ViewVC Help
View File | Revision Log | Show Annotations | Download File | View Changeset | Root Listing
root/public/ibx/trunk/changelog
Revision: 151
Committed: Tue Feb 27 11:20:19 2018 UTC (3 years, 2 months ago) by tony
File size: 49225 byte(s)
Log Message:
Fixes Merged
Line User Rev File contents
1 tony 149 IBX Change Log version (2.2-0) Mon, 26 Feb 2018 11:49:23 +0000
2 tony 101
3 tony 151 NOTE: THE LOCATIONS OF SOME OF THE UNIT DIRECTORIES HAS CHANGED FROM IBX 2.1. THIS IS TO
4     AVOID DUPLICATE PPU ERRORS. PLEASE REMOVE EARLIER VERSIONS OF IBX BEFORE INSTALLING THIS
5     RELEASE.
6    
7     NOTE: THE DBADMIN DEMO REQUIRES THAT THE MemDSLaz PACKAGE IS INSTALLED IN THE LAZARUS IDE.
8    
9 tony 107 1. IBExtract: Identity columns - add additional check for null column for generator name.
10 tony 101
11     2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
12     The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
13 tony 107 information). However, this is also a very useful mechanism for returning updated computed by
14     column values. Values returned as a result of executing an Insert or Update statement
15     replace existing values in the current row for each corresponding column.
16 tony 101
17 tony 107 Previously, if a dataset's select query included read only (computed by) fields then
18     an automatic row refresh was performed after an insert or update query had been processed,
19     irrespective of the setting of the "ForcedUpdates" property. This has changed such
20     that an automatic refresh is no longer performed if an insert or update query contains
21     a returning clause that updates one or more fields on the current row. A full row
22     refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
23     field values and the select query contains read only fields. Use of Insert/update
24 tony 123 returning should be significantly more efficient than executing a refresh query.
25 tony 107
26     This behaviour change is intended to be backwards compatible and there should be no need to change
27     existing programs, other than to improve performance by using the new capability.
28    
29 tony 118 3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
30     they are called when the dataset row is being deleted, there is no value in
31     updating the current record from the query result. Instead, a new event handler
32     "OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
33     an OnDeleteReturning event handler is provided then it is called with the IResults returned
34     by the query. The event handler can then interrogate the query results and
35     perform whatever action is necessary. For example to confirm, to the user,
36     the deletion of a row with the returned values.
37    
38     4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
39 tony 107 any Computed By or Identity Columns. The IBTables example has been updated to
40     illustrate the computation of the employee Full Name on update.
41    
42 tony 118 5. TIBTable: The GeneratorField property is now published.
43 tony 107
44 tony 118 6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
45 tony 101 When InsertSQL is generated, the Identity columns are not included in the list of values to
46     be inserted. A RETURNING clause is added to the insert statement to return the value of
47     each Identity column after the insert is executed.
48    
49 tony 118 7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
50 tony 107 Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
51     Insert..Returning clause.
52 tony 104
53 tony 118 8. TIBGenerator: small performance improvement by not preparing query each time
54 tony 107 a new value is generated.
55 tony 104
56 tony 118 9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
57 tony 107
58 tony 118 10. Property editors will now sync table name to a System Table when "Include System
59     Tables" is selected and the query is for a System Table.
60 tony 105
61 tony 118 11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
62 tony 107 values are no longer converted to milliseconds from TDateTime and then back again
63     to TDateTime (the conversion to milliseconds is the default TDataset approach).
64 tony 105
65 tony 118 12. Property Editors handling of Stored Procedures.
66 tony 107 * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
67     which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
68     query).
69     * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
70 tony 106
71 tony 118 13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
72 tony 107 can be used to select a package. If non-empty, the stored procedure name is
73     expected to be a stored procedure defined in the specified package and the
74     generated SQL will be as required for a stored procedure located in a package.
75    
76 tony 118 14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
77 tony 107 a "Package Name" drop down box to allow selection of a Firebird 3 Package from
78     which a stored procedure can be selected. With no package name selected, non-package
79     stored procedures are listed.
80    
81 tony 118 15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
82 tony 109 for password on reconnect.
