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Revision: 64
Committed: Thu Jun 29 11:11:22 2017 UTC (6 years, 9 months ago) by tony
File size: 35042 byte(s)
Log Message:
IBLookupComboEditBox: Avoid race condition when autocompleting text that occasionally results in autocomplete ignoring prefix text.

File Contents

# Content
1 IBX Change Log version (2.0.3) tba, 24 Feb 2017 12:17:53 +0000
2
3 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
4 changes.
5
6 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
7 Bug could result in truncated multi-byte character set values.
8
9 3. Changes consequential on moving fbintf character set utility functions from
10 IFirebirdAPI to IAttachment.
11
12 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
13
14 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
15 results in autocomplete ignoring prefix text.
16
17 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
18
19 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
20 include remote system name.
21
22 2. TIBExtract: No longer include comment header and COMMIT statement for empty
23 tables when data included in output.
24
25 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
26 and timing information to be written to stdout. This may be used to locate
27 performance bottlenecks.
28
29 4. SQLParser: only call "OnChanging" event handler when value is different.
30
31 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
32
33 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
34 that BindFields is called when the query is next activated. Avoids FieldName
35 not found error.
36
37 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
38
39 1. TIBEvents: Fix uninitialised variable that could result in lost events.
40
41 2. TIBExtract: Added support for FB3 "USAGE" privilege.
42
43 3. TIBExtract: data formatted as Charset set "octets" is now output using
44 hexadecimal notation.
45
46 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
47 using a simple XML format.
48
49 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
50 grants to these objects.
51
52 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
53 dependency problems restoring complex databases.
54
55 7. TIBXScript: This component has been restructured to allow for the processing of
56 embedded XML in INSERT statements and to support interactive sources in addition
57 to non-interactive data sources such as files.
58
59 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
60
61 9. TIBXScript: ISQL compatiable Set statements are now supported:
62 SET SQL DIALECT
63 SET TERM
64 SET AUTODDL
65 SET BAIL
66 SET ECHO
67 SET COUNT
68 SET STATS
69 SET NAMES <character set>
70
71 10. IBVersion unit added to hold current IBX Version Number information.
72
73 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
74 and domain definitions.
75
76 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
77 fully supported.
78
79 13. TIBExtract: when a database dump includes data, the generator values are now also set.
80
81 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
82
83 IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
84
85 See also doc/IBX4LazarusGuide.pdf for important information on
86 upgrading to IBX2.
87
88 1. Size property of TIBStringField is now the width in characters of the field
89 and not the byte length. This applies only to multi-byte character sets such
90 as UTF8. The original approach aligned with TStringField. However, the TStringField
91 code is not recognised as a bug and hence this change to align the behaviour.
92 The TStringField change is expected in fpc 3.2.0.
93
94 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
95 true (default) then Size property value saved in the lfm is ignored. Size is
96 always set from the dynamic information read from the database. It is unclear
97 why anyone would want to override this and set Size to false.
98
99 3. ibxscript: should now handle correctly a Case..End statement within a procedure
100 block.
101
102 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
103 exist when an attempt is made to connect to it (run time only) then an attempt
104 is made to create the database.
105
106 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
107 has been successfully created as a result of a call to CreateDatabase or when
108 creating a database after it was found not to exist.
109
110 6. DBControlGrid: a race condition could result in the wrong row image being
111 written to the cache. This has been avoided by a trip round the message
112 loop before rendering the row image.
113
114 7. DBControlGrid: It is strongly recommended not to open the source DataSet for
115 a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
116 known to risk corrupt rendering of row images when the control is first
117 displayed. If necessary use "Application.QueueAsyncCall" to delay opening
118 of the dataset (see DBControlGrid examples) until the Form's Window has been created.
119
120 8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
121 a TDateEdit control located on an editor panel.
122
123 9. TIBExtract: brought up-to-date plus many bug fixes.
124
125 10. DBControlGrid: Removed memory leak when updating rows.
