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Revision 17 by tony, Sat Dec 28 19:22:24 2013 UTC vs.
Revision 109 by tony, Thu Jan 18 14:37:48 2018 UTC

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1 + IBX Change Log  version                                     (2.2-0) Tue, 16 Jan 2018 16:49:07 +0000
2 +
3 + 1. IBExtract: Identity columns - add additional check for null column for generator name.
4 +
5 + 2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
6 +   The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
7 +   information). However, this is also a very useful mechanism for returning updated computed by
8 +   column values. Values returned as a result of executing an Insert or Update statement
9 +   replace existing values in the current row for each corresponding column.
10 +
11 +   Previously, if a dataset's select query included read only (computed by) fields then
12 +   an automatic row refresh was performed after an insert or update query had been processed,
13 +   irrespective of the setting of the "ForcedUpdates" property. This has changed such
14 +   that an automatic refresh is no longer performed if an insert or update query contains
15 +   a returning clause that updates one or more fields on the current row. A full row
16 +   refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
17 +   field values and the select query contains read only fields. Use of Insert/update
18 +   returning should be significantly more efficient than excuting a refresh query.
19 +
20 +   This behaviour change is intended to be backwards compatible and there should be no need to change
21 +   existing programs, other than to improve performance by using the new capability.
22 +
23 + 3. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
24 +   any Computed By or Identity Columns. The IBTables example has been updated to
25 +   illustrate the computation of the employee Full Name on update.
26 +
27 + 4. TIBTable: The GeneratorField property is now published.
28 +
29 + 5. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
30 +   When InsertSQL is generated, the Identity columns are not included in the list of values to
31 +   be inserted. A RETURNING clause is added to the insert statement to return the value of
32 +   each Identity column after the insert is executed.
33 +
34 + 6. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
35 +   Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
36 +   Insert..Returning clause.
37 +
38 + 7. TIBGenerator: small performance improvement by not preparing query each time
39 +   a new value is generated.
40 +
41 + 8. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
42 +
43 + 9. Property editors will now sync table name to a System Table when "Include System
44 +   Tables" is selected and the query is for a System Table.
45 +
46 + 10. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
47 +    values are no longer converted to milliseconds from TDateTime and then back again
48 +    to TDateTime (the conversion to milliseconds is the default TDataset approach).
49 +
50 + 11. Property Editors handling of Stored Procedures.
51 +    * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
52 +      which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
53 +      query).
54 +    * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
55 +
56 + 12. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
57 +    can be used to select a package. If non-empty, the stored procedure name is
58 +    expected to be a stored procedure defined in the specified package and the
59 +    generated SQL will be as required for a stored procedure located in a package.
60 +
61 + 13. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
62 +    a "Package Name" drop down box to allow selection of a Firebird 3 Package from
63 +    which a stored procedure can be selected. With no package name selected, non-package
64 +    stored procedures are listed.
65 +
66 + 14. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
67 +    for password on reconnect.
68 +
69 +
70 + IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
71 +
72 + 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
73 +   changes.
74 +
75 + 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
76 +   Bug could result in truncated multi-byte character set values.
77 +
78 + 3. Changes consequential on moving fbintf character set utility functions from
79 +   IFirebirdAPI to IAttachment.
80 +
81 + 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
82 +
83 + 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
84 +   results in autocomplete ignoring prefix text.
85 +
86 + 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
87 +   entering a new name into the text box.
88 +
89 + 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
90 +   Firebird rather than recomputing it.
91 +
92 + 8. Property Editor positioning tidy up: All IBX Property editors should now be
93 +   screen centre. Previously some were "poDesigned" which may be inappropriate
94 +   for multi monitor desktops.
95 +
96 + 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
97 +
98 + 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
99 +    a transaction and always reset the object.
100 +
101 + 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
102 +
103 + 13. TIBXScript: Allow for override of database filename in Create Database statements.
104 +
105 + 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
106 +    to a gbak format archive.
107 +
108 + 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
109 +
110 + 16. IBLocaldb: Drop database if error creating an empty database.
