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Revision: 64
Committed: Thu Jun 29 11:11:22 2017 UTC (3 years, 10 months ago) by tony
File size: 35042 byte(s)
Log Message:
IBLookupComboEditBox: Avoid race condition when autocompleting text that occasionally results in autocomplete ignoring prefix text.
Line User Rev File contents
1 tony 56 IBX Change Log version (2.0.3) tba, 24 Feb 2017 12:17:53 +0000
3     1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
4     changes.
6 tony 58 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
7     Bug could result in truncated multi-byte character set values.
9 tony 60 3. Changes consequential on moving fbintf character set utility functions from
10     IFirebirdAPI to IAttachment.
12 tony 62 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
14 tony 64 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
15     results in autocomplete ignoring prefix text.
17 tony 51 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
18 tony 49
19 tony 51 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
20 tony 49 include remote system name.
22     2. TIBExtract: No longer include comment header and COMMIT statement for empty
23     tables when data included in output.
25     3. Profiling: IBSQL now has conditional compilation flags to enable query performance
26     and timing information to be written to stdout. This may be used to locate
27     performance bottlenecks.
29     4. SQLParser: only call "OnChanging" event handler when value is different.
31     5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
33 tony 50 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
34     that BindFields is called when the query is next activated. Avoids FieldName
35     not found error.
37 tony 47 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
38 tony 45
39 tony 47 1. TIBEvents: Fix uninitialised variable that could result in lost events.
40 tony 45
41 tony 47 2. TIBExtract: Added support for FB3 "USAGE" privilege.
43     3. TIBExtract: data formatted as Charset set "octets" is now output using
44     hexadecimal notation.
46     4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
47     using a simple XML format.
49     5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
50     grants to these objects.
52     6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
53     dependency problems restoring complex databases.
55     7. TIBXScript: This component has been restructured to allow for the processing of
56     embedded XML in INSERT statements and to support interactive sources in addition
57     to non-interactive data sources such as files.
59     8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
61     9. TIBXScript: ISQL compatiable Set statements are now supported:
63     SET TERM
65     SET BAIL
66     SET ECHO
67     SET COUNT
68     SET STATS
69     SET NAMES <character set>
71     10. IBVersion unit added to hold current IBX Version Number information.
73     11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
74     and domain definitions.
76     12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
77     fully supported.
79     13. TIBExtract: when a database dump includes data, the generator values are now also set.
81     14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
83     IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
85 tony 50 See also doc/IBX4LazarusGuide.pdf for important information on
86 tony 45 upgrading to IBX2.
88     1. Size property of TIBStringField is now the width in characters of the field
89     and not the byte length. This applies only to multi-byte character sets such
90     as UTF8. The original approach aligned with TStringField. However, the TStringField
91     code is not recognised as a bug and hence this change to align the behaviour.
92     The TStringField change is expected in fpc 3.2.0.
94     2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
95     true (default) then Size property value saved in the lfm is ignored. Size is
96     always set from the dynamic information read from the database. It is unclear
97     why anyone would want to override this and set Size to false.
99     3. ibxscript: should now handle correctly a Case..End statement within a procedure
100     block.
102     4. IBDatabase: new property - CreateIfNotExists. If true and database does not
103     exist when an attempt is made to connect to it (run time only) then an attempt
104     is made to create the database.
106     5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
107     has been successfully created as a result of a call to CreateDatabase or when
108     creating a database after it was found not to exist.
110     6. DBControlGrid: a race condition could result in the wrong row image being
111     written to the cache. This has been avoided by a trip round the message
112     loop before rendering the row image.
114     7. DBControlGrid: It is strongly recommended not to open the source DataSet for
115     a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
116     known to risk corrupt rendering of row images when the control is first
117     displayed. If necessary use "Application.QueueAsyncCall" to delay opening
118     of the dataset (see DBControlGrid examples) until the Form's Window has been created.
120     8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
121     a TDateEdit control located on an editor panel.
123     9. TIBExtract: brought up-to-date plus many bug fixes.
