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Revision: 156
Committed: Wed Feb 28 11:14:15 2018 UTC (3 years, 2 months ago) by tony
File size: 49228 byte(s)
Log Message:
Fixes merged
Line File contents
1 IBX Change Log version (2.2-0) Wed, 28 Feb 2018 10:57:45 +0000
9 1. IBExtract: Identity columns - add additional check for null column for generator name.
11 2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
12 The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
13 information). However, this is also a very useful mechanism for returning updated computed by
14 column values. Values returned as a result of executing an Insert or Update statement
15 replace existing values in the current row for each corresponding column.
17 Previously, if a dataset's select query included read only (computed by) fields then
18 an automatic row refresh was performed after an insert or update query had been processed,
19 irrespective of the setting of the "ForcedUpdates" property. This has changed such
20 that an automatic refresh is no longer performed if an insert or update query contains
21 a returning clause that updates one or more fields on the current row. A full row
22 refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
23 field values and the select query contains read only fields. Use of Insert/update
24 returning should be significantly more efficient than executing a refresh query.
26 This behaviour change is intended to be backwards compatible and there should be no need to change
27 existing programs, other than to improve performance by using the new capability.
29 3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
30 they are called when the dataset row is being deleted, there is no value in
31 updating the current record from the query result. Instead, a new event handler
32 "OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
33 an OnDeleteReturning event handler is provided then it is called with the IResults returned
34 by the query. The event handler can then interrogate the query results and
35 perform whatever action is necessary. For example to confirm, to the user,
36 the deletion of a row with the returned values.
38 4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
39 any Computed By or Identity Columns. The IBTables example has been updated to
40 illustrate the computation of the employee Full Name on update.
42 5. TIBTable: The GeneratorField property is now published.
44 6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
45 When InsertSQL is generated, the Identity columns are not included in the list of values to
46 be inserted. A RETURNING clause is added to the insert statement to return the value of
47 each Identity column after the insert is executed.
49 7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
50 Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
51 Insert..Returning clause.
53 8. TIBGenerator: small performance improvement by not preparing query each time
54 a new value is generated.
56 9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
58 10. Property editors will now sync table name to a System Table when "Include System
59 Tables" is selected and the query is for a System Table.
61 11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
62 values are no longer converted to milliseconds from TDateTime and then back again
63 to TDateTime (the conversion to milliseconds is the default TDataset approach).
65 12. Property Editors handling of Stored Procedures.
66 * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
67 which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
68 query).
69 * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
71 13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
72 can be used to select a package. If non-empty, the stored procedure name is
73 expected to be a stored procedure defined in the specified package and the
74 generated SQL will be as required for a stored procedure located in a package.
76 14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
77 a "Package Name" drop down box to allow selection of a Firebird 3 Package from
78 which a stored procedure can be selected. With no package name selected, non-package
79 stored procedures are listed.
81 15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
82 for password on reconnect.
84 16. TIBDatabase: use IAttachment for connection default character set id, code page
85 and character set name.
87 17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
88 DB info lookups"
90 18. IBExtract: now supports DDL Triggers and Grants to DDL objects.
92 19. Add a property Editor for TIBUpdate.RefreshSQL.
94 20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
95 parameters. This stops an exception being raised when the field cannot be
96 located in the record buffer.
98 21. Property Editors now automatically include System Tables when opened and when the query table
99 is a System Table.
101 22. IBServices: SQRB and SRB buffers are now reset when service query throws an exception.
102 This avoids errors due to a stale SQRB or SRB being used for the next query.
104 23. IBServices: Service attach parameters now include "expected_db". This is used to
105 add the SPB item isc_spb_expected_db. This names a database using
106 an alternative Security Database (FB3 onwards) and allows (e.g. backup/restore) using such a
107 database. examples/services re-written to illustrate use of "expected_db".
109 24. IBServices: TIBControlAndQueryService.WriteNextChunk no longer ignores isc_info_svc_timeout.