83 tony 107
84 tony 143 16. TIBDatabase: use IAttachment for connection default character set id, code page
85 tony 118 and character set name.
86 tony 109
87 tony 118 17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
88     DB info lookups"
89    
90 tony 143 18. IBExtract: now supports DDL Triggers and Grants to DDL objects.
91 tony 118
92 tony 127 19. Add a property Editor for TIBUpdate.RefreshSQL.
93 tony 118
94 tony 139 20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
95     parameters. This stops an exception being raised when the field cannot be
96     located in the record buffer.
97 tony 127
98 tony 141 21. Property Editors now automatically include System Tables when opened and when the query table
99     is a System Table.
100 tony 139
101 tony 150 22. IBServices: SQRB and SRB buffers are now reset when service query throws an exception.
102 tony 143 This avoids errors due to a stale SQRB or SRB being used for the next query.
103 tony 141
104 tony 143 23. IBServices: Service attach parameters now include "expected_db". This is used to
105     add the SPB item isc_spb_expected_db. This names a database using
106     an alternative Security Database (FB3 onwards) and allows (e.g. backup/restore) using such a
107     database. examples/services re-written to illustrate use of "expected_db".
108 tony 141
109 tony 143 24. IBServices: TIBControlAndQueryService.WriteNextChunk no longer ignores isc_info_svc_timeout.
110     This avoids truncated backups when the server returns a timeout (busy) response.
111    
112     25. TIBDatabase: isc_dpb_page_size now supported as a database parameter when using TIBDatabase.CreateDatabase.
113    
114     26. TIBDatabase: DatabaseName property may now be prefixed by $TEMP$ or $DATADIR$ for local
115     databasenames. These are respectively expanded to the local system's temp directory
116 tony 150 (including trailing delimiter) or to a prescribed data directory (including
117 tony 143 trailing delimiter). Under Unix systems the data directory is a hidden directory
118     in the user's home directory. The hidden directory name is either the string returned
119     from the SysUtils "Vendor Name" or "IBX" if empty. In either case prefixed by a '.'.
120     Under Windows, the directory is the same as the Data Directory as decribed
121     above but instead prefixed by the User's application data path. These may be
122 tony 150 used to improve application portability for Personal Databases.
123 tony 143
124     27. TIBTable: FieldDefs property is no longer published. Due to the use of TIBFieldDef
125     this has not worked for a long time and is not useful either. FieldDefs should be
126     managed using the Fields Editor as with any other dataset. To access the fields
127     editor for a TIBTable component, double click on the component. The fields editor
128     is then displayed.
129    
130     28. TIBDatabaseInfo: new properties/function
131     * DateDBCreated (returns date/time database created)
132     * TransactionCount (returns no. of active transactions)
133     * GetDatabasePage(PageNo: integer) (returns contents of specified database page - SYSDBA only).
134     * PagesFree (Firebird 3 or later)
135     * PagesUsed (Firebird 3 or later)
136     * Encrypted (returns true if database encrypted. (Firebird 3.0.3 or later only)
137     * EncryptionKeyName (returns the name of the encryption key if any (Firebird 3.0.3 or later only)
138    
139     29. IBServices classes now provided the decoded release number in the (array) property ServerVersionNo.
140    
141     30. TIBSecurityService now supports display/modification of the User Admin Role (Firebird 2.5 and later).
142    
143     31. TIBConfigService now has a procedure SetAutoAdmin(Value: boolean) to enable/disable
144     the automtic mapping of privileged OS users to the RDB$ADMIN role (Firebird 2.5 and later).
145    
146     32. TIBBackupService: New Option - NoDBTriggers equivalent to -nodbtriggers switch introduced
147     in the gbak utility at V.2.1 to prevent database-level and transaction-level triggers from
148     firing during backup and restore.
149    
150     33. Both TIBBackupService and TIBRestoreService now support backup/restore statistics options
151     for verbose output using the new property "StatisticsRequested".
152     see https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-util-gbak.html#rnfb25-util-gbakstats
153    
154     34. TIBRestoreService: now supports new options RestoreMetaDataOnly (Firebird 2.5 and later).