125     10. DBControlGrid: Removed memory leak when updating rows.
127     11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
129 tony 43 IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
131     1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
132     when target codepage is CP_NONE. This is a workaround for
135     2. DBLog option removed from TIBStatisticalService - not supported by server
136     since Firebird 1.5.
138     3. ibxscript: An error is no longer generated for "on commit preserve rows" or
139     similar.
141     4. IBCodePage: updated mapping between codepages and character id.
143     5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
144     Firebird. Character sets with a char width of two are not UTF16.
146     6. Strings received from the database are now always transliterated into UTF8
147     regardless of the database character set or connection character set. This
148     is for compatibility with the LCL.
150 tony 45 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
151 tony 41
152     1. IBBlob: Defer reading of blob until read method called. This avoids having to
153     read in an entire blob just to get the size of the blob. General performance
154     improvement when opening datasets containing blobs.
156     2. Clearing a Blob now sets the corresponding field's modified flag.
158     3. IBLookupCombo: When not performing auto-complete, original query sort order
159     is now used.
161     4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
162     determined.
164     5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
166     6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
167     lazarus 1.6.0
169     7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
170     compilation error.
172 tony 39 IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
174     1. No character set specified for connection: when a text blob is retrieved, the
175     character set is determined by looking up the native character set using then
176     Firebird API. Otherwise a text mode blob is assumed to have the same character
177     set as the connection.
179     2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
180     for Login Dialog returing a change to the database path.
182     3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
183     to be changed from that given in the TIBDatabase/TIBServer component and for the
184     entered value to be saved on a project specific basis (design time only).
186     4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
187     column fieldname. If they are the same then it is acts as a look up for the KeyValue
188     Otherwise, it sets the column text to the selected ListField Value.
190     5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
191     column width.
193     6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
194     and a case insensitive search is requested.
196     7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
197     or column ListSource.
199     8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
200     unprepare) when closing and the text has not changed.
202     9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
203     Less likely to cause a cursor re-use error on Windows.
205     10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
206     Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
208     11. TIBTreeView: Guard against nil destination on record changed
210     12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
211     string type with the code page set to reflect the returned field encoding after
212     Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
213     earlier versions.
215     13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
216     will now result in transliteration to the code page specified for the Firebird driver
217     if the assigned string has a different code page. FPC 3.0.0 onwards only.
219     14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
220     is ignored and the lc_ctype value, when the database is opened, is set to align with
221     the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
222     platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
223     3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
224     the GETACP is used to determine the Windows code page.
226     15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
227     name used as the lc_ctype when the database was opened. Only valid while the
228     Database is connected.
230     16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
231     id that corresponds to the DefaultCharSetName.
233 tony 37 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
235     1. Unix: If Firebird Embedded Server shared object is loaded and a local database
236     path is given and database attach fails due to access permission issues on the
237     temp directory or security database, then the attach is retried with "localhost:"
238     prefixing the databasename. This should avoid problems when the database has to
239     be accessed by a local (e.g. classic) server and libfbembed is used.
241     2. Windows: revised search order for Firebird DLL:
242     i. The Firebird Embedded Server in the application Directory.
243     ii. If the FIREBIRD environment variable is set then the directory this
244     points to is searched for the FB Client DLL and then then underlying
245     "bin" directory.
246     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
247     is used to locate the Firebird installation directory and the underlying
248     "bin" directory is searched for the FB Client DLL.
249     iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
250     are searched for the FB Client DLL.
251     v. The PATH Environment variable is used to search for the FB Client DLL.
252     vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
254     3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
255     See doc/readme.scriptengine and example applications.
257     4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
258     simplify the use of the embedded firebird server on both Linux and Windows platforms.
259     See dpc/readme.localdatabase and example applications.
261     5. IBDynamicGrid: Reordering on column header click should now also work for
262     dynamic columns.
264     6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
265     between incrementing/decrementing the lock count and signalling the event.
267 tony 35 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
269 tony 37 1.3.2 was never formally released and only made available as beta copies.