110 This avoids truncated backups when the server returns a timeout (busy) response.
112 25. TIBDatabase: isc_dpb_page_size now supported as a database parameter when using TIBDatabase.CreateDatabase.
114 26. TIBDatabase: DatabaseName property may now be prefixed by $TEMP$ or $DATADIR$ for local
115 databasenames. These are respectively expanded to the local system's temp directory
116 (including trailing delimiter) or to a prescribed data directory (including
117 trailing delimiter). Under Unix systems the data directory is a hidden directory
118 in the user's home directory. The hidden directory name is either the string returned
119 from the SysUtils "Vendor Name" or "IBX" if empty. In either case prefixed by a '.'.
120 Under Windows, the directory is the same as the Data Directory as decribed
121 above but instead prefixed by the User's application data path. These may be
122 used to improve application portability for Personal Databases.
124 27. TIBTable: FieldDefs property is no longer published. Due to the use of TIBFieldDef
125 this has not worked for a long time and is not useful either. FieldDefs should be
126 managed using the Fields Editor as with any other dataset. To access the fields
127 editor for a TIBTable component, double click on the component. The fields editor
128 is then displayed.
130 28. TIBDatabaseInfo: new properties/function
131 * DateDBCreated (returns date/time database created)
132 * TransactionCount (returns no. of active transactions)
133 * GetDatabasePage(PageNo: integer) (returns contents of specified database page - SYSDBA only).
134 * PagesFree (Firebird 3 or later)
135 * PagesUsed (Firebird 3 or later)
136 * Encrypted (returns true if database encrypted. (Firebird 3.0.3 or later only)
137 * EncryptionKeyName (returns the name of the encryption key if any (Firebird 3.0.3 or later only)
139 29. IBServices classes now provided the decoded release number in the (array) property ServerVersionNo.
141 30. TIBSecurityService now supports display/modification of the User Admin Role (Firebird 2.5 and later).
143 31. TIBConfigService now has a procedure SetAutoAdmin(Value: boolean) to enable/disable
144 the automtic mapping of privileged OS users to the RDB$ADMIN role (Firebird 2.5 and later).
146 32. TIBBackupService: New Option - NoDBTriggers equivalent to -nodbtriggers switch introduced
147 in the gbak utility at V.2.1 to prevent database-level and transaction-level triggers from
148 firing during backup and restore.
150 33. Both TIBBackupService and TIBRestoreService now support backup/restore statistics options
151 for verbose output using the new property "StatisticsRequested".
152 see
154 34. TIBRestoreService: now supports new options RestoreMetaDataOnly (Firebird 2.5 and later).
156 35. TIBOnlineValidationService component added to the IBServices and the "Firebird Admin"
157 palette. This uses the online validation feature added in Firebird 2.5. The
158 services's properties enable inclusion/exclusion of tables and indexes using
159 regular expressions. See.
162 36. IBServices: procedure TIBConfigService.SetNoLinger added to set no linger
163 option on a database.
165 37. TIBCustomService: Assign method implemented to allow copying of service login
166 context between service API components. "Detach" method now only detaches
167 service when last reference to the service interface detaches. Tidy up of
168 code for SetActive and Attach methods including password hiding.
170 38. TIBDatabase: new properties: AuthenticationMethod and RemoteProtocol. Read only
171 and used to determine the auth method and protocol used for the connection.
173 39. TIBDatabase: ensure that SQLDialect setting is used when creating a database using
174 a Create Database Statement generated by IBX.
176 40. All IBServices now have an additional published property "PortNo". This may
177 be set to a non-standard port number when necessary. If zero then the default
178 port number is used.
180 41: TIBLookupComboeditBox: Ensure dataset updated when change selected with the keyboard
181 and not just the mouse.
183 42. TIBCustomDataset: reopen query if already active when a TIBControlLink is added.
185 43. TIBTreeview: new ImageIndexField and SelectedIndexField Property allows the
186 image index and selected image index for each node to be set from a database field.
