ViewVC Help
View File | Revision Log | Show Annotations | Download File | View Changeset | Root Listing
Revision: 83
Committed: Mon Jan 1 11:31:15 2018 UTC (2 years, 7 months ago) by tony
File size: 37765 byte(s)
Log Message:
IBDatabaseInfo: Remove memory leak when accessing database operation counts
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.
61 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
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).
67 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
69 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
71 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
73 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
74 include remote system name.
76 2. TIBExtract: No longer include comment header and COMMIT statement for empty
77 tables when data included in output.
79 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
80 and timing information to be written to stdout. This may be used to locate
81 performance bottlenecks.
83 4. SQLParser: only call "OnChanging" event handler when value is different.
85 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
87 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
88 that BindFields is called when the query is next activated. Avoids FieldName
89 not found error.
91 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
92 purpose and allows the programmer to define any action they want for Update, Insert
93 or Delete. This may be complex SQL (similar to a Trigger), application specific
94 filtering of updates, or use of statements such as Grant or Revoke instead of
95 normal DML. See User Manual for more information.
97 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
99 1. TIBEvents: Fix uninitialised variable that could result in lost events.
101 2. TIBExtract: Added support for FB3 "USAGE" privilege.
103 3. TIBExtract: data formatted as Charset set "octets" is now output using
104 hexadecimal notation.
106 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
107 using a simple XML format.
109 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
110 grants to these objects.
112 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
113 dependency problems restoring complex databases.
115 7. TIBXScript: This component has been restructured to allow for the processing of
116 embedded XML in INSERT statements and to support interactive sources in addition
117 to non-interactive data sources such as files.
119 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
121 9. TIBXScript: ISQL compatiable Set statements are now supported:
129 SET NAMES <character set>
131 10. IBVersion unit added to hold current IBX Version Number information.
133 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
134 and domain definitions.
136 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
137 fully supported.
139 13. TIBExtract: when a database dump includes data, the generator values are now also set.
141 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
143 IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
145 See also doc/IBX4LazarusGuide.pdf for important information on
146 upgrading to IBX2.
148 1. Size property of TIBStringField is now the width in characters of the field
149 and not the byte length. This applies only to multi-byte character sets such
150 as UTF8. The original approach aligned with TStringField. However, the TStringField
151 code is not recognised as a bug and hence this change to align the behaviour.
152 The TStringField change is expected in fpc 3.2.0.
154 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
155 true (default) then Size property value saved in the lfm is ignored. Size is
156 always set from the dynamic information read from the database. It is unclear
157 why anyone would want to override this and set Size to false.
159 3. ibxscript: should now handle correctly a Case..End statement within a procedure
160 block.
162 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
163 exist when an attempt is made to connect to it (run time only) then an attempt
164 is made to create the database.
166 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
167 has been successfully created as a result of a call to CreateDatabase or when
168 creating a database after it was found not to exist.
170 6. DBControlGrid: a race condition could result in the wrong row image being
171 written to the cache. This has been avoided by a trip round the message
172 loop before rendering the row image.
174 7. DBControlGrid: It is strongly recommended not to open the source DataSet for
175 a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
176 known to risk corrupt rendering of row images when the control is first
177 displayed. If necessary use "Application.QueueAsyncCall" to delay opening
178 of the dataset (see DBControlGrid examples) until the Form's Window has been created.
180 8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
181 a TDateEdit control located on an editor panel.
183 9. TIBExtract: brought up-to-date plus many bug fixes.
185 10. DBControlGrid: Removed memory leak when updating rows.
187 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
189 IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
191 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
192 when target codepage is CP_NONE. This is a workaround for
195 2. DBLog option removed from TIBStatisticalService - not supported by server
196 since Firebird 1.5.
198 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
199 similar.
201 4. IBCodePage: updated mapping between codepages and character id.
203 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
204 Firebird. Character sets with a char width of two are not UTF16.
206 6. Strings received from the database are now always transliterated into UTF8
207 regardless of the database character set or connection character set. This
208 is for compatibility with the LCL.
210 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
212 1. IBBlob: Defer reading of blob until read method called. This avoids having to
213 read in an entire blob just to get the size of the blob. General performance
214 improvement when opening datasets containing blobs.
216 2. Clearing a Blob now sets the corresponding field's modified flag.
218 3. IBLookupCombo: When not performing auto-complete, original query sort order
219 is now used.
221 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
222 determined.
224 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
226 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
227 lazarus 1.6.0
229 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
230 compilation error.
232 IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
234 1. No character set specified for connection: when a text blob is retrieved, the
235 character set is determined by looking up the native character set using then
236 Firebird API. Otherwise a text mode blob is assumed to have the same character
237 set as the connection.
