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Revision: 84
Committed: Mon Jan 1 11:31:18 2018 UTC (2 years, 8 months ago) by tony
File size: 37973 byte(s)
Log Message:
Changelog update for SQL Editors
Line File contents
1 IBX Change Log version (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
3 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
4 changes.
6 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
7 Bug could result in truncated multi-byte character set values.
9 3. Changes consequential on moving fbintf character set utility functions from
10 IFirebirdAPI to IAttachment.
12 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
14 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
15 results in autocomplete ignoring prefix text.
17 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
18 entering a new name into the text box.
20 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
21 Firebird rather than recomputing it.
23 8. Property Editor positioning tidy up: All IBX Property editors should now be
24 screen centre. Previously some were "poDesigned" which may be inappropriate
25 for multi monitor desktops.
27 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
29 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
30 a transaction and always reset the object.
32 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
34 13. TIBXScript: Allow for override of database filename in Create Database statements.
36 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
37 to a gbak format archive.
39 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
41 16. IBLocaldb: Drop database if error creating an empty database.
43 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
44 unless selected node not in current dataset.
46 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
47 to TIBCustomService, and IBlocalDB code tidy up.
49 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
50 behaviour due to uninitialised variable.
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.
55 21. IBSQL: When Database changed ensure that all resources are freed.
57 22. IBCustomDataset: When database changed ensure that queries an unprepared.
59 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
60 * Line Wrap on SQL Token boundaries (on user command)
61 * auto-complete table names in drop down list of table names
62 * Double click on tablename or field name adds to SQL text
64 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
66 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
67 TVariantArray. Seems to avoid memory corruption in Windows (probably a
68 workaround for a problem in fpc 3.0.4 win64).
70 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
72 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
74 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
76 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
77 include remote system name.
79 2. TIBExtract: No longer include comment header and COMMIT statement for empty
80 tables when data included in output.
82 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
83 and timing information to be written to stdout. This may be used to locate
84 performance bottlenecks.
86 4. SQLParser: only call "OnChanging" event handler when value is different.
88 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
90 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
91 that BindFields is called when the query is next activated. Avoids FieldName
92 not found error.
94 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
95 purpose and allows the programmer to define any action they want for Update, Insert
96 or Delete. This may be complex SQL (similar to a Trigger), application specific
97 filtering of updates, or use of statements such as Grant or Revoke instead of
98 normal DML. See User Manual for more information.
100 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
102 1. TIBEvents: Fix uninitialised variable that could result in lost events.
104 2. TIBExtract: Added support for FB3 "USAGE" privilege.
106 3. TIBExtract: data formatted as Charset set "octets" is now output using
107 hexadecimal notation.
109 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
110 using a simple XML format.
112 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
113 grants to these objects.
115 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
116 dependency problems restoring complex databases.
118 7. TIBXScript: This component has been restructured to allow for the processing of
119 embedded XML in INSERT statements and to support interactive sources in addition
120 to non-interactive data sources such as files.
122 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
124 9. TIBXScript: ISQL compatiable Set statements are now supported:
132 SET NAMES <character set>
134 10. IBVersion unit added to hold current IBX Version Number information.
136 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
137 and domain definitions.
139 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
140 fully supported.
142 13. TIBExtract: when a database dump includes data, the generator values are now also set.
144 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
146 IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
148 See also doc/IBX4LazarusGuide.pdf for important information on
149 upgrading to IBX2.
151 1. Size property of TIBStringField is now the width in characters of the field
152 and not the byte length. This applies only to multi-byte character sets such
153 as UTF8. The original approach aligned with TStringField. However, the TStringField
154 code is not recognised as a bug and hence this change to align the behaviour.
155 The TStringField change is expected in fpc 3.2.0.
157 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
158 true (default) then Size property value saved in the lfm is ignored. Size is
159 always set from the dynamic information read from the database. It is unclear
160 why anyone would want to override this and set Size to false.