111 +
112 + 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
113 +    unless selected node not in current dataset.
114 +
115 + 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
116 +    to TIBCustomService, and IBlocalDB code tidy up.
117 +
118 + 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
119 +    behaviour due to uninitialised variable.
120 +
121 + 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
122 +    integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
123 +
124 + 21. IBSQL: When Database changed ensure that all resources are freed.
125 +
126 + 22. IBCustomDataset: When database changed ensure that queries an unprepared.
127 +
128 + 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
129 +    * Line Wrap on SQL Token boundaries (on user command)
130 +    * auto-complete table names in drop down list of table names
131 +    * Double click on tablename or field name adds to SQL text
132 +
133 + 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
134 +
135 + 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
136 +    TVariantArray. Seems to avoid memory corruption in Windows (probably a
137 +    workaround for a problem in fpc 3.0.4 win64).
138 +
139 + 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
140 +
141 + 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
142 +
143 + IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
144 +
145 + 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
146 +   include remote system name.
147 +
148 + 2. TIBExtract: No longer include comment header and COMMIT statement for empty
149 +   tables when data included in output.
150 +
151 + 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
152 +   and timing information to be written to stdout. This may be used to locate
153 +   performance bottlenecks.
154 +
155 + 4. SQLParser: only call "OnChanging" event handler when value is different.
156 +
157 + 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
158 +
159 + 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
160 +   that BindFields is called when the query is next activated. Avoids FieldName
161 +   not found error.
162 +
163 + 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
164 +   purpose and allows the programmer to define any action they want for Update, Insert
165 +   or Delete. This may be complex SQL (similar to a Trigger), application specific
166 +   filtering of updates, or use of statements such as Grant or Revoke instead of
167 +   normal DML. See User Manual for more information.
168 +
169 + IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
170 +
171 + 1. TIBEvents: Fix uninitialised variable that could result in lost events.
172 +
173 + 2. TIBExtract: Added support for FB3 "USAGE" privilege.
174 +
175 + 3. TIBExtract: data formatted as Charset set "octets" is now output using
176 +   hexadecimal notation.
177 +
178 + 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
179 +   using a simple XML format.
180 +
181 + 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
182 +   grants to these objects.
183 +
184 + 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
185 +   dependency problems restoring complex databases.
186 +
187 + 7. TIBXScript: This component has been restructured to allow for the processing of
188 +   embedded XML in INSERT statements and to support interactive sources in addition
189 +   to non-interactive data sources such as files.
190 +
191 + 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
192 +
193 + 9. TIBXScript: ISQL compatiable Set statements are now supported:
194 +   SET SQL DIALECT
195 +   SET TERM
196 +   SET AUTODDL
197 +   SET BAIL
198 +   SET ECHO
199 +   SET COUNT
200 +   SET STATS
201 +   SET NAMES <character set>
202 +
203 + 10. IBVersion unit added to hold current IBX Version Number information.
204 +
205 + 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
206 +    and domain definitions.
207 +
208 + 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
209 +    fully supported.
210 +
211 + 13. TIBExtract: when a database dump includes data, the generator values are now also set.
212 +
213 + 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
214 +
215 + IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
216 +
217 + See also doc/IBX4LazarusGuide.pdf for important information on
218 + upgrading to IBX2.
219 +
220 + 1. Size property of TIBStringField is now the width in characters of the field
221 +   and not the byte length. This applies only to multi-byte character sets such
222 +   as UTF8. The original approach aligned with TStringField. However, the TStringField
223 +   code is not recognised as a bug and hence this change to align the behaviour.
224 +   The TStringField change is expected in fpc 3.2.0.
225 +
226 + 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
227 +   true (default) then Size property value saved in the lfm is ignored. Size is
228 +   always set from the dynamic information read from the database. It is unclear
229 +   why anyone would want to override this and set Size to false.
230 +
231 + 3. ibxscript: should now handle correctly a Case..End statement within a procedure
232 +   block.