239 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
240 for Login Dialog returing a change to the database path.
242 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
243 to be changed from that given in the TIBDatabase/TIBServer component and for the
244 entered value to be saved on a project specific basis (design time only).
246 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
247 column fieldname. If they are the same then it is acts as a look up for the KeyValue
248 Otherwise, it sets the column text to the selected ListField Value.
250 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
251 column width.
253 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
254 and a case insensitive search is requested.
256 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
257 or column ListSource.
259 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
260 unprepare) when closing and the text has not changed.
262 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
263 Less likely to cause a cursor re-use error on Windows.
265 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
266 Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
268 11. TIBTreeView: Guard against nil destination on record changed
270 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
271 string type with the code page set to reflect the returned field encoding after
272 Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
273 earlier versions.
275 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
276 will now result in transliteration to the code page specified for the Firebird driver
277 if the assigned string has a different code page. FPC 3.0.0 onwards only.
279 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
280 is ignored and the lc_ctype value, when the database is opened, is set to align with
281 the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
282 platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
283 3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
284 the GETACP is used to determine the Windows code page.
286 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
287 name used as the lc_ctype when the database was opened. Only valid while the
288 Database is connected.
290 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
291 id that corresponds to the DefaultCharSetName.
293 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
295 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
296 path is given and database attach fails due to access permission issues on the
297 temp directory or security database, then the attach is retried with "localhost:"
298 prefixing the databasename. This should avoid problems when the database has to
299 be accessed by a local (e.g. classic) server and libfbembed is used.
301 2. Windows: revised search order for Firebird DLL:
302 i. The Firebird Embedded Server in the application Directory.
303 ii. If the FIREBIRD environment variable is set then the directory this
304 points to is searched for the FB Client DLL and then then underlying
305 "bin" directory.
306 iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
307 is used to locate the Firebird installation directory and the underlying
308 "bin" directory is searched for the FB Client DLL.
309 iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
310 are searched for the FB Client DLL.
311 v. The PATH Environment variable is used to search for the FB Client DLL.
312 vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
314 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
315 See doc/readme.scriptengine and example applications.
317 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
318 simplify the use of the embedded firebird server on both Linux and Windows platforms.
319 See dpc/readme.localdatabase and example applications.
321 5. IBDynamicGrid: Reordering on column header click should now also work for
322 dynamic columns.
324 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
325 between incrementing/decrementing the lock count and signalling the event.
327 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
329 1.3.2 was never formally released and only made available as beta copies.
331 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
333 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
335 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
337 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
338 i.e. when it is a calculated field
340 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
341 This problem was due to a race condition between recalculating row heights and
342 determining which row was selected by the mouse click. The row height calculation
343 is now deferred by an extra trip round the message loop allowing the row to
344 be always calculated on the current grid layout rather than risking it being
345 calculated on the grid layout after the expanded row has been shrunk.
347 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
348 Windows.
350 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
351 These properties allow the (Firebird) character set name for the field and the max number of bytes per character
352 to be determined at runtime. See doc/readme.charactersets.html.
354 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
355 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
357 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
358 TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
359 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
361 Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
362 from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
363 implies no truncation.
365 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
367 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
368 (avoids "Not in Edit Mode" error).
370 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
372 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
373 DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
375 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
377 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
379 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
381 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
383 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
385 1. OnCloseUp Event Handler added to TDBLookupProperties
387 2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
388 problem with row size when exception is called.
390 3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
392 4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
393 in a TCustomComboBox and ignores return key if in a TCustomMemo
395 5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
396 keyed in i.e. when autocomplete not performed
398 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
399 console mode applications with all LCL required functions (builtin dialogs and
400 cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
401 not included in your project, IBX should compile and link with a console mode program.
402 See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
403 console mode application or the IDE will automatically assume that your
404 application is GUI based. Instead, you should include the ibexpressconsolemode package.
406 IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
407 to use the built in dialogs and cursor management. IBDialogs is
408 included by default if "ibexpress" is in your project source's "uses" clause.
409 This should be the case for all projects created through the IDE. This is why
410 you do not want to add the ibexpress package to console mode applications. The
411 ibexpressconsolemode package has been created to allow console mode programs
412 to avoid adding LCL dependencies when using IBX, while still having the
413 unit search paths set up correctly.
415 Existing users should check to ensure that the "ibexpress" unit is included in
416 each project's source file (*.lpr).