188 44. TIBExtract: new extract type (etGrantsToUser) for use with eoDatabase. If included
189 then database schema includes grants to all users. If not present then the
190 only user grants included are those to User PUBLIC.
192 45. TIBTreeView: performance improvement. When expanding include both expanded node
193 and child nodes in dataset.
196 IBX Change Log version (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
198 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
199 changes.
201 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
202 Bug could result in truncated multi-byte character set values.
204 3. Changes consequential on moving fbintf character set utility functions from
205 IFirebirdAPI to IAttachment.
207 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
209 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
210 results in autocomplete ignoring prefix text.
212 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
213 entering a new name into the text box.
215 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
216 Firebird rather than recomputing it.
218 8. Property Editor positioning tidy up: All IBX Property editors should now be
219 screen centre. Previously some were "poDesigned" which may be inappropriate
220 for multi monitor desktops.
222 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
224 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
225 a transaction and always reset the object.
227 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
229 13. TIBXScript: Allow for override of database filename in Create Database statements.
231 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
232 to a gbak format archive.
234 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
236 16. IBLocaldb: Drop database if error creating an empty database.
238 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
239 unless selected node not in current dataset.
241 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
242 to TIBCustomService, and IBlocalDB code tidy up.
244 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
245 behaviour due to uninitialised variable.
247 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
248 integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
250 21. IBSQL: When Database changed ensure that all resources are freed.
252 22. IBCustomDataset: When database changed ensure that queries an unprepared.
254 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
255 * Line Wrap on SQL Token boundaries (on user command)
256 * auto-complete table names in drop down list of table names
257 * Double click on tablename or field name adds to SQL text
259 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
261 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
262 TVariantArray. Seems to avoid memory corruption in Windows (probably a
263 workaround for a problem in fpc 3.0.4 win64).
265 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
267 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
269 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
271 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
272 include remote system name.
274 2. TIBExtract: No longer include comment header and COMMIT statement for empty
275 tables when data included in output.
277 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
278 and timing information to be written to stdout. This may be used to locate
279 performance bottlenecks.
281 4. SQLParser: only call "OnChanging" event handler when value is different.
283 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
285 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
286 that BindFields is called when the query is next activated. Avoids FieldName
287 not found error.
289 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
290 purpose and allows the programmer to define any action they want for Update, Insert
291 or Delete. This may be complex SQL (similar to a Trigger), application specific
292 filtering of updates, or use of statements such as Grant or Revoke instead of
293 normal DML. See User Manual for more information.
295 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
297 1. TIBEvents: Fix uninitialised variable that could result in lost events.
299 2. TIBExtract: Added support for FB3 "USAGE" privilege.
301 3. TIBExtract: data formatted as Charset set "octets" is now output using
302 hexadecimal notation.
304 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
305 using a simple XML format.
307 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
308 grants to these objects.
310 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
311 dependency problems restoring complex databases.
313 7. TIBXScript: This component has been restructured to allow for the processing of
314 embedded XML in INSERT statements and to support interactive sources in addition
315 to non-interactive data sources such as files.
317 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
319 9. TIBXScript: ISQL compatiable Set statements are now supported:
327 SET NAMES <character set>
329 10. IBVersion unit added to hold current IBX Version Number information.
331 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
332 and domain definitions.
334 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
335 fully supported.
337 13. TIBExtract: when a database dump includes data, the generator values are now also set.
339 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
341 IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
343 See also doc/IBX4LazarusGuide.pdf for important information on
344 upgrading to IBX2.
346 1. Size property of TIBStringField is now the width in characters of the field
347 and not the byte length. This applies only to multi-byte character sets such
348 as UTF8. The original approach aligned with TStringField. However, the TStringField
349 code is not recognised as a bug and hence this change to align the behaviour.
350 The TStringField change is expected in fpc 3.2.0.
352 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
353 true (default) then Size property value saved in the lfm is ignored. Size is
354 always set from the dynamic information read from the database. It is unclear
355 why anyone would want to override this and set Size to false.
