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Revision: 104
Committed: Thu Jan 18 14:37:29 2018 UTC (6 years, 2 months ago) by tony
File size: 39037 byte(s)
Log Message:
Documentation Updates

File Contents

# User Rev Content
1 tony 104 IBX Change Log version (2.1-1) Sun, 07 Jan 2018 15:15:13 +0000
2 tony 101
3     1. IBExtract: Identity columns - add addition check for null column for generator name.
4    
5     2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
6     The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
7     information). Values returned as a result of executing an Insert or Update statement
8     replace existing values in the current row for each corresponding column.
9    
10     3. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
11     When InsertSQL is generated, the Identity columns are not included in the list of values to
12     be inserted. A RETURNING clause is added to the insert statement to return the value of
13     each Identity column after the insert is executed.
14    
15 tony 104 4. TIBGenerator: small performance improvement by not preparing query each time
16     a new number is generated.
17    
18     5. TIBSQL: Free resources when transaction changed.
19    
20 tony 90 IBX Change Log version (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
21 tony 56
22     1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
23     changes.
24    
25 tony 58 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
26     Bug could result in truncated multi-byte character set values.
27    
28 tony 60 3. Changes consequential on moving fbintf character set utility functions from
29     IFirebirdAPI to IAttachment.
30    
31 tony 62 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
32    
33 tony 64 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
34     results in autocomplete ignoring prefix text.
35    
36 tony 65 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
37     entering a new name into the text box.
38    
39 tony 66 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
40     Firebird rather than recomputing it.
41    
42 tony 67 8. Property Editor positioning tidy up: All IBX Property editors should now be
43     screen centre. Previously some were "poDesigned" which may be inappropriate
44     for multi monitor desktops.
45    
46 tony 80 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
47    
48     11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
49     a transaction and always reset the object.
50    
51     12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
52    
53     13. TIBXScript: Allow for override of database filename in Create Database statements.
54    
55     14. IBLocaldb: Support initialisation of the database from an SQL script in addition
56     to a gbak format archive.
57    
58     15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
59    
60     16. IBLocaldb: Drop database if error creating an empty database.
61    
62     17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
63     unless selected node not in current dataset.
64    
65     18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
66     to TIBCustomService, and IBlocalDB code tidy up.
67    
68     19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
69     behaviour due to uninitialised variable.
70    
71     20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
72     integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
73    
74     21. IBSQL: When Database changed ensure that all resources are freed.
75    
76     22. IBCustomDataset: When database changed ensure that queries an unprepared.
77    
78 tony 84 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
79     * Line Wrap on SQL Token boundaries (on user command)
80     * auto-complete table names in drop down list of table names
81     * Double click on tablename or field name adds to SQL text
82 tony 80
83     24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
84    
85     25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
86     TVariantArray. Seems to avoid memory corruption in Windows (probably a
87     workaround for a problem in fpc 3.0.4 win64).
88    
89     26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
90    
91 tony 83 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
92    
93 tony 51 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
94 tony 49
95 tony 51 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
96 tony 49 include remote system name.
97    
98     2. TIBExtract: No longer include comment header and COMMIT statement for empty
99     tables when data included in output.
100    
101     3. Profiling: IBSQL now has conditional compilation flags to enable query performance
102     and timing information to be written to stdout. This may be used to locate
103     performance bottlenecks.
104    
105     4. SQLParser: only call "OnChanging" event handler when value is different.
106    
107     5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
108    
109 tony 50 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
110     that BindFields is called when the query is next activated. Avoids FieldName
111     not found error.
112    
113 tony 80 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
114     purpose and allows the programmer to define any action they want for Update, Insert
115     or Delete. This may be complex SQL (similar to a Trigger), application specific
116     filtering of updates, or use of statements such as Grant or Revoke instead of
117     normal DML. See User Manual for more information.
118    
119 tony 47 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
120 tony 45
121 tony 47 1. TIBEvents: Fix uninitialised variable that could result in lost events.
