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Revision: 141
Committed: Thu Jan 25 14:18:12 2018 UTC (6 years, 2 months ago) by tony
File size: 43595 byte(s)
Log Message:
Fixes Merged

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# Content
1 IBX Change Log version (2.2-0) Thu, 25 Jan 2018 13:56:39 +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 21. Property Editors now automatically include System Tables when opened and when the query table
93 is a System Table.
94
95 22. FB3UserManager example added to illustrate use if IBX for managing user logins, passwords
96 and connections using IBX and with single or multiple security databases.
97
98
99 IBX Change Log version (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
100
101 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
102 changes.
103
104 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
105 Bug could result in truncated multi-byte character set values.
106
107 3. Changes consequential on moving fbintf character set utility functions from
108 IFirebirdAPI to IAttachment.
109
110 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
111
112 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
113 results in autocomplete ignoring prefix text.
114
115 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
116 entering a new name into the text box.
117
118 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
119 Firebird rather than recomputing it.
120
121 8. Property Editor positioning tidy up: All IBX Property editors should now be
122 screen centre. Previously some were "poDesigned" which may be inappropriate
123 for multi monitor desktops.
124
125 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
126
127 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
128 a transaction and always reset the object.
129
130 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
131
132 13. TIBXScript: Allow for override of database filename in Create Database statements.
133
134 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
135 to a gbak format archive.
136
137 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
138
139 16. IBLocaldb: Drop database if error creating an empty database.
140
141 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
142 unless selected node not in current dataset.
143
144 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
145 to TIBCustomService, and IBlocalDB code tidy up.
146
147 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
148 behaviour due to uninitialised variable.
149
150 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
151 integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
152
153 21. IBSQL: When Database changed ensure that all resources are freed.
154
155 22. IBCustomDataset: When database changed ensure that queries an unprepared.
156
157 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
158 * Line Wrap on SQL Token boundaries (on user command)
159 * auto-complete table names in drop down list of table names
160 * Double click on tablename or field name adds to SQL text
161
162 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
163
164 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
165 TVariantArray. Seems to avoid memory corruption in Windows (probably a
166 workaround for a problem in fpc 3.0.4 win64).
167
168 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
169
170 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
171
172 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
173
174 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
175 include remote system name.
176
177 2. TIBExtract: No longer include comment header and COMMIT statement for empty
178 tables when data included in output.
179
180 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
181 and timing information to be written to stdout. This may be used to locate
182 performance bottlenecks.
183
184 4. SQLParser: only call "OnChanging" event handler when value is different.
185
186 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
187
188 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
189 that BindFields is called when the query is next activated. Avoids FieldName
190 not found error.
191
192 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
193 purpose and allows the programmer to define any action they want for Update, Insert
194 or Delete. This may be complex SQL (similar to a Trigger), application specific
195 filtering of updates, or use of statements such as Grant or Revoke instead of
196 normal DML. See User Manual for more information.
197
198 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
199
200 1. TIBEvents: Fix uninitialised variable that could result in lost events.
201
202 2. TIBExtract: Added support for FB3 "USAGE" privilege.
203
204 3. TIBExtract: data formatted as Charset set "octets" is now output using
205 hexadecimal notation.
206
207 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
208 using a simple XML format.
209
210 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
211 grants to these objects.
212
213 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
214 dependency problems restoring complex databases.
215
216 7. TIBXScript: This component has been restructured to allow for the processing of
217 embedded XML in INSERT statements and to support interactive sources in addition
218 to non-interactive data sources such as files.
219
220 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
221
222 9. TIBXScript: ISQL compatiable Set statements are now supported:
223 SET SQL DIALECT
224 SET TERM
225 SET AUTODDL
226 SET BAIL
227 SET ECHO
228 SET COUNT
229 SET STATS
230 SET NAMES <character set>
231
232 10. IBVersion unit added to hold current IBX Version Number information.
233
234 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
235 and domain definitions.
236
237 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
238 fully supported.
239
240 13. TIBExtract: when a database dump includes data, the generator values are now also set.
241
242 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
243
244 IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
245
246 See also doc/IBX4LazarusGuide.pdf for important information on
247 upgrading to IBX2.
