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Revision: 106
Committed: Thu Jan 18 14:37:35 2018 UTC (6 years, 2 months ago) by tony
File size: 39619 byte(s)
Log Message:
Updates Merged

File Contents

# User Rev Content
1 tony 106 IBX Change Log version (2.1-1) Fri, 12 Jan 2018 10:13:29 +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 105 6. Property editor will now sync table name to a System Table when "Include System
21     Tables" is selected and the query is for a System Table.
22    
23     7. Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
24     Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
25 tony 106 Insert..Returning clause.
26 tony 105
27 tony 106 8. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
28     values are no longer converted to milliseconds from TDateTime and then back again
29     the TDateTime (the TDataset approach).
30    
31 tony 90 IBX Change Log version (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
32 tony 56
33     1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
34     changes.
35    
36 tony 58 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
37     Bug could result in truncated multi-byte character set values.
38    
39 tony 60 3. Changes consequential on moving fbintf character set utility functions from
40     IFirebirdAPI to IAttachment.
41    
42 tony 62 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
43    
44 tony 64 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
45     results in autocomplete ignoring prefix text.
46    
47 tony 65 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
48     entering a new name into the text box.
49    
50 tony 66 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
51     Firebird rather than recomputing it.
52    
53 tony 67 8. Property Editor positioning tidy up: All IBX Property editors should now be
54     screen centre. Previously some were "poDesigned" which may be inappropriate
55     for multi monitor desktops.
56    
57 tony 80 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
58    
59     11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
60     a transaction and always reset the object.
61    
62     12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
63    
64     13. TIBXScript: Allow for override of database filename in Create Database statements.
65    
66     14. IBLocaldb: Support initialisation of the database from an SQL script in addition
67     to a gbak format archive.
68    
69     15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
70    
71     16. IBLocaldb: Drop database if error creating an empty database.
72    
73     17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
74     unless selected node not in current dataset.
75    
76     18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
77     to TIBCustomService, and IBlocalDB code tidy up.
78    
79     19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
80     behaviour due to uninitialised variable.
81    
82     20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
83     integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
84    
85     21. IBSQL: When Database changed ensure that all resources are freed.
86    
87     22. IBCustomDataset: When database changed ensure that queries an unprepared.
88    
89 tony 84 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
90     * Line Wrap on SQL Token boundaries (on user command)
91     * auto-complete table names in drop down list of table names
92     * Double click on tablename or field name adds to SQL text
93 tony 80
94     24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
95    
96     25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
97     TVariantArray. Seems to avoid memory corruption in Windows (probably a
98     workaround for a problem in fpc 3.0.4 win64).
99    
100     26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
101    
102 tony 83 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
103    
104 tony 51 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
105 tony 49
106 tony 51 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
107 tony 49 include remote system name.
108    
109     2. TIBExtract: No longer include comment header and COMMIT statement for empty
110     tables when data included in output.
111    
112     3. Profiling: IBSQL now has conditional compilation flags to enable query performance
113     and timing information to be written to stdout. This may be used to locate
114     performance bottlenecks.
115    
116     4. SQLParser: only call "OnChanging" event handler when value is different.
117    
118     5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
119    
120 tony 50 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
121     that BindFields is called when the query is next activated. Avoids FieldName
122     not found error.
123    
124 tony 80 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
125     purpose and allows the programmer to define any action they want for Update, Insert
126     or Delete. This may be complex SQL (similar to a Trigger), application specific
127     filtering of updates, or use of statements such as Grant or Revoke instead of
128     normal DML. See User Manual for more information.
129    
130 tony 47 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
131 tony 45
132 tony 47 1. TIBEvents: Fix uninitialised variable that could result in lost events.
133 tony 45
134 tony 47 2. TIBExtract: Added support for FB3 "USAGE" privilege.
135    
136     3. TIBExtract: data formatted as Charset set "octets" is now output using
137     hexadecimal notation.
138    
139     4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
140     using a simple XML format.
