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Revision: 118
Committed: Mon Jan 22 13:58:14 2018 UTC (2 years, 1 month ago) by tony
File size: 43042 byte(s)
Log Message:
Fixes Merged
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1 IBX Change Log version (2.2-0) Sat, 20 Jan 2018 12:09:59 +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. 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
87 IBX Change Log version (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
88
89 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
90 changes.
91
92 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
93 Bug could result in truncated multi-byte character set values.
94
95 3. Changes consequential on moving fbintf character set utility functions from
96 IFirebirdAPI to IAttachment.
97
98 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
99
100 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
101 results in autocomplete ignoring prefix text.
102
103 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
104 entering a new name into the text box.
105
106 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
107 Firebird rather than recomputing it.
108
109 8. Property Editor positioning tidy up: All IBX Property editors should now be
110 screen centre. Previously some were "poDesigned" which may be inappropriate
111 for multi monitor desktops.
112
113 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
114
115 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
116 a transaction and always reset the object.
117
118 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
119
120 13. TIBXScript: Allow for override of database filename in Create Database statements.
121
122 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
123 to a gbak format archive.
124
125 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
126
127 16. IBLocaldb: Drop database if error creating an empty database.
128
129 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
130 unless selected node not in current dataset.
131
132 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
133 to TIBCustomService, and IBlocalDB code tidy up.
134
135 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
136 behaviour due to uninitialised variable.
137
138 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
139 integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
140
141 21. IBSQL: When Database changed ensure that all resources are freed.
142
143 22. IBCustomDataset: When database changed ensure that queries an unprepared.
144
145 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
146 * Line Wrap on SQL Token boundaries (on user command)
147 * auto-complete table names in drop down list of table names
148 * Double click on tablename or field name adds to SQL text
149
150 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
151
152 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
153 TVariantArray. Seems to avoid memory corruption in Windows (probably a
154 workaround for a problem in fpc 3.0.4 win64).
155
156 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
157
158 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
159
160 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
161
162 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
163 include remote system name.
164
165 2. TIBExtract: No longer include comment header and COMMIT statement for empty
166 tables when data included in output.
167
168 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
169 and timing information to be written to stdout. This may be used to locate
170 performance bottlenecks.
171
172 4. SQLParser: only call "OnChanging" event handler when value is different.
173
174 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
175
176 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
177 that BindFields is called when the query is next activated. Avoids FieldName
178 not found error.
179
180 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
181 purpose and allows the programmer to define any action they want for Update, Insert
182 or Delete. This may be complex SQL (similar to a Trigger), application specific
183 filtering of updates, or use of statements such as Grant or Revoke instead of
184 normal DML. See User Manual for more information.
185
186 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
187
188 1. TIBEvents: Fix uninitialised variable that could result in lost events.
189
190 2. TIBExtract: Added support for FB3 "USAGE" privilege.
191
192 3. TIBExtract: data formatted as Charset set "octets" is now output using
193 hexadecimal notation.
194
195 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
196 using a simple XML format.
197
198 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
199 grants to these objects.
200
201 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
202 dependency problems restoring complex databases.
203
204 7. TIBXScript: This component has been restructured to allow for the processing of
205 embedded XML in INSERT statements and to support interactive sources in addition
206 to non-interactive data sources such as files.
207
208 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
209
210 9. TIBXScript: ISQL compatiable Set statements are now supported:
211 SET SQL DIALECT
212 SET TERM
213 SET AUTODDL
214 SET BAIL
215 SET ECHO
216 SET COUNT
217 SET STATS
218 SET NAMES <character set>
219
220 10. IBVersion unit added to hold current IBX Version Number information.
221
222 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
223 and domain definitions.
224
225 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
226 fully supported.
227
228 13. TIBExtract: when a database dump includes data, the generator values are now also set.
229
230 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
231
232 IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
233
234 See also doc/IBX4LazarusGuide.pdf for important information on
235 upgrading to IBX2.
236
237 1. Size property of TIBStringField is now the width in characters of the field
238 and not the byte length. This applies only to multi-byte character sets such
239 as UTF8. The original approach aligned with TStringField. However, the TStringField
240 code is not recognised as a bug and hence this change to align the behaviour.