248
249 1. Size property of TIBStringField is now the width in characters of the field
250 and not the byte length. This applies only to multi-byte character sets such
251 as UTF8. The original approach aligned with TStringField. However, the TStringField
252 code is not recognised as a bug and hence this change to align the behaviour.
253 The TStringField change is expected in fpc 3.2.0.
254
255 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
256 true (default) then Size property value saved in the lfm is ignored. Size is
257 always set from the dynamic information read from the database. It is unclear
258 why anyone would want to override this and set Size to false.
259
260 3. ibxscript: should now handle correctly a Case..End statement within a procedure
261 block.
262
263 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
264 exist when an attempt is made to connect to it (run time only) then an attempt
265 is made to create the database.
266
267 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
268 has been successfully created as a result of a call to CreateDatabase or when
269 creating a database after it was found not to exist.
270
271 6. DBControlGrid: a race condition could result in the wrong row image being
272 written to the cache. This has been avoided by a trip round the message
273 loop before rendering the row image.
274
275 7. DBControlGrid: It is strongly recommended not to open the source DataSet for
276 a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
277 known to risk corrupt rendering of row images when the control is first
278 displayed. If necessary use "Application.QueueAsyncCall" to delay opening
279 of the dataset (see DBControlGrid examples) until the Form's Window has been created.
280
281 8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
282 a TDateEdit control located on an editor panel.
283
284 9. TIBExtract: brought up-to-date plus many bug fixes.
285
286 10. DBControlGrid: Removed memory leak when updating rows.
287
288 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
289
290 IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
291
292 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
293 when target codepage is CP_NONE. This is a workaround for
294 http://bugs.freepascal.org/view.php?id=30622.
295
296 2. DBLog option removed from TIBStatisticalService - not supported by server
297 since Firebird 1.5.
298
299 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
300 similar.
301
302 4. IBCodePage: updated mapping between codepages and character id.
303
304 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
305 Firebird. Character sets with a char width of two are not UTF16.
306
307 6. Strings received from the database are now always transliterated into UTF8
308 regardless of the database character set or connection character set. This
309 is for compatibility with the LCL.
310
311 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
312
313 1. IBBlob: Defer reading of blob until read method called. This avoids having to
314 read in an entire blob just to get the size of the blob. General performance
315 improvement when opening datasets containing blobs.
316
317 2. Clearing a Blob now sets the corresponding field's modified flag.
318
319 3. IBLookupCombo: When not performing auto-complete, original query sort order
320 is now used.
321
322 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
323 determined.
324
325 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
326
327 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
328 lazarus 1.6.0
329
330 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
331 compilation error.
332
333 IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
334
335 1. No character set specified for connection: when a text blob is retrieved, the
336 character set is determined by looking up the native character set using then
337 Firebird API. Otherwise a text mode blob is assumed to have the same character
338 set as the connection.
339
340 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
341 for Login Dialog returing a change to the database path.
342
343 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
344 to be changed from that given in the TIBDatabase/TIBServer component and for the
345 entered value to be saved on a project specific basis (design time only).
346
347 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
348 column fieldname. If they are the same then it is acts as a look up for the KeyValue
349 Otherwise, it sets the column text to the selected ListField Value.
350
351 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
352 column width.
353
354 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
355 and a case insensitive search is requested.
356
357 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
358 or column ListSource.
359
360 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
361 unprepare) when closing and the text has not changed.
362
363 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
364 Less likely to cause a cursor re-use error on Windows.
365
366 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
367 Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
368
369 11. TIBTreeView: Guard against nil destination on record changed
370
371 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
372 string type with the code page set to reflect the returned field encoding after
373 Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
374 earlier versions.
375
376 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
377 will now result in transliteration to the code page specified for the Firebird driver
378 if the assigned string has a different code page. FPC 3.0.0 onwards only.
379
380 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
381 is ignored and the lc_ctype value, when the database is opened, is set to align with
382 the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
383 platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
384 3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
385 the GETACP is used to determine the Windows code page.
386
387 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
388 name used as the lc_ctype when the database was opened. Only valid while the
389 Database is connected.
390
391 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
392 id that corresponds to the DefaultCharSetName.
393
394 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
395
396 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
397 path is given and database attach fails due to access permission issues on the
398 temp directory or security database, then the attach is retried with "localhost:"
399 prefixing the databasename. This should avoid problems when the database has to
400 be accessed by a local (e.g. classic) server and libfbembed is used.