233 +
234 + 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
235 +   exist when an attempt is made to connect to it (run time only) then an attempt
236 +   is made to create the database.
237 +
238 + 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
239 +   has been successfully created as a result of a call to CreateDatabase or when
240 +   creating a database after it was found not to exist.
241 +
242 + 6.  DBControlGrid: a race condition could result in the wrong row image being
243 +    written to the cache. This has been avoided by a trip round the message
244 +    loop before rendering the row image.
245 +
246 + 7.  DBControlGrid: It is strongly recommended not to open the source DataSet for
247 +    a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
248 +    known to risk corrupt rendering of row images when the control is first
249 +    displayed. If necessary use "Application.QueueAsyncCall" to delay opening
250 +    of the dataset (see DBControlGrid examples) until the Form's Window has been created.
251 +
252 + 8.  DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
253 +    a TDateEdit control located on an editor panel.
254 +
255 + 9.  TIBExtract: brought up-to-date plus many bug fixes.
256 +
257 + 10. DBControlGrid: Removed memory leak when updating rows.
258 +
259 + 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
260 +
261 + IBX Change Log  version                                           (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
262 +
263 + 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
264 +   when target codepage is CP_NONE. This is a workaround for
265 +   http://bugs.freepascal.org/view.php?id=30622.
266 +
267 + 2. DBLog option removed from TIBStatisticalService - not supported by server
268 +   since Firebird 1.5.
269 +
270 + 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
271 +   similar.
272 +
273 + 4. IBCodePage: updated mapping between codepages and character id.
274 +
275 + 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
276 +   Firebird. Character sets with a char width of two are not UTF16.
277 +
278 + 6. Strings received from the database are now always transliterated into UTF8
279 +   regardless of the database character set or connection character set. This
280 +   is for compatibility with the LCL.
281 +
282 + IBX Change Log  version  (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
283 +
284 + 1. IBBlob: Defer reading of blob until read method called. This avoids having to
285 +   read in an entire blob just to get the size of the blob. General performance
286 +   improvement when opening datasets containing blobs.
287 +
288 + 2. Clearing a  Blob now sets the corresponding field's modified flag.
289 +
290 + 3. IBLookupCombo: When not performing auto-complete, original query sort order
291 +   is now used.
292 +
293 + 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
294 +   determined.
295 +
296 + 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
297 +
298 + 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
299 +   lazarus 1.6.0
300 +
301 + 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
302 +   compilation error.
303 +
304 + IBX Change Log  version                                 (1.4-1) Tue, 17 May 2016 09:14:51 +0100
305 +
306 + 1. No character set specified for connection: when a text blob is retrieved, the
307 +  character set is determined by looking up the native character set using then
308 +  Firebird API. Otherwise a text mode blob is assumed to have the same character
309 +  set as the connection.
310 +
311 + 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
312 +   for Login Dialog returing a change to the database path.
313 +
314 + 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
315 +   to be changed from that given in the TIBDatabase/TIBServer component and for the
316 +   entered value to be saved on a project specific basis (design time only).
317 +
318 + 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
319 +   column fieldname. If they are the same then it is acts as a look up for the KeyValue
320 +   Otherwise, it sets the column text to the selected ListField Value.
321 +
322 + 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
323 +   column width.
324 +
325 + 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
326 +   and a case insensitive search is requested.
327 +
328 + 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
329 +   or column ListSource.
330 +
331 + 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
332 +   unprepare) when closing and the text has not changed.
333 +
334 + 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
335 +   Less likely to cause a cursor re-use error on Windows.
336 +
337 + 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
338 +   Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
339 +
340 + 11. TIBTreeView: Guard against nil destination on record changed
341 +
342 + 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
343 +    string type with the code page set to reflect the returned field encoding after
344 +    Firebird driver transliteration, if any.  FPC 3.0.0 onwards only. Behaviour unchanged for
345 +    earlier versions.
346 +
347 + 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
348 +    will now result in transliteration to the code page specified for the Firebird driver
349 +    if the assigned string has a different code page. FPC 3.0.0 onwards only.