122 tony 45
123 tony 47 2. TIBExtract: Added support for FB3 "USAGE" privilege.
124    
125     3. TIBExtract: data formatted as Charset set "octets" is now output using
126     hexadecimal notation.
127    
128     4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
129     using a simple XML format.
130    
131     5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
132     grants to these objects.
133    
134     6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
135     dependency problems restoring complex databases.
136    
137     7. TIBXScript: This component has been restructured to allow for the processing of
138     embedded XML in INSERT statements and to support interactive sources in addition
139     to non-interactive data sources such as files.
140    
141     8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
142    
143     9. TIBXScript: ISQL compatiable Set statements are now supported:
144     SET SQL DIALECT
145     SET TERM
146     SET AUTODDL
147     SET BAIL
148     SET ECHO
149     SET COUNT
150     SET STATS
151     SET NAMES <character set>
152    
153     10. IBVersion unit added to hold current IBX Version Number information.
154    
155     11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
156     and domain definitions.
157    
158     12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
159     fully supported.
160    
161     13. TIBExtract: when a database dump includes data, the generator values are now also set.
162    
163     14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
164    
165     IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
166    
167 tony 50 See also doc/IBX4LazarusGuide.pdf for important information on
168 tony 45 upgrading to IBX2.
169    
170     1. Size property of TIBStringField is now the width in characters of the field
171     and not the byte length. This applies only to multi-byte character sets such
172     as UTF8. The original approach aligned with TStringField. However, the TStringField
173     code is not recognised as a bug and hence this change to align the behaviour.
174     The TStringField change is expected in fpc 3.2.0.
175    
176     2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
177     true (default) then Size property value saved in the lfm is ignored. Size is
178     always set from the dynamic information read from the database. It is unclear
179     why anyone would want to override this and set Size to false.
180    
181     3. ibxscript: should now handle correctly a Case..End statement within a procedure
182     block.
183    
184     4. IBDatabase: new property - CreateIfNotExists. If true and database does not
185     exist when an attempt is made to connect to it (run time only) then an attempt
186     is made to create the database.
187    
188     5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
189     has been successfully created as a result of a call to CreateDatabase or when
190     creating a database after it was found not to exist.
191    
192     6. DBControlGrid: a race condition could result in the wrong row image being
193     written to the cache. This has been avoided by a trip round the message
194     loop before rendering the row image.
195    
196     7. DBControlGrid: It is strongly recommended not to open the source DataSet for
197     a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
198     known to risk corrupt rendering of row images when the control is first
199     displayed. If necessary use "Application.QueueAsyncCall" to delay opening
200     of the dataset (see DBControlGrid examples) until the Form's Window has been created.
201    
202     8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
203     a TDateEdit control located on an editor panel.
204    
205     9. TIBExtract: brought up-to-date plus many bug fixes.
206    
207     10. DBControlGrid: Removed memory leak when updating rows.
208    
209     11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
210    
211 tony 43 IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
212    
213     1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
214     when target codepage is CP_NONE. This is a workaround for
215     http://bugs.freepascal.org/view.php?id=30622.
216    
217     2. DBLog option removed from TIBStatisticalService - not supported by server
218     since Firebird 1.5.
219    
220     3. ibxscript: An error is no longer generated for "on commit preserve rows" or
221     similar.
222    
223     4. IBCodePage: updated mapping between codepages and character id.
224    
225     5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
226     Firebird. Character sets with a char width of two are not UTF16.
227    
228     6. Strings received from the database are now always transliterated into UTF8
229     regardless of the database character set or connection character set. This
230     is for compatibility with the LCL.
231    
232 tony 45 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
233 tony 41
234     1. IBBlob: Defer reading of blob until read method called. This avoids having to
235     read in an entire blob just to get the size of the blob. General performance
236     improvement when opening datasets containing blobs.
237    
238     2. Clearing a Blob now sets the corresponding field's modified flag.
239    
240     3. IBLookupCombo: When not performing auto-complete, original query sort order
241     is now used.
242    
243     4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
244     determined.
