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Revision: 37
Committed: Mon Feb 15 14:44:25 2016 UTC (5 years, 2 months ago) by tony
File size: 24620 byte(s)
Log Message:
Committing updates for Release R1-4-0
Line File contents
1 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
2
3 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
4 path is given and database attach fails due to access permission issues on the
5 temp directory or security database, then the attach is retried with "localhost:"
6 prefixing the databasename. This should avoid problems when the database has to
7 be accessed by a local (e.g. classic) server and libfbembed is used.
8
9 2. Windows: revised search order for Firebird DLL:
10 i. The Firebird Embedded Server in the application Directory.
11 ii. If the FIREBIRD environment variable is set then the directory this
12 points to is searched for the FB Client DLL and then then underlying
13 "bin" directory.
14 iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
15 is used to locate the Firebird installation directory and the underlying
16 "bin" directory is searched for the FB Client DLL.
17 iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
18 are searched for the FB Client DLL.
19 v. The PATH Environment variable is used to search for the FB Client DLL.
20 vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
21
22 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
23 See doc/readme.scriptengine and example applications.
24
25 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
26 simplify the use of the embedded firebird server on both Linux and Windows platforms.
27 See dpc/readme.localdatabase and example applications.
28
29 5. IBDynamicGrid: Reordering on column header click should now also work for
30 dynamic columns.
31
32 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
33 between incrementing/decrementing the lock count and signalling the event.
34
35 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
36
37 1.3.2 was never formally released and only made available as beta copies.
38
39 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
40
41 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
42
43 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
44
45 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
46 i.e. when it is a calculated field
47
48 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
49 This problem was due to a race condition between recalculating row heights and
50 determining which row was selected by the mouse click. The row height calculation
51 is now deferred by an extra trip round the message loop allowing the row to
52 be always calculated on the current grid layout rather than risking it being
53 calculated on the grid layout after the expanded row has been shrunk.
54
55 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
56 Windows.
57
58 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
59 These properties allow the (Firebird) character set name for the field and the max number of bytes per character
60 to be determined at runtime. See doc/readme.charactersets.html.
61
62 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
63 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
64
65 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
66 TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
67 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
68
69 Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
70 from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
71 implies no truncation.
72
73 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
74
75 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
76 (avoids "Not in Edit Mode" error).
77
78 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
79
80 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
81 DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
82
83 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
84
85 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
86
87 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
88
89 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
90
91 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
92
93 1. OnCloseUp Event Handler added to TDBLookupProperties
94
95 2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
96 problem with row size when exception is called.
97
98 3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
99
100 4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
101 in a TCustomComboBox and ignores return key if in a TCustomMemo
102
103 5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
104 keyed in i.e. when autocomplete not performed
105
106 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
107 console mode applications with all LCL required functions (builtin dialogs and
108 cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
109 not included in your project, IBX should compile and link with a console mode program.
110 See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
111 console mode application or the IDE will automatically assume that your
112 application is GUI based. Instead, you should include the ibexpressconsolemode package.
113
114 IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
115 to use the built in dialogs and cursor management. IBDialogs is
116 included by default if "ibexpress" is in your project source's "uses" clause.
117 This should be the case for all projects created through the IDE. This is why
118 you do not want to add the ibexpress package to console mode applications. The
119 ibexpressconsolemode package has been created to allow console mode programs
120 to avoid adding LCL dependencies when using IBX, while still having the
121 unit search paths set up correctly.
122
123 Existing users should check to ensure that the "ibexpress" unit is included in
124 each project's source file (*.lpr).
125
126 You may find that in order for the IDE to recognise that ibexpressconsolemode
127 exists, you have to first open the package in the IDE and then close it. This
128 adds it to the most recently accessed packages list. To make it permanently
129 available, add the package name to lazarus' staticpackages.inc file.
130
131 Thanks to Julio Jiménez for suggesting support of console mode.
132
133 7. SQL Parser can now accept quoted strings that include new lines
134
135 8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
136 of text on start of edit. This is particularly useful when tabbing to a
137 column and then inserting text.
138
139 9. New Examples provided for IB Services and ISQLMonitor.
140
141 10. Fix error when writing to blob streams that recorded only the last buffer
142 write in the blob stream. In most cases, this did not cause a problem as the
143 IB Blob Stream is written in a single write. However, with the TDBImage, write
144 of a graphic type prefix was lost which caused a problem when the image could
145 not be automatically recognised.