141    
142     5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
143     grants to these objects.
144    
145     6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
146     dependency problems restoring complex databases.
147    
148     7. TIBXScript: This component has been restructured to allow for the processing of
149     embedded XML in INSERT statements and to support interactive sources in addition
150     to non-interactive data sources such as files.
151    
152     8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
153    
154     9. TIBXScript: ISQL compatiable Set statements are now supported:
155     SET SQL DIALECT
156     SET TERM
157     SET AUTODDL
158     SET BAIL
159     SET ECHO
160     SET COUNT
161     SET STATS
162     SET NAMES <character set>
163    
164     10. IBVersion unit added to hold current IBX Version Number information.
165    
166     11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
167     and domain definitions.
168    
169     12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
170     fully supported.
171    
172     13. TIBExtract: when a database dump includes data, the generator values are now also set.
173    
174     14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
175    
176     IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
177    
178 tony 50 See also doc/IBX4LazarusGuide.pdf for important information on
179 tony 45 upgrading to IBX2.
180    
181     1. Size property of TIBStringField is now the width in characters of the field
182     and not the byte length. This applies only to multi-byte character sets such
183     as UTF8. The original approach aligned with TStringField. However, the TStringField
184     code is not recognised as a bug and hence this change to align the behaviour.
185     The TStringField change is expected in fpc 3.2.0.
186    
187     2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
188     true (default) then Size property value saved in the lfm is ignored. Size is
189     always set from the dynamic information read from the database. It is unclear
190     why anyone would want to override this and set Size to false.
191    
192     3. ibxscript: should now handle correctly a Case..End statement within a procedure
193     block.
194    
195     4. IBDatabase: new property - CreateIfNotExists. If true and database does not
196     exist when an attempt is made to connect to it (run time only) then an attempt
197     is made to create the database.
198    
199     5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
200     has been successfully created as a result of a call to CreateDatabase or when
201     creating a database after it was found not to exist.
202    
203     6. DBControlGrid: a race condition could result in the wrong row image being
204     written to the cache. This has been avoided by a trip round the message
205     loop before rendering the row image.
206    
207     7. DBControlGrid: It is strongly recommended not to open the source DataSet for
208     a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
209     known to risk corrupt rendering of row images when the control is first
210     displayed. If necessary use "Application.QueueAsyncCall" to delay opening
211     of the dataset (see DBControlGrid examples) until the Form's Window has been created.
212    
213     8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
214     a TDateEdit control located on an editor panel.
215    
216     9. TIBExtract: brought up-to-date plus many bug fixes.
217    
218     10. DBControlGrid: Removed memory leak when updating rows.
219    
220     11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
221    
222 tony 43 IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
223    
224     1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
225     when target codepage is CP_NONE. This is a workaround for
226     http://bugs.freepascal.org/view.php?id=30622.
227    
228     2. DBLog option removed from TIBStatisticalService - not supported by server
229     since Firebird 1.5.
230    
231     3. ibxscript: An error is no longer generated for "on commit preserve rows" or
232     similar.
233    
234     4. IBCodePage: updated mapping between codepages and character id.
235    
236     5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
237     Firebird. Character sets with a char width of two are not UTF16.
238    
239     6. Strings received from the database are now always transliterated into UTF8
240     regardless of the database character set or connection character set. This
241     is for compatibility with the LCL.
242    
243 tony 45 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
244 tony 41
245     1. IBBlob: Defer reading of blob until read method called. This avoids having to
246     read in an entire blob just to get the size of the blob. General performance
247     improvement when opening datasets containing blobs.
248    
249     2. Clearing a Blob now sets the corresponding field's modified flag.
250    
251     3. IBLookupCombo: When not performing auto-complete, original query sort order
252     is now used.
253    
254     4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
255     determined.
256    
257     5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
258    
259     6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
260     lazarus 1.6.0
261    
262     7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
263     compilation error.