162 3. ibxscript: should now handle correctly a Case..End statement within a procedure
163 block.
165 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
166 exist when an attempt is made to connect to it (run time only) then an attempt
167 is made to create the database.
169 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
170 has been successfully created as a result of a call to CreateDatabase or when
171 creating a database after it was found not to exist.
173 6. DBControlGrid: a race condition could result in the wrong row image being
174 written to the cache. This has been avoided by a trip round the message
175 loop before rendering the row image.
177 7. DBControlGrid: It is strongly recommended not to open the source DataSet for
178 a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
179 known to risk corrupt rendering of row images when the control is first
180 displayed. If necessary use "Application.QueueAsyncCall" to delay opening
181 of the dataset (see DBControlGrid examples) until the Form's Window has been created.
183 8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
184 a TDateEdit control located on an editor panel.
186 9. TIBExtract: brought up-to-date plus many bug fixes.
188 10. DBControlGrid: Removed memory leak when updating rows.
190 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
192 IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
194 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
195 when target codepage is CP_NONE. This is a workaround for
198 2. DBLog option removed from TIBStatisticalService - not supported by server
199 since Firebird 1.5.
201 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
202 similar.
204 4. IBCodePage: updated mapping between codepages and character id.
206 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
207 Firebird. Character sets with a char width of two are not UTF16.
209 6. Strings received from the database are now always transliterated into UTF8
210 regardless of the database character set or connection character set. This
211 is for compatibility with the LCL.
213 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
215 1. IBBlob: Defer reading of blob until read method called. This avoids having to
216 read in an entire blob just to get the size of the blob. General performance
217 improvement when opening datasets containing blobs.
219 2. Clearing a Blob now sets the corresponding field's modified flag.
221 3. IBLookupCombo: When not performing auto-complete, original query sort order
222 is now used.
224 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
225 determined.
227 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
229 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
230 lazarus 1.6.0
232 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
233 compilation error.
235 IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
237 1. No character set specified for connection: when a text blob is retrieved, the
238 character set is determined by looking up the native character set using then
239 Firebird API. Otherwise a text mode blob is assumed to have the same character
240 set as the connection.
242 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
243 for Login Dialog returing a change to the database path.
245 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
246 to be changed from that given in the TIBDatabase/TIBServer component and for the
247 entered value to be saved on a project specific basis (design time only).
249 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
250 column fieldname. If they are the same then it is acts as a look up for the KeyValue
251 Otherwise, it sets the column text to the selected ListField Value.
253 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
254 column width.
256 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
257 and a case insensitive search is requested.
259 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
260 or column ListSource.
262 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
263 unprepare) when closing and the text has not changed.
265 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
266 Less likely to cause a cursor re-use error on Windows.
268 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
269 Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
271 11. TIBTreeView: Guard against nil destination on record changed
273 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
274 string type with the code page set to reflect the returned field encoding after
275 Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
276 earlier versions.
278 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
279 will now result in transliteration to the code page specified for the Firebird driver
280 if the assigned string has a different code page. FPC 3.0.0 onwards only.
282 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
283 is ignored and the lc_ctype value, when the database is opened, is set to align with
284 the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
285 platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
286 3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
287 the GETACP is used to determine the Windows code page.
289 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
290 name used as the lc_ctype when the database was opened. Only valid while the
291 Database is connected.
293 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
294 id that corresponds to the DefaultCharSetName.
296 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
298 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
299 path is given and database attach fails due to access permission issues on the
300 temp directory or security database, then the attach is retried with "localhost:"
301 prefixing the databasename. This should avoid problems when the database has to
302 be accessed by a local (e.g. classic) server and libfbembed is used.
304 2. Windows: revised search order for Firebird DLL:
305 i. The Firebird Embedded Server in the application Directory.
306 ii. If the FIREBIRD environment variable is set then the directory this
307 points to is searched for the FB Client DLL and then then underlying
308 "bin" directory.
309 iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
310 is used to locate the Firebird installation directory and the underlying
311 "bin" directory is searched for the FB Client DLL.