245    
246     5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
247    
248     6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
249     lazarus 1.6.0
250    
251     7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
252     compilation error.
253    
254 tony 39 IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
255    
256     1. No character set specified for connection: when a text blob is retrieved, the
257     character set is determined by looking up the native character set using then
258     Firebird API. Otherwise a text mode blob is assumed to have the same character
259     set as the connection.
260    
261     2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
262     for Login Dialog returing a change to the database path.
263    
264     3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
265     to be changed from that given in the TIBDatabase/TIBServer component and for the
266     entered value to be saved on a project specific basis (design time only).
267    
268     4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
269     column fieldname. If they are the same then it is acts as a look up for the KeyValue
270     Otherwise, it sets the column text to the selected ListField Value.
271    
272     5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
273     column width.
274    
275     6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
276     and a case insensitive search is requested.
277    
278     7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
279     or column ListSource.
280    
281     8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
282     unprepare) when closing and the text has not changed.
283    
284     9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
285     Less likely to cause a cursor re-use error on Windows.
286    
287     10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
288     Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
289    
290     11. TIBTreeView: Guard against nil destination on record changed
291    
292     12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
293     string type with the code page set to reflect the returned field encoding after
294     Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
295     earlier versions.
296    
297     13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
298     will now result in transliteration to the code page specified for the Firebird driver
299     if the assigned string has a different code page. FPC 3.0.0 onwards only.
300    
301     14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
302     is ignored and the lc_ctype value, when the database is opened, is set to align with
303     the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
304     platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
305     3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
306     the GETACP is used to determine the Windows code page.
307    
308     15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
309     name used as the lc_ctype when the database was opened. Only valid while the
310     Database is connected.
311    
312     16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
313     id that corresponds to the DefaultCharSetName.
314    
315 tony 37 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
316    
317     1. Unix: If Firebird Embedded Server shared object is loaded and a local database
318     path is given and database attach fails due to access permission issues on the
319     temp directory or security database, then the attach is retried with "localhost:"
320     prefixing the databasename. This should avoid problems when the database has to
321     be accessed by a local (e.g. classic) server and libfbembed is used.
322    
323     2. Windows: revised search order for Firebird DLL:
324     i. The Firebird Embedded Server in the application Directory.
325     ii. If the FIREBIRD environment variable is set then the directory this
326     points to is searched for the FB Client DLL and then then underlying
327     "bin" directory.
328     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
329     is used to locate the Firebird installation directory and the underlying
330     "bin" directory is searched for the FB Client DLL.
331     iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
332     are searched for the FB Client DLL.
333     v. The PATH Environment variable is used to search for the FB Client DLL.
334     vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
335    
336     3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
337     See doc/readme.scriptengine and example applications.
338    
339     4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
340     simplify the use of the embedded firebird server on both Linux and Windows platforms.
341     See dpc/readme.localdatabase and example applications.
342    
343     5. IBDynamicGrid: Reordering on column header click should now also work for
344     dynamic columns.
345    
346     6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
347     between incrementing/decrementing the lock count and signalling the event.
348    
349 tony 35 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
350    
351 tony 37 1.3.2 was never formally released and only made available as beta copies.
352    
353 tony 35 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
354    
355     2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
356    
357     3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
358    
359     4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
360     i.e. when it is a calculated field
361    
362     5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
363     This problem was due to a race condition between recalculating row heights and
364     determining which row was selected by the mouse click. The row height calculation
365     is now deferred by an extra trip round the message loop allowing the row to
366     be always calculated on the current grid layout rather than risking it being
367     calculated on the grid layout after the expanded row has been shrunk.
368    
369     6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
370     Windows.
371    
372     7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
373     These properties allow the (Firebird) character set name for the field and the max number of bytes per character
374 tony 37 to be determined at runtime. See doc/readme.charactersets.html.
375 tony 35
376     8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
377 tony 37 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
378 tony 35
379     9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
380     TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
381 tony 37 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
382 tony 35
383     Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
384     from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
385     implies no truncation.