126
127 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
128
129 IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
130
131 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
132 when target codepage is CP_NONE. This is a workaround for
133 http://bugs.freepascal.org/view.php?id=30622.
134
135 2. DBLog option removed from TIBStatisticalService - not supported by server
136 since Firebird 1.5.
137
138 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
139 similar.
140
141 4. IBCodePage: updated mapping between codepages and character id.
142
143 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
144 Firebird. Character sets with a char width of two are not UTF16.
145
146 6. Strings received from the database are now always transliterated into UTF8
147 regardless of the database character set or connection character set. This
148 is for compatibility with the LCL.
149
150 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
151
152 1. IBBlob: Defer reading of blob until read method called. This avoids having to
153 read in an entire blob just to get the size of the blob. General performance
154 improvement when opening datasets containing blobs.
155
156 2. Clearing a Blob now sets the corresponding field's modified flag.
157
158 3. IBLookupCombo: When not performing auto-complete, original query sort order
159 is now used.
160
161 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
162 determined.
163
164 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
165
166 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
167 lazarus 1.6.0
168
169 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
170 compilation error.
171
172 IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
173
174 1. No character set specified for connection: when a text blob is retrieved, the
175 character set is determined by looking up the native character set using then
176 Firebird API. Otherwise a text mode blob is assumed to have the same character
177 set as the connection.
178
179 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
180 for Login Dialog returing a change to the database path.
181
182 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
183 to be changed from that given in the TIBDatabase/TIBServer component and for the
184 entered value to be saved on a project specific basis (design time only).
185
186 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
187 column fieldname. If they are the same then it is acts as a look up for the KeyValue
188 Otherwise, it sets the column text to the selected ListField Value.
189
190 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
191 column width.
192
193 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
194 and a case insensitive search is requested.
195
196 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
197 or column ListSource.
198
199 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
200 unprepare) when closing and the text has not changed.
201
202 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
203 Less likely to cause a cursor re-use error on Windows.
204
205 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
206 Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
207
208 11. TIBTreeView: Guard against nil destination on record changed
209
210 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
211 string type with the code page set to reflect the returned field encoding after
212 Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
213 earlier versions.
214
215 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
216 will now result in transliteration to the code page specified for the Firebird driver
217 if the assigned string has a different code page. FPC 3.0.0 onwards only.
218
219 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
220 is ignored and the lc_ctype value, when the database is opened, is set to align with
221 the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
222 platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
223 3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
224 the GETACP is used to determine the Windows code page.
225
226 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
227 name used as the lc_ctype when the database was opened. Only valid while the
228 Database is connected.
229
230 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
231 id that corresponds to the DefaultCharSetName.
232
233 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
234
235 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
236 path is given and database attach fails due to access permission issues on the
237 temp directory or security database, then the attach is retried with "localhost:"
238 prefixing the databasename. This should avoid problems when the database has to
239 be accessed by a local (e.g. classic) server and libfbembed is used.
240
241 2. Windows: revised search order for Firebird DLL:
242 i. The Firebird Embedded Server in the application Directory.
243 ii. If the FIREBIRD environment variable is set then the directory this
244 points to is searched for the FB Client DLL and then then underlying
245 "bin" directory.
246 iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
247 is used to locate the Firebird installation directory and the underlying
248 "bin" directory is searched for the FB Client DLL.
249 iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
250 are searched for the FB Client DLL.
251 v. The PATH Environment variable is used to search for the FB Client DLL.
252 vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
253
254 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
255 See doc/readme.scriptengine and example applications.
256
257 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
258 simplify the use of the embedded firebird server on both Linux and Windows platforms.
259 See dpc/readme.localdatabase and example applications.
260
261 5. IBDynamicGrid: Reordering on column header click should now also work for
262 dynamic columns.
263
264 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
265 between incrementing/decrementing the lock count and signalling the event.
266
267 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
268
269 1.3.2 was never formally released and only made available as beta copies.