312 iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
313 are searched for the FB Client DLL.
314 v. The PATH Environment variable is used to search for the FB Client DLL.
315 vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
317 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
318 See doc/readme.scriptengine and example applications.
320 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
321 simplify the use of the embedded firebird server on both Linux and Windows platforms.
322 See dpc/readme.localdatabase and example applications.
324 5. IBDynamicGrid: Reordering on column header click should now also work for
325 dynamic columns.
327 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
328 between incrementing/decrementing the lock count and signalling the event.
330 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
332 1.3.2 was never formally released and only made available as beta copies.
334 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
336 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
338 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
340 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
341 i.e. when it is a calculated field
343 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
344 This problem was due to a race condition between recalculating row heights and
345 determining which row was selected by the mouse click. The row height calculation
346 is now deferred by an extra trip round the message loop allowing the row to
347 be always calculated on the current grid layout rather than risking it being
348 calculated on the grid layout after the expanded row has been shrunk.
350 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
351 Windows.
353 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
354 These properties allow the (Firebird) character set name for the field and the max number of bytes per character
355 to be determined at runtime. See doc/readme.charactersets.html.
357 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
358 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
360 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
361 TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
362 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
364 Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
365 from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
366 implies no truncation.
368 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
370 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
371 (avoids "Not in Edit Mode" error).
373 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
375 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
376 DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
378 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
380 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
382 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
384 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
386 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
388 1. OnCloseUp Event Handler added to TDBLookupProperties
390 2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
391 problem with row size when exception is called.
393 3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
395 4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
396 in a TCustomComboBox and ignores return key if in a TCustomMemo
398 5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
399 keyed in i.e. when autocomplete not performed
401 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
402 console mode applications with all LCL required functions (builtin dialogs and
403 cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
404 not included in your project, IBX should compile and link with a console mode program.
405 See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
406 console mode application or the IDE will automatically assume that your
407 application is GUI based. Instead, you should include the ibexpressconsolemode package.
409 IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
410 to use the built in dialogs and cursor management. IBDialogs is
411 included by default if "ibexpress" is in your project source's "uses" clause.
412 This should be the case for all projects created through the IDE. This is why
413 you do not want to add the ibexpress package to console mode applications. The
414 ibexpressconsolemode package has been created to allow console mode programs
415 to avoid adding LCL dependencies when using IBX, while still having the
416 unit search paths set up correctly.
418 Existing users should check to ensure that the "ibexpress" unit is included in
419 each project's source file (*.lpr).
421 You may find that in order for the IDE to recognise that ibexpressconsolemode
422 exists, you have to first open the package in the IDE and then close it. This
423 adds it to the most recently accessed packages list. To make it permanently
424 available, add the package name to lazarus' file.
426 Thanks to Julio Jiménez for suggesting support of console mode.
428 7. SQL Parser can now accept quoted strings that include new lines
430 8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
431 of text on start of edit. This is particularly useful when tabbing to a
432 column and then inserting text.
434 9. New Examples provided for IB Services and ISQLMonitor.
436 10. Fix error when writing to blob streams that recorded only the last buffer
437 write in the blob stream. In most cases, this did not cause a problem as the
438 IB Blob Stream is written in a single write. However, with the TDBImage, write
439 of a graphic type prefix was lost which caused a problem when the image could
440 not be automatically recognised.
442 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
443 already open" errors due to random numbers used for the cursor name being identical.
445 12. IBTable: corrected error that could result in an "Index out of bounds" error
446 when opening the table and the Primary Key is the last or only column in the
447 table. Thanks to Rick Hoover for the fix.
449 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
450 of "UTF-8", and update list of available database character sets. Existing
451 users should check the current lc_ctype setting in their applications.
453 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
455 1. Firebird Services: avoid List Index error when opening a service with an
456 empty Params property.
458 2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
459 Link now set up in Loaded method - avoids occasional failure to apply
460 SQL markup on initial open.
462 3. "Employees" example performance improvements when scrolling.