401
402 2. Windows: revised search order for Firebird DLL:
403 i. The Firebird Embedded Server in the application Directory.
404 ii. If the FIREBIRD environment variable is set then the directory this
405 points to is searched for the FB Client DLL and then then underlying
406 "bin" directory.
407 iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
408 is used to locate the Firebird installation directory and the underlying
409 "bin" directory is searched for the FB Client DLL.
410 iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
411 are searched for the FB Client DLL.
412 v. The PATH Environment variable is used to search for the FB Client DLL.
413 vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
414
415 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
416 See doc/readme.scriptengine and example applications.
417
418 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
419 simplify the use of the embedded firebird server on both Linux and Windows platforms.
420 See dpc/readme.localdatabase and example applications.
421
422 5. IBDynamicGrid: Reordering on column header click should now also work for
423 dynamic columns.
424
425 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
426 between incrementing/decrementing the lock count and signalling the event.
427
428 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
429
430 1.3.2 was never formally released and only made available as beta copies.
431
432 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
433
434 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
435
436 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
437
438 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
439 i.e. when it is a calculated field
440
441 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
442 This problem was due to a race condition between recalculating row heights and
443 determining which row was selected by the mouse click. The row height calculation
444 is now deferred by an extra trip round the message loop allowing the row to
445 be always calculated on the current grid layout rather than risking it being
446 calculated on the grid layout after the expanded row has been shrunk.
447
448 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
449 Windows.
450
451 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
452 These properties allow the (Firebird) character set name for the field and the max number of bytes per character
453 to be determined at runtime. See doc/readme.charactersets.html.
454
455 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
456 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
457
458 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
459 TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
460 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
461
462 Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
463 from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
464 implies no truncation.
465
466 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
467
468 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
469 (avoids "Not in Edit Mode" error).
470
471 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
472
473 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
474 DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
475
476 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
477
478 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
479
480 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
481
482 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
483
484 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
485
486 1. OnCloseUp Event Handler added to TDBLookupProperties
487
488 2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
489 problem with row size when exception is called.
490
491 3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
492
493 4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
494 in a TCustomComboBox and ignores return key if in a TCustomMemo
495
496 5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
497 keyed in i.e. when autocomplete not performed
498
499 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
500 console mode applications with all LCL required functions (builtin dialogs and
501 cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
502 not included in your project, IBX should compile and link with a console mode program.
503 See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
504 console mode application or the IDE will automatically assume that your
505 application is GUI based. Instead, you should include the ibexpressconsolemode package.
506
507 IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
508 to use the built in dialogs and cursor management. IBDialogs is
509 included by default if "ibexpress" is in your project source's "uses" clause.
510 This should be the case for all projects created through the IDE. This is why
511 you do not want to add the ibexpress package to console mode applications. The
512 ibexpressconsolemode package has been created to allow console mode programs
513 to avoid adding LCL dependencies when using IBX, while still having the
514 unit search paths set up correctly.
515
516 Existing users should check to ensure that the "ibexpress" unit is included in
517 each project's source file (*.lpr).
518
519 You may find that in order for the IDE to recognise that ibexpressconsolemode
520 exists, you have to first open the package in the IDE and then close it. This
521 adds it to the most recently accessed packages list. To make it permanently
522 available, add the package name to lazarus' staticpackages.inc file.
523
524 Thanks to Julio Jiménez for suggesting support of console mode.
525
526 7. SQL Parser can now accept quoted strings that include new lines
527
528 8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
529 of text on start of edit. This is particularly useful when tabbing to a
530 column and then inserting text.
531
532 9. New Examples provided for IB Services and ISQLMonitor.
533
534 10. Fix error when writing to blob streams that recorded only the last buffer
535 write in the blob stream. In most cases, this did not cause a problem as the
536 IB Blob Stream is written in a single write. However, with the TDBImage, write
537 of a graphic type prefix was lost which caused a problem when the image could
538 not be automatically recognised.
539
540 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
541 already open" errors due to random numbers used for the cursor name being identical.
542
543 12. IBTable: corrected error that could result in an "Index out of bounds" error
544 when opening the table and the Primary Key is the last or only column in the
545 table. Thanks to Rick Hoover for the fix.