155    
156     35. TIBOnlineValidationService component added to the IBServices and the "Firebird Admin"
157     palette. This uses the online validation feature added in Firebird 2.5. The
158     services's properties enable inclusion/exclusion of tables and indexes using
159     regular expressions. See.
160     https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-apiods-api.html#rnfb25-apiods-api-onlinevalidation
161    
162     36. IBServices: procedure TIBConfigService.SetNoLinger added to set no linger
163     option on a database.
164    
165     37. TIBCustomService: Assign method implemented to allow copying of service login
166     context between service API components. "Detach" method now only detaches
167     service when last reference to the service interface detaches. Tidy up of
168     code for SetActive and Attach methods including password hiding.
169    
170 tony 150 38. TIBDatabase: new properties: AuthenticationMethod and RemoteProtocol. Read only
171 tony 143 and used to determine the auth method and protocol used for the connection.
172    
173     39. TIBDatabase: ensure that SQLDialect setting is used when creating a database using
174     a Create Database Statement generated by IBX.
175    
176     40. All IBServices now have an additional published property "PortNo". This may
177     be set to a non-standard port number when necessary. If zero then the default
178     port number is used.
179    
180     41: TIBLookupComboeditBox: Ensure dataset updated when change selected with the keyboard
181     and not just the mouse.
182    
183     42. TIBCustomDataset: reopen query if already active when a TIBControlLink is added.
184    
185     43. TIBTreeview: new ImageIndexField and SelectedIndexField Property allows the
186     image index and selected image index for each node to be set from a database field.
187    
188     44. TIBExtract: new extract type (etGrantsToUser) for use with eoDatabase. If included
189     then database schema includes grants to all users. If not present then the
190     only user grants included are those to User PUBLIC.
191    
192     45. TIBTreeView: performance improvement. When expanding include both expanded node
193     and child nodes in dataset.
194    
195    
196 tony 90 IBX Change Log version (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
197 tony 56
198     1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
199     changes.
200    
201 tony 58 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
202     Bug could result in truncated multi-byte character set values.
203    
204 tony 60 3. Changes consequential on moving fbintf character set utility functions from
205     IFirebirdAPI to IAttachment.
206    
207 tony 62 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
208    
209 tony 64 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
210     results in autocomplete ignoring prefix text.
211    
212 tony 65 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
213     entering a new name into the text box.
214    
215 tony 66 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
216     Firebird rather than recomputing it.
217    
218 tony 67 8. Property Editor positioning tidy up: All IBX Property editors should now be
219     screen centre. Previously some were "poDesigned" which may be inappropriate
220     for multi monitor desktops.
221    
222 tony 80 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
223    
224     11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
225     a transaction and always reset the object.
226    
227     12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
228    
229     13. TIBXScript: Allow for override of database filename in Create Database statements.
230    
231     14. IBLocaldb: Support initialisation of the database from an SQL script in addition
232     to a gbak format archive.
233    
234     15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
235    
236     16. IBLocaldb: Drop database if error creating an empty database.
237    
238     17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
239     unless selected node not in current dataset.
240    
241     18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
242     to TIBCustomService, and IBlocalDB code tidy up.
243    
244     19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
245     behaviour due to uninitialised variable.
246    
247     20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
248     integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
249    
250     21. IBSQL: When Database changed ensure that all resources are freed.
251    
252     22. IBCustomDataset: When database changed ensure that queries an unprepared.
253    
254 tony 84 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
255     * Line Wrap on SQL Token boundaries (on user command)
256     * auto-complete table names in drop down list of table names
257     * Double click on tablename or field name adds to SQL text
258 tony 80
259     24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
260    
261     25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
262     TVariantArray. Seems to avoid memory corruption in Windows (probably a
263     workaround for a problem in fpc 3.0.4 win64).
264    
265     26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
266    
267 tony 83 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
268    
269 tony 51 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
270 tony 49
271 tony 51 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
272 tony 49 include remote system name.
273    
274     2. TIBExtract: No longer include comment header and COMMIT statement for empty
275     tables when data included in output.
276    
277     3. Profiling: IBSQL now has conditional compilation flags to enable query performance
278     and timing information to be written to stdout. This may be used to locate
279     performance bottlenecks.
