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Revision: 126
Committed: Mon Jan 22 16:21:31 2018 UTC (6 years, 2 months ago) by tony
File size: 43047 byte(s)
Log Message:
Add property Editor for TIBUpdate.RefreshSQL

File Contents

# User Rev Content
1 tony 126 IBX Change Log version (2.2-0) Mon, 22 Jan 2018 14:21:12 +0000
2 tony 101
3 tony 107 1. IBExtract: Identity columns - add additional check for null column for generator name.
4 tony 101
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 tony 107 information). However, this is also a very useful mechanism for returning updated computed by
8     column values. Values returned as a result of executing an Insert or Update statement
9     replace existing values in the current row for each corresponding column.
10 tony 101
11 tony 107 Previously, if a dataset's select query included read only (computed by) fields then
12     an automatic row refresh was performed after an insert or update query had been processed,
13     irrespective of the setting of the "ForcedUpdates" property. This has changed such
14     that an automatic refresh is no longer performed if an insert or update query contains
15     a returning clause that updates one or more fields on the current row. A full row
16     refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
17     field values and the select query contains read only fields. Use of Insert/update
18 tony 123 returning should be significantly more efficient than executing a refresh query.
19 tony 107
20     This behaviour change is intended to be backwards compatible and there should be no need to change
21     existing programs, other than to improve performance by using the new capability.
22    
23 tony 118 3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
24     they are called when the dataset row is being deleted, there is no value in
25     updating the current record from the query result. Instead, a new event handler
26     "OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
27     an OnDeleteReturning event handler is provided then it is called with the IResults returned
28     by the query. The event handler can then interrogate the query results and
29     perform whatever action is necessary. For example to confirm, to the user,
30     the deletion of a row with the returned values.
31    
32     4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
33 tony 107 any Computed By or Identity Columns. The IBTables example has been updated to
34     illustrate the computation of the employee Full Name on update.
35    
36 tony 118 5. TIBTable: The GeneratorField property is now published.
37 tony 107
38 tony 118 6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
39 tony 101 When InsertSQL is generated, the Identity columns are not included in the list of values to
40     be inserted. A RETURNING clause is added to the insert statement to return the value of
41     each Identity column after the insert is executed.
42    
43 tony 118 7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
44 tony 107 Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
45     Insert..Returning clause.
46 tony 104
47 tony 118 8. TIBGenerator: small performance improvement by not preparing query each time
48 tony 107 a new value is generated.
49 tony 104
50 tony 118 9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
51 tony 107
52 tony 118 10. Property editors will now sync table name to a System Table when "Include System
53     Tables" is selected and the query is for a System Table.
54 tony 105
55 tony 118 11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
56 tony 107 values are no longer converted to milliseconds from TDateTime and then back again
57     to TDateTime (the conversion to milliseconds is the default TDataset approach).
58 tony 105
59 tony 118 12. Property Editors handling of Stored Procedures.
60 tony 107 * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
61     which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
62     query).
63     * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
64 tony 106
65 tony 118 13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
66 tony 107 can be used to select a package. If non-empty, the stored procedure name is
67     expected to be a stored procedure defined in the specified package and the
68     generated SQL will be as required for a stored procedure located in a package.
69    
70 tony 118 14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
71 tony 107 a "Package Name" drop down box to allow selection of a Firebird 3 Package from
72     which a stored procedure can be selected. With no package name selected, non-package
73     stored procedures are listed.
74    
75 tony 118 15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
76 tony 109 for password on reconnect.
77 tony 107
78 tony 118 16. IBDatabase: use IAttachment for connection default character set id, code page
79     and character set name.
80 tony 109
81 tony 118 17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
82     DB info lookups"
83    
84     18. IBExtract: now supports DDL Triggers.
85    
86    
87 tony 90 IBX Change Log version (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
88 tony 56
89     1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
90     changes.
91    
92 tony 58 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
93     Bug could result in truncated multi-byte character set values.
94    
95 tony 60 3. Changes consequential on moving fbintf character set utility functions from
96     IFirebirdAPI to IAttachment.
97    
98 tony 62 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
99    
100 tony 64 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
101     results in autocomplete ignoring prefix text.
102    
103 tony 65 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
104     entering a new name into the text box.
105    
106 tony 66 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
107     Firebird rather than recomputing it.
108    
109 tony 67 8. Property Editor positioning tidy up: All IBX Property editors should now be
110     screen centre. Previously some were "poDesigned" which may be inappropriate
111     for multi monitor desktops.