241 The TStringField change is expected in fpc 3.2.0.
242
243 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
244 true (default) then Size property value saved in the lfm is ignored. Size is
245 always set from the dynamic information read from the database. It is unclear
246 why anyone would want to override this and set Size to false.
247
248 3. ibxscript: should now handle correctly a Case..End statement within a procedure
249 block.
250
251 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
252 exist when an attempt is made to connect to it (run time only) then an attempt
253 is made to create the database.
254
255 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
256 has been successfully created as a result of a call to CreateDatabase or when
257 creating a database after it was found not to exist.
258
259 6. DBControlGrid: a race condition could result in the wrong row image being
260 written to the cache. This has been avoided by a trip round the message
261 loop before rendering the row image.
262
263 7. DBControlGrid: It is strongly recommended not to open the source DataSet for
264 a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
265 known to risk corrupt rendering of row images when the control is first
266 displayed. If necessary use "Application.QueueAsyncCall" to delay opening
267 of the dataset (see DBControlGrid examples) until the Form's Window has been created.
268
269 8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
270 a TDateEdit control located on an editor panel.
271
272 9. TIBExtract: brought up-to-date plus many bug fixes.
273
274 10. DBControlGrid: Removed memory leak when updating rows.
275
276 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
277
278 IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
279
280 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
281 when target codepage is CP_NONE. This is a workaround for
282 http://bugs.freepascal.org/view.php?id=30622.
283
284 2. DBLog option removed from TIBStatisticalService - not supported by server
285 since Firebird 1.5.
286
287 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
288 similar.
289
290 4. IBCodePage: updated mapping between codepages and character id.
291
292 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
293 Firebird. Character sets with a char width of two are not UTF16.
294
295 6. Strings received from the database are now always transliterated into UTF8
296 regardless of the database character set or connection character set. This
297 is for compatibility with the LCL.
298
299 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
300
301 1. IBBlob: Defer reading of blob until read method called. This avoids having to
302 read in an entire blob just to get the size of the blob. General performance
303 improvement when opening datasets containing blobs.
304
305 2. Clearing a Blob now sets the corresponding field's modified flag.
306
307 3. IBLookupCombo: When not performing auto-complete, original query sort order
308 is now used.
309
310 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
311 determined.
312
313 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
314
315 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
316 lazarus 1.6.0
317
318 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
319 compilation error.
320
321 IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
322
323 1. No character set specified for connection: when a text blob is retrieved, the
324 character set is determined by looking up the native character set using then
325 Firebird API. Otherwise a text mode blob is assumed to have the same character
326 set as the connection.
327
328 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
329 for Login Dialog returing a change to the database path.
330
331 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
332 to be changed from that given in the TIBDatabase/TIBServer component and for the
333 entered value to be saved on a project specific basis (design time only).
334
335 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
336 column fieldname. If they are the same then it is acts as a look up for the KeyValue
337 Otherwise, it sets the column text to the selected ListField Value.
338
339 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
340 column width.
341
342 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
343 and a case insensitive search is requested.
344
345 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
346 or column ListSource.
347
348 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
349 unprepare) when closing and the text has not changed.
350
351 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
352 Less likely to cause a cursor re-use error on Windows.
353
354 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
355 Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
356
357 11. TIBTreeView: Guard against nil destination on record changed
358
359 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
360 string type with the code page set to reflect the returned field encoding after
361 Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
362 earlier versions.
363
364 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
365 will now result in transliteration to the code page specified for the Firebird driver
366 if the assigned string has a different code page. FPC 3.0.0 onwards only.
367
368 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
369 is ignored and the lc_ctype value, when the database is opened, is set to align with
370 the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
371 platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
372 3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
373 the GETACP is used to determine the Windows code page.
374
375 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
376 name used as the lc_ctype when the database was opened. Only valid while the
377 Database is connected.
378
379 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
380 id that corresponds to the DefaultCharSetName.
381
382 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
383
384 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
385 path is given and database attach fails due to access permission issues on the
386 temp directory or security database, then the attach is retried with "localhost:"
387 prefixing the databasename. This should avoid problems when the database has to
388 be accessed by a local (e.g. classic) server and libfbembed is used.
389
390 2. Windows: revised search order for Firebird DLL:
391 i. The Firebird Embedded Server in the application Directory.