464 4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
465 TFrame. Force recaching of selected frame to avoid GTK race (results in a
466 random image cached).
468 5. DBControlGrid: Should now react to changes in panel height at run time.
470 6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
471 even when further rows exist.
473 7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
474 always be derived from panel height and setting this property can cause confusion.
475 Note for existing projects: to avoid a missing property error at run time,
476 each form using the DBControlGrid must be opened, updated and saved in the IDE
477 in order to remove the property value from the lfm.
480 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
482 1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
483 call Prepare before setting parameter values.
485 2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
487 3. Code tidyup and more robust handling of dsql information result vector.
489 4. Support for centralised handling of transaction status changes. TIBTransaction
490 has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
491 and "AfterExecQuery". The first three are called after the same event is called
492 for an IBCustomDataSet descendent using the Transaction. The fourth is called
493 after a call to TIBSQL.ExecQuery, again using this transaction. These new events
494 enable monitoring of transaction status changes for a given transaction to be
495 handled in a single place. For example, when a change to the dataset occurs
496 an indicator can be set that shows the user that in order to save changes,
497 the transaction should be committed. Rather than doing this per dataset, this
498 can now be done per transaction.
500 5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
501 the dataset is scrolled. However, any changes to the current row are, by default,
502 discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
503 have a new property "DataSetCloseAction" that adds automatic posting of changes
504 on dataset close. If this property is set to dcDiscardChanges (default) then the
505 behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
506 then IBX will attempt to post any unsaved changes before the dataset is closed
507 (and after the BeforeClose event handler is called). The exception is when the
508 dataset is being closed as a result of a transaction rollback. In this case,
509 no action is taken and any unsaved changes are discarded. This avoids both
510 unnecessary overhead and the risk that a validation error may occur in the Post
511 raising an exception and thereby preventing a rollback.
513 6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
514 In earlier versions, the Display Width was set to the maximum byte width rather than the character
515 width. Display Widths are now corrected by dividing by the max byte width per character.
516 For UTF8 character sets, the byte width is four and hence the Display Width will be
517 the byte width divided by 4. The byte width of each character set is determined
518 dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
519 system table. (see also
521 7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
523 8. IBLookupComboEditBox: List should now always be restored to full list when the
524 control loses focus. Default Key press default interval reduced to 200ms.
526 9. DBControlGrid: Ensure that selection is changed to newly appended row, even
527 when dataset rows are less than visible rows.
529 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
530 does not exist or DataSet is empty. More responsive on dataset open. New event
531 OnRestorePosition. Column sort disabled if no header row.
533 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
534 while dataset state is dsInsert. Avoids posting errors.
536 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
537 avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
539 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
541 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
542 to solve a specific problem. That is when the dataset cursor is moved (e.g. by
543 a grid mouse click and the current row is being edited or inserted. In this case, TDataset
544 always "posts" the current record regardless or whether or not it may be more appropriate
545 to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
546 "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
547 as the first action of the "Post" method and allows the handler to convert the Post
548 into a Cancel if that is the appropriate action on moving to a different row. This is
549 achieved by returning with "CancelPost" argument set to true. Note that an exception could be
550 raised here, but it may still be more appropriate to validate a post and signal
551 a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
553 15. On Unix derived systems, the Firebird library name can now be given as a colon
554 separated list. Each library name on the list is tried in turn, in left to right
555 order with the first found being used as the firebird library. By default, on Linux,
556 the library name list is ''. This can be
557 overidden by the FBLIB environment variable or the OnGetLibraryName function.
559 Note: when using the, if you prefix the database name with "localhost:"
560 then it will still attempt to access the database via the Firebird Server and will
561 require a username and password. If only the pathname is given, then the username
562 and password should be omitted and the unix file permissions are used to grant
563 access.