546
547 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
548 of "UTF-8", and update list of available database character sets. Existing
549 users should check the current lc_ctype setting in their applications.
550
551 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
552
553 1. Firebird Services: avoid List Index error when opening a service with an
554 empty Params property.
555
556 2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
557 Link now set up in Loaded method - avoids occasional failure to apply
558 SQL markup on initial open.
559
560 3. "Employees" example performance improvements when scrolling.
561
562 4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
563 TFrame. Force recaching of selected frame to avoid GTK race (results in a
564 random image cached).
565
566 5. DBControlGrid: Should now react to changes in panel height at run time.
567
568 6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
569 even when further rows exist.
570
571 7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
572 always be derived from panel height and setting this property can cause confusion.
573 Note for existing projects: to avoid a missing property error at run time,
574 each form using the DBControlGrid must be opened, updated and saved in the IDE
575 in order to remove the property value from the lfm.
576
577
578 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
579
580 1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
581 call Prepare before setting parameter values.
582
583 2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
584
585 3. Code tidyup and more robust handling of dsql information result vector.
586
587 4. Support for centralised handling of transaction status changes. TIBTransaction
588 has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
589 and "AfterExecQuery". The first three are called after the same event is called
590 for an IBCustomDataSet descendent using the Transaction. The fourth is called
591 after a call to TIBSQL.ExecQuery, again using this transaction. These new events
592 enable monitoring of transaction status changes for a given transaction to be
593 handled in a single place. For example, when a change to the dataset occurs
594 an indicator can be set that shows the user that in order to save changes,
595 the transaction should be committed. Rather than doing this per dataset, this
596 can now be done per transaction.
597
598 5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
599 the dataset is scrolled. However, any changes to the current row are, by default,
600 discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
601 have a new property "DataSetCloseAction" that adds automatic posting of changes
602 on dataset close. If this property is set to dcDiscardChanges (default) then the
603 behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
604 then IBX will attempt to post any unsaved changes before the dataset is closed
605 (and after the BeforeClose event handler is called). The exception is when the
606 dataset is being closed as a result of a transaction rollback. In this case,
607 no action is taken and any unsaved changes are discarded. This avoids both
608 unnecessary overhead and the risk that a validation error may occur in the Post
609 raising an exception and thereby preventing a rollback.
610
611 6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
612 In earlier versions, the Display Width was set to the maximum byte width rather than the character
613 width. Display Widths are now corrected by dividing by the max byte width per character.
614 For UTF8 character sets, the byte width is four and hence the Display Width will be
615 the byte width divided by 4. The byte width of each character set is determined
616 dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
617 system table. (see also http://bugs.freepascal.org/view.php?id=27766).
618
619 7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
620
621 8. IBLookupComboEditBox: List should now always be restored to full list when the
622 control loses focus. Default Key press default interval reduced to 200ms.
623
624 9. DBControlGrid: Ensure that selection is changed to newly appended row, even
625 when dataset rows are less than visible rows.
626
627 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
628 does not exist or DataSet is empty. More responsive on dataset open. New event
629 OnRestorePosition. Column sort disabled if no header row.
630
631 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
632 while dataset state is dsInsert. Avoids posting errors.
633
634 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
635 avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
636
637 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
638
639 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
640 to solve a specific problem. That is when the dataset cursor is moved (e.g. by
641 a grid mouse click and the current row is being edited or inserted. In this case, TDataset
642 always "posts" the current record regardless or whether or not it may be more appropriate
643 to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
644 "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
645 as the first action of the "Post" method and allows the handler to convert the Post
646 into a Cancel if that is the appropriate action on moving to a different row. This is
647 achieved by returning with "CancelPost" argument set to true. Note that an exception could be
648 raised here, but it may still be more appropriate to validate a post and signal
649 a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
650
651 15. On Unix derived systems, the Firebird library name can now be given as a colon
652 separated list. Each library name on the list is tried in turn, in left to right
653 order with the first found being used as the firebird library. By default, on Linux,
654 the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
655 overidden by the FBLIB environment variable or the OnGetLibraryName function.
656
657 Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
658 then it will still attempt to access the database via the Firebird Server and will
659 require a username and password. If only the pathname is given, then the username
660 and password should be omitted and the unix file permissions are used to grant
661 access.