280    
281     4. SQLParser: only call "OnChanging" event handler when value is different.
282    
283     5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
284    
285 tony 50 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
286     that BindFields is called when the query is next activated. Avoids FieldName
287     not found error.
288    
289 tony 80 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
290     purpose and allows the programmer to define any action they want for Update, Insert
291     or Delete. This may be complex SQL (similar to a Trigger), application specific
292     filtering of updates, or use of statements such as Grant or Revoke instead of
293     normal DML. See User Manual for more information.
294    
295 tony 47 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
296 tony 45
297 tony 47 1. TIBEvents: Fix uninitialised variable that could result in lost events.
298 tony 45
299 tony 47 2. TIBExtract: Added support for FB3 "USAGE" privilege.
300    
301     3. TIBExtract: data formatted as Charset set "octets" is now output using
302     hexadecimal notation.
303    
304     4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
305     using a simple XML format.
306    
307     5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
308     grants to these objects.
309    
310     6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
311     dependency problems restoring complex databases.
312    
313     7. TIBXScript: This component has been restructured to allow for the processing of
314     embedded XML in INSERT statements and to support interactive sources in addition
315     to non-interactive data sources such as files.
316    
317     8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
318    
319     9. TIBXScript: ISQL compatiable Set statements are now supported:
320     SET SQL DIALECT
321     SET TERM
322     SET AUTODDL
323     SET BAIL
324     SET ECHO
325     SET COUNT
326     SET STATS
327     SET NAMES <character set>
328    
329     10. IBVersion unit added to hold current IBX Version Number information.
330    
331     11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
332     and domain definitions.
333    
334     12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
335     fully supported.
336    
337     13. TIBExtract: when a database dump includes data, the generator values are now also set.
338    
339     14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
340    
341     IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
342    
343 tony 50 See also doc/IBX4LazarusGuide.pdf for important information on
344 tony 45 upgrading to IBX2.
345    
346     1. Size property of TIBStringField is now the width in characters of the field
347     and not the byte length. This applies only to multi-byte character sets such
348     as UTF8. The original approach aligned with TStringField. However, the TStringField
349     code is not recognised as a bug and hence this change to align the behaviour.
350     The TStringField change is expected in fpc 3.2.0.
351    
352     2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
353     true (default) then Size property value saved in the lfm is ignored. Size is
354     always set from the dynamic information read from the database. It is unclear
355     why anyone would want to override this and set Size to false.
356    
357     3. ibxscript: should now handle correctly a Case..End statement within a procedure
358     block.
359    
360     4. IBDatabase: new property - CreateIfNotExists. If true and database does not
361     exist when an attempt is made to connect to it (run time only) then an attempt
362     is made to create the database.
363    
364     5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
365     has been successfully created as a result of a call to CreateDatabase or when
366     creating a database after it was found not to exist.
367    
368     6. DBControlGrid: a race condition could result in the wrong row image being
369     written to the cache. This has been avoided by a trip round the message
370     loop before rendering the row image.
371    
372     7. DBControlGrid: It is strongly recommended not to open the source DataSet for
373     a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
374     known to risk corrupt rendering of row images when the control is first
375     displayed. If necessary use "Application.QueueAsyncCall" to delay opening
376     of the dataset (see DBControlGrid examples) until the Form's Window has been created.
377    
378     8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
379     a TDateEdit control located on an editor panel.
380    
381     9. TIBExtract: brought up-to-date plus many bug fixes.
382    
383     10. DBControlGrid: Removed memory leak when updating rows.
384    
385     11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
386    
387 tony 43 IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
388    
389     1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
390     when target codepage is CP_NONE. This is a workaround for
391     http://bugs.freepascal.org/view.php?id=30622.
392    
393     2. DBLog option removed from TIBStatisticalService - not supported by server
394     since Firebird 1.5.
395    
396     3. ibxscript: An error is no longer generated for "on commit preserve rows" or
397     similar.
398    
399     4. IBCodePage: updated mapping between codepages and character id.
400    
401     5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
402     Firebird. Character sets with a char width of two are not UTF16.
403    
404     6. Strings received from the database are now always transliterated into UTF8
405     regardless of the database character set or connection character set. This
406     is for compatibility with the LCL.