565 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
567 1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
568 rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
569 that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
570 corresponds to a row of the linked DataSource. Any data aware control on the
571 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
573 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
574 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
575 takes place during database access. This may be useful when there are performance issues with
576 the change of cursor. Setting the property to false suppresses the change of cursor.
578 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
579 and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
580 Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
581 making all changes permanent immediately rather than when the transaction is explicitly
582 committed.
584 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
585 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
587 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
589 Development version only.
591 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
593 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
594 This is typically used during an "OnBeforeOpen" event handler to manipulate the
595 "Where" and "Having" clauses to implement user specified filters of arbitrary
596 complexity.
598 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
599 three new data aware controls dependent on IBX and which make use of the SQL Parser.
600 These are:
602 - TIBLookupComboEditBox
603 - TIBDynamicGrid
604 - TIBTreeview
606 TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
607 of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
608 to revise the available list and restrict it to items that are prefixed by the
609 typed text (either case sensitive or case insensitive). Autoinsert allows a
610 newly typed entry to be added to the list dataset and included in the available
611 list items.
613 TIBDynamicGrid is a TDBGrid descendent that provides for:
614 - automatic resizing of selected columns to fill the available row length
615 - automatic positioning and sizing of a "totals" control, typically at the
616 column footer, on a per column basis.
617 - DataSet resorting on header row click, sorting the dataset by the selected column.
618 A second click on the same header cell reversed the sort order.
619 - Support for a "Panel Editor". That is on clicking the indicator column, the row
620 is automatically expanded and a panel superimposed on it. The panel can have any
621 number of child controls, typically data aware controls with the same datasource
622 as the grid allowing for editing of additional fields and more complex editors.
623 - Reselection of the same row following resorting.
624 - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
625 Its properties are specified on a per column basis and allows for one or more
626 columns to have their values selected from a list provided by a dataset.
627 Autocomplete and autoinsert are also available. The existing picklist editor
628 is unaffected by the extension.
630 TIBTreeView is a data aware TCustomTreeView.
632 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
633 zero scale will no longer return an error. An Int64 will be returned instead.
635 4. TIBTransaction now has events for Before and After Transaction End and a new function
636 "GetEndAction" allowing the EndAction to be accessed by these event handlers.
638 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
639 repeated multiple times.
641 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
642 check used to get in the way of using Stored Procedures, and "Update or Insert"
643 statements.
645 7. Insert, Modify and Delete property Editors now support Query Generation from
646 Stored Procedures.
648 8. Three new examples illustrate the use of the new IB Controls
651 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
653 1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
654 setting performance. See "readme.field+param.names in the doc folder.(Thanks to
655 Gabor Boros for reporting this problem and for testing the improvements).
657 2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
658 See readme.field+param.names in the doc folder.
660 3. IBX SQL Editors will now automatically add double quotes around column names when the database
661 dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
663 4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
665 5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
666 actions.
668 6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
669 thanks to Yuriy Kopnin for pointing this out).
671 7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
673 8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
674 for both fields and parameter setting.
676 9. Changes to the Select SQL in an IBCustomDataset descendent should now be
677 visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
679 10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
680 when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
682 11. TIBTable now has a property editor for "MasterFields"
684 12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
685 GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
687 13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
688 of settings is unrecognised. Selecting this radio button has no effect on the settings.
691 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
693 1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
695 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
697 1. In a TIBCustomDataset descendent, a generator now only sets the value when
698 it is null. This allows for alternative user defined setting of the generator
700 Many thanks to Julio Jiménez for this fix
702 2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
703 and suggests that the user may have forgotten to install it.
705 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
707 1. Conditional compilation used to limit registration of TIntegerField to
708 Lazarus versions less than 1.1
710 2. When a database connection is created, character set is now by default set
711 to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
712 1250 to 1254.
715 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
717 1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
720 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
722 1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
723 Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
725 2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
726 package is changed to do this (which it should do).
728 IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
730 1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
732 2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
734 3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
736 4. Property editors should now correctly resize.
738 5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
739 (restored original functionality)
741 6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
742 library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.