662
663 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
664
665 1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
666 rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
667 that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
668 corresponds to a row of the linked DataSource. Any data aware control on the
669 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
670
671 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
672 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
673 takes place during database access. This may be useful when there are performance issues with
674 the change of cursor. Setting the property to false suppresses the change of cursor.
675
676 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
677 and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
678 Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
679 making all changes permanent immediately rather than when the transaction is explicitly
680 committed.
681
682 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
683 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
684
685 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
686
687 Development version only.
688
689 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
690
691 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
692 This is typically used during an "OnBeforeOpen" event handler to manipulate the
693 "Where" and "Having" clauses to implement user specified filters of arbitrary
694 complexity.
695
696 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
697 three new data aware controls dependent on IBX and which make use of the SQL Parser.
698 These are:
699
700 - TIBLookupComboEditBox
701 - TIBDynamicGrid
702 - TIBTreeview
703
704 TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
705 of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
706 to revise the available list and restrict it to items that are prefixed by the
707 typed text (either case sensitive or case insensitive). Autoinsert allows a
708 newly typed entry to be added to the list dataset and included in the available
709 list items.
710
711 TIBDynamicGrid is a TDBGrid descendent that provides for:
712 - automatic resizing of selected columns to fill the available row length
713 - automatic positioning and sizing of a "totals" control, typically at the
714 column footer, on a per column basis.
715 - DataSet resorting on header row click, sorting the dataset by the selected column.
716 A second click on the same header cell reversed the sort order.
717 - Support for a "Panel Editor". That is on clicking the indicator column, the row
718 is automatically expanded and a panel superimposed on it. The panel can have any
719 number of child controls, typically data aware controls with the same datasource
720 as the grid allowing for editing of additional fields and more complex editors.
721 - Reselection of the same row following resorting.
722 - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
723 Its properties are specified on a per column basis and allows for one or more
724 columns to have their values selected from a list provided by a dataset.
725 Autocomplete and autoinsert are also available. The existing picklist editor
726 is unaffected by the extension.
727
728 TIBTreeView is a data aware TCustomTreeView.
729
730 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
731 zero scale will no longer return an error. An Int64 will be returned instead.
732
733 4. TIBTransaction now has events for Before and After Transaction End and a new function
734 "GetEndAction" allowing the EndAction to be accessed by these event handlers.
735
736 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
737 repeated multiple times.
738
739 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
740 check used to get in the way of using Stored Procedures, and "Update or Insert"
741 statements.
742
743 7. Insert, Modify and Delete property Editors now support Query Generation from
744 Stored Procedures.
745
746 8. Three new examples illustrate the use of the new IB Controls
747
748
749 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
750
751 1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
752 setting performance. See "readme.field+param.names in the doc folder.(Thanks to
753 Gabor Boros for reporting this problem and for testing the improvements).
754
755 2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
756 See readme.field+param.names in the doc folder.
757
758 3. IBX SQL Editors will now automatically add double quotes around column names when the database
759 dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
760
761 4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
762
763 5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
764 actions.
765
766 6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
767 thanks to Yuriy Kopnin for pointing this out).
768
769 7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
770
771 8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
772 for both fields and parameter setting.
773
774 9. Changes to the Select SQL in an IBCustomDataset descendent should now be
775 visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
776
777 10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
778 when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
779
780 11. TIBTable now has a property editor for "MasterFields"
781
782 12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
783 GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
784
785 13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
786 of settings is unrecognised. Selecting this radio button has no effect on the settings.
787
788
789 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
790
791 1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
792
793 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
794
795 1. In a TIBCustomDataset descendent, a generator now only sets the value when
796 it is null. This allows for alternative user defined setting of the generator
797
798 Many thanks to Julio Jiménez for this fix
799
800 2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
801 and suggests that the user may have forgotten to install it.
802
803 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
804
805 1. Conditional compilation used to limit registration of TIntegerField to
806 Lazarus versions less than 1.1
807
808 2. When a database connection is created, character set is now by default set
809 to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
810 1250 to 1254.
811
812
813 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
814
815 1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
816
817
818 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
819
820 1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
821 Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
822
823 2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
824 package is changed to do this (which it should do).
825
826 IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
827
828 1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
829
830 2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
831
832 3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
833
834 4. Property editors should now correctly resize.
835
836 5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
837 (restored original functionality)
838
839 6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
840 library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.