392 ii. If the FIREBIRD environment variable is set then the directory this
393 points to is searched for the FB Client DLL and then then underlying
394 "bin" directory.
395 iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
396 is used to locate the Firebird installation directory and the underlying
397 "bin" directory is searched for the FB Client DLL.
398 iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
399 are searched for the FB Client DLL.
400 v. The PATH Environment variable is used to search for the FB Client DLL.
401 vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
402
403 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
404 See doc/readme.scriptengine and example applications.
405
406 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
407 simplify the use of the embedded firebird server on both Linux and Windows platforms.
408 See dpc/readme.localdatabase and example applications.
409
410 5. IBDynamicGrid: Reordering on column header click should now also work for
411 dynamic columns.
412
413 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
414 between incrementing/decrementing the lock count and signalling the event.
415
416 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
417
418 1.3.2 was never formally released and only made available as beta copies.
419
420 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
421
422 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
423
424 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
425
426 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
427 i.e. when it is a calculated field
428
429 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
430 This problem was due to a race condition between recalculating row heights and
431 determining which row was selected by the mouse click. The row height calculation
432 is now deferred by an extra trip round the message loop allowing the row to
433 be always calculated on the current grid layout rather than risking it being
434 calculated on the grid layout after the expanded row has been shrunk.
435
436 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
437 Windows.
438
439 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
440 These properties allow the (Firebird) character set name for the field and the max number of bytes per character
441 to be determined at runtime. See doc/readme.charactersets.html.
442
443 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
444 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
445
446 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
447 TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
448 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
449
450 Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
451 from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
452 implies no truncation.
453
454 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
455
456 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
457 (avoids "Not in Edit Mode" error).
458
459 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
460
461 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
462 DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
463
464 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
465
466 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
467
468 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
469
470 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
471
472 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
473
474 1. OnCloseUp Event Handler added to TDBLookupProperties
475
476 2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
477 problem with row size when exception is called.
478
479 3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
480
481 4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
482 in a TCustomComboBox and ignores return key if in a TCustomMemo
483
484 5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
485 keyed in i.e. when autocomplete not performed
486
487 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
488 console mode applications with all LCL required functions (builtin dialogs and
489 cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
490 not included in your project, IBX should compile and link with a console mode program.
491 See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
492 console mode application or the IDE will automatically assume that your
493 application is GUI based. Instead, you should include the ibexpressconsolemode package.
494
495 IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
496 to use the built in dialogs and cursor management. IBDialogs is
497 included by default if "ibexpress" is in your project source's "uses" clause.
498 This should be the case for all projects created through the IDE. This is why
499 you do not want to add the ibexpress package to console mode applications. The
500 ibexpressconsolemode package has been created to allow console mode programs
501 to avoid adding LCL dependencies when using IBX, while still having the
502 unit search paths set up correctly.
503
504 Existing users should check to ensure that the "ibexpress" unit is included in
505 each project's source file (*.lpr).
506
507 You may find that in order for the IDE to recognise that ibexpressconsolemode
508 exists, you have to first open the package in the IDE and then close it. This
509 adds it to the most recently accessed packages list. To make it permanently
510 available, add the package name to lazarus' staticpackages.inc file.
511
512 Thanks to Julio Jiménez for suggesting support of console mode.
513
514 7. SQL Parser can now accept quoted strings that include new lines
515
516 8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
517 of text on start of edit. This is particularly useful when tabbing to a
518 column and then inserting text.
519
520 9. New Examples provided for IB Services and ISQLMonitor.
521
522 10. Fix error when writing to blob streams that recorded only the last buffer
523 write in the blob stream. In most cases, this did not cause a problem as the
524 IB Blob Stream is written in a single write. However, with the TDBImage, write
525 of a graphic type prefix was lost which caused a problem when the image could
526 not be automatically recognised.
527
528 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
529 already open" errors due to random numbers used for the cursor name being identical.
530
531 12. IBTable: corrected error that could result in an "Index out of bounds" error
532 when opening the table and the Primary Key is the last or only column in the
533 table. Thanks to Rick Hoover for the fix.
534
535 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
536 of "UTF-8", and update list of available database character sets. Existing
537 users should check the current lc_ctype setting in their applications.