264    
265 tony 39 IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
266    
267     1. No character set specified for connection: when a text blob is retrieved, the
268     character set is determined by looking up the native character set using then
269     Firebird API. Otherwise a text mode blob is assumed to have the same character
270     set as the connection.
271    
272     2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
273     for Login Dialog returing a change to the database path.
274    
275     3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
276     to be changed from that given in the TIBDatabase/TIBServer component and for the
277     entered value to be saved on a project specific basis (design time only).
278    
279     4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
280     column fieldname. If they are the same then it is acts as a look up for the KeyValue
281     Otherwise, it sets the column text to the selected ListField Value.
282    
283     5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
284     column width.
285    
286     6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
287     and a case insensitive search is requested.
288    
289     7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
290     or column ListSource.
291    
292     8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
293     unprepare) when closing and the text has not changed.
294    
295     9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
296     Less likely to cause a cursor re-use error on Windows.
297    
298     10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
299     Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
300    
301     11. TIBTreeView: Guard against nil destination on record changed
302    
303     12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
304     string type with the code page set to reflect the returned field encoding after
305     Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
306     earlier versions.
307    
308     13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
309     will now result in transliteration to the code page specified for the Firebird driver
310     if the assigned string has a different code page. FPC 3.0.0 onwards only.
311    
312     14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
313     is ignored and the lc_ctype value, when the database is opened, is set to align with
314     the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
315     platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
316     3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
317     the GETACP is used to determine the Windows code page.
318    
319     15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
320     name used as the lc_ctype when the database was opened. Only valid while the
321     Database is connected.
322    
323     16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
324     id that corresponds to the DefaultCharSetName.
325    
326 tony 37 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
327    
328     1. Unix: If Firebird Embedded Server shared object is loaded and a local database
329     path is given and database attach fails due to access permission issues on the
330     temp directory or security database, then the attach is retried with "localhost:"
331     prefixing the databasename. This should avoid problems when the database has to
332     be accessed by a local (e.g. classic) server and libfbembed is used.
333    
334     2. Windows: revised search order for Firebird DLL:
335     i. The Firebird Embedded Server in the application Directory.
336     ii. If the FIREBIRD environment variable is set then the directory this
337     points to is searched for the FB Client DLL and then then underlying
338     "bin" directory.
339     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
340     is used to locate the Firebird installation directory and the underlying
341     "bin" directory is searched for the FB Client DLL.
342     iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
343     are searched for the FB Client DLL.
344     v. The PATH Environment variable is used to search for the FB Client DLL.
345     vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
346    
347     3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
348     See doc/readme.scriptengine and example applications.
349    
350     4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
351     simplify the use of the embedded firebird server on both Linux and Windows platforms.
352     See dpc/readme.localdatabase and example applications.
353    
354     5. IBDynamicGrid: Reordering on column header click should now also work for
355     dynamic columns.
356    
357     6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
358     between incrementing/decrementing the lock count and signalling the event.
359    
360 tony 35 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
361    
362 tony 37 1.3.2 was never formally released and only made available as beta copies.
363    
364 tony 35 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
365    
366     2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
367    
368     3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
369    
370     4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
371     i.e. when it is a calculated field
372    
373     5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
374     This problem was due to a race condition between recalculating row heights and
375     determining which row was selected by the mouse click. The row height calculation
376     is now deferred by an extra trip round the message loop allowing the row to
377     be always calculated on the current grid layout rather than risking it being
378     calculated on the grid layout after the expanded row has been shrunk.
379    
380     6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
381     Windows.
382    
383     7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
384     These properties allow the (Firebird) character set name for the field and the max number of bytes per character
385 tony 37 to be determined at runtime. See doc/readme.charactersets.html.
386 tony 35
387     8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
388 tony 37 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
389 tony 35
390     9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
391     TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
392 tony 37 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
393 tony 35
394     Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
395     from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
396     implies no truncation.
397    
398     10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
399    
400     11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
401     (avoids "Not in Edit Mode" error).
