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Revision: 102
Committed: Thu Jan 18 14:37:23 2018 UTC (6 years, 2 months ago) by tony
File size: 38871 byte(s)
Log Message:
Documentation Update

File Contents

# User Rev Content
1 tony 102 IBX Change Log version (2.1-1) Fri, 05 Jan 2018 16:53:58 +0000
2 tony 101
3     1. IBExtract: Identity columns - add addition check for null column for generator name.
4    
5     2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
6     The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
7     information). Values returned as a result of executing an Insert or Update statement
8     replace existing values in the current row for each corresponding column.
9    
10     3. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
11     When InsertSQL is generated, the Identity columns are not included in the list of values to
12     be inserted. A RETURNING clause is added to the insert statement to return the value of
13     each Identity column after the insert is executed.
14    
15 tony 90 IBX Change Log version (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
16 tony 56
17     1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
18     changes.
19    
20 tony 58 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
21     Bug could result in truncated multi-byte character set values.
22    
23 tony 60 3. Changes consequential on moving fbintf character set utility functions from
24     IFirebirdAPI to IAttachment.
25    
26 tony 62 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
27    
28 tony 64 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
29     results in autocomplete ignoring prefix text.
30    
31 tony 65 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
32     entering a new name into the text box.
33    
34 tony 66 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
35     Firebird rather than recomputing it.
36    
37 tony 67 8. Property Editor positioning tidy up: All IBX Property editors should now be
38     screen centre. Previously some were "poDesigned" which may be inappropriate
39     for multi monitor desktops.
40    
41 tony 80 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
42    
43     11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
44     a transaction and always reset the object.
45    
46     12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
47    
48     13. TIBXScript: Allow for override of database filename in Create Database statements.
49    
50     14. IBLocaldb: Support initialisation of the database from an SQL script in addition
51     to a gbak format archive.
52    
53     15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
54    
55     16. IBLocaldb: Drop database if error creating an empty database.
56    
57     17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
58     unless selected node not in current dataset.
59    
60     18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
61     to TIBCustomService, and IBlocalDB code tidy up.
62    
63     19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
64     behaviour due to uninitialised variable.
65    
66     20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
67     integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
68    
69     21. IBSQL: When Database changed ensure that all resources are freed.
70    
71     22. IBCustomDataset: When database changed ensure that queries an unprepared.
72    
73 tony 84 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
74     * Line Wrap on SQL Token boundaries (on user command)
75     * auto-complete table names in drop down list of table names
76     * Double click on tablename or field name adds to SQL text
77 tony 80
78     24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
79    
80     25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
81     TVariantArray. Seems to avoid memory corruption in Windows (probably a
82     workaround for a problem in fpc 3.0.4 win64).
83    
84     26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
85    
86 tony 83 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
87    
88 tony 51 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
89 tony 49
90 tony 51 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
91 tony 49 include remote system name.
92    
93     2. TIBExtract: No longer include comment header and COMMIT statement for empty
94     tables when data included in output.
95    
96     3. Profiling: IBSQL now has conditional compilation flags to enable query performance
97     and timing information to be written to stdout. This may be used to locate
98     performance bottlenecks.
99    
100     4. SQLParser: only call "OnChanging" event handler when value is different.
101    
102     5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
103    
104 tony 50 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
105     that BindFields is called when the query is next activated. Avoids FieldName
106     not found error.
107    
108 tony 80 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
109     purpose and allows the programmer to define any action they want for Update, Insert
110     or Delete. This may be complex SQL (similar to a Trigger), application specific
111     filtering of updates, or use of statements such as Grant or Revoke instead of
112     normal DML. See User Manual for more information.
113    
114 tony 47 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
115 tony 45
116 tony 47 1. TIBEvents: Fix uninitialised variable that could result in lost events.
117 tony 45
118 tony 47 2. TIBExtract: Added support for FB3 "USAGE" privilege.
119    
120     3. TIBExtract: data formatted as Charset set "octets" is now output using
121     hexadecimal notation.