146
147 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
148 already open" errors due to random numbers used for the cursor name being identical.
149
150 12. IBTable: corrected error that could result in an "Index out of bounds" error
151 when opening the table and the Primary Key is the last or only column in the
152 table. Thanks to Rick Hoover for the fix.
153
154 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
155 of "UTF-8", and update list of available database character sets. Existing
156 users should check the current lc_ctype setting in their applications.
157
158 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
159
160 1. Firebird Services: avoid List Index error when opening a service with an
161 empty Params property.
162
163 2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
164 Link now set up in Loaded method - avoids occasional failure to apply
165 SQL markup on initial open.
166
167 3. "Employees" example performance improvements when scrolling.
168
169 4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
170 TFrame. Force recaching of selected frame to avoid GTK race (results in a
171 random image cached).
172
173 5. DBControlGrid: Should now react to changes in panel height at run time.
174
175 6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
176 even when further rows exist.
177
178 7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
179 always be derived from panel height and setting this property can cause confusion.
180 Note for existing projects: to avoid a missing property error at run time,
181 each form using the DBControlGrid must be opened, updated and saved in the IDE
182 in order to remove the property value from the lfm.
183
184
185 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
186
187 1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
188 call Prepare before setting parameter values.
189
190 2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
191
192 3. Code tidyup and more robust handling of dsql information result vector.
193
194 4. Support for centralised handling of transaction status changes. TIBTransaction
195 has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
196 and "AfterExecQuery". The first three are called after the same event is called
197 for an IBCustomDataSet descendent using the Transaction. The fourth is called
198 after a call to TIBSQL.ExecQuery, again using this transaction. These new events
199 enable monitoring of transaction status changes for a given transaction to be
200 handled in a single place. For example, when a change to the dataset occurs
201 an indicator can be set that shows the user that in order to save changes,
202 the transaction should be committed. Rather than doing this per dataset, this
203 can now be done per transaction.
204
205 5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
206 the dataset is scrolled. However, any changes to the current row are, by default,
207 discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
208 have a new property "DataSetCloseAction" that adds automatic posting of changes
209 on dataset close. If this property is set to dcDiscardChanges (default) then the
210 behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
211 then IBX will attempt to post any unsaved changes before the dataset is closed
212 (and after the BeforeClose event handler is called). The exception is when the
213 dataset is being closed as a result of a transaction rollback. In this case,
214 no action is taken and any unsaved changes are discarded. This avoids both
215 unnecessary overhead and the risk that a validation error may occur in the Post
216 raising an exception and thereby preventing a rollback.
217
218 6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
219 In earlier versions, the Display Width was set to the maximum byte width rather than the character
220 width. Display Widths are now corrected by dividing by the max byte width per character.
221 For UTF8 character sets, the byte width is four and hence the Display Width will be
222 the byte width divided by 4. The byte width of each character set is determined
223 dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
224 system table. (see also http://bugs.freepascal.org/view.php?id=27766).
225
226 7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
227
228 8. IBLookupComboEditBox: List should now always be restored to full list when the
229 control loses focus. Default Key press default interval reduced to 200ms.
230
231 9. DBControlGrid: Ensure that selection is changed to newly appended row, even
232 when dataset rows are less than visible rows.
233
234 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
235 does not exist or DataSet is empty. More responsive on dataset open. New event
236 OnRestorePosition. Column sort disabled if no header row.
237
238 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
239 while dataset state is dsInsert. Avoids posting errors.
240
241 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
242 avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
243
244 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
245
246 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
247 to solve a specific problem. That is when the dataset cursor is moved (e.g. by
248 a grid mouse click and the current row is being edited or inserted. In this case, TDataset
249 always "posts" the current record regardless or whether or not it may be more appropriate
250 to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
251 "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
252 as the first action of the "Post" method and allows the handler to convert the Post
253 into a Cancel if that is the appropriate action on moving to a different row. This is
254 achieved by returning with "CancelPost" argument set to true. Note that an exception could be
255 raised here, but it may still be more appropriate to validate a post and signal
256 a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
257
258 15. On Unix derived systems, the Firebird library name can now be given as a colon
259 separated list. Each library name on the list is tried in turn, in left to right
260 order with the first found being used as the firebird library. By default, on Linux,
261 the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
262 overidden by the FBLIB environment variable or the OnGetLibraryName function.
263
264 Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
265 then it will still attempt to access the database via the Firebird Server and will
266 require a username and password. If only the pathname is given, then the username
267 and password should be omitted and the unix file permissions are used to grant
268 access.