112    
113 tony 80 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
114    
115     11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
116     a transaction and always reset the object.
117    
118     12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
119    
120     13. TIBXScript: Allow for override of database filename in Create Database statements.
121    
122     14. IBLocaldb: Support initialisation of the database from an SQL script in addition
123     to a gbak format archive.
124    
125     15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
126    
127     16. IBLocaldb: Drop database if error creating an empty database.
128    
129     17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
130     unless selected node not in current dataset.
131    
132     18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
133     to TIBCustomService, and IBlocalDB code tidy up.
134    
135     19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
136     behaviour due to uninitialised variable.
137    
138     20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
139     integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
140    
141     21. IBSQL: When Database changed ensure that all resources are freed.
142    
143     22. IBCustomDataset: When database changed ensure that queries an unprepared.
144    
145 tony 84 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
146     * Line Wrap on SQL Token boundaries (on user command)
147     * auto-complete table names in drop down list of table names
148     * Double click on tablename or field name adds to SQL text
149 tony 80
150     24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
151    
152     25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
153     TVariantArray. Seems to avoid memory corruption in Windows (probably a
154     workaround for a problem in fpc 3.0.4 win64).
155    
156     26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
157    
158 tony 83 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
159    
160 tony 51 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
161 tony 49
162 tony 51 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
163 tony 49 include remote system name.
164    
165     2. TIBExtract: No longer include comment header and COMMIT statement for empty
166     tables when data included in output.
167    
168     3. Profiling: IBSQL now has conditional compilation flags to enable query performance
169     and timing information to be written to stdout. This may be used to locate
170     performance bottlenecks.
171    
172     4. SQLParser: only call "OnChanging" event handler when value is different.
173    
174     5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
175    
176 tony 50 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
177     that BindFields is called when the query is next activated. Avoids FieldName
178     not found error.
179    
180 tony 80 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
181     purpose and allows the programmer to define any action they want for Update, Insert
182     or Delete. This may be complex SQL (similar to a Trigger), application specific
183     filtering of updates, or use of statements such as Grant or Revoke instead of
184     normal DML. See User Manual for more information.
185    
186 tony 47 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
187 tony 45
188 tony 47 1. TIBEvents: Fix uninitialised variable that could result in lost events.
189 tony 45
190 tony 47 2. TIBExtract: Added support for FB3 "USAGE" privilege.
191    
192     3. TIBExtract: data formatted as Charset set "octets" is now output using
193     hexadecimal notation.
194    
195     4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
196     using a simple XML format.
197    
198     5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
199     grants to these objects.
200    
201     6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
202     dependency problems restoring complex databases.
203    
204     7. TIBXScript: This component has been restructured to allow for the processing of
205     embedded XML in INSERT statements and to support interactive sources in addition
206     to non-interactive data sources such as files.
207    
208     8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
209    
210     9. TIBXScript: ISQL compatiable Set statements are now supported:
211     SET SQL DIALECT
212     SET TERM
213     SET AUTODDL
214     SET BAIL
215     SET ECHO
216     SET COUNT
217     SET STATS
218     SET NAMES <character set>
219    
220     10. IBVersion unit added to hold current IBX Version Number information.
221    
222     11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
223     and domain definitions.
224    
225     12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
226     fully supported.
227    
228     13. TIBExtract: when a database dump includes data, the generator values are now also set.
229    
230     14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
231    
232     IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
233    
234 tony 50 See also doc/IBX4LazarusGuide.pdf for important information on
235 tony 45 upgrading to IBX2.
236    
237     1. Size property of TIBStringField is now the width in characters of the field
238     and not the byte length. This applies only to multi-byte character sets such
239     as UTF8. The original approach aligned with TStringField. However, the TStringField
240     code is not recognised as a bug and hence this change to align the behaviour.
241     The TStringField change is expected in fpc 3.2.0.
242    
243     2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
244     true (default) then Size property value saved in the lfm is ignored. Size is
245     always set from the dynamic information read from the database. It is unclear
246     why anyone would want to override this and set Size to false.
247    
248     3. ibxscript: should now handle correctly a Case..End statement within a procedure
249     block.
250    
251     4. IBDatabase: new property - CreateIfNotExists. If true and database does not
252     exist when an attempt is made to connect to it (run time only) then an attempt
253     is made to create the database.
254    
255     5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
256     has been successfully created as a result of a call to CreateDatabase or when
257     creating a database after it was found not to exist.