271 tony 35 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
273     2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
275     3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
277     4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
278     i.e. when it is a calculated field
280     5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
281     This problem was due to a race condition between recalculating row heights and
282     determining which row was selected by the mouse click. The row height calculation
283     is now deferred by an extra trip round the message loop allowing the row to
284     be always calculated on the current grid layout rather than risking it being
285     calculated on the grid layout after the expanded row has been shrunk.
287     6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
288     Windows.
290     7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
291     These properties allow the (Firebird) character set name for the field and the max number of bytes per character
292 tony 37 to be determined at runtime. See doc/readme.charactersets.html.
293 tony 35
294     8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
295 tony 37 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
296 tony 35
297     9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
298     TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
299 tony 37 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
300 tony 35
301     Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
302     from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
303     implies no truncation.
305     10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
307     11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
308     (avoids "Not in Edit Mode" error).
310     12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
312     13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
313     DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
315     14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
317     15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
319     16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
321     17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
323 tony 33 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
324 tony 31
325     1. OnCloseUp Event Handler added to TDBLookupProperties
327     2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
328     problem with row size when exception is called.
330     3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
332     4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
333     in a TCustomComboBox and ignores return key if in a TCustomMemo
335     5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
336     keyed in i.e. when autocomplete not performed
338 tony 33 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
339     console mode applications with all LCL required functions (builtin dialogs and
340     cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
341     not included in your project, IBX should compile and link with a console mode program.
342     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
343     console mode application or the IDE will automatically assume that your
344     application is GUI based. Instead, you should include the ibexpressconsolemode package.
345 tony 31
346     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
347     to use the built in dialogs and cursor management. IBDialogs is
348 tony 33 included by default if "ibexpress" is in your project source's "uses" clause.
349 tony 31 This should be the case for all projects created through the IDE. This is why
350     you do not want to add the ibexpress package to console mode applications. The
351     ibexpressconsolemode package has been created to allow console mode programs
352     to avoid adding LCL dependencies when using IBX, while still having the
353     unit search paths set up correctly.
355 tony 33 Existing users should check to ensure that the "ibexpress" unit is included in
356     each project's source file (*.lpr).
358 tony 31 You may find that in order for the IDE to recognise that ibexpressconsolemode
359     exists, you have to first open the package in the IDE and then close it. This
360     adds it to the most recently accessed packages list. To make it permanently
361     available, add the package name to lazarus' file.
363 tony 33 Thanks to Julio Jiménez for suggesting support of console mode.
364 tony 31
365     7. SQL Parser can now accept quoted strings that include new lines
367     8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
368     of text on start of edit. This is particularly useful when tabbing to a
369     column and then inserting text.
371     9. New Examples provided for IB Services and ISQLMonitor.
373     10. Fix error when writing to blob streams that recorded only the last buffer
374     write in the blob stream. In most cases, this did not cause a problem as the
375     IB Blob Stream is written in a single write. However, with the TDBImage, write
376     of a graphic type prefix was lost which caused a problem when the image could
377     not be automatically recognised.
379     11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
380 tony 33 already open" errors due to random numbers used for the cursor name being identical.
381 tony 31
382     12. IBTable: corrected error that could result in an "Index out of bounds" error
383     when opening the table and the Primary Key is the last or only column in the
384     table. Thanks to Rick Hoover for the fix.
386 tony 33 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
387     of "UTF-8", and update list of available database character sets. Existing
388     users should check the current lc_ctype setting in their applications.
389 tony 29
390 tony 33 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
392 tony 29 1. Firebird Services: avoid List Index error when opening a service with an
393     empty Params property.
395     2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
396     Link now set up in Loaded method - avoids occasional failure to apply
397     SQL markup on initial open.
399     3. "Employees" example performance improvements when scrolling.
401     4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
402     TFrame. Force recaching of selected frame to avoid GTK race (results in a
403     random image cached).
405     5. DBControlGrid: Should now react to changes in panel height at run time.
407     6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
408     even when further rows exist.
410     7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
411     always be derived from panel height and setting this property can cause confusion.