122    
123     4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
124     using a simple XML format.
125    
126     5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
127     grants to these objects.
128    
129     6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
130     dependency problems restoring complex databases.
131    
132     7. TIBXScript: This component has been restructured to allow for the processing of
133     embedded XML in INSERT statements and to support interactive sources in addition
134     to non-interactive data sources such as files.
135    
136     8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
137    
138     9. TIBXScript: ISQL compatiable Set statements are now supported:
139     SET SQL DIALECT
140     SET TERM
141     SET AUTODDL
142     SET BAIL
143     SET ECHO
144     SET COUNT
145     SET STATS
146     SET NAMES <character set>
147    
148     10. IBVersion unit added to hold current IBX Version Number information.
149    
150     11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
151     and domain definitions.
152    
153     12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
154     fully supported.
155    
156     13. TIBExtract: when a database dump includes data, the generator values are now also set.
157    
158     14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
159    
160     IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
161    
162 tony 50 See also doc/IBX4LazarusGuide.pdf for important information on
163 tony 45 upgrading to IBX2.
164    
165     1. Size property of TIBStringField is now the width in characters of the field
166     and not the byte length. This applies only to multi-byte character sets such
167     as UTF8. The original approach aligned with TStringField. However, the TStringField
168     code is not recognised as a bug and hence this change to align the behaviour.
169     The TStringField change is expected in fpc 3.2.0.
170    
171     2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
172     true (default) then Size property value saved in the lfm is ignored. Size is
173     always set from the dynamic information read from the database. It is unclear
174     why anyone would want to override this and set Size to false.
175    
176     3. ibxscript: should now handle correctly a Case..End statement within a procedure
177     block.
178    
179     4. IBDatabase: new property - CreateIfNotExists. If true and database does not
180     exist when an attempt is made to connect to it (run time only) then an attempt
181     is made to create the database.
182    
183     5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
184     has been successfully created as a result of a call to CreateDatabase or when
185     creating a database after it was found not to exist.
186    
187     6. DBControlGrid: a race condition could result in the wrong row image being
188     written to the cache. This has been avoided by a trip round the message
189     loop before rendering the row image.
190    
191     7. DBControlGrid: It is strongly recommended not to open the source DataSet for
192     a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
193     known to risk corrupt rendering of row images when the control is first
194     displayed. If necessary use "Application.QueueAsyncCall" to delay opening
195     of the dataset (see DBControlGrid examples) until the Form's Window has been created.
196    
197     8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
198     a TDateEdit control located on an editor panel.
199    
200     9. TIBExtract: brought up-to-date plus many bug fixes.
201    
202     10. DBControlGrid: Removed memory leak when updating rows.
203    
204     11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
205    
206 tony 43 IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
207    
208     1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
209     when target codepage is CP_NONE. This is a workaround for
210     http://bugs.freepascal.org/view.php?id=30622.
211    
212     2. DBLog option removed from TIBStatisticalService - not supported by server
213     since Firebird 1.5.
214    
215     3. ibxscript: An error is no longer generated for "on commit preserve rows" or
216     similar.
217    
218     4. IBCodePage: updated mapping between codepages and character id.
219    
220     5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
221     Firebird. Character sets with a char width of two are not UTF16.
222    
223     6. Strings received from the database are now always transliterated into UTF8
224     regardless of the database character set or connection character set. This
225     is for compatibility with the LCL.
226    
227 tony 45 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
228 tony 41
229     1. IBBlob: Defer reading of blob until read method called. This avoids having to
230     read in an entire blob just to get the size of the blob. General performance
231     improvement when opening datasets containing blobs.
232    
233     2. Clearing a Blob now sets the corresponding field's modified flag.
234    
235     3. IBLookupCombo: When not performing auto-complete, original query sort order
236     is now used.
237    
238     4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
239     determined.
240    
241     5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
242    
243     6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
244     lazarus 1.6.0
245    
246     7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
247     compilation error.