258    
259     6. DBControlGrid: a race condition could result in the wrong row image being
260     written to the cache. This has been avoided by a trip round the message
261     loop before rendering the row image.
262    
263     7. DBControlGrid: It is strongly recommended not to open the source DataSet for
264     a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
265     known to risk corrupt rendering of row images when the control is first
266     displayed. If necessary use "Application.QueueAsyncCall" to delay opening
267     of the dataset (see DBControlGrid examples) until the Form's Window has been created.
268    
269     8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
270     a TDateEdit control located on an editor panel.
271    
272     9. TIBExtract: brought up-to-date plus many bug fixes.
273    
274     10. DBControlGrid: Removed memory leak when updating rows.
275    
276     11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
277    
278 tony 43 IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
279    
280     1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
281     when target codepage is CP_NONE. This is a workaround for
282     http://bugs.freepascal.org/view.php?id=30622.
283    
284     2. DBLog option removed from TIBStatisticalService - not supported by server
285     since Firebird 1.5.
286    
287     3. ibxscript: An error is no longer generated for "on commit preserve rows" or
288     similar.
289    
290     4. IBCodePage: updated mapping between codepages and character id.
291    
292     5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
293     Firebird. Character sets with a char width of two are not UTF16.
294    
295     6. Strings received from the database are now always transliterated into UTF8
296     regardless of the database character set or connection character set. This
297     is for compatibility with the LCL.
298    
299 tony 45 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
300 tony 41
301     1. IBBlob: Defer reading of blob until read method called. This avoids having to
302     read in an entire blob just to get the size of the blob. General performance
303     improvement when opening datasets containing blobs.
304    
305     2. Clearing a Blob now sets the corresponding field's modified flag.
306    
307     3. IBLookupCombo: When not performing auto-complete, original query sort order
308     is now used.
309    
310     4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
311     determined.
312    
313     5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
314    
315     6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
316     lazarus 1.6.0
317    
318     7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
319     compilation error.
320    
321 tony 39 IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
322    
323     1. No character set specified for connection: when a text blob is retrieved, the
324     character set is determined by looking up the native character set using then
325     Firebird API. Otherwise a text mode blob is assumed to have the same character
326     set as the connection.
327    
328     2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
329     for Login Dialog returing a change to the database path.
330    
331     3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
332     to be changed from that given in the TIBDatabase/TIBServer component and for the
333     entered value to be saved on a project specific basis (design time only).
334    
335     4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
336     column fieldname. If they are the same then it is acts as a look up for the KeyValue
337     Otherwise, it sets the column text to the selected ListField Value.
338    
339     5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
340     column width.
341    
342     6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
343     and a case insensitive search is requested.
344    
345     7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
346     or column ListSource.
347    
348     8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
349     unprepare) when closing and the text has not changed.
350    
351     9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
352     Less likely to cause a cursor re-use error on Windows.
353    
354     10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
355     Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
356    
357     11. TIBTreeView: Guard against nil destination on record changed
358    
359     12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
360     string type with the code page set to reflect the returned field encoding after
361     Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
362     earlier versions.
363    
364     13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
365     will now result in transliteration to the code page specified for the Firebird driver
366     if the assigned string has a different code page. FPC 3.0.0 onwards only.
367    
368     14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
369     is ignored and the lc_ctype value, when the database is opened, is set to align with
370     the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
371     platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
372     3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
373     the GETACP is used to determine the Windows code page.
374    
375     15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
376     name used as the lc_ctype when the database was opened. Only valid while the
377     Database is connected.
378    
379     16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
380     id that corresponds to the DefaultCharSetName.
381    
382 tony 37 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
383    
384     1. Unix: If Firebird Embedded Server shared object is loaded and a local database
385     path is given and database attach fails due to access permission issues on the
386     temp directory or security database, then the attach is retried with "localhost:"
387     prefixing the databasename. This should avoid problems when the database has to
388     be accessed by a local (e.g. classic) server and libfbembed is used.
389    
390     2. Windows: revised search order for Firebird DLL:
391     i. The Firebird Embedded Server in the application Directory.
392     ii. If the FIREBIRD environment variable is set then the directory this
393     points to is searched for the FB Client DLL and then then underlying
394     "bin" directory.
395     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
396     is used to locate the Firebird installation directory and the underlying
397     "bin" directory is searched for the FB Client DLL.
398     iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
399     are searched for the FB Client DLL.
400     v. The PATH Environment variable is used to search for the FB Client DLL.