412     Note for existing projects: to avoid a missing property error at run time,
413     each form using the DBControlGrid must be opened, updated and saved in the IDE
414     in order to remove the property value from the lfm.
417 tony 33 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
418 tony 27
419     1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
420     call Prepare before setting parameter values.
422     2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
424     3. Code tidyup and more robust handling of dsql information result vector.
426     4. Support for centralised handling of transaction status changes. TIBTransaction
427     has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
428     and "AfterExecQuery". The first three are called after the same event is called
429     for an IBCustomDataSet descendent using the Transaction. The fourth is called
430     after a call to TIBSQL.ExecQuery, again using this transaction. These new events
431     enable monitoring of transaction status changes for a given transaction to be
432     handled in a single place. For example, when a change to the dataset occurs
433     an indicator can be set that shows the user that in order to save changes,
434     the transaction should be committed. Rather than doing this per dataset, this
435     can now be done per transaction.
437     5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
438     the dataset is scrolled. However, any changes to the current row are, by default,
439     discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
440     have a new property "DataSetCloseAction" that adds automatic posting of changes
441     on dataset close. If this property is set to dcDiscardChanges (default) then the
442     behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
443     then IBX will attempt to post any unsaved changes before the dataset is closed
444     (and after the BeforeClose event handler is called). The exception is when the
445     dataset is being closed as a result of a transaction rollback. In this case,
446     no action is taken and any unsaved changes are discarded. This avoids both
447     unnecessary overhead and the risk that a validation error may occur in the Post
448     raising an exception and thereby preventing a rollback.
450     6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
451     In earlier versions, the Display Width was set to the maximum byte width rather than the character
452     width. Display Widths are now corrected by dividing by the max byte width per character.
453     For UTF8 character sets, the byte width is four and hence the Display Width will be
454     the byte width divided by 4. The byte width of each character set is determined
455     dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
456     system table. (see also
458     7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
460     8. IBLookupComboEditBox: List should now always be restored to full list when the
461     control loses focus. Default Key press default interval reduced to 200ms.
463     9. DBControlGrid: Ensure that selection is changed to newly appended row, even
464     when dataset rows are less than visible rows.
466     10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
467     does not exist or DataSet is empty. More responsive on dataset open. New event
468     OnRestorePosition. Column sort disabled if no header row.
470     11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
471     while dataset state is dsInsert. Avoids posting errors.
473     12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
474     avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
476     13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
478     14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
479     to solve a specific problem. That is when the dataset cursor is moved (e.g. by
480     a grid mouse click and the current row is being edited or inserted. In this case, TDataset
481     always "posts" the current record regardless or whether or not it may be more appropriate
482     to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
483     "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
484     as the first action of the "Post" method and allows the handler to convert the Post
485     into a Cancel if that is the appropriate action on moving to a different row. This is
486     achieved by returning with "CancelPost" argument set to true. Note that an exception could be
487     raised here, but it may still be more appropriate to validate a post and signal
488     a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
490     15. On Unix derived systems, the Firebird library name can now be given as a colon
491     separated list. Each library name on the list is tried in turn, in left to right
492     order with the first found being used as the firebird library. By default, on Linux,
493     the library name list is ''. This can be
494     overidden by the FBLIB environment variable or the OnGetLibraryName function.
496     Note: when using the, if you prefix the database name with "localhost:"
497     then it will still attempt to access the database via the Firebird Server and will
498     require a username and password. If only the pathname is given, then the username
499     and password should be omitted and the unix file permissions are used to grant
500     access.
502 tony 33 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
503 tony 23
504     1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
505     rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
506     that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
507 tony 27 corresponds to a row of the linked DataSource. Any data aware control on the
508 tony 23 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
510     2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
511 tony 25 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
512 tony 23 takes place during database access. This may be useful when there are performance issues with
513     the change of cursor. Setting the property to false suppresses the change of cursor.
515     3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
516     and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
517     Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
518     making all changes permanent immediately rather than when the transaction is explicitly
519     committed.