402    
403     12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
404    
405     13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
406     DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
407    
408     14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
409    
410     15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
411    
412     16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
413    
414     17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
415    
416 tony 33 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
417 tony 31
418     1. OnCloseUp Event Handler added to TDBLookupProperties
419    
420     2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
421     problem with row size when exception is called.
422    
423     3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
424    
425     4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
426     in a TCustomComboBox and ignores return key if in a TCustomMemo
427    
428     5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
429     keyed in i.e. when autocomplete not performed
430    
431 tony 33 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
432     console mode applications with all LCL required functions (builtin dialogs and
433     cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
434     not included in your project, IBX should compile and link with a console mode program.
435     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
436     console mode application or the IDE will automatically assume that your
437     application is GUI based. Instead, you should include the ibexpressconsolemode package.
438 tony 31
439     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
440     to use the built in dialogs and cursor management. IBDialogs is
441 tony 33 included by default if "ibexpress" is in your project source's "uses" clause.
442 tony 31 This should be the case for all projects created through the IDE. This is why
443     you do not want to add the ibexpress package to console mode applications. The
444     ibexpressconsolemode package has been created to allow console mode programs
445     to avoid adding LCL dependencies when using IBX, while still having the
446     unit search paths set up correctly.
447    
448 tony 33 Existing users should check to ensure that the "ibexpress" unit is included in
449     each project's source file (*.lpr).
450    
451 tony 31 You may find that in order for the IDE to recognise that ibexpressconsolemode
452     exists, you have to first open the package in the IDE and then close it. This
453     adds it to the most recently accessed packages list. To make it permanently
454     available, add the package name to lazarus' staticpackages.inc file.
455    
456 tony 33 Thanks to Julio Jiménez for suggesting support of console mode.
457 tony 31
458     7. SQL Parser can now accept quoted strings that include new lines
459    
460     8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
461     of text on start of edit. This is particularly useful when tabbing to a
462     column and then inserting text.
463    
464     9. New Examples provided for IB Services and ISQLMonitor.
465    
466     10. Fix error when writing to blob streams that recorded only the last buffer
467     write in the blob stream. In most cases, this did not cause a problem as the
468     IB Blob Stream is written in a single write. However, with the TDBImage, write
469     of a graphic type prefix was lost which caused a problem when the image could
470     not be automatically recognised.
471    
472     11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
473 tony 33 already open" errors due to random numbers used for the cursor name being identical.
474 tony 31
475     12. IBTable: corrected error that could result in an "Index out of bounds" error
476     when opening the table and the Primary Key is the last or only column in the
477     table. Thanks to Rick Hoover for the fix.
478    
479 tony 33 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
480     of "UTF-8", and update list of available database character sets. Existing
481     users should check the current lc_ctype setting in their applications.
482 tony 29
483 tony 33 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
484    
485 tony 29 1. Firebird Services: avoid List Index error when opening a service with an
486     empty Params property.
487    
488     2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
489     Link now set up in Loaded method - avoids occasional failure to apply
490     SQL markup on initial open.
491    
492     3. "Employees" example performance improvements when scrolling.
493    
494     4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
495     TFrame. Force recaching of selected frame to avoid GTK race (results in a
496     random image cached).
497    
498     5. DBControlGrid: Should now react to changes in panel height at run time.
499    
500     6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
501     even when further rows exist.
502    
503     7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
504     always be derived from panel height and setting this property can cause confusion.
505     Note for existing projects: to avoid a missing property error at run time,
506     each form using the DBControlGrid must be opened, updated and saved in the IDE
507     in order to remove the property value from the lfm.
508    
509    
510 tony 33 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
511 tony 27
512     1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
513     call Prepare before setting parameter values.
514    
515     2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
516    
517     3. Code tidyup and more robust handling of dsql information result vector.
