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Revision: 68
Committed: Tue Oct 17 10:07:58 2017 UTC (6 years, 5 months ago) by tony
File size: 35475 byte(s)
Log Message:
IBX: Editor Positioning tidy up
FBINTF: Trap uninitialised SQL parameters on SQL Exec. Avoids Unknown SQL Type errors.
Consistent setting of Modified (SQLParam).

File Contents

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