270
271 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
272
273 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
274
275 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
276
277 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
278 i.e. when it is a calculated field
279
280 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
281 This problem was due to a race condition between recalculating row heights and
282 determining which row was selected by the mouse click. The row height calculation
283 is now deferred by an extra trip round the message loop allowing the row to
284 be always calculated on the current grid layout rather than risking it being
285 calculated on the grid layout after the expanded row has been shrunk.
286
287 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
288 Windows.
289
290 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
291 These properties allow the (Firebird) character set name for the field and the max number of bytes per character
292 to be determined at runtime. See doc/readme.charactersets.html.
293
294 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
295 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
296
297 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
298 TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
299 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
300
301 Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
302 from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
303 implies no truncation.
304
305 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
306
307 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
308 (avoids "Not in Edit Mode" error).
309
310 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
311
312 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
313 DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
314
315 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
316
317 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
318
319 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
320
321 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
322
323 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
324
325 1. OnCloseUp Event Handler added to TDBLookupProperties
326
327 2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
328 problem with row size when exception is called.
329
330 3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
331
332 4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
333 in a TCustomComboBox and ignores return key if in a TCustomMemo
334
335 5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
336 keyed in i.e. when autocomplete not performed
337
338 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
339 console mode applications with all LCL required functions (builtin dialogs and
340 cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
341 not included in your project, IBX should compile and link with a console mode program.
342 See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
343 console mode application or the IDE will automatically assume that your
344 application is GUI based. Instead, you should include the ibexpressconsolemode package.
345
346 IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
347 to use the built in dialogs and cursor management. IBDialogs is
348 included by default if "ibexpress" is in your project source's "uses" clause.
349 This should be the case for all projects created through the IDE. This is why
350 you do not want to add the ibexpress package to console mode applications. The
351 ibexpressconsolemode package has been created to allow console mode programs
352 to avoid adding LCL dependencies when using IBX, while still having the
353 unit search paths set up correctly.
354
355 Existing users should check to ensure that the "ibexpress" unit is included in
356 each project's source file (*.lpr).
357
358 You may find that in order for the IDE to recognise that ibexpressconsolemode
359 exists, you have to first open the package in the IDE and then close it. This
360 adds it to the most recently accessed packages list. To make it permanently
361 available, add the package name to lazarus' staticpackages.inc file.
362
363 Thanks to Julio Jiménez for suggesting support of console mode.
364
365 7. SQL Parser can now accept quoted strings that include new lines
366
367 8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
368 of text on start of edit. This is particularly useful when tabbing to a
369 column and then inserting text.
370
371 9. New Examples provided for IB Services and ISQLMonitor.
372
373 10. Fix error when writing to blob streams that recorded only the last buffer
374 write in the blob stream. In most cases, this did not cause a problem as the
375 IB Blob Stream is written in a single write. However, with the TDBImage, write
376 of a graphic type prefix was lost which caused a problem when the image could
377 not be automatically recognised.
378
379 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
380 already open" errors due to random numbers used for the cursor name being identical.
381
382 12. IBTable: corrected error that could result in an "Index out of bounds" error
383 when opening the table and the Primary Key is the last or only column in the
384 table. Thanks to Rick Hoover for the fix.
385
386 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
387 of "UTF-8", and update list of available database character sets. Existing
388 users should check the current lc_ctype setting in their applications.
389
390 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
391
392 1. Firebird Services: avoid List Index error when opening a service with an
393 empty Params property.
394
395 2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
396 Link now set up in Loaded method - avoids occasional failure to apply
397 SQL markup on initial open.
398
399 3. "Employees" example performance improvements when scrolling.
400
401 4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
402 TFrame. Force recaching of selected frame to avoid GTK race (results in a
403 random image cached).
404
405 5. DBControlGrid: Should now react to changes in panel height at run time.
406
407 6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
408 even when further rows exist.
409
410 7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
411 always be derived from panel height and setting this property can cause confusion.