248    
249 tony 39 IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
250    
251     1. No character set specified for connection: when a text blob is retrieved, the
252     character set is determined by looking up the native character set using then
253     Firebird API. Otherwise a text mode blob is assumed to have the same character
254     set as the connection.
255    
256     2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
257     for Login Dialog returing a change to the database path.
258    
259     3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
260     to be changed from that given in the TIBDatabase/TIBServer component and for the
261     entered value to be saved on a project specific basis (design time only).
262    
263     4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
264     column fieldname. If they are the same then it is acts as a look up for the KeyValue
265     Otherwise, it sets the column text to the selected ListField Value.
266    
267     5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
268     column width.
269    
270     6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
271     and a case insensitive search is requested.
272    
273     7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
274     or column ListSource.
275    
276     8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
277     unprepare) when closing and the text has not changed.
278    
279     9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
280     Less likely to cause a cursor re-use error on Windows.
281    
282     10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
283     Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
284    
285     11. TIBTreeView: Guard against nil destination on record changed
286    
287     12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
288     string type with the code page set to reflect the returned field encoding after
289     Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
290     earlier versions.
291    
292     13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
293     will now result in transliteration to the code page specified for the Firebird driver
294     if the assigned string has a different code page. FPC 3.0.0 onwards only.
295    
296     14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
297     is ignored and the lc_ctype value, when the database is opened, is set to align with
298     the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
299     platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
300     3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
301     the GETACP is used to determine the Windows code page.
302    
303     15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
304     name used as the lc_ctype when the database was opened. Only valid while the
305     Database is connected.
306    
307     16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
308     id that corresponds to the DefaultCharSetName.
309    
310 tony 37 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
311    
312     1. Unix: If Firebird Embedded Server shared object is loaded and a local database
313     path is given and database attach fails due to access permission issues on the
314     temp directory or security database, then the attach is retried with "localhost:"
315     prefixing the databasename. This should avoid problems when the database has to
316     be accessed by a local (e.g. classic) server and libfbembed is used.
317    
318     2. Windows: revised search order for Firebird DLL:
319     i. The Firebird Embedded Server in the application Directory.
320     ii. If the FIREBIRD environment variable is set then the directory this
321     points to is searched for the FB Client DLL and then then underlying
322     "bin" directory.
323     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
324     is used to locate the Firebird installation directory and the underlying
325     "bin" directory is searched for the FB Client DLL.
326     iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
327     are searched for the FB Client DLL.
328     v. The PATH Environment variable is used to search for the FB Client DLL.
329     vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
330    
331     3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
332     See doc/readme.scriptengine and example applications.
333    
334     4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
335     simplify the use of the embedded firebird server on both Linux and Windows platforms.
336     See dpc/readme.localdatabase and example applications.
337    
338     5. IBDynamicGrid: Reordering on column header click should now also work for
339     dynamic columns.
340    
341     6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
342     between incrementing/decrementing the lock count and signalling the event.
343    
344 tony 35 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
345    
346 tony 37 1.3.2 was never formally released and only made available as beta copies.
347    
348 tony 35 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
349    
350     2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
351    
352     3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
353    
354     4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
355     i.e. when it is a calculated field
356    
357     5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
358     This problem was due to a race condition between recalculating row heights and
359     determining which row was selected by the mouse click. The row height calculation
360     is now deferred by an extra trip round the message loop allowing the row to
361     be always calculated on the current grid layout rather than risking it being
362     calculated on the grid layout after the expanded row has been shrunk.
363    
364     6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
365     Windows.
366    
367     7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
368     These properties allow the (Firebird) character set name for the field and the max number of bytes per character
369 tony 37 to be determined at runtime. See doc/readme.charactersets.html.
370 tony 35
371     8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
372 tony 37 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
373 tony 35
374     9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
375     TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
376 tony 37 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
377 tony 35
378     Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
379     from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
380     implies no truncation.
381    
382     10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
383    
384     11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
385     (avoids "Not in Edit Mode" error).
