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Revision 17 by tony, Sat Dec 28 19:22:24 2013 UTC vs.
Revision 105 by tony, Thu Jan 18 14:37:32 2018 UTC

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

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