350 +
351 + 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
352 +    is ignored and the lc_ctype value, when the database is opened, is set to align with
353 +    the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
354 +    platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
355 +    3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
356 +    the GETACP is used to determine the Windows code page.
357 +
358 + 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
359 +    name used as the lc_ctype when the database was opened. Only valid while the
360 +    Database is connected.
361 +
362 + 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
363 +    id that corresponds to the DefaultCharSetName.
364 +
365 + IBX Change Log  version                          (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
366 +
367 + 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
368 +   path is given and database attach fails due to access permission issues on the
369 +   temp directory or security database, then the attach is retried with "localhost:"
370 +   prefixing the databasename. This should avoid problems when the database has to
371 +   be accessed by a local (e.g. classic) server and libfbembed is used.
372 +
373 + 2. Windows: revised search order for Firebird DLL:
374 +     i.   The Firebird Embedded Server in the application Directory.
375 +     ii.  If the FIREBIRD environment variable is set then the directory this
376 +          points to is searched for the FB Client DLL and then then underlying
377 +          "bin" directory.
378 +     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
379 +          is used to locate the Firebird installation directory and the underlying
380 +          "bin" directory is searched for the FB Client DLL.
381 +     iv.  The Default installation directories C:\Program Files\Firebird\Firebird_2_x
382 +          are searched for the FB Client DLL.
383 +     v.   The PATH Environment variable is used to search for the FB Client DLL.
384 +     vi.  Finally the  PATH Environment variable is used to search for IBASE.DLL.
385 +
386 + 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
387 +   See doc/readme.scriptengine and example applications.
388 +
389 + 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
390 +   simplify the use of the embedded firebird server on both Linux and Windows platforms.
391 +   See dpc/readme.localdatabase and example applications.
392 +
393 + 5. IBDynamicGrid: Reordering on column header click should now also work for
394 +   dynamic columns.
395 +
396 + 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
397 +   between incrementing/decrementing the lock count and signalling the event.
398 +
399 + IBX Change Log  version           (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
400 +
401 + 1.3.2 was never formally released and only made available as beta copies.
402 +
403 + 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
404 +
405 + 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
406 +
407 + 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
408 +
409 + 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
410 +   i.e. when it is a calculated field
411 +
412 + 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
413 +   This problem was due to a race condition between recalculating row heights and
414 +   determining which row was selected by the mouse click. The row height calculation
415 +   is now deferred by an extra trip round the message loop allowing the row to
416 +   be always calculated on the current grid layout rather than risking it being
417 +   calculated on the grid layout after the expanded row has been shrunk.
418 +
419 + 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
420 +   Windows.
421 +
422 + 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
423 +   These properties allow the (Firebird) character set name for the field and the max number of bytes per character
424 +   to be determined at runtime. See doc/readme.charactersets.html.
425 +
426 + 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
427 +   TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
428 +
429 + 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
430 +   TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
431 +   1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
432 +
433 +   Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
434 +   from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
435 +   implies no truncation.
436 +
437 + 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
438 +
439 + 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
440 +   (avoids "Not in Edit Mode" error).
441 +
442 + 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
443 +
444 + 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
445 +    DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
446 +
447 + 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
448 +
449 + 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
450 +
451 + 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
452 +
453 + 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
454 +
455 + IBX Change Log  version        (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
456 +
457 + 1.   OnCloseUp Event Handler added to TDBLookupProperties
458 +
459 + 2.   IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
460 +     problem with row size when exception is called.
461 +
462 + 3.   IBLookupComboEditBox: Force pending autocomplete on combobox exit.
463 +
464 + 4.   IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
465 +     in a TCustomComboBox and ignores return key if in a TCustomMemo
466 +
467 + 5.   IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
468 +     keyed in i.e. when autocomplete not performed
469 +
470 + 6.   Cleanup of "Uses" clauses and add console mode support. IBX should now support
471 +     console mode applications with all LCL required functions (builtin dialogs and
472 +     cursor management) centralised in the  IBDialogs unit. As long as "IBDialogs" is
473 +     not included in your project, IBX should compile and link with a console mode program.