386    
387     12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
388    
389     13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
390     DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
391    
392     14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
393    
394     15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
395    
396     16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
397    
398     17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
399    
400 tony 33 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
401 tony 31
402     1. OnCloseUp Event Handler added to TDBLookupProperties
403    
404     2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
405     problem with row size when exception is called.
406    
407     3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
408    
409     4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
410     in a TCustomComboBox and ignores return key if in a TCustomMemo
411    
412     5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
413     keyed in i.e. when autocomplete not performed
414    
415 tony 33 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
416     console mode applications with all LCL required functions (builtin dialogs and
417     cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
418     not included in your project, IBX should compile and link with a console mode program.
419     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
420     console mode application or the IDE will automatically assume that your
421     application is GUI based. Instead, you should include the ibexpressconsolemode package.
422 tony 31
423     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
424     to use the built in dialogs and cursor management. IBDialogs is
425 tony 33 included by default if "ibexpress" is in your project source's "uses" clause.
426 tony 31 This should be the case for all projects created through the IDE. This is why
427     you do not want to add the ibexpress package to console mode applications. The
428     ibexpressconsolemode package has been created to allow console mode programs
429     to avoid adding LCL dependencies when using IBX, while still having the
430     unit search paths set up correctly.
431    
432 tony 33 Existing users should check to ensure that the "ibexpress" unit is included in
433     each project's source file (*.lpr).
434    
435 tony 31 You may find that in order for the IDE to recognise that ibexpressconsolemode
436     exists, you have to first open the package in the IDE and then close it. This
437     adds it to the most recently accessed packages list. To make it permanently
438     available, add the package name to lazarus' staticpackages.inc file.
439    
440 tony 33 Thanks to Julio Jiménez for suggesting support of console mode.
441 tony 31
442     7. SQL Parser can now accept quoted strings that include new lines
443    
444     8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
445     of text on start of edit. This is particularly useful when tabbing to a
446     column and then inserting text.
447    
448     9. New Examples provided for IB Services and ISQLMonitor.
449    
450     10. Fix error when writing to blob streams that recorded only the last buffer
451     write in the blob stream. In most cases, this did not cause a problem as the
452     IB Blob Stream is written in a single write. However, with the TDBImage, write
453     of a graphic type prefix was lost which caused a problem when the image could
454     not be automatically recognised.
455    
456     11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
457 tony 33 already open" errors due to random numbers used for the cursor name being identical.
458 tony 31
459     12. IBTable: corrected error that could result in an "Index out of bounds" error
460     when opening the table and the Primary Key is the last or only column in the
461     table. Thanks to Rick Hoover for the fix.
462    
463 tony 33 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
464     of "UTF-8", and update list of available database character sets. Existing
465     users should check the current lc_ctype setting in their applications.
466 tony 29
467 tony 33 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
468    
469 tony 29 1. Firebird Services: avoid List Index error when opening a service with an
470     empty Params property.
471    
472     2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
473     Link now set up in Loaded method - avoids occasional failure to apply
474     SQL markup on initial open.
475    
476     3. "Employees" example performance improvements when scrolling.
477    
478     4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
479     TFrame. Force recaching of selected frame to avoid GTK race (results in a
480     random image cached).
481    
482     5. DBControlGrid: Should now react to changes in panel height at run time.
483    
484     6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
485     even when further rows exist.
486    
487     7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
488     always be derived from panel height and setting this property can cause confusion.
489     Note for existing projects: to avoid a missing property error at run time,
490     each form using the DBControlGrid must be opened, updated and saved in the IDE
491     in order to remove the property value from the lfm.
492    
493    
494 tony 33 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
495 tony 27
496     1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
497     call Prepare before setting parameter values.
498    
499     2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
500    
501     3. Code tidyup and more robust handling of dsql information result vector.