407    
408 tony 45 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
409 tony 41
410     1. IBBlob: Defer reading of blob until read method called. This avoids having to
411     read in an entire blob just to get the size of the blob. General performance
412     improvement when opening datasets containing blobs.
413    
414     2. Clearing a Blob now sets the corresponding field's modified flag.
415    
416     3. IBLookupCombo: When not performing auto-complete, original query sort order
417     is now used.
418    
419     4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
420     determined.
421    
422     5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
423    
424     6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
425     lazarus 1.6.0
426    
427     7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
428     compilation error.
429    
430 tony 39 IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
431    
432     1. No character set specified for connection: when a text blob is retrieved, the
433     character set is determined by looking up the native character set using then
434     Firebird API. Otherwise a text mode blob is assumed to have the same character
435     set as the connection.
436    
437     2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
438     for Login Dialog returing a change to the database path.
439    
440     3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
441     to be changed from that given in the TIBDatabase/TIBServer component and for the
442     entered value to be saved on a project specific basis (design time only).
443    
444     4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
445     column fieldname. If they are the same then it is acts as a look up for the KeyValue
446     Otherwise, it sets the column text to the selected ListField Value.
447    
448     5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
449     column width.
450    
451     6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
452     and a case insensitive search is requested.
453    
454     7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
455     or column ListSource.
456    
457     8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
458     unprepare) when closing and the text has not changed.
459    
460     9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
461     Less likely to cause a cursor re-use error on Windows.
462    
463     10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
464     Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
465    
466     11. TIBTreeView: Guard against nil destination on record changed
467    
468     12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
469     string type with the code page set to reflect the returned field encoding after
470     Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
471     earlier versions.
472    
473     13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
474     will now result in transliteration to the code page specified for the Firebird driver
475     if the assigned string has a different code page. FPC 3.0.0 onwards only.
476    
477     14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
478     is ignored and the lc_ctype value, when the database is opened, is set to align with
479     the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
480     platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
481     3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
482     the GETACP is used to determine the Windows code page.
483    
484     15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
485     name used as the lc_ctype when the database was opened. Only valid while the
486     Database is connected.
487    
488     16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
489     id that corresponds to the DefaultCharSetName.
490    
491 tony 37 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
492    
493     1. Unix: If Firebird Embedded Server shared object is loaded and a local database
494     path is given and database attach fails due to access permission issues on the
495     temp directory or security database, then the attach is retried with "localhost:"
496     prefixing the databasename. This should avoid problems when the database has to
497     be accessed by a local (e.g. classic) server and libfbembed is used.
498    
499     2. Windows: revised search order for Firebird DLL:
500     i. The Firebird Embedded Server in the application Directory.
501     ii. If the FIREBIRD environment variable is set then the directory this
502     points to is searched for the FB Client DLL and then then underlying
503     "bin" directory.
504     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
505     is used to locate the Firebird installation directory and the underlying
506     "bin" directory is searched for the FB Client DLL.
507     iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
508     are searched for the FB Client DLL.
509     v. The PATH Environment variable is used to search for the FB Client DLL.
510     vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
511    
512     3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
513     See doc/readme.scriptengine and example applications.
514    
515     4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
516     simplify the use of the embedded firebird server on both Linux and Windows platforms.
517     See dpc/readme.localdatabase and example applications.
518    
519     5. IBDynamicGrid: Reordering on column header click should now also work for
520     dynamic columns.
521    
522     6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
523     between incrementing/decrementing the lock count and signalling the event.
524    
525 tony 35 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
526    
527 tony 37 1.3.2 was never formally released and only made available as beta copies.
528    
529 tony 35 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
530    
531     2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
532    
533     3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
534    
535     4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
536     i.e. when it is a calculated field
537    
538     5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
539     This problem was due to a race condition between recalculating row heights and
540     determining which row was selected by the mouse click. The row height calculation
541     is now deferred by an extra trip round the message loop allowing the row to
542     be always calculated on the current grid layout rather than risking it being
543     calculated on the grid layout after the expanded row has been shrunk.