474 +     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
475 +     console mode application or the IDE will automatically assume that your
476 +     application is GUI based. Instead, you should include the ibexpressconsolemode package.
477 +
478 +     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
479 +     to use the built in dialogs and cursor management. IBDialogs is
480 +     included by default if "ibexpress" is in your project source's "uses" clause.
481 +     This should be the case for all projects created through the IDE. This is why
482 +     you do not want to add the ibexpress package to console mode applications. The
483 +     ibexpressconsolemode package has been created to allow console mode programs
484 +     to avoid adding LCL dependencies when using IBX, while still having the
485 +     unit search paths set up correctly.
486 +
487 +     Existing users should check to ensure that the "ibexpress" unit is included in
488 +     each project's source file (*.lpr).
489 +
490 +     You may find that in order for the IDE to recognise that ibexpressconsolemode
491 +     exists, you have to first open the package in the IDE and then close it. This
492 +     adds it to the most recently accessed packages list. To make it permanently
493 +     available, add the package name to lazarus' staticpackages.inc file.
494 +
495 +         Thanks to Julio Jiménez for suggesting support of console mode.
496 +
497 + 7.   SQL Parser can now accept quoted strings that include new lines
498 +
499 + 8.   IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
500 +     of text on start of edit. This is particularly useful when tabbing to a
501 +     column and then inserting text.
502 +
503 + 9.   New Examples provided for IB Services and ISQLMonitor.
504 +
505 + 10. Fix error when writing to blob streams that recorded only the last buffer
506 +    write in the blob stream. In most cases, this did not cause a problem as the
507 +    IB Blob Stream is written in a single write. However, with the TDBImage, write
508 +    of a graphic type prefix was lost which caused a problem when the image could
509 +        not be automatically recognised.
510 +
511 + 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
512 +    already open" errors due to random numbers used for the cursor name being identical.
513 +
514 + 12. IBTable: corrected error that could result in an "Index out of bounds" error
515 +    when opening the table and the Primary Key is the last or only column in the
516 +    table. Thanks to Rick Hoover for the fix.
517 +
518 + 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
519 +    of "UTF-8", and update list of available database character sets. Existing
520 +    users should check the current lc_ctype setting in their applications.
521 +
522 + IBX Change Log  version  (1.2-4) Sat, 09 May 2015 12:38:29 +0100
523 +
524 + 1.  Firebird Services: avoid List Index error when opening a service with an
525 +    empty Params property.
526 +
527 + 2.  IBControls: Fix problem with new link mechanism introduced in 1.2.3.
528 +    Link now set up in Loaded method - avoids occasional failure to apply
529 +    SQL markup on initial open.
530 +
531 + 3.  "Employees" example performance improvements when scrolling.
532 +
533 + 4.  DBControlGrid: Correctly handle edit panel removal when panel is child control of a
534 +    TFrame. Force recaching of selected frame to avoid GTK race (results in a
535 +    random image cached).
536 +
537 + 5.  DBControlGrid: Should now react to changes in panel height at run time.
538 +
539 + 6.  IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid  
540 +    even when further rows exist.
541 +
542 + 7.  DBControlGrid: DefaultRowHeight is no longer a published property as it should
543 +    always be derived from panel height and setting this property can cause confusion.
544 +    Note for existing projects: to avoid a missing property error at run time,
545 +    each form using the DBControlGrid must be opened, updated and saved in the IDE
546 +    in order to remove the property value from the lfm.
547 +
548 +
549 + IBX Change Log  version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
550 +
551 + 1.  TIBStoredProc. Prepare now called by ParamByName to avoid need to always
552 +    call Prepare before setting parameter values.
553 +
554 + 2.  Error message on ParamByName (all cases) not found now includes name of missing parameter.
555 +
556 + 3.  Code tidyup and more robust handling of dsql information result vector.