518    
519     4. Support for centralised handling of transaction status changes. TIBTransaction
520     has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
521     and "AfterExecQuery". The first three are called after the same event is called
522     for an IBCustomDataSet descendent using the Transaction. The fourth is called
523     after a call to TIBSQL.ExecQuery, again using this transaction. These new events
524     enable monitoring of transaction status changes for a given transaction to be
525     handled in a single place. For example, when a change to the dataset occurs
526     an indicator can be set that shows the user that in order to save changes,
527     the transaction should be committed. Rather than doing this per dataset, this
528     can now be done per transaction.
529    
530     5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
531     the dataset is scrolled. However, any changes to the current row are, by default,
532     discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
533     have a new property "DataSetCloseAction" that adds automatic posting of changes
534     on dataset close. If this property is set to dcDiscardChanges (default) then the
535     behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
536     then IBX will attempt to post any unsaved changes before the dataset is closed
537     (and after the BeforeClose event handler is called). The exception is when the
538     dataset is being closed as a result of a transaction rollback. In this case,
539     no action is taken and any unsaved changes are discarded. This avoids both
540     unnecessary overhead and the risk that a validation error may occur in the Post
541     raising an exception and thereby preventing a rollback.
542    
543     6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
544     In earlier versions, the Display Width was set to the maximum byte width rather than the character
545     width. Display Widths are now corrected by dividing by the max byte width per character.
546     For UTF8 character sets, the byte width is four and hence the Display Width will be
547     the byte width divided by 4. The byte width of each character set is determined
548     dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
549     system table. (see also http://bugs.freepascal.org/view.php?id=27766).
550    
551     7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
552    
553     8. IBLookupComboEditBox: List should now always be restored to full list when the
554     control loses focus. Default Key press default interval reduced to 200ms.
555    
556     9. DBControlGrid: Ensure that selection is changed to newly appended row, even
557     when dataset rows are less than visible rows.
558    
559     10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
560     does not exist or DataSet is empty. More responsive on dataset open. New event
561     OnRestorePosition. Column sort disabled if no header row.
562    
563     11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
564     while dataset state is dsInsert. Avoids posting errors.
565    
566     12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
567     avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
568    
569     13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
570    
571     14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
572     to solve a specific problem. That is when the dataset cursor is moved (e.g. by
573     a grid mouse click and the current row is being edited or inserted. In this case, TDataset
574     always "posts" the current record regardless or whether or not it may be more appropriate
575     to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
576     "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
577     as the first action of the "Post" method and allows the handler to convert the Post
578     into a Cancel if that is the appropriate action on moving to a different row. This is
579     achieved by returning with "CancelPost" argument set to true. Note that an exception could be
580     raised here, but it may still be more appropriate to validate a post and signal
581     a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
582    
583     15. On Unix derived systems, the Firebird library name can now be given as a colon
584     separated list. Each library name on the list is tried in turn, in left to right
585     order with the first found being used as the firebird library. By default, on Linux,
586     the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
587     overidden by the FBLIB environment variable or the OnGetLibraryName function.
588    
589     Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
590     then it will still attempt to access the database via the Firebird Server and will
591     require a username and password. If only the pathname is given, then the username
592     and password should be omitted and the unix file permissions are used to grant
593     access.
594    
595 tony 33 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
596 tony 23
597     1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
598     rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
599     that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
600 tony 27 corresponds to a row of the linked DataSource. Any data aware control on the
601 tony 23 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
602    
603     2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
604 tony 25 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
605 tony 23 takes place during database access. This may be useful when there are performance issues with
606     the change of cursor. Setting the property to false suppresses the change of cursor.
607    
608     3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
609     and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
610     Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
611     making all changes permanent immediately rather than when the transaction is explicitly
612     committed.
613    
614 tony 25 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
615 tony 27 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
616 tony 23
617 tony 33 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
618 tony 25
619     Development version only.
620    
621 tony 33 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
622 tony 21
623     1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
624     This is typically used during an "OnBeforeOpen" event handler to manipulate the
625     "Where" and "Having" clauses to implement user specified filters of arbitrary
626     complexity.
627    
628     2. A new Component Palette entry "Firebird Data Controls" is now available. This has
629     three new data aware controls dependent on IBX and which make use of the SQL Parser.