544    
545     6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
546     Windows.
547    
548     7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
549     These properties allow the (Firebird) character set name for the field and the max number of bytes per character
550 tony 37 to be determined at runtime. See doc/readme.charactersets.html.
551 tony 35
552     8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
553 tony 37 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
554 tony 35
555     9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
556     TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
557 tony 37 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
558 tony 35
559     Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
560     from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
561     implies no truncation.
562    
563     10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
564    
565     11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
566     (avoids "Not in Edit Mode" error).
567    
568     12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
569    
570     13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
571     DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
572    
573     14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
574    
575     15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
576    
577     16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
578    
579     17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
580    
581 tony 33 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
582 tony 31
583     1. OnCloseUp Event Handler added to TDBLookupProperties
584    
585     2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
586     problem with row size when exception is called.
587    
588     3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
589    
590     4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
591     in a TCustomComboBox and ignores return key if in a TCustomMemo
592    
593     5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
594     keyed in i.e. when autocomplete not performed
595    
596 tony 33 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
597     console mode applications with all LCL required functions (builtin dialogs and
598     cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
599     not included in your project, IBX should compile and link with a console mode program.
600     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
601     console mode application or the IDE will automatically assume that your
602     application is GUI based. Instead, you should include the ibexpressconsolemode package.
603 tony 31
604     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
605     to use the built in dialogs and cursor management. IBDialogs is
606 tony 33 included by default if "ibexpress" is in your project source's "uses" clause.
607 tony 31 This should be the case for all projects created through the IDE. This is why
608     you do not want to add the ibexpress package to console mode applications. The
609     ibexpressconsolemode package has been created to allow console mode programs
610     to avoid adding LCL dependencies when using IBX, while still having the
611     unit search paths set up correctly.
612    
613 tony 33 Existing users should check to ensure that the "ibexpress" unit is included in
614     each project's source file (*.lpr).
615    
616 tony 31 You may find that in order for the IDE to recognise that ibexpressconsolemode
617     exists, you have to first open the package in the IDE and then close it. This
618     adds it to the most recently accessed packages list. To make it permanently
619     available, add the package name to lazarus' staticpackages.inc file.
620    
621 tony 33 Thanks to Julio Jiménez for suggesting support of console mode.
622 tony 31
623     7. SQL Parser can now accept quoted strings that include new lines
624    
625     8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
626     of text on start of edit. This is particularly useful when tabbing to a
627     column and then inserting text.
628    
629     9. New Examples provided for IB Services and ISQLMonitor.
630    
631     10. Fix error when writing to blob streams that recorded only the last buffer
632     write in the blob stream. In most cases, this did not cause a problem as the
633     IB Blob Stream is written in a single write. However, with the TDBImage, write
634     of a graphic type prefix was lost which caused a problem when the image could
635     not be automatically recognised.
636    
637     11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
638 tony 33 already open" errors due to random numbers used for the cursor name being identical.
639 tony 31
640     12. IBTable: corrected error that could result in an "Index out of bounds" error
641     when opening the table and the Primary Key is the last or only column in the
642     table. Thanks to Rick Hoover for the fix.
643    
644 tony 33 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
645     of "UTF-8", and update list of available database character sets. Existing
646     users should check the current lc_ctype setting in their applications.
647 tony 29
648 tony 33 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
649    
650 tony 29 1. Firebird Services: avoid List Index error when opening a service with an
651     empty Params property.
652    
653     2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
654     Link now set up in Loaded method - avoids occasional failure to apply
655     SQL markup on initial open.
656    
657     3. "Employees" example performance improvements when scrolling.
658    
659     4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
660     TFrame. Force recaching of selected frame to avoid GTK race (results in a
661     random image cached).
662    
663     5. DBControlGrid: Should now react to changes in panel height at run time.
664    
665     6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
666     even when further rows exist.
667    
668     7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
669     always be derived from panel height and setting this property can cause confusion.
670     Note for existing projects: to avoid a missing property error at run time,
671     each form using the DBControlGrid must be opened, updated and saved in the IDE
672     in order to remove the property value from the lfm.
673    
674    
675 tony 33 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
676 tony 27
677     1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
678     call Prepare before setting parameter values.