538
539 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
540
541 1. Firebird Services: avoid List Index error when opening a service with an
542 empty Params property.
543
544 2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
545 Link now set up in Loaded method - avoids occasional failure to apply
546 SQL markup on initial open.
547
548 3. "Employees" example performance improvements when scrolling.
549
550 4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
551 TFrame. Force recaching of selected frame to avoid GTK race (results in a
552 random image cached).
553
554 5. DBControlGrid: Should now react to changes in panel height at run time.
555
556 6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
557 even when further rows exist.
558
559 7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
560 always be derived from panel height and setting this property can cause confusion.
561 Note for existing projects: to avoid a missing property error at run time,
562 each form using the DBControlGrid must be opened, updated and saved in the IDE
563 in order to remove the property value from the lfm.
564
565
566 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
567
568 1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
569 call Prepare before setting parameter values.
570
571 2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
572
573 3. Code tidyup and more robust handling of dsql information result vector.
574
575 4. Support for centralised handling of transaction status changes. TIBTransaction
576 has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
577 and "AfterExecQuery". The first three are called after the same event is called
578 for an IBCustomDataSet descendent using the Transaction. The fourth is called
579 after a call to TIBSQL.ExecQuery, again using this transaction. These new events
580 enable monitoring of transaction status changes for a given transaction to be
581 handled in a single place. For example, when a change to the dataset occurs
582 an indicator can be set that shows the user that in order to save changes,
583 the transaction should be committed. Rather than doing this per dataset, this
584 can now be done per transaction.
585
586 5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
587 the dataset is scrolled. However, any changes to the current row are, by default,
588 discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
589 have a new property "DataSetCloseAction" that adds automatic posting of changes
590 on dataset close. If this property is set to dcDiscardChanges (default) then the
591 behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
592 then IBX will attempt to post any unsaved changes before the dataset is closed
593 (and after the BeforeClose event handler is called). The exception is when the
594 dataset is being closed as a result of a transaction rollback. In this case,
595 no action is taken and any unsaved changes are discarded. This avoids both
596 unnecessary overhead and the risk that a validation error may occur in the Post
597 raising an exception and thereby preventing a rollback.
598
599 6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
600 In earlier versions, the Display Width was set to the maximum byte width rather than the character
601 width. Display Widths are now corrected by dividing by the max byte width per character.
602 For UTF8 character sets, the byte width is four and hence the Display Width will be
603 the byte width divided by 4. The byte width of each character set is determined
604 dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
605 system table. (see also http://bugs.freepascal.org/view.php?id=27766).
606
607 7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
608
609 8. IBLookupComboEditBox: List should now always be restored to full list when the
610 control loses focus. Default Key press default interval reduced to 200ms.
611
612 9. DBControlGrid: Ensure that selection is changed to newly appended row, even
613 when dataset rows are less than visible rows.
614
615 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
616 does not exist or DataSet is empty. More responsive on dataset open. New event
617 OnRestorePosition. Column sort disabled if no header row.
618
619 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
620 while dataset state is dsInsert. Avoids posting errors.
621
622 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
623 avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
624
625 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
626
627 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
628 to solve a specific problem. That is when the dataset cursor is moved (e.g. by
629 a grid mouse click and the current row is being edited or inserted. In this case, TDataset
630 always "posts" the current record regardless or whether or not it may be more appropriate
631 to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
632 "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
633 as the first action of the "Post" method and allows the handler to convert the Post
634 into a Cancel if that is the appropriate action on moving to a different row. This is
635 achieved by returning with "CancelPost" argument set to true. Note that an exception could be
636 raised here, but it may still be more appropriate to validate a post and signal
637 a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
638
639 15. On Unix derived systems, the Firebird library name can now be given as a colon
640 separated list. Each library name on the list is tried in turn, in left to right
641 order with the first found being used as the firebird library. By default, on Linux,
642 the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
643 overidden by the FBLIB environment variable or the OnGetLibraryName function.
644
645 Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
646 then it will still attempt to access the database via the Firebird Server and will
647 require a username and password. If only the pathname is given, then the username
648 and password should be omitted and the unix file permissions are used to grant
649 access.