401     vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
402    
403     3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
404     See doc/readme.scriptengine and example applications.
405    
406     4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
407     simplify the use of the embedded firebird server on both Linux and Windows platforms.
408     See dpc/readme.localdatabase and example applications.
409    
410     5. IBDynamicGrid: Reordering on column header click should now also work for
411     dynamic columns.
412    
413     6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
414     between incrementing/decrementing the lock count and signalling the event.
415    
416 tony 35 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
417    
418 tony 37 1.3.2 was never formally released and only made available as beta copies.
419    
420 tony 35 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
421    
422     2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
423    
424     3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
425    
426     4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
427     i.e. when it is a calculated field
428    
429     5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
430     This problem was due to a race condition between recalculating row heights and
431     determining which row was selected by the mouse click. The row height calculation
432     is now deferred by an extra trip round the message loop allowing the row to
433     be always calculated on the current grid layout rather than risking it being
434     calculated on the grid layout after the expanded row has been shrunk.
435    
436     6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
437     Windows.
438    
439     7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
440     These properties allow the (Firebird) character set name for the field and the max number of bytes per character
441 tony 37 to be determined at runtime. See doc/readme.charactersets.html.
442 tony 35
443     8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
444 tony 37 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
445 tony 35
446     9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
447     TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
448 tony 37 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
449 tony 35
450     Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
451     from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
452     implies no truncation.
453    
454     10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
455    
456     11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
457     (avoids "Not in Edit Mode" error).
458    
459     12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
460    
461     13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
462     DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
463    
464     14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
465    
466     15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
467    
468     16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
469    
470     17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
471    
472 tony 33 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
473 tony 31
474     1. OnCloseUp Event Handler added to TDBLookupProperties
475    
476     2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
477     problem with row size when exception is called.
478    
479     3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
480    
481     4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
482     in a TCustomComboBox and ignores return key if in a TCustomMemo
483    
484     5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
485     keyed in i.e. when autocomplete not performed
486    
487 tony 33 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
488     console mode applications with all LCL required functions (builtin dialogs and
489     cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
490     not included in your project, IBX should compile and link with a console mode program.
491     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
492     console mode application or the IDE will automatically assume that your
493     application is GUI based. Instead, you should include the ibexpressconsolemode package.
494 tony 31
495     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
496     to use the built in dialogs and cursor management. IBDialogs is
497 tony 33 included by default if "ibexpress" is in your project source's "uses" clause.
498 tony 31 This should be the case for all projects created through the IDE. This is why
499     you do not want to add the ibexpress package to console mode applications. The
500     ibexpressconsolemode package has been created to allow console mode programs
501     to avoid adding LCL dependencies when using IBX, while still having the
502     unit search paths set up correctly.
503    
504 tony 33 Existing users should check to ensure that the "ibexpress" unit is included in
505     each project's source file (*.lpr).
506    
507 tony 31 You may find that in order for the IDE to recognise that ibexpressconsolemode
508     exists, you have to first open the package in the IDE and then close it. This
509     adds it to the most recently accessed packages list. To make it permanently
510     available, add the package name to lazarus' staticpackages.inc file.
511    
512 tony 33 Thanks to Julio Jiménez for suggesting support of console mode.
513 tony 31
514     7. SQL Parser can now accept quoted strings that include new lines
515    
516     8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
517     of text on start of edit. This is particularly useful when tabbing to a
518     column and then inserting text.
519    
520     9. New Examples provided for IB Services and ISQLMonitor.
521    
522     10. Fix error when writing to blob streams that recorded only the last buffer
523     write in the blob stream. In most cases, this did not cause a problem as the
524     IB Blob Stream is written in a single write. However, with the TDBImage, write
525     of a graphic type prefix was lost which caused a problem when the image could
526     not be automatically recognised.
527    
528     11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
529 tony 33 already open" errors due to random numbers used for the cursor name being identical.
530 tony 31
531     12. IBTable: corrected error that could result in an "Index out of bounds" error
532     when opening the table and the Primary Key is the last or only column in the
533     table. Thanks to Rick Hoover for the fix.
534    
535 tony 33 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
536     of "UTF-8", and update list of available database character sets. Existing
537     users should check the current lc_ctype setting in their applications.
538 tony 29
539 tony 33 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
540    
541 tony 29 1. Firebird Services: avoid List Index error when opening a service with an
542     empty Params property.
543    
544     2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
545     Link now set up in Loaded method - avoids occasional failure to apply
546     SQL markup on initial open.
547    
548     3. "Employees" example performance improvements when scrolling.