557 +
558 + 4.  Support for centralised handling of transaction status changes. TIBTransaction
559 +    has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
560 +    and "AfterExecQuery". The first three are called after the same event is called
561 +    for an IBCustomDataSet descendent using the Transaction. The fourth is called
562 +    after a call to TIBSQL.ExecQuery, again using this transaction. These new events
563 +    enable monitoring of transaction status changes for a given transaction to be
564 +    handled in a single place. For example, when a change to the dataset occurs
565 +    an indicator can be set that shows the user that in order to save changes,
566 +    the transaction should be committed.  Rather than doing this per dataset, this
567 +    can now be done per transaction.
568 +
569 + 5.  TDataSet.CheckBrowseMode automatically posts changes to the current row when
570 +    the dataset is scrolled. However, any changes to the current row are, by default,
571 +    discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
572 +    have a new property "DataSetCloseAction" that adds automatic posting of changes
573 +    on dataset close. If this property is set to dcDiscardChanges (default) then the
574 +    behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
575 +    then IBX will attempt to post any unsaved changes before the dataset is closed
576 +    (and after the BeforeClose event handler is called). The exception is when the
577 +    dataset is being closed as a result of a transaction rollback. In this case,
578 +    no action is taken and any unsaved  changes are discarded. This avoids both
579 +    unnecessary overhead and the risk that a validation error may occur in the Post
580 +    raising an exception and thereby preventing a rollback.
581 +
582 + 6.  String Field sizes and Display Widths should now be correct for multi-byte character sets.
583 +    In earlier versions, the Display Width was set to the maximum byte width rather than the character
584 +    width. Display Widths are now corrected by dividing by the max byte width per character.
585 +    For UTF8 character sets, the byte width is four and hence the Display Width will be
586 +    the byte width divided by 4. The byte width of each character set is determined
587 +    dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
588 +    system table. (see also http://bugs.freepascal.org/view.php?id=27766).
589 +
590 + 7.  SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
591 +
592 + 8.  IBLookupComboEditBox: List should now always be restored to full list when the
593 +    control loses focus. Default Key press default interval reduced to 200ms.
594 +
595 + 9.  DBControlGrid: Ensure that selection is changed to newly appended row, even
596 +    when dataset rows are less than visible rows.
597 +
598 + 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
599 +    does not exist or DataSet is empty. More responsive on dataset open. New event
600 +    OnRestorePosition. Column sort disabled if no header row.
601 +
602 + 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
603 +    while dataset state is dsInsert. Avoids posting errors.
604 +
605 + 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
606 +    avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
607 +
608 + 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
609 +
610 + 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
611 +    to solve a specific problem. That is when the dataset cursor is moved (e.g. by
612 +    a grid mouse click and the current row is being edited or inserted. In this case, TDataset
613 +    always "posts" the current record regardless or whether or not it may be more appropriate
614 +    to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
615 +    "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
616 +    as the first action of the "Post" method and allows the handler to convert the Post
617 +    into a Cancel if that is the appropriate action on moving to a different row. This is
618 +    achieved by returning with "CancelPost" argument set to true. Note that an exception could be
619 +    raised here, but it may still be more appropriate to validate a post and signal
620 +    a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
621 +
622 + 15. On Unix derived systems, the Firebird library name can now be given as a colon
623 +    separated list. Each library name on the list is tried in turn, in left to right
624 +    order with the first found being used as the firebird library. By default, on Linux,
625 +    the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
626 +    overidden by the FBLIB environment variable or the OnGetLibraryName function.
627 +
628 +    Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
629 +    then it will still attempt to access the database via the Firebird Server and will
630 +    require a username and password. If only the pathname is given, then the username
631 +    and password should be omitted and the unix file permissions are used to grant
632 +    access.
633 +
634 + IBX Change Log  version  (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
635 +
636 + 1.  A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
637 +    rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
638 +    that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
639 +    corresponds to a row of the linked DataSource. Any data aware control on the
640 +    replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
641 +
642 + 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
643 +   When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
644 +   takes place during database access. This may be useful when there are performance issues with
645 +   the change of cursor. Setting the property to false suppresses the change of cursor.