650
651 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
652
653 1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
654 rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
655 that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
656 corresponds to a row of the linked DataSource. Any data aware control on the
657 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
658
659 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
660 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
661 takes place during database access. This may be useful when there are performance issues with
662 the change of cursor. Setting the property to false suppresses the change of cursor.
663
664 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
665 and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
666 Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
667 making all changes permanent immediately rather than when the transaction is explicitly
668 committed.
669
670 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
671 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
672
673 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
674
675 Development version only.
676
677 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
678
679 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
680 This is typically used during an "OnBeforeOpen" event handler to manipulate the
681 "Where" and "Having" clauses to implement user specified filters of arbitrary
682 complexity.
683
684 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
685 three new data aware controls dependent on IBX and which make use of the SQL Parser.
686 These are:
687
688 - TIBLookupComboEditBox
689 - TIBDynamicGrid
690 - TIBTreeview
691
692 TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
693 of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
694 to revise the available list and restrict it to items that are prefixed by the
695 typed text (either case sensitive or case insensitive). Autoinsert allows a
696 newly typed entry to be added to the list dataset and included in the available
697 list items.
698
699 TIBDynamicGrid is a TDBGrid descendent that provides for:
700 - automatic resizing of selected columns to fill the available row length
701 - automatic positioning and sizing of a "totals" control, typically at the
702 column footer, on a per column basis.
703 - DataSet resorting on header row click, sorting the dataset by the selected column.
704 A second click on the same header cell reversed the sort order.
705 - Support for a "Panel Editor". That is on clicking the indicator column, the row
706 is automatically expanded and a panel superimposed on it. The panel can have any
707 number of child controls, typically data aware controls with the same datasource
708 as the grid allowing for editing of additional fields and more complex editors.
709 - Reselection of the same row following resorting.
710 - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
711 Its properties are specified on a per column basis and allows for one or more
712 columns to have their values selected from a list provided by a dataset.
713 Autocomplete and autoinsert are also available. The existing picklist editor
714 is unaffected by the extension.
715
716 TIBTreeView is a data aware TCustomTreeView.
717
718 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
719 zero scale will no longer return an error. An Int64 will be returned instead.
720
721 4. TIBTransaction now has events for Before and After Transaction End and a new function
722 "GetEndAction" allowing the EndAction to be accessed by these event handlers.
723
724 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
725 repeated multiple times.
726
727 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
728 check used to get in the way of using Stored Procedures, and "Update or Insert"
729 statements.
730
731 7. Insert, Modify and Delete property Editors now support Query Generation from
732 Stored Procedures.
733
734 8. Three new examples illustrate the use of the new IB Controls
735
736
737 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
738
739 1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
740 setting performance. See "readme.field+param.names in the doc folder.(Thanks to
741 Gabor Boros for reporting this problem and for testing the improvements).
742
743 2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
744 See readme.field+param.names in the doc folder.
745
746 3. IBX SQL Editors will now automatically add double quotes around column names when the database
747 dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
748
749 4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
750
751 5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
752 actions.
753
754 6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
755 thanks to Yuriy Kopnin for pointing this out).
756
757 7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
758
759 8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
760 for both fields and parameter setting.
761
762 9. Changes to the Select SQL in an IBCustomDataset descendent should now be
763 visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
764
765 10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
766 when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
767
768 11. TIBTable now has a property editor for "MasterFields"
769
770 12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
771 GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
772
773 13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
774 of settings is unrecognised. Selecting this radio button has no effect on the settings.
775
776
777 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
778
779 1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
780
781 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
782
783 1. In a TIBCustomDataset descendent, a generator now only sets the value when
784 it is null. This allows for alternative user defined setting of the generator
785
786 Many thanks to Julio Jiménez for this fix
787
788 2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
789 and suggests that the user may have forgotten to install it.
790
791 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
792
793 1. Conditional compilation used to limit registration of TIntegerField to
794 Lazarus versions less than 1.1
795
796 2. When a database connection is created, character set is now by default set
797 to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
798 1250 to 1254.
799
800
801 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
802
803 1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
804
805
806 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
807
808 1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
809 Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
810
811 2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
812 package is changed to do this (which it should do).
813
814 IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
815
816 1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
817
818 2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
819
820 3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
821
822 4. Property editors should now correctly resize.
823
824 5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
825 (restored original functionality)
826
827 6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
828 library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.