549    
550     4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
551     TFrame. Force recaching of selected frame to avoid GTK race (results in a
552     random image cached).
553    
554     5. DBControlGrid: Should now react to changes in panel height at run time.
555    
556     6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
557     even when further rows exist.
558    
559     7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
560     always be derived from panel height and setting this property can cause confusion.
561     Note for existing projects: to avoid a missing property error at run time,
562     each form using the DBControlGrid must be opened, updated and saved in the IDE
563     in order to remove the property value from the lfm.
564    
565    
566 tony 33 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
567 tony 27
568     1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
569     call Prepare before setting parameter values.
570    
571     2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
572    
573     3. Code tidyup and more robust handling of dsql information result vector.
574    
575     4. Support for centralised handling of transaction status changes. TIBTransaction
576     has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
577     and "AfterExecQuery". The first three are called after the same event is called
578     for an IBCustomDataSet descendent using the Transaction. The fourth is called
579     after a call to TIBSQL.ExecQuery, again using this transaction. These new events
580     enable monitoring of transaction status changes for a given transaction to be
581     handled in a single place. For example, when a change to the dataset occurs
582     an indicator can be set that shows the user that in order to save changes,
583     the transaction should be committed. Rather than doing this per dataset, this
584     can now be done per transaction.
585    
586     5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
587     the dataset is scrolled. However, any changes to the current row are, by default,
588     discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
589     have a new property "DataSetCloseAction" that adds automatic posting of changes
590     on dataset close. If this property is set to dcDiscardChanges (default) then the
591     behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
592     then IBX will attempt to post any unsaved changes before the dataset is closed
593     (and after the BeforeClose event handler is called). The exception is when the
594     dataset is being closed as a result of a transaction rollback. In this case,
595     no action is taken and any unsaved changes are discarded. This avoids both
596     unnecessary overhead and the risk that a validation error may occur in the Post
597     raising an exception and thereby preventing a rollback.
598    
599     6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
600     In earlier versions, the Display Width was set to the maximum byte width rather than the character
601     width. Display Widths are now corrected by dividing by the max byte width per character.
602     For UTF8 character sets, the byte width is four and hence the Display Width will be
603     the byte width divided by 4. The byte width of each character set is determined
604     dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
605     system table. (see also http://bugs.freepascal.org/view.php?id=27766).
606    
607     7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
608    
609     8. IBLookupComboEditBox: List should now always be restored to full list when the
610     control loses focus. Default Key press default interval reduced to 200ms.
611    
612     9. DBControlGrid: Ensure that selection is changed to newly appended row, even
613     when dataset rows are less than visible rows.
614    
615     10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
616     does not exist or DataSet is empty. More responsive on dataset open. New event
617     OnRestorePosition. Column sort disabled if no header row.
618    
619     11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
620     while dataset state is dsInsert. Avoids posting errors.
621    
622     12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
623     avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
624    
625     13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
626    
627     14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
628     to solve a specific problem. That is when the dataset cursor is moved (e.g. by
629     a grid mouse click and the current row is being edited or inserted. In this case, TDataset
630     always "posts" the current record regardless or whether or not it may be more appropriate
631     to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
632     "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
633     as the first action of the "Post" method and allows the handler to convert the Post
634     into a Cancel if that is the appropriate action on moving to a different row. This is
635     achieved by returning with "CancelPost" argument set to true. Note that an exception could be
636     raised here, but it may still be more appropriate to validate a post and signal
637     a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
638    
639     15. On Unix derived systems, the Firebird library name can now be given as a colon
640     separated list. Each library name on the list is tried in turn, in left to right
641     order with the first found being used as the firebird library. By default, on Linux,
642     the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
643     overidden by the FBLIB environment variable or the OnGetLibraryName function.
644    
645     Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
646     then it will still attempt to access the database via the Firebird Server and will
647     require a username and password. If only the pathname is given, then the username
648     and password should be omitted and the unix file permissions are used to grant
649     access.
650    
651 tony 33 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
652 tony 23
653     1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
654     rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
655     that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
656 tony 27 corresponds to a row of the linked DataSource. Any data aware control on the
657 tony 23 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
658    
659     2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
660 tony 25 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
661 tony 23 takes place during database access. This may be useful when there are performance issues with
662     the change of cursor. Setting the property to false suppresses the change of cursor.
663    
664     3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
665     and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
666     Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
667     making all changes permanent immediately rather than when the transaction is explicitly
668     committed.
