support Query Generation from
738 Stored Procedures.
739
740 8. Three new examples illustrate the use of the new IB Controls
741
742
743 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
744
745 1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
746 setting performance. See "readme.field+param.names in the doc folder.(Thanks to
747 Gabor Boros for reporting this problem and for testing the improvements).
748
749 2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
750 See readme.field+param.names in the doc folder.
751
752 3. IBX SQL Editors will now automatically add double quotes around column names when the database
753 dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
754
755 4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
756
757 5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
758 actions.
759
760 6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
761 thanks to Yuriy Kopnin for pointing this out).
762
763 7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
764
765 8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
766 for both fields and parameter setting.
767
768 9. Changes to the Select SQL in an IBCustomDataset descendent should now be
769 visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
770
771 10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
772 when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
773
774 11. TIBTable now has a property editor for "MasterFields"
775
776 12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
777 GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
778
779 13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
780 of settings is unrecognised. Selecting this radio button has no effect on the settings.
781
782
783 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
784
785 1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
786
787 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
788
789 1. In a TIBCustomDataset descendent, a generator now only sets the value when
790 it is null. This allows for alternative user defined setting of the generator
791
792 Many thanks to Julio Jiménez for this fix
793
794 2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
795 and suggests that the user may have forgotten to install it.
796
797 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
798
799 1. Conditional compilation used to limit registration of TIntegerField to
800 Lazarus versions less than 1.1
801
802 2. When a database connection is created, character set is now by default set
803 to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
804 1250 to 1254.
805
806
807 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
808
809 1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
810
811
812 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
813
814 1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
815 Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
816
817 2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
818 package is changed to do this (which it should do).
819
820 IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
821
822 1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
823
824 2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
825
826 3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
827
828 4. Property editors should now correctly resize.
829
830 5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
831 (restored original functionality)
832
833 6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
834 library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.