412 Note for existing projects: to avoid a missing property error at run time,
413 each form using the DBControlGrid must be opened, updated and saved in the IDE
414 in order to remove the property value from the lfm.
415
416
417 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
418
419 1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
420 call Prepare before setting parameter values.
421
422 2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
423
424 3. Code tidyup and more robust handling of dsql information result vector.
425
426 4. Support for centralised handling of transaction status changes. TIBTransaction
427 has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
428 and "AfterExecQuery". The first three are called after the same event is called
429 for an IBCustomDataSet descendent using the Transaction. The fourth is called
430 after a call to TIBSQL.ExecQuery, again using this transaction. These new events
431 enable monitoring of transaction status changes for a given transaction to be
432 handled in a single place. For example, when a change to the dataset occurs
433 an indicator can be set that shows the user that in order to save changes,
434 the transaction should be committed. Rather than doing this per dataset, this
435 can now be done per transaction.
436
437 5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
438 the dataset is scrolled. However, any changes to the current row are, by default,
439 discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
440 have a new property "DataSetCloseAction" that adds automatic posting of changes
441 on dataset close. If this property is set to dcDiscardChanges (default) then the
442 behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
443 then IBX will attempt to post any unsaved changes before the dataset is closed
444 (and after the BeforeClose event handler is called). The exception is when the
445 dataset is being closed as a result of a transaction rollback. In this case,
446 no action is taken and any unsaved changes are discarded. This avoids both
447 unnecessary overhead and the risk that a validation error may occur in the Post
448 raising an exception and thereby preventing a rollback.
449
450 6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
451 In earlier versions, the Display Width was set to the maximum byte width rather than the character
452 width. Display Widths are now corrected by dividing by the max byte width per character.
453 For UTF8 character sets, the byte width is four and hence the Display Width will be
454 the byte width divided by 4. The byte width of each character set is determined
455 dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
456 system table. (see also http://bugs.freepascal.org/view.php?id=27766).
457
458 7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
459
460 8. IBLookupComboEditBox: List should now always be restored to full list when the
461 control loses focus. Default Key press default interval reduced to 200ms.
462
463 9. DBControlGrid: Ensure that selection is changed to newly appended row, even
464 when dataset rows are less than visible rows.
465
466 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
467 does not exist or DataSet is empty. More responsive on dataset open. New event
468 OnRestorePosition. Column sort disabled if no header row.
469
470 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
471 while dataset state is dsInsert. Avoids posting errors.
472
473 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
474 avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
475
476 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
477
478 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
479 to solve a specific problem. That is when the dataset cursor is moved (e.g. by
480 a grid mouse click and the current row is being edited or inserted. In this case, TDataset
481 always "posts" the current record regardless or whether or not it may be more appropriate
482 to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
483 "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
484 as the first action of the "Post" method and allows the handler to convert the Post
485 into a Cancel if that is the appropriate action on moving to a different row. This is
486 achieved by returning with "CancelPost" argument set to true. Note that an exception could be
487 raised here, but it may still be more appropriate to validate a post and signal
488 a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
489
490 15. On Unix derived systems, the Firebird library name can now be given as a colon
491 separated list. Each library name on the list is tried in turn, in left to right
492 order with the first found being used as the firebird library. By default, on Linux,
493 the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
494 overidden by the FBLIB environment variable or the OnGetLibraryName function.
495
496 Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
497 then it will still attempt to access the database via the Firebird Server and will
498 require a username and password. If only the pathname is given, then the username
499 and password should be omitted and the unix file permissions are used to grant
500 access.
501
502 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
503
504 1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
505 rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
506 that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
507 corresponds to a row of the linked DataSource. Any data aware control on the
508 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
509
510 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
511 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
512 takes place during database access. This may be useful when there are performance issues with
513 the change of cursor. Setting the property to false suppresses the change of cursor.
514
515 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
516 and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
517 Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
518 making all changes permanent immediately rather than when the transaction is explicitly
519 committed.