669    
670 tony 25 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
671 tony 27 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
672 tony 23
673 tony 33 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
674 tony 25
675     Development version only.
676    
677 tony 33 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
678 tony 21
679     1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
680     This is typically used during an "OnBeforeOpen" event handler to manipulate the
681     "Where" and "Having" clauses to implement user specified filters of arbitrary
682     complexity.
683    
684     2. A new Component Palette entry "Firebird Data Controls" is now available. This has
685     three new data aware controls dependent on IBX and which make use of the SQL Parser.
686     These are:
687    
688     - TIBLookupComboEditBox
689     - TIBDynamicGrid
690     - TIBTreeview
691    
692     TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
693     of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
694     to revise the available list and restrict it to items that are prefixed by the
695 tony 25 typed text (either case sensitive or case insensitive). Autoinsert allows a
696 tony 21 newly typed entry to be added to the list dataset and included in the available
697     list items.
698    
699     TIBDynamicGrid is a TDBGrid descendent that provides for:
700     - automatic resizing of selected columns to fill the available row length
701     - automatic positioning and sizing of a "totals" control, typically at the
702     column footer, on a per column basis.
703     - DataSet resorting on header row click, sorting the dataset by the selected column.
704     A second click on the same header cell reversed the sort order.
705     - Support for a "Panel Editor". That is on clicking the indicator column, the row
706     is automatically expanded and a panel superimposed on it. The panel can have any
707     number of child controls, typically data aware controls with the same datasource
708     as the grid allowing for editing of additional fields and more complex editors.
709     - Reselection of the same row following resorting.
710     - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
711     Its properties are specified on a per column basis and allows for one or more
712     columns to have their values selected from a list provided by a dataset.
713     Autocomplete and autoinsert are also available. The existing picklist editor
714     is unaffected by the extension.
715    
716     TIBTreeView is a data aware TCustomTreeView.
717    
718     3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
719     zero scale will no longer return an error. An Int64 will be returned instead.
720    
721     4. TIBTransaction now has events for Before and After Transaction End and a new function
722     "GetEndAction" allowing the EndAction to be accessed by these event handlers.
723    
724     5. TIBQuery can now handle correctly queries which contain the same keyword parameter
725     repeated multiple times.
726    
727     6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
728     check used to get in the way of using Stored Procedures, and "Update or Insert"
729     statements.
730    
731     7. Insert, Modify and Delete property Editors now support Query Generation from
732     Stored Procedures.
733    
734     8. Three new examples illustrate the use of the new IB Controls
735    
736    
737 tony 33 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
738 tony 19
739     1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
740     setting performance. See "readme.field+param.names in the doc folder.(Thanks to
741     Gabor Boros for reporting this problem and for testing the improvements).
742    
743     2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
744     See readme.field+param.names in the doc folder.
745    
746     3. IBX SQL Editors will now automatically add double quotes around column names when the database
747     dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
748    
749     4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
750    
751     5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
752     actions.
753    
754     6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
755     thanks to Yuriy Kopnin for pointing this out).
756    
757     7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
758    
759     8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
760     for both fields and parameter setting.
761    
762     9. Changes to the Select SQL in an IBCustomDataset descendent should now be
763     visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
764    
765     10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
766     when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
767    
768     11. TIBTable now has a property editor for "MasterFields"
769    
770     12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
771     GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
772    
773     13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
774     of settings is unrecognised. Selecting this radio button has no effect on the settings.
775    
776    
777 tony 17 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
778    
779     1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
780    
781 tony 15 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
782    
783     1. In a TIBCustomDataset descendent, a generator now only sets the value when
784     it is null. This allows for alternative user defined setting of the generator
785    
786     Many thanks to Julio Jiménez for this fix
787    
788     2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
789     and suggests that the user may have forgotten to install it.
790    
791 tony 13 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
792    
793     1. Conditional compilation used to limit registration of TIntegerField to
794     Lazarus versions less than 1.1
795    
796     2. When a database connection is created, character set is now by default set
797     to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
798     1250 to 1254.
799    
800    
801 tony 11 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
802    
803     1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
804    
805    
806 tony 9 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
807 tony 7
808     1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
809     Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
810    
811     2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
812     package is changed to do this (which it should do).
813    
814     IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
815    
816     1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
817    
818     2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
819    
820     3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
821    
822     4. Property editors should now correctly resize.
823    
824     5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
825     (restored original functionality)
826    
827     6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
828     library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.