679    
680     2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
681    
682     3. Code tidyup and more robust handling of dsql information result vector.
683    
684     4. Support for centralised handling of transaction status changes. TIBTransaction
685     has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
686     and "AfterExecQuery". The first three are called after the same event is called
687     for an IBCustomDataSet descendent using the Transaction. The fourth is called
688     after a call to TIBSQL.ExecQuery, again using this transaction. These new events
689     enable monitoring of transaction status changes for a given transaction to be
690     handled in a single place. For example, when a change to the dataset occurs
691     an indicator can be set that shows the user that in order to save changes,
692     the transaction should be committed. Rather than doing this per dataset, this
693     can now be done per transaction.
694    
695     5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
696     the dataset is scrolled. However, any changes to the current row are, by default,
697     discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
698     have a new property "DataSetCloseAction" that adds automatic posting of changes
699     on dataset close. If this property is set to dcDiscardChanges (default) then the
700     behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
701     then IBX will attempt to post any unsaved changes before the dataset is closed
702     (and after the BeforeClose event handler is called). The exception is when the
703     dataset is being closed as a result of a transaction rollback. In this case,
704     no action is taken and any unsaved changes are discarded. This avoids both
705     unnecessary overhead and the risk that a validation error may occur in the Post
706     raising an exception and thereby preventing a rollback.
707    
708     6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
709     In earlier versions, the Display Width was set to the maximum byte width rather than the character
710     width. Display Widths are now corrected by dividing by the max byte width per character.
711     For UTF8 character sets, the byte width is four and hence the Display Width will be
712     the byte width divided by 4. The byte width of each character set is determined
713     dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
714     system table. (see also http://bugs.freepascal.org/view.php?id=27766).
715    
716     7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
717    
718     8. IBLookupComboEditBox: List should now always be restored to full list when the
719     control loses focus. Default Key press default interval reduced to 200ms.
720    
721     9. DBControlGrid: Ensure that selection is changed to newly appended row, even
722     when dataset rows are less than visible rows.
723    
724     10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
725     does not exist or DataSet is empty. More responsive on dataset open. New event
726     OnRestorePosition. Column sort disabled if no header row.
727    
728     11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
729     while dataset state is dsInsert. Avoids posting errors.
730    
731     12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
732     avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
733    
734     13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
735    
736     14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
737     to solve a specific problem. That is when the dataset cursor is moved (e.g. by
738     a grid mouse click and the current row is being edited or inserted. In this case, TDataset
739     always "posts" the current record regardless or whether or not it may be more appropriate
740     to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
741     "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
742     as the first action of the "Post" method and allows the handler to convert the Post
743     into a Cancel if that is the appropriate action on moving to a different row. This is
744     achieved by returning with "CancelPost" argument set to true. Note that an exception could be
745     raised here, but it may still be more appropriate to validate a post and signal
746     a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
747    
748     15. On Unix derived systems, the Firebird library name can now be given as a colon
749     separated list. Each library name on the list is tried in turn, in left to right
750     order with the first found being used as the firebird library. By default, on Linux,
751     the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
752     overidden by the FBLIB environment variable or the OnGetLibraryName function.
753    
754     Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
755     then it will still attempt to access the database via the Firebird Server and will
756     require a username and password. If only the pathname is given, then the username
757     and password should be omitted and the unix file permissions are used to grant
758     access.
759    
760 tony 33 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
761 tony 23
762     1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
763     rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
764     that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
765 tony 27 corresponds to a row of the linked DataSource. Any data aware control on the
766 tony 23 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
767    
768     2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
769 tony 25 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
770 tony 23 takes place during database access. This may be useful when there are performance issues with
771     the change of cursor. Setting the property to false suppresses the change of cursor.
772    
773     3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
774     and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
775     Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
776     making all changes permanent immediately rather than when the transaction is explicitly
777     committed.
778    
779 tony 25 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
780 tony 27 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
781 tony 23
782 tony 33 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
783 tony 25
784     Development version only.
785    
786 tony 33 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
787 tony 21
788     1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
789     This is typically used during an "OnBeforeOpen" event handler to manipulate the
790     "Where" and "Having" clauses to implement user specified filters of arbitrary
791     complexity.