386    
387     10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
388    
389     11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
390     (avoids "Not in Edit Mode" error).
391    
392     12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
393    
394     13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
395     DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
396    
397     14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
398    
399     15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
400    
401     16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
402    
403     17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
404    
405 tony 33 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
406 tony 31
407     1. OnCloseUp Event Handler added to TDBLookupProperties
408    
409     2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
410     problem with row size when exception is called.
411    
412     3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
413    
414     4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
415     in a TCustomComboBox and ignores return key if in a TCustomMemo
416    
417     5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
418     keyed in i.e. when autocomplete not performed
419    
420 tony 33 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
421     console mode applications with all LCL required functions (builtin dialogs and
422     cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
423     not included in your project, IBX should compile and link with a console mode program.
424     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
425     console mode application or the IDE will automatically assume that your
426     application is GUI based. Instead, you should include the ibexpressconsolemode package.
427 tony 31
428     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
429     to use the built in dialogs and cursor management. IBDialogs is
430 tony 33 included by default if "ibexpress" is in your project source's "uses" clause.
431 tony 31 This should be the case for all projects created through the IDE. This is why
432     you do not want to add the ibexpress package to console mode applications. The
433     ibexpressconsolemode package has been created to allow console mode programs
434     to avoid adding LCL dependencies when using IBX, while still having the
435     unit search paths set up correctly.
436    
437 tony 33 Existing users should check to ensure that the "ibexpress" unit is included in
438     each project's source file (*.lpr).
439    
440 tony 31 You may find that in order for the IDE to recognise that ibexpressconsolemode
441     exists, you have to first open the package in the IDE and then close it. This
442     adds it to the most recently accessed packages list. To make it permanently
443     available, add the package name to lazarus' staticpackages.inc file.
444    
445 tony 33 Thanks to Julio Jiménez for suggesting support of console mode.
446 tony 31
447     7. SQL Parser can now accept quoted strings that include new lines
448    
449     8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
450     of text on start of edit. This is particularly useful when tabbing to a
451     column and then inserting text.
452    
453     9. New Examples provided for IB Services and ISQLMonitor.
454    
455     10. Fix error when writing to blob streams that recorded only the last buffer
456     write in the blob stream. In most cases, this did not cause a problem as the
457     IB Blob Stream is written in a single write. However, with the TDBImage, write
458     of a graphic type prefix was lost which caused a problem when the image could
459     not be automatically recognised.
460    
461     11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
462 tony 33 already open" errors due to random numbers used for the cursor name being identical.
463 tony 31
464     12. IBTable: corrected error that could result in an "Index out of bounds" error
465     when opening the table and the Primary Key is the last or only column in the
466     table. Thanks to Rick Hoover for the fix.
467    
468 tony 33 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
469     of "UTF-8", and update list of available database character sets. Existing
470     users should check the current lc_ctype setting in their applications.
471 tony 29
472 tony 33 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
473    
474 tony 29 1. Firebird Services: avoid List Index error when opening a service with an
475     empty Params property.
476    
477     2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
478     Link now set up in Loaded method - avoids occasional failure to apply
479     SQL markup on initial open.
480    
481     3. "Employees" example performance improvements when scrolling.
482    
483     4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
484     TFrame. Force recaching of selected frame to avoid GTK race (results in a
485     random image cached).
486    
487     5. DBControlGrid: Should now react to changes in panel height at run time.
488    
489     6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
490     even when further rows exist.
491    
492     7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
493     always be derived from panel height and setting this property can cause confusion.
494     Note for existing projects: to avoid a missing property error at run time,
495     each form using the DBControlGrid must be opened, updated and saved in the IDE
496     in order to remove the property value from the lfm.
497    
498    
499 tony 33 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
500 tony 27
501     1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
502     call Prepare before setting parameter values.
503    
504     2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
505    
506     3. Code tidyup and more robust handling of dsql information result vector.