502    
503     4. Support for centralised handling of transaction status changes. TIBTransaction
504     has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
505     and "AfterExecQuery". The first three are called after the same event is called
506     for an IBCustomDataSet descendent using the Transaction. The fourth is called
507     after a call to TIBSQL.ExecQuery, again using this transaction. These new events
508     enable monitoring of transaction status changes for a given transaction to be
509     handled in a single place. For example, when a change to the dataset occurs
510     an indicator can be set that shows the user that in order to save changes,
511     the transaction should be committed. Rather than doing this per dataset, this
512     can now be done per transaction.
513    
514     5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
515     the dataset is scrolled. However, any changes to the current row are, by default,
516     discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
517     have a new property "DataSetCloseAction" that adds automatic posting of changes
518     on dataset close. If this property is set to dcDiscardChanges (default) then the
519     behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
520     then IBX will attempt to post any unsaved changes before the dataset is closed
521     (and after the BeforeClose event handler is called). The exception is when the
522     dataset is being closed as a result of a transaction rollback. In this case,
523     no action is taken and any unsaved changes are discarded. This avoids both
524     unnecessary overhead and the risk that a validation error may occur in the Post
525     raising an exception and thereby preventing a rollback.
526    
527     6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
528     In earlier versions, the Display Width was set to the maximum byte width rather than the character
529     width. Display Widths are now corrected by dividing by the max byte width per character.
530     For UTF8 character sets, the byte width is four and hence the Display Width will be
531     the byte width divided by 4. The byte width of each character set is determined
532     dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
533     system table. (see also http://bugs.freepascal.org/view.php?id=27766).
534    
535     7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
536    
537     8. IBLookupComboEditBox: List should now always be restored to full list when the
538     control loses focus. Default Key press default interval reduced to 200ms.
539    
540     9. DBControlGrid: Ensure that selection is changed to newly appended row, even
541     when dataset rows are less than visible rows.
542    
543     10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
544     does not exist or DataSet is empty. More responsive on dataset open. New event
545     OnRestorePosition. Column sort disabled if no header row.
546    
547     11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
548     while dataset state is dsInsert. Avoids posting errors.
549    
550     12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
551     avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
552    
553     13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
554    
555     14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
556     to solve a specific problem. That is when the dataset cursor is moved (e.g. by
557     a grid mouse click and the current row is being edited or inserted. In this case, TDataset
558     always "posts" the current record regardless or whether or not it may be more appropriate
559     to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
560     "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
561     as the first action of the "Post" method and allows the handler to convert the Post
562     into a Cancel if that is the appropriate action on moving to a different row. This is
563     achieved by returning with "CancelPost" argument set to true. Note that an exception could be
564     raised here, but it may still be more appropriate to validate a post and signal
565     a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
566    
567     15. On Unix derived systems, the Firebird library name can now be given as a colon
568     separated list. Each library name on the list is tried in turn, in left to right
569     order with the first found being used as the firebird library. By default, on Linux,
570     the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
571     overidden by the FBLIB environment variable or the OnGetLibraryName function.
572    
573     Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
574     then it will still attempt to access the database via the Firebird Server and will
575     require a username and password. If only the pathname is given, then the username
576     and password should be omitted and the unix file permissions are used to grant
577     access.
578    
579 tony 33 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
580 tony 23
581     1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
582     rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
583     that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
584 tony 27 corresponds to a row of the linked DataSource. Any data aware control on the
585 tony 23 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
586    
587     2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
588 tony 25 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
589 tony 23 takes place during database access. This may be useful when there are performance issues with
590     the change of cursor. Setting the property to false suppresses the change of cursor.
591    
592     3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
593     and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
594     Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
595     making all changes permanent immediately rather than when the transaction is explicitly
596     committed.
597    
598 tony 25 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
599 tony 27 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
600 tony 23
601 tony 33 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
602 tony 25
603     Development version only.
604    
605 tony 33 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
606 tony 21
607     1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
608     This is typically used during an "OnBeforeOpen" event handler to manipulate the
609     "Where" and "Having" clauses to implement user specified filters of arbitrary
610     complexity.
611    
612     2. A new Component Palette entry "Firebird Data Controls" is now available. This has
613     three new data aware controls dependent on IBX and which make use of the SQL Parser.