357 3. ibxscript: should now handle correctly a Case..End statement within a procedure
358 block.
360 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
361 exist when an attempt is made to connect to it (run time only) then an attempt
362 is made to create the database.
364 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
365 has been successfully created as a result of a call to CreateDatabase or when
366 creating a database after it was found not to exist.
368 6. DBControlGrid: a race condition could result in the wrong row image being
369 written to the cache. This has been avoided by a trip round the message
370 loop before rendering the row image.
372 7. DBControlGrid: It is strongly recommended not to open the source DataSet for
373 a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
374 known to risk corrupt rendering of row images when the control is first
375 displayed. If necessary use "Application.QueueAsyncCall" to delay opening
376 of the dataset (see DBControlGrid examples) until the Form's Window has been created.
378 8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
379 a TDateEdit control located on an editor panel.
381 9. TIBExtract: brought up-to-date plus many bug fixes.
383 10. DBControlGrid: Removed memory leak when updating rows.
385 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
387 IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
389 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
390 when target codepage is CP_NONE. This is a workaround for
393 2. DBLog option removed from TIBStatisticalService - not supported by server
394 since Firebird 1.5.
396 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
397 similar.
399 4. IBCodePage: updated mapping between codepages and character id.
401 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
402 Firebird. Character sets with a char width of two are not UTF16.
404 6. Strings received from the database are now always transliterated into UTF8
405 regardless of the database character set or connection character set. This
406 is for compatibility with the LCL.
408 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
410 1. IBBlob: Defer reading of blob until read method called. This avoids having to
411 read in an entire blob just to get the size of the blob. General performance
412 improvement when opening datasets containing blobs.
414 2. Clearing a Blob now sets the corresponding field's modified flag.
416 3. IBLookupCombo: When not performing auto-complete, original query sort order
417 is now used.
419 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
420 determined.
422 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
424 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
425 lazarus 1.6.0
427 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
428 compilation error.
430 IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
432 1. No character set specified for connection: when a text blob is retrieved, the
433 character set is determined by looking up the native character set using then
434 Firebird API. Otherwise a text mode blob is assumed to have the same character
435 set as the connection.
437 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
438 for Login Dialog returing a change to the database path.
440 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
441 to be changed from that given in the TIBDatabase/TIBServer component and for the
442 entered value to be saved on a project specific basis (design time only).
444 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
445 column fieldname. If they are the same then it is acts as a look up for the KeyValue
446 Otherwise, it sets the column text to the selected ListField Value.
448 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
449 column width.
451 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
452 and a case insensitive search is requested.
454 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
455 or column ListSource.
457 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
458 unprepare) when closing and the text has not changed.
460 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
461 Less likely to cause a cursor re-use error on Windows.
463 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
464 Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
466 11. TIBTreeView: Guard against nil destination on record changed
468 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
469 string type with the code page set to reflect the returned field encoding after
470 Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
471 earlier versions.
473 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
474 will now result in transliteration to the code page specified for the Firebird driver
475 if the assigned string has a different code page. FPC 3.0.0 onwards only.
477 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
478 is ignored and the lc_ctype value, when the database is opened, is set to align with
479 the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
480 platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
481 3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
482 the GETACP is used to determine the Windows code page.
484 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
485 name used as the lc_ctype when the database was opened. Only valid while the
486 Database is connected.
488 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
489 id that corresponds to the DefaultCharSetName.
491 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
493 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
494 path is given and database attach fails due to access permission issues on the
495 temp directory or security database, then the attach is retried with "localhost:"
496 prefixing the databasename. This should avoid problems when the database has to
497 be accessed by a local (e.g. classic) server and libfbembed is used.
499 2. Windows: revised search order for Firebird DLL:
500 i. The Firebird Embedded Server in the application Directory.
501 ii. If the FIREBIRD environment variable is set then the directory this
502 points to is searched for the FB Client DLL and then then underlying
503 "bin" directory.