418 You may find that in order for the IDE to recognise that ibexpressconsolemode
419 exists, you have to first open the package in the IDE and then close it. This
420 adds it to the most recently accessed packages list. To make it permanently
421 available, add the package name to lazarus' file.
423 Thanks to Julio Jiménez for suggesting support of console mode.
425 7. SQL Parser can now accept quoted strings that include new lines
427 8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
428 of text on start of edit. This is particularly useful when tabbing to a
429 column and then inserting text.
431 9. New Examples provided for IB Services and ISQLMonitor.
433 10. Fix error when writing to blob streams that recorded only the last buffer
434 write in the blob stream. In most cases, this did not cause a problem as the
435 IB Blob Stream is written in a single write. However, with the TDBImage, write
436 of a graphic type prefix was lost which caused a problem when the image could
437 not be automatically recognised.
439 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
440 already open" errors due to random numbers used for the cursor name being identical.
442 12. IBTable: corrected error that could result in an "Index out of bounds" error
443 when opening the table and the Primary Key is the last or only column in the
444 table. Thanks to Rick Hoover for the fix.
446 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
447 of "UTF-8", and update list of available database character sets. Existing
448 users should check the current lc_ctype setting in their applications.
450 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
452 1. Firebird Services: avoid List Index error when opening a service with an
453 empty Params property.
455 2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
456 Link now set up in Loaded method - avoids occasional failure to apply
457 SQL markup on initial open.
459 3. "Employees" example performance improvements when scrolling.
461 4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
462 TFrame. Force recaching of selected frame to avoid GTK race (results in a
463 random image cached).
465 5. DBControlGrid: Should now react to changes in panel height at run time.
467 6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
468 even when further rows exist.
470 7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
471 always be derived from panel height and setting this property can cause confusion.
472 Note for existing projects: to avoid a missing property error at run time,
473 each form using the DBControlGrid must be opened, updated and saved in the IDE
474 in order to remove the property value from the lfm.
477 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
479 1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
480 call Prepare before setting parameter values.
482 2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
484 3. Code tidyup and more robust handling of dsql information result vector.
486 4. Support for centralised handling of transaction status changes. TIBTransaction
487 has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
488 and "AfterExecQuery". The first three are called after the same event is called
489 for an IBCustomDataSet descendent using the Transaction. The fourth is called
490 after a call to TIBSQL.ExecQuery, again using this transaction. These new events
491 enable monitoring of transaction status changes for a given transaction to be
492 handled in a single place. For example, when a change to the dataset occurs
493 an indicator can be set that shows the user that in order to save changes,
494 the transaction should be committed. Rather than doing this per dataset, this
495 can now be done per transaction.
497 5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
498 the dataset is scrolled. However, any changes to the current row are, by default,
499 discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
500 have a new property "DataSetCloseAction" that adds automatic posting of changes
501 on dataset close. If this property is set to dcDiscardChanges (default) then the
502 behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
503 then IBX will attempt to post any unsaved changes before the dataset is closed
504 (and after the BeforeClose event handler is called). The exception is when the
505 dataset is being closed as a result of a transaction rollback. In this case,
506 no action is taken and any unsaved changes are discarded. This avoids both
507 unnecessary overhead and the risk that a validation error may occur in the Post
508 raising an exception and thereby preventing a rollback.
510 6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
511 In earlier versions, the Display Width was set to the maximum byte width rather than the character
512 width. Display Widths are now corrected by dividing by the max byte width per character.
513 For UTF8 character sets, the byte width is four and hence the Display Width will be
514 the byte width divided by 4. The byte width of each character set is determined
515 dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
516 system table. (see also
518 7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
520 8. IBLookupComboEditBox: List should now always be restored to full list when the
521 control loses focus. Default Key press default interval reduced to 200ms.
523 9. DBControlGrid: Ensure that selection is changed to newly appended row, even
524 when dataset rows are less than visible rows.
526 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
527 does not exist or DataSet is empty. More responsive on dataset open. New event
528 OnRestorePosition. Column sort disabled if no header row.
530 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
531 while dataset state is dsInsert. Avoids posting errors.
533 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
534 avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
536 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
538 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
539 to solve a specific problem. That is when the dataset cursor is moved (e.g. by
540 a grid mouse click and the current row is being edited or inserted. In this case, TDataset
541 always "posts" the current record regardless or whether or not it may be more appropriate
542 to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
543 "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
544 as the first action of the "Post" method and allows the handler to convert the Post
545 into a Cancel if that is the appropriate action on moving to a different row. This is
546 achieved by returning with "CancelPost" argument set to true. Note that an exception could be
547 raised here, but it may still be more appropriate to validate a post and signal
548 a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
550 15. On Unix derived systems, the Firebird library name can now be given as a colon
551 separated list. Each library name on the list is tried in turn, in left to right
552 order with the first found being used as the firebird library. By default, on Linux,
553 the library name list is ''. This can be
554 overidden by the FBLIB environment variable or the OnGetLibraryName function.