520
521 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
522 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
523
524 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
525
526 Development version only.
527
528 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
529
530 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
531 This is typically used during an "OnBeforeOpen" event handler to manipulate the
532 "Where" and "Having" clauses to implement user specified filters of arbitrary
533 complexity.
534
535 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
536 three new data aware controls dependent on IBX and which make use of the SQL Parser.
537 These are:
538
539 - TIBLookupComboEditBox
540 - TIBDynamicGrid
541 - TIBTreeview
542
543 TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
544 of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
545 to revise the available list and restrict it to items that are prefixed by the
546 typed text (either case sensitive or case insensitive). Autoinsert allows a
547 newly typed entry to be added to the list dataset and included in the available
548 list items.
549
550 TIBDynamicGrid is a TDBGrid descendent that provides for:
551 - automatic resizing of selected columns to fill the available row length
552 - automatic positioning and sizing of a "totals" control, typically at the
553 column footer, on a per column basis.
554 - DataSet resorting on header row click, sorting the dataset by the selected column.
555 A second click on the same header cell reversed the sort order.
556 - Support for a "Panel Editor". That is on clicking the indicator column, the row
557 is automatically expanded and a panel superimposed on it. The panel can have any
558 number of child controls, typically data aware controls with the same datasource
559 as the grid allowing for editing of additional fields and more complex editors.
560 - Reselection of the same row following resorting.
561 - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
562 Its properties are specified on a per column basis and allows for one or more
563 columns to have their values selected from a list provided by a dataset.
564 Autocomplete and autoinsert are also available. The existing picklist editor
565 is unaffected by the extension.
566
567 TIBTreeView is a data aware TCustomTreeView.
568
569 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
570 zero scale will no longer return an error. An Int64 will be returned instead.
571
572 4. TIBTransaction now has events for Before and After Transaction End and a new function
573 "GetEndAction" allowing the EndAction to be accessed by these event handlers.
574
575 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
576 repeated multiple times.
577
578 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
579 check used to get in the way of using Stored Procedures, and "Update or Insert"
580 statements.
581
582 7. Insert, Modify and Delete property Editors now support Query Generation from
583 Stored Procedures.
584
585 8. Three new examples illustrate the use of the new IB Controls
586
587
588 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
589
590 1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
591 setting performance. See "readme.field+param.names in the doc folder.(Thanks to
592 Gabor Boros for reporting this problem and for testing the improvements).
593
594 2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
595 See readme.field+param.names in the doc folder.
596
597 3. IBX SQL Editors will now automatically add double quotes around column names when the database
598 dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
599
600 4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
601
602 5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
603 actions.
604
605 6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
606 thanks to Yuriy Kopnin for pointing this out).
607
608 7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
609
610 8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
611 for both fields and parameter setting.
612
613 9. Changes to the Select SQL in an IBCustomDataset descendent should now be
614 visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
615
616 10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
617 when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
618
619 11. TIBTable now has a property editor for "MasterFields"
620
621 12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
622 GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
623
624 13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
625 of settings is unrecognised. Selecting this radio button has no effect on the settings.
626
627
628 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
629
630 1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
631
632 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
633
634 1. In a TIBCustomDataset descendent, a generator now only sets the value when
635 it is null. This allows for alternative user defined setting of the generator
636
637 Many thanks to Julio Jiménez for this fix
638
639 2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
640 and suggests that the user may have forgotten to install it.
641
642 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
643
644 1. Conditional compilation used to limit registration of TIntegerField to
645 Lazarus versions less than 1.1
646
647 2. When a database connection is created, character set is now by default set
648 to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
649 1250 to 1254.
650
651
652 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
653
654 1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
655
656
657 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
658
659 1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
660 Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
661
662 2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
663 package is changed to do this (which it should do).
664
665 IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
666
667 1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
668
669 2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
670
671 3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
672
673 4. Property editors should now correctly resize.
674
675 5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
676 (restored original functionality)
677
678 6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
679 library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.