504 iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
505 is used to locate the Firebird installation directory and the underlying
506 "bin" directory is searched for the FB Client DLL.
507 iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
508 are searched for the FB Client DLL.
509 v. The PATH Environment variable is used to search for the FB Client DLL.
510 vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
512 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
513 See doc/readme.scriptengine and example applications.
515 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
516 simplify the use of the embedded firebird server on both Linux and Windows platforms.
517 See dpc/readme.localdatabase and example applications.
519 5. IBDynamicGrid: Reordering on column header click should now also work for
520 dynamic columns.
522 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
523 between incrementing/decrementing the lock count and signalling the event.
525 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
527 1.3.2 was never formally released and only made available as beta copies.
529 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
531 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
533 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
535 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
536 i.e. when it is a calculated field
538 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
539 This problem was due to a race condition between recalculating row heights and
540 determining which row was selected by the mouse click. The row height calculation
541 is now deferred by an extra trip round the message loop allowing the row to
542 be always calculated on the current grid layout rather than risking it being
543 calculated on the grid layout after the expanded row has been shrunk.
545 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
546 Windows.
548 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
549 These properties allow the (Firebird) character set name for the field and the max number of bytes per character
550 to be determined at runtime. See doc/readme.charactersets.html.
552 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
553 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
555 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
556 TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
557 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
559 Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
560 from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
561 implies no truncation.
563 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
565 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
566 (avoids "Not in Edit Mode" error).
568 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
570 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
571 DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
573 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
575 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
577 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
579 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
581 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
583 1. OnCloseUp Event Handler added to TDBLookupProperties
585 2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
586 problem with row size when exception is called.
588 3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
590 4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
591 in a TCustomComboBox and ignores return key if in a TCustomMemo
593 5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
594 keyed in i.e. when autocomplete not performed
596 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
597 console mode applications with all LCL required functions (builtin dialogs and
598 cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
599 not included in your project, IBX should compile and link with a console mode program.
600 See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
601 console mode application or the IDE will automatically assume that your
602 application is GUI based. Instead, you should include the ibexpressconsolemode package.
604 IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
605 to use the built in dialogs and cursor management. IBDialogs is
606 included by default if "ibexpress" is in your project source's "uses" clause.
607 This should be the case for all projects created through the IDE. This is why
608 you do not want to add the ibexpress package to console mode applications. The
609 ibexpressconsolemode package has been created to allow console mode programs
610 to avoid adding LCL dependencies when using IBX, while still having the
611 unit search paths set up correctly.
613 Existing users should check to ensure that the "ibexpress" unit is included in
614 each project's source file (*.lpr).
616 You may find that in order for the IDE to recognise that ibexpressconsolemode
617 exists, you have to first open the package in the IDE and then close it. This
618 adds it to the most recently accessed packages list. To make it permanently
619 available, add the package name to lazarus' file.
621 Thanks to Julio Jiménez for suggesting support of console mode.
623 7. SQL Parser can now accept quoted strings that include new lines
625 8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
626 of text on start of edit. This is particularly useful when tabbing to a
627 column and then inserting text.
629 9. New Examples provided for IB Services and ISQLMonitor.
631 10. Fix error when writing to blob streams that recorded only the last buffer
632 write in the blob stream. In most cases, this did not cause a problem as the
633 IB Blob Stream is written in a single write. However, with the TDBImage, write
634 of a graphic type prefix was lost which caused a problem when the image could
635 not be automatically recognised.
637 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
638 already open" errors due to random numbers used for the cursor name being identical.
640 12. IBTable: corrected error that could result in an "Index out of bounds" error
641 when opening the table and the Primary Key is the last or only column in the
642 table. Thanks to Rick Hoover for the fix.
644 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
645 of "UTF-8", and update list of available database character sets. Existing
646 users should check the current lc_ctype setting in their applications.
648 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
650 1. Firebird Services: avoid List Index error when opening a service with an
651 empty Params property.