521 tony 25 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
522 tony 27 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
523 tony 23
524 tony 33 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
525 tony 25
526     Development version only.
528 tony 33 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
529 tony 21
530     1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
531     This is typically used during an "OnBeforeOpen" event handler to manipulate the
532     "Where" and "Having" clauses to implement user specified filters of arbitrary
533     complexity.
535     2. A new Component Palette entry "Firebird Data Controls" is now available. This has
536     three new data aware controls dependent on IBX and which make use of the SQL Parser.
537     These are:
539     - TIBLookupComboEditBox
540     - TIBDynamicGrid
541     - TIBTreeview
543     TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
544     of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
545     to revise the available list and restrict it to items that are prefixed by the
546 tony 25 typed text (either case sensitive or case insensitive). Autoinsert allows a
547 tony 21 newly typed entry to be added to the list dataset and included in the available
548     list items.
550     TIBDynamicGrid is a TDBGrid descendent that provides for:
551     - automatic resizing of selected columns to fill the available row length
552     - automatic positioning and sizing of a "totals" control, typically at the
553     column footer, on a per column basis.
554     - DataSet resorting on header row click, sorting the dataset by the selected column.
555     A second click on the same header cell reversed the sort order.
556     - Support for a "Panel Editor". That is on clicking the indicator column, the row
557     is automatically expanded and a panel superimposed on it. The panel can have any
558     number of child controls, typically data aware controls with the same datasource
559     as the grid allowing for editing of additional fields and more complex editors.
560     - Reselection of the same row following resorting.
561     - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
562     Its properties are specified on a per column basis and allows for one or more
563     columns to have their values selected from a list provided by a dataset.
564     Autocomplete and autoinsert are also available. The existing picklist editor
565     is unaffected by the extension.
567     TIBTreeView is a data aware TCustomTreeView.
569     3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
570     zero scale will no longer return an error. An Int64 will be returned instead.
572     4. TIBTransaction now has events for Before and After Transaction End and a new function
573     "GetEndAction" allowing the EndAction to be accessed by these event handlers.
575     5. TIBQuery can now handle correctly queries which contain the same keyword parameter
576     repeated multiple times.
578     6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
579     check used to get in the way of using Stored Procedures, and "Update or Insert"
580     statements.
582     7. Insert, Modify and Delete property Editors now support Query Generation from
583     Stored Procedures.
585     8. Three new examples illustrate the use of the new IB Controls
588 tony 33 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
589 tony 19
590     1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
591     setting performance. See "readme.field+param.names in the doc folder.(Thanks to
592     Gabor Boros for reporting this problem and for testing the improvements).
594     2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
595     See readme.field+param.names in the doc folder.
597     3. IBX SQL Editors will now automatically add double quotes around column names when the database
598     dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
600     4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
602     5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
603     actions.
605     6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
606     thanks to Yuriy Kopnin for pointing this out).
608     7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
610     8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
611     for both fields and parameter setting.
613     9. Changes to the Select SQL in an IBCustomDataset descendent should now be
614     visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
616     10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
617     when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
619     11. TIBTable now has a property editor for "MasterFields"
621     12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
622     GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
624     13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
625     of settings is unrecognised. Selecting this radio button has no effect on the settings.
628 tony 17 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
630     1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
632 tony 15 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
634     1. In a TIBCustomDataset descendent, a generator now only sets the value when
635     it is null. This allows for alternative user defined setting of the generator
637     Many thanks to Julio Jiménez for this fix
639     2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
640     and suggests that the user may have forgotten to install it.
642 tony 13 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
644     1. Conditional compilation used to limit registration of TIntegerField to
645     Lazarus versions less than 1.1
647     2. When a database connection is created, character set is now by default set
648     to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
649     1250 to 1254.
652 tony 11 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
654     1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
657 tony 9 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
658 tony 7
659     1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
660     Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
662     2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
663     package is changed to do this (which it should do).
665     IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
667     1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
669     2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
671     3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
673     4. Property editors should now correctly resize.
675     5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
676     (restored original functionality)
678     6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
679     library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.