630     These are:
631    
632     - TIBLookupComboEditBox
633     - TIBDynamicGrid
634     - TIBTreeview
635    
636     TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
637     of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
638     to revise the available list and restrict it to items that are prefixed by the
639 tony 25 typed text (either case sensitive or case insensitive). Autoinsert allows a
640 tony 21 newly typed entry to be added to the list dataset and included in the available
641     list items.
642    
643     TIBDynamicGrid is a TDBGrid descendent that provides for:
644     - automatic resizing of selected columns to fill the available row length
645     - automatic positioning and sizing of a "totals" control, typically at the
646     column footer, on a per column basis.
647     - DataSet resorting on header row click, sorting the dataset by the selected column.
648     A second click on the same header cell reversed the sort order.
649     - Support for a "Panel Editor". That is on clicking the indicator column, the row
650     is automatically expanded and a panel superimposed on it. The panel can have any
651     number of child controls, typically data aware controls with the same datasource
652     as the grid allowing for editing of additional fields and more complex editors.
653     - Reselection of the same row following resorting.
654     - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
655     Its properties are specified on a per column basis and allows for one or more
656     columns to have their values selected from a list provided by a dataset.
657     Autocomplete and autoinsert are also available. The existing picklist editor
658     is unaffected by the extension.
659    
660     TIBTreeView is a data aware TCustomTreeView.
661    
662     3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
663     zero scale will no longer return an error. An Int64 will be returned instead.
664    
665     4. TIBTransaction now has events for Before and After Transaction End and a new function
666     "GetEndAction" allowing the EndAction to be accessed by these event handlers.
667    
668     5. TIBQuery can now handle correctly queries which contain the same keyword parameter
669     repeated multiple times.
670    
671     6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
672     check used to get in the way of using Stored Procedures, and "Update or Insert"
673     statements.
674    
675     7. Insert, Modify and Delete property Editors now support Query Generation from
676     Stored Procedures.
677    
678     8. Three new examples illustrate the use of the new IB Controls
679    
680    
681 tony 33 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
682 tony 19
683     1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
684     setting performance. See "readme.field+param.names in the doc folder.(Thanks to
685     Gabor Boros for reporting this problem and for testing the improvements).
686    
687     2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
688     See readme.field+param.names in the doc folder.
689    
690     3. IBX SQL Editors will now automatically add double quotes around column names when the database
691     dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
692    
693     4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
694    
695     5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
696     actions.
697    
698     6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
699     thanks to Yuriy Kopnin for pointing this out).
700    
701     7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
702    
703     8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
704     for both fields and parameter setting.
705    
706     9. Changes to the Select SQL in an IBCustomDataset descendent should now be
707     visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
708    
709     10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
710     when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
711    
712     11. TIBTable now has a property editor for "MasterFields"
713    
714     12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
715     GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
716    
717     13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
718     of settings is unrecognised. Selecting this radio button has no effect on the settings.
719    
720    
721 tony 17 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
722    
723     1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
724    
725 tony 15 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
726    
727     1. In a TIBCustomDataset descendent, a generator now only sets the value when
728     it is null. This allows for alternative user defined setting of the generator
729    
730     Many thanks to Julio Jiménez for this fix
731    
732     2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
733     and suggests that the user may have forgotten to install it.
734    
735 tony 13 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
736    
737     1. Conditional compilation used to limit registration of TIntegerField to
738     Lazarus versions less than 1.1
739    
740     2. When a database connection is created, character set is now by default set
741     to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
742     1250 to 1254.
743    
744    
745 tony 11 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
746    
747     1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
748    
749    
750 tony 9 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
751 tony 7
752     1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
753     Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
754    
755     2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
756     package is changed to do this (which it should do).
757    
758     IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
759    
760     1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
761    
762     2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
763    
764     3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
765    
766     4. Property editors should now correctly resize.
767    
768     5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
769     (restored original functionality)
770    
771     6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
772     library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.