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Revision: 80
Committed: Mon Jan 1 11:31:07 2018 UTC (6 years, 2 months ago) by tony
File size: 37683 byte(s)
Log Message:
Fixes merged into public release

File Contents

# User Rev Content
1 tony 80 IBX Change Log version (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
2 tony 56
3     1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
4     changes.
5    
6 tony 58 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
7     Bug could result in truncated multi-byte character set values.
8    
9 tony 60 3. Changes consequential on moving fbintf character set utility functions from
10     IFirebirdAPI to IAttachment.
11    
12 tony 62 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
13    
14 tony 64 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
15     results in autocomplete ignoring prefix text.
16    
17 tony 65 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
18     entering a new name into the text box.
19    
20 tony 66 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
21     Firebird rather than recomputing it.
22    
23 tony 67 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 tony 80 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 tony 51 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
70 tony 49
71 tony 51 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
72 tony 49 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 tony 50 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 tony 80 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 tony 47 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
96 tony 45
97 tony 47 1. TIBEvents: Fix uninitialised variable that could result in lost events.
98 tony 45
99 tony 47 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 tony 50 See also doc/IBX4LazarusGuide.pdf for important information on
144 tony 45 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 tony 43 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 tony 45 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
209 tony 41
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 tony 39 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 tony 37 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 tony 35 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
326    
327 tony 37 1.3.2 was never formally released and only made available as beta copies.
328    
329 tony 35 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 tony 37 to be determined at runtime. See doc/readme.charactersets.html.
351 tony 35
352     8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
353 tony 37 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
354 tony 35
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 tony 37 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
358 tony 35
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 tony 33 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
382 tony 31
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 tony 33 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 tony 31
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 tony 33 included by default if "ibexpress" is in your project source's "uses" clause.
407 tony 31 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 tony 33 Existing users should check to ensure that the "ibexpress" unit is included in
414     each project's source file (*.lpr).
415    
416 tony 31 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 tony 33 Thanks to Julio Jiménez for suggesting support of console mode.
422 tony 31
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 tony 33 already open" errors due to random numbers used for the cursor name being identical.
439 tony 31
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 tony 33 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 tony 29
448 tony 33 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
449    
450 tony 29 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 tony 33 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
476 tony 27
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 tony 33 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
561 tony 23
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 tony 27 corresponds to a row of the linked DataSource. Any data aware control on the
566 tony 23 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 tony 25 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
570 tony 23 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 tony 25 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
580 tony 27 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
581 tony 23
582 tony 33 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
583 tony 25
584     Development version only.
585    
586 tony 33 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
587 tony 21
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 tony 25 typed text (either case sensitive or case insensitive). Autoinsert allows a
605 tony 21 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 tony 33 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
647 tony 19
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 tony 17 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 tony 15 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 tony 13 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 tony 11 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 tony 9 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
716 tony 7
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
719    
720     2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
721     package is changed to do this (which it should do).
722    
723     IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
724    
725     1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
726    
727     2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
728    
729     3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
730    
731     4. Property editors should now correctly resize.
732    
733     5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
734     (restored original functionality)
735    
736     6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
737     library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.