507    
508     4. Support for centralised handling of transaction status changes. TIBTransaction
509     has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
510     and "AfterExecQuery". The first three are called after the same event is called
511     for an IBCustomDataSet descendent using the Transaction. The fourth is called
512     after a call to TIBSQL.ExecQuery, again using this transaction. These new events
513     enable monitoring of transaction status changes for a given transaction to be
514     handled in a single place. For example, when a change to the dataset occurs
515     an indicator can be set that shows the user that in order to save changes,
516     the transaction should be committed. Rather than doing this per dataset, this
517     can now be done per transaction.
518    
519     5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
520     the dataset is scrolled. However, any changes to the current row are, by default,
521     discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
522     have a new property "DataSetCloseAction" that adds automatic posting of changes
523     on dataset close. If this property is set to dcDiscardChanges (default) then the
524     behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
525     then IBX will attempt to post any unsaved changes before the dataset is closed
526     (and after the BeforeClose event handler is called). The exception is when the
527     dataset is being closed as a result of a transaction rollback. In this case,
528     no action is taken and any unsaved changes are discarded. This avoids both
529     unnecessary overhead and the risk that a validation error may occur in the Post
530     raising an exception and thereby preventing a rollback.
531    
532     6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
533     In earlier versions, the Display Width was set to the maximum byte width rather than the character
534     width. Display Widths are now corrected by dividing by the max byte width per character.
535     For UTF8 character sets, the byte width is four and hence the Display Width will be
536     the byte width divided by 4. The byte width of each character set is determined
537     dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
538     system table. (see also http://bugs.freepascal.org/view.php?id=27766).
539    
540     7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
541    
542     8. IBLookupComboEditBox: List should now always be restored to full list when the
543     control loses focus. Default Key press default interval reduced to 200ms.
544    
545     9. DBControlGrid: Ensure that selection is changed to newly appended row, even
546     when dataset rows are less than visible rows.
547    
548     10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
549     does not exist or DataSet is empty. More responsive on dataset open. New event
550     OnRestorePosition. Column sort disabled if no header row.
551    
552     11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
553     while dataset state is dsInsert. Avoids posting errors.
554    
555     12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
556     avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
557    
558     13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
559    
560     14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
561     to solve a specific problem. That is when the dataset cursor is moved (e.g. by
562     a grid mouse click and the current row is being edited or inserted. In this case, TDataset
563     always "posts" the current record regardless or whether or not it may be more appropriate
564     to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
565     "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
566     as the first action of the "Post" method and allows the handler to convert the Post
567     into a Cancel if that is the appropriate action on moving to a different row. This is
568     achieved by returning with "CancelPost" argument set to true. Note that an exception could be
569     raised here, but it may still be more appropriate to validate a post and signal
570     a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
571    
572     15. On Unix derived systems, the Firebird library name can now be given as a colon
573     separated list. Each library name on the list is tried in turn, in left to right
574     order with the first found being used as the firebird library. By default, on Linux,
575     the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
576     overidden by the FBLIB environment variable or the OnGetLibraryName function.
577    
578     Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
579     then it will still attempt to access the database via the Firebird Server and will
580     require a username and password. If only the pathname is given, then the username
581     and password should be omitted and the unix file permissions are used to grant
582     access.
583    
584 tony 33 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
585 tony 23
586     1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
587     rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
588     that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
589 tony 27 corresponds to a row of the linked DataSource. Any data aware control on the
590 tony 23 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
591    
592     2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
593 tony 25 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
594 tony 23 takes place during database access. This may be useful when there are performance issues with
595     the change of cursor. Setting the property to false suppresses the change of cursor.
596    
597     3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
598     and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
599     Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
600     making all changes permanent immediately rather than when the transaction is explicitly
601     committed.
602    
603 tony 25 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
604 tony 27 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
605 tony 23
606 tony 33 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
607 tony 25
608     Development version only.
609    
610 tony 33 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
611 tony 21
612     1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
613     This is typically used during an "OnBeforeOpen" event handler to manipulate the
614     "Where" and "Having" clauses to implement user specified filters of arbitrary
615     complexity.