556 Note: when using the, if you prefix the database name with "localhost:"
557 then it will still attempt to access the database via the Firebird Server and will
558 require a username and password. If only the pathname is given, then the username
559 and password should be omitted and the unix file permissions are used to grant
560 access.
562 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
564 1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
565 rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
566 that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
567 corresponds to a row of the linked DataSource. Any data aware control on the
568 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
570 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
571 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
572 takes place during database access. This may be useful when there are performance issues with
573 the change of cursor. Setting the property to false suppresses the change of cursor.
575 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
576 and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
577 Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
578 making all changes permanent immediately rather than when the transaction is explicitly
579 committed.
581 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
582 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
584 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
586 Development version only.
588 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
590 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
591 This is typically used during an "OnBeforeOpen" event handler to manipulate the
592 "Where" and "Having" clauses to implement user specified filters of arbitrary
593 complexity.
595 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
596 three new data aware controls dependent on IBX and which make use of the SQL Parser.
597 These are:
599 - TIBLookupComboEditBox
600 - TIBDynamicGrid
601 - TIBTreeview
603 TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
604 of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
605 to revise the available list and restrict it to items that are prefixed by the
606 typed text (either case sensitive or case insensitive). Autoinsert allows a
607 newly typed entry to be added to the list dataset and included in the available
608 list items.
610 TIBDynamicGrid is a TDBGrid descendent that provides for:
611 - automatic resizing of selected columns to fill the available row length
612 - automatic positioning and sizing of a "totals" control, typically at the
613 column footer, on a per column basis.
614 - DataSet resorting on header row click, sorting the dataset by the selected column.
615 A second click on the same header cell reversed the sort order.
616 - Support for a "Panel Editor". That is on clicking the indicator column, the row
617 is automatically expanded and a panel superimposed on it. The panel can have any
618 number of child controls, typically data aware controls with the same datasource
619 as the grid allowing for editing of additional fields and more complex editors.
620 - Reselection of the same row following resorting.
621 - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
622 Its properties are specified on a per column basis and allows for one or more
623 columns to have their values selected from a list provided by a dataset.
624 Autocomplete and autoinsert are also available. The existing picklist editor
625 is unaffected by the extension.
627 TIBTreeView is a data aware TCustomTreeView.
629 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
630 zero scale will no longer return an error. An Int64 will be returned instead.
632 4. TIBTransaction now has events for Before and After Transaction End and a new function
633 "GetEndAction" allowing the EndAction to be accessed by these event handlers.
635 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
636 repeated multiple times.
638 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
639 check used to get in the way of using Stored Procedures, and "Update or Insert"
640 statements.
642 7. Insert, Modify and Delete property Editors now support Query Generation from
643 Stored Procedures.
645 8. Three new examples illustrate the use of the new IB Controls
648 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
650 1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
651 setting performance. See "readme.field+param.names in the doc folder.(Thanks to
652 Gabor Boros for reporting this problem and for testing the improvements).
654 2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
655 See readme.field+param.names in the doc folder.
657 3. IBX SQL Editors will now automatically add double quotes around column names when the database
658 dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
660 4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
662 5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
663 actions.
665 6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
666 thanks to Yuriy Kopnin for pointing this out).
668 7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
670 8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
671 for both fields and parameter setting.
673 9. Changes to the Select SQL in an IBCustomDataset descendent should now be
674 visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
676 10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
677 when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
679 11. TIBTable now has a property editor for "MasterFields"
681 12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
682 GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
684 13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
685 of settings is unrecognised. Selecting this radio button has no effect on the settings.
688 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
690 1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
692 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
694 1. In a TIBCustomDataset descendent, a generator now only sets the value when
695 it is null. This allows for alternative user defined setting of the generator
697 Many thanks to Julio Jiménez for this fix
699 2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
700 and suggests that the user may have forgotten to install it.
702 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
704 1. Conditional compilation used to limit registration of TIntegerField to
705 Lazarus versions less than 1.1
707 2. When a database connection is created, character set is now by default set
708 to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
709 1250 to 1254.
712 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
714 1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
717 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
719 1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
720 Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
722 2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
723 package is changed to do this (which it should do).
725 IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
727 1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
729 2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
731 3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
733 4. Property editors should now correctly resize.
735 5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
736 (restored original functionality)
738 6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
739 library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.