646 +
647 + 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
648 +   and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
649 +   Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
650 +   making all changes permanent immediately rather than when the transaction is explicitly
651 +   committed.
652 +
653 + 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
654 +   using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
655 +
656 + IBX Change Log  version      (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
657 +
658 + Development version only.
659 +
660 + IBX Change Log  version   (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
661 +
662 + 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
663 +   This is typically used during an "OnBeforeOpen" event handler to manipulate the
664 +   "Where" and "Having" clauses to implement user specified filters of arbitrary
665 +   complexity.
666 +
667 + 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
668 +   three new data aware controls dependent on IBX and which make use of the SQL Parser.
669 +   These are:
670 +
671 +   - TIBLookupComboEditBox
672 +   - TIBDynamicGrid
673 +   - TIBTreeview
674 +
675 +   TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
676 +   of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
677 +   to revise the available list and restrict it to items that are prefixed by the
678 +   typed text (either case sensitive or case insensitive). Autoinsert allows a
679 +   newly typed entry to be added to the list dataset and included in the available
680 +   list items.
681 +
682 +   TIBDynamicGrid is a TDBGrid descendent that provides for:
683 +   - automatic resizing of selected columns to fill the available row length
684 +   - automatic positioning and sizing of a "totals" control, typically at the
685 +     column footer, on a per column basis.
686 +   - DataSet resorting on header row click, sorting the dataset by the selected column.
687 +     A second click on the same header cell reversed the sort order.
688 +   - Support for a "Panel Editor". That is on clicking the indicator column, the row
689 +     is automatically expanded and a panel superimposed on it. The panel can have any
690 +     number of child controls, typically data aware controls with the same datasource
691 +     as the grid allowing for editing of additional fields and more complex editors.
692 +   - Reselection of the same row following resorting.
693 +   - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
694 +     Its properties are specified on a per column basis and allows for one or more
695 +     columns to have their values selected from a list provided by a dataset.
696 +     Autocomplete and autoinsert are also available. The existing picklist editor
697 +     is unaffected by the extension.
698 +
699 +   TIBTreeView is a data aware TCustomTreeView.
700 +
701 + 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
702 +   zero scale will no longer return an error. An Int64 will be returned instead.
703 +
704 + 4. TIBTransaction now has events for Before and After Transaction End and a new function
705 +   "GetEndAction" allowing the EndAction to be accessed by these event handlers.
706 +
707 + 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
708 +   repeated multiple times.
709 +
710 + 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
711 +   check used to get in the way of using Stored Procedures, and "Update or Insert"
712 +   statements.
713 +
714 + 7. Insert, Modify and Delete property Editors now support Query Generation from
715 +   Stored Procedures.
716 +
717 + 8. Three new examples illustrate the use of the new IB Controls
718 +
719 +
720 + IBX Change Log  version  (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
721 +
722 + 1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
723 +   setting performance. See "readme.field+param.names in the doc folder.(Thanks to
724 +   Gabor Boros for reporting this problem and for testing the improvements).
725 +
726 + 2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
727 +   See readme.field+param.names in the doc folder.
728 +
729 + 3. IBX SQL Editors will now automatically add double quotes around column names when the database
730 +   dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
731 +
732 + 4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
733 +
734 + 5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
735 +   actions.
736 +
737 + 6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
738 +   thanks to Yuriy Kopnin for pointing this out).
739 +
740 + 7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
741 +
742 + 8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
743 +   for both fields and parameter setting.
744 +
745 + 9. Changes to the Select SQL in an IBCustomDataset descendent should now be
746 +   visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
747 +
748 + 10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
749 +    when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
750 +
751 + 11. TIBTable now has a property editor for "MasterFields"
752 +
753 + 12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
754 +    GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
755 +
756 + 13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
757 +    of settings is unrecognised. Selecting this radio button has no effect on the settings.
758 +  
759 +
760   IBX Change Log  version                 (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
761  
762   1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.

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