614     These are:
615    
616     - TIBLookupComboEditBox
617     - TIBDynamicGrid
618     - TIBTreeview
619    
620     TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
621     of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
622     to revise the available list and restrict it to items that are prefixed by the
623 tony 25 typed text (either case sensitive or case insensitive). Autoinsert allows a
624 tony 21 newly typed entry to be added to the list dataset and included in the available
625     list items.
626    
627     TIBDynamicGrid is a TDBGrid descendent that provides for:
628     - automatic resizing of selected columns to fill the available row length
629     - automatic positioning and sizing of a "totals" control, typically at the
630     column footer, on a per column basis.
631     - DataSet resorting on header row click, sorting the dataset by the selected column.
632     A second click on the same header cell reversed the sort order.
633     - Support for a "Panel Editor". That is on clicking the indicator column, the row
634     is automatically expanded and a panel superimposed on it. The panel can have any
635     number of child controls, typically data aware controls with the same datasource
636     as the grid allowing for editing of additional fields and more complex editors.
637     - Reselection of the same row following resorting.
638     - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
639     Its properties are specified on a per column basis and allows for one or more
640     columns to have their values selected from a list provided by a dataset.
641     Autocomplete and autoinsert are also available. The existing picklist editor
642     is unaffected by the extension.
643    
644     TIBTreeView is a data aware TCustomTreeView.
645    
646     3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
647     zero scale will no longer return an error. An Int64 will be returned instead.
648    
649     4. TIBTransaction now has events for Before and After Transaction End and a new function
650     "GetEndAction" allowing the EndAction to be accessed by these event handlers.
651    
652     5. TIBQuery can now handle correctly queries which contain the same keyword parameter
653     repeated multiple times.
654    
655     6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
656     check used to get in the way of using Stored Procedures, and "Update or Insert"
657     statements.
658    
659     7. Insert, Modify and Delete property Editors now support Query Generation from
660     Stored Procedures.
661    
662     8. Three new examples illustrate the use of the new IB Controls
663    
664    
665 tony 33 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
666 tony 19
667     1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
668     setting performance. See "readme.field+param.names in the doc folder.(Thanks to
669     Gabor Boros for reporting this problem and for testing the improvements).
670    
671     2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
672     See readme.field+param.names in the doc folder.
673    
674     3. IBX SQL Editors will now automatically add double quotes around column names when the database
675     dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
676    
677     4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
678    
679     5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
680     actions.
681    
682     6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
683     thanks to Yuriy Kopnin for pointing this out).
684    
685     7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
686    
687     8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
688     for both fields and parameter setting.
689    
690     9. Changes to the Select SQL in an IBCustomDataset descendent should now be
691     visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
692    
693     10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
694     when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
695    
696     11. TIBTable now has a property editor for "MasterFields"
697    
698     12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
699     GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
700    
701     13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
702     of settings is unrecognised. Selecting this radio button has no effect on the settings.
703    
704    
705 tony 17 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
706    
707     1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
708    
709 tony 15 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
710    
711     1. In a TIBCustomDataset descendent, a generator now only sets the value when
712     it is null. This allows for alternative user defined setting of the generator
713    
714     Many thanks to Julio Jiménez for this fix
715    
716     2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
717     and suggests that the user may have forgotten to install it.
718    
719 tony 13 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
720    
721     1. Conditional compilation used to limit registration of TIntegerField to
722     Lazarus versions less than 1.1
723    
724     2. When a database connection is created, character set is now by default set
725     to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
726     1250 to 1254.
727    
728    
729 tony 11 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
730    
731     1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
732    
733    
734 tony 9 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
735 tony 7
736     1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
737     Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
738    
739     2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
740     package is changed to do this (which it should do).
741    
742     IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
743    
744     1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
745    
746     2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
747    
748     3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
749    
750     4. Property editors should now correctly resize.
751    
752     5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
753     (restored original functionality)
754    
755     6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
756     library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.