653 2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
654 Link now set up in Loaded method - avoids occasional failure to apply
655 SQL markup on initial open.
657 3. "Employees" example performance improvements when scrolling.
659 4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
660 TFrame. Force recaching of selected frame to avoid GTK race (results in a
661 random image cached).
663 5. DBControlGrid: Should now react to changes in panel height at run time.
665 6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
666 even when further rows exist.
668 7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
669 always be derived from panel height and setting this property can cause confusion.
670 Note for existing projects: to avoid a missing property error at run time,
671 each form using the DBControlGrid must be opened, updated and saved in the IDE
672 in order to remove the property value from the lfm.
675 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
677 1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
678 call Prepare before setting parameter values.
680 2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
682 3. Code tidyup and more robust handling of dsql information result vector.
684 4. Support for centralised handling of transaction status changes. TIBTransaction
685 has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
686 and "AfterExecQuery". The first three are called after the same event is called
687 for an IBCustomDataSet descendent using the Transaction. The fourth is called
688 after a call to TIBSQL.ExecQuery, again using this transaction. These new events
689 enable monitoring of transaction status changes for a given transaction to be
690 handled in a single place. For example, when a change to the dataset occurs
691 an indicator can be set that shows the user that in order to save changes,
692 the transaction should be committed. Rather than doing this per dataset, this
693 can now be done per transaction.
695 5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
696 the dataset is scrolled. However, any changes to the current row are, by default,
697 discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
698 have a new property "DataSetCloseAction" that adds automatic posting of changes
699 on dataset close. If this property is set to dcDiscardChanges (default) then the
700 behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
701 then IBX will attempt to post any unsaved changes before the dataset is closed
702 (and after the BeforeClose event handler is called). The exception is when the
703 dataset is being closed as a result of a transaction rollback. In this case,
704 no action is taken and any unsaved changes are discarded. This avoids both
705 unnecessary overhead and the risk that a validation error may occur in the Post
706 raising an exception and thereby preventing a rollback.
708 6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
709 In earlier versions, the Display Width was set to the maximum byte width rather than the character
710 width. Display Widths are now corrected by dividing by the max byte width per character.
711 For UTF8 character sets, the byte width is four and hence the Display Width will be
712 the byte width divided by 4. The byte width of each character set is determined
713 dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
714 system table. (see also
716 7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
718 8. IBLookupComboEditBox: List should now always be restored to full list when the
719 control loses focus. Default Key press default interval reduced to 200ms.
721 9. DBControlGrid: Ensure that selection is changed to newly appended row, even
722 when dataset rows are less than visible rows.
724 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
725 does not exist or DataSet is empty. More responsive on dataset open. New event
726 OnRestorePosition. Column sort disabled if no header row.
728 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
729 while dataset state is dsInsert. Avoids posting errors.
731 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
732 avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
734 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
736 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
737 to solve a specific problem. That is when the dataset cursor is moved (e.g. by
738 a grid mouse click and the current row is being edited or inserted. In this case, TDataset
739 always "posts" the current record regardless or whether or not it may be more appropriate
740 to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
741 "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
742 as the first action of the "Post" method and allows the handler to convert the Post
743 into a Cancel if that is the appropriate action on moving to a different row. This is
744 achieved by returning with "CancelPost" argument set to true. Note that an exception could be
745 raised here, but it may still be more appropriate to validate a post and signal
746 a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
748 15. On Unix derived systems, the Firebird library name can now be given as a colon
749 separated list. Each library name on the list is tried in turn, in left to right
750 order with the first found being used as the firebird library. By default, on Linux,
751 the library name list is ''. This can be
752 overidden by the FBLIB environment variable or the OnGetLibraryName function.
754 Note: when using the, if you prefix the database name with "localhost:"
755 then it will still attempt to access the database via the Firebird Server and will
756 require a username and password. If only the pathname is given, then the username
757 and password should be omitted and the unix file permissions are used to grant
758 access.