269
270 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
271
272 1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
273 rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
274 that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
275 corresponds to a row of the linked DataSource. Any data aware control on the
276 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
277
278 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
279 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
280 takes place during database access. This may be useful when there are performance issues with
281 the change of cursor. Setting the property to false suppresses the change of cursor.
282
283 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
284 and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
285 Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
286 making all changes permanent immediately rather than when the transaction is explicitly
287 committed.
288
289 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
290 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
291
292 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
293
294 Development version only.
295
296 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
297
298 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
299 This is typically used during an "OnBeforeOpen" event handler to manipulate the
300 "Where" and "Having" clauses to implement user specified filters of arbitrary
301 complexity.
302
303 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
304 three new data aware controls dependent on IBX and which make use of the SQL Parser.
305 These are:
306
307 - TIBLookupComboEditBox
308 - TIBDynamicGrid
309 - TIBTreeview
310
311 TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
312 of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
313 to revise the available list and restrict it to items that are prefixed by the
314 typed text (either case sensitive or case insensitive). Autoinsert allows a
315 newly typed entry to be added to the list dataset and included in the available
316 list items.
317
318 TIBDynamicGrid is a TDBGrid descendent that provides for:
319 - automatic resizing of selected columns to fill the available row length
320 - automatic positioning and sizing of a "totals" control, typically at the
321 column footer, on a per column basis.
322 - DataSet resorting on header row click, sorting the dataset by the selected column.
323 A second click on the same header cell reversed the sort order.
324 - Support for a "Panel Editor". That is on clicking the indicator column, the row
325 is automatically expanded and a panel superimposed on it. The panel can have any
326 number of child controls, typically data aware controls with the same datasource
327 as the grid allowing for editing of additional fields and more complex editors.
328 - Reselection of the same row following resorting.
329 - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
330 Its properties are specified on a per column basis and allows for one or more
331 columns to have their values selected from a list provided by a dataset.
332 Autocomplete and autoinsert are also available. The existing picklist editor
333 is unaffected by the extension.
334
335 TIBTreeView is a data aware TCustomTreeView.
336
337 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
338 zero scale will no longer return an error. An Int64 will be returned instead.
339
340 4. TIBTransaction now has events for Before and After Transaction End and a new function
341 "GetEndAction" allowing the EndAction to be accessed by these event handlers.
342
343 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
344 repeated multiple times.
345
346 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
347 check used to get in the way of using Stored Procedures, and "Update or Insert"
348 statements.
349
350 7. Insert, Modify and Delete property Editors now support Query Generation from
351 Stored Procedures.
352
353 8. Three new examples illustrate the use of the new IB Controls
354
355
356 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
357
358 1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
359 setting performance. See "readme.field+param.names in the doc folder.(Thanks to
360 Gabor Boros for reporting this problem and for testing the improvements).
361
362 2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
363 See readme.field+param.names in the doc folder.
364
365 3. IBX SQL Editors will now automatically add double quotes around column names when the database
366 dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
367
368 4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
369
370 5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
371 actions.
372
373 6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
374 thanks to Yuriy Kopnin for pointing this out).
375
376 7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
377
378 8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
379 for both fields and parameter setting.
380
381 9. Changes to the Select SQL in an IBCustomDataset descendent should now be
382 visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
383
384 10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
385 when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
386
387 11. TIBTable now has a property editor for "MasterFields"
388
389 12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
390 GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
391
392 13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
393 of settings is unrecognised. Selecting this radio button has no effect on the settings.
394
395
396 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
397
398 1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
399
400 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
401
402 1. In a TIBCustomDataset descendent, a generator now only sets the value when
403 it is null. This allows for alternative user defined setting of the generator
404
405 Many thanks to Julio Jiménez for this fix
406
407 2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
408 and suggests that the user may have forgotten to install it.
409
410 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
411
412 1. Conditional compilation used to limit registration of TIntegerField to
413 Lazarus versions less than 1.1
414
415 2. When a database connection is created, character set is now by default set
416 to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
417 1250 to 1254.
418
419
420 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
421
422 1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
423
424
425 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
426
427 1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
428 Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
429
430 2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
431 package is changed to do this (which it should do).
432
433 IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
434
435 1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
436
437 2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
438
439 3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
440
441 4. Property editors should now correctly resize.
442
443 5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
444 (restored original functionality)
445
446 6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
447 library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.