792    
793     2. A new Component Palette entry "Firebird Data Controls" is now available. This has
794     three new data aware controls dependent on IBX and which make use of the SQL Parser.
795     These are:
796    
797     - TIBLookupComboEditBox
798     - TIBDynamicGrid
799     - TIBTreeview
800    
801     TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
802     of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
803     to revise the available list and restrict it to items that are prefixed by the
804 tony 25 typed text (either case sensitive or case insensitive). Autoinsert allows a
805 tony 21 newly typed entry to be added to the list dataset and included in the available
806     list items.
807    
808     TIBDynamicGrid is a TDBGrid descendent that provides for:
809     - automatic resizing of selected columns to fill the available row length
810     - automatic positioning and sizing of a "totals" control, typically at the
811     column footer, on a per column basis.
812     - DataSet resorting on header row click, sorting the dataset by the selected column.
813     A second click on the same header cell reversed the sort order.
814     - Support for a "Panel Editor". That is on clicking the indicator column, the row
815     is automatically expanded and a panel superimposed on it. The panel can have any
816     number of child controls, typically data aware controls with the same datasource
817     as the grid allowing for editing of additional fields and more complex editors.
818     - Reselection of the same row following resorting.
819     - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
820     Its properties are specified on a per column basis and allows for one or more
821     columns to have their values selected from a list provided by a dataset.
822     Autocomplete and autoinsert are also available. The existing picklist editor
823     is unaffected by the extension.
824    
825     TIBTreeView is a data aware TCustomTreeView.
826    
827     3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
828     zero scale will no longer return an error. An Int64 will be returned instead.
829    
830     4. TIBTransaction now has events for Before and After Transaction End and a new function
831     "GetEndAction" allowing the EndAction to be accessed by these event handlers.
832    
833     5. TIBQuery can now handle correctly queries which contain the same keyword parameter
834     repeated multiple times.
835    
836     6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
837     check used to get in the way of using Stored Procedures, and "Update or Insert"
838     statements.
839    
840     7. Insert, Modify and Delete property Editors now support Query Generation from
841     Stored Procedures.
842    
843     8. Three new examples illustrate the use of the new IB Controls
844    
845    
846 tony 33 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
847 tony 19
848     1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
849     setting performance. See "readme.field+param.names in the doc folder.(Thanks to
850     Gabor Boros for reporting this problem and for testing the improvements).
851    
852     2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
853     See readme.field+param.names in the doc folder.
854    
855     3. IBX SQL Editors will now automatically add double quotes around column names when the database
856     dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
857    
858     4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
859    
860     5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
861     actions.
862    
863     6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
864     thanks to Yuriy Kopnin for pointing this out).
865    
866     7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
867    
868     8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
869     for both fields and parameter setting.
870    
871     9. Changes to the Select SQL in an IBCustomDataset descendent should now be
872     visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
873    
874     10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
875     when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
876    
877     11. TIBTable now has a property editor for "MasterFields"
878    
879     12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
880     GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
881    
882     13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
883     of settings is unrecognised. Selecting this radio button has no effect on the settings.
884    
885    
886 tony 17 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
887    
888     1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
889    
890 tony 15 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
891    
892     1. In a TIBCustomDataset descendent, a generator now only sets the value when
893     it is null. This allows for alternative user defined setting of the generator
894    
895     Many thanks to Julio Jiménez for this fix
896    
897     2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
898     and suggests that the user may have forgotten to install it.
899    
900 tony 13 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
901    
902     1. Conditional compilation used to limit registration of TIntegerField to
903     Lazarus versions less than 1.1
904    
905     2. When a database connection is created, character set is now by default set
906     to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
907     1250 to 1254.
908    
909    
910 tony 11 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
911    
912     1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
913    
914    
915 tony 9 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
916 tony 7
917     1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
918     Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
919    
920     2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
921     package is changed to do this (which it should do).
922    
923     IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
924    
925     1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
926    
927     2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
928    
929     3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
930    
931     4. Property editors should now correctly resize.
932    
933     5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
934     (restored original functionality)
935    
936     6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
937     library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.