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Revision 7 by tony, Sun Aug 5 18:28:19 2012 UTC vs.
Revision 80 by tony, Mon Jan 1 11:31:07 2018 UTC

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

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