760 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
762 1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
763 rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
764 that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
765 corresponds to a row of the linked DataSource. Any data aware control on the
766 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
768 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
769 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
770 takes place during database access. This may be useful when there are performance issues with
771 the change of cursor. Setting the property to false suppresses the change of cursor.
773 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
774 and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
775 Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
776 making all changes permanent immediately rather than when the transaction is explicitly
777 committed.
779 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
780 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
782 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
784 Development version only.
786 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
788 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
789 This is typically used during an "OnBeforeOpen" event handler to manipulate the
790 "Where" and "Having" clauses to implement user specified filters of arbitrary
791 complexity.
793 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
794 three new data aware controls dependent on IBX and which make use of the SQL Parser.
795 These are:
797 - TIBLookupComboEditBox
798 - TIBDynamicGrid
799 - TIBTreeview
801 TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
802 of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
803 to revise the available list and restrict it to items that are prefixed by the
804 typed text (either case sensitive or case insensitive). Autoinsert allows a
805 newly typed entry to be added to the list dataset and included in the available
806 list items.
808 TIBDynamicGrid is a TDBGrid descendent that provides for:
809 - automatic resizing of selected columns to fill the available row length
810 - automatic positioning and sizing of a "totals" control, typically at the
811 column footer, on a per column basis.
812 - DataSet resorting on header row click, sorting the dataset by the selected column.
813 A second click on the same header cell reversed the sort order.
814 - Support for a "Panel Editor". That is on clicking the indicator column, the row
815 is automatically expanded and a panel superimposed on it. The panel can have any
816 number of child controls, typically data aware controls with the same datasource
817 as the grid allowing for editing of additional fields and more complex editors.
818 - Reselection of the same row following resorting.
819 - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
820 Its properties are specified on a per column basis and allows for one or more
821 columns to have their values selected from a list provided by a dataset.
822 Autocomplete and autoinsert are also available. The existing picklist editor
823 is unaffected by the extension.
825 TIBTreeView is a data aware TCustomTreeView.
827 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
828 zero scale will no longer return an error. An Int64 will be returned instead.
830 4. TIBTransaction now has events for Before and After Transaction End and a new function
831 "GetEndAction" allowing the EndAction to be accessed by these event handlers.
833 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
834 repeated multiple times.
836 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
837 check used to get in the way of using Stored Procedures, and "Update or Insert"
838 statements.
840 7. Insert, Modify and Delete property Editors now support Query Generation from
841 Stored Procedures.
843 8. Three new examples illustrate the use of the new IB Controls
846 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
848 1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
849 setting performance. See "readme.field+param.names in the doc folder.(Thanks to
850 Gabor Boros for reporting this problem and for testing the improvements).
852 2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
853 See readme.field+param.names in the doc folder.
855 3. IBX SQL Editors will now automatically add double quotes around column names when the database
856 dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
858 4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
860 5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
861 actions.
863 6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
864 thanks to Yuriy Kopnin for pointing this out).
866 7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
868 8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
869 for both fields and parameter setting.
871 9. Changes to the Select SQL in an IBCustomDataset descendent should now be
872 visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
874 10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
875 when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
877 11. TIBTable now has a property editor for "MasterFields"
879 12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
880 GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
882 13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
883 of settings is unrecognised. Selecting this radio button has no effect on the settings.
886 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
888 1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
890 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
892 1. In a TIBCustomDataset descendent, a generator now only sets the value when
893 it is null. This allows for alternative user defined setting of the generator
895 Many thanks to Julio Jiménez for this fix
897 2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
898 and suggests that the user may have forgotten to install it.
900 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
902 1. Conditional compilation used to limit registration of TIntegerField to
903 Lazarus versions less than 1.1
905 2. When a database connection is created, character set is now by default set
906 to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
907 1250 to 1254.
910 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
912 1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
915 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
917 1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
918 Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
920 2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
921 package is changed to do this (which it should do).
923 IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
925 1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
927 2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
929 3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
931 4. Property editors should now correctly resize.
933 5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
934 (restored original functionality)
936 6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
937 library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.