616    
617     2. A new Component Palette entry "Firebird Data Controls" is now available. This has
618     three new data aware controls dependent on IBX and which make use of the SQL Parser.
619     These are:
620    
621     - TIBLookupComboEditBox
622     - TIBDynamicGrid
623     - TIBTreeview
624    
625     TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
626     of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
627     to revise the available list and restrict it to items that are prefixed by the
628 tony 25 typed text (either case sensitive or case insensitive). Autoinsert allows a
629 tony 21 newly typed entry to be added to the list dataset and included in the available
630     list items.
631    
632     TIBDynamicGrid is a TDBGrid descendent that provides for:
633     - automatic resizing of selected columns to fill the available row length
634     - automatic positioning and sizing of a "totals" control, typically at the
635     column footer, on a per column basis.
636     - DataSet resorting on header row click, sorting the dataset by the selected column.
637     A second click on the same header cell reversed the sort order.
638     - Support for a "Panel Editor". That is on clicking the indicator column, the row
639     is automatically expanded and a panel superimposed on it. The panel can have any
640     number of child controls, typically data aware controls with the same datasource
641     as the grid allowing for editing of additional fields and more complex editors.
642     - Reselection of the same row following resorting.
643     - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
644     Its properties are specified on a per column basis and allows for one or more
645     columns to have their values selected from a list provided by a dataset.
646     Autocomplete and autoinsert are also available. The existing picklist editor
647     is unaffected by the extension.
648    
649     TIBTreeView is a data aware TCustomTreeView.
650    
651     3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
652     zero scale will no longer return an error. An Int64 will be returned instead.
653    
654     4. TIBTransaction now has events for Before and After Transaction End and a new function
655     "GetEndAction" allowing the EndAction to be accessed by these event handlers.
656    
657     5. TIBQuery can now handle correctly queries which contain the same keyword parameter
658     repeated multiple times.
659    
660     6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
661     check used to get in the way of using Stored Procedures, and "Update or Insert"
662     statements.
663    
664     7. Insert, Modify and Delete property Editors now support Query Generation from
665     Stored Procedures.
666    
667     8. Three new examples illustrate the use of the new IB Controls
668    
669    
670 tony 33 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
671 tony 19
672     1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
673     setting performance. See "readme.field+param.names in the doc folder.(Thanks to
674     Gabor Boros for reporting this problem and for testing the improvements).
675    
676     2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
677     See readme.field+param.names in the doc folder.
678    
679     3. IBX SQL Editors will now automatically add double quotes around column names when the database
680     dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
681    
682     4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
683    
684     5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
685     actions.
686    
687     6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
688     thanks to Yuriy Kopnin for pointing this out).
689    
690     7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
691    
692     8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
693     for both fields and parameter setting.
694    
695     9. Changes to the Select SQL in an IBCustomDataset descendent should now be
696     visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
697    
698     10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
699     when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
700    
701     11. TIBTable now has a property editor for "MasterFields"
702    
703     12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
704     GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
705    
706     13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
707     of settings is unrecognised. Selecting this radio button has no effect on the settings.
708    
709    
710 tony 17 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
711    
712     1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
713    
714 tony 15 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
715    
716     1. In a TIBCustomDataset descendent, a generator now only sets the value when
717     it is null. This allows for alternative user defined setting of the generator
718    
719     Many thanks to Julio Jiménez for this fix
720    
721     2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
722     and suggests that the user may have forgotten to install it.
723    
724 tony 13 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
725    
726     1. Conditional compilation used to limit registration of TIntegerField to
727     Lazarus versions less than 1.1
728    
729     2. When a database connection is created, character set is now by default set
730     to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
731     1250 to 1254.
732    
733    
734 tony 11 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
735    
736     1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
737    
738    
739 tony 9 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
740 tony 7
741     1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
742     Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
743    
744     2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
745     package is changed to do this (which it should do).
746    
747     IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
748    
749     1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
750    
751     2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
752    
753     3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
754    
755     4. Property editors should now correctly resize.
756    
757     5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
758     (restored original functionality)
759    
760     6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
761     library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.