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Revision 156 by tony, Wed Feb 28 11:14:15 2018 UTC vs.
Revision 306 by tony, Fri Jul 17 22:53:33 2020 UTC

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1 < IBX Change Log  version                                                       (2.2-0) Wed, 28 Feb 2018 10:57:45 +0000
1 > FBINTF Change Log  version          (1.1-6 Build 12214) Fri, 17 Jul 2020 23:10:11 +0100
2  
3 < NOTE: THE LOCATIONS OF SOME OF THE UNIT DIRECTORIES HAS CHANGED FROM IBX 2.1. THIS IS TO
4 < AVOID DUPLICATE PPU WARNINGS. PLEASE REMOVE EARLIER VERSIONS OF IBX BEFORE INSTALLING THIS
5 < RELEASE.
3 > 1. GetImplementationVersion now correctly returns '3.0' for Firebird 3 API
4 >   with a Firebrid 3 client library.
5  
6 < NOTE: THE DBADMIN DEMO REQUIRES THAT THE MemDSLaz PACKAGE IS INSTALLED IN THE LAZARUS IDE.
6 > 2. Linux Only: FIREBIRD environment variable is now checked when loading the client library.
7 >    If a client library path is not explicitly provided and the FIREBIRD environment
8 >    variable is set then the directory given by this variable and any 'lib' subdirectory
9 >    are searched for the Firebird client library. Only if none is found, is the default
10 >    client library used.
11  
12 < 1. IBExtract: Identity columns - add additional check for null column for generator name.
12 > 3.  IUtil.FormatStatus now used to format error messages when using new API
13  
14 < 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 <   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.
14 > 4.  Fixed Array SDL: array_desc_scale now correctly encoded as a signed integer.
15  
16 <   Previously, if a dataset's select query included read only (computed by) fields then
17 <   an automatic row refresh was performed after an insert or update query had been processed,
18 <   irrespective of the setting of the "ForcedUpdates" property. This has changed such
19 <   that an automatic refresh is no longer performed if an insert or update query contains
20 <   a returning clause that updates one or more fields on the current row. A full row
21 <   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 <   returning should be significantly more efficient than executing a refresh query.
16 > 5.  SQL_TEXT handling changed. When the value of an SQL_TEXT (i.e. fixed width string) column is
17 >    returned using GetAsString and the string codepage is UTF8, the string is truncated so
18 >    that the byte length corresponds to the number of characters specified for the column.
19 >    SQL_TEXT strings are no longer automatically trimmed to remove all trailing white space. This is
20 >    correct behaviour but may affect some implementations that relied upon automatic
21 >    trimming of trailing white space.
22  
23 <   This behaviour change is intended to be backwards compatible and there should be no need to change
24 <   existing programs, other than to improve performance by using the new capability.
23 > 6.  New IFirebirdAPI Calls:
24 >      function GetClientMajor: integer;
25 >      function GetClientMinor: integer;
26  
29 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.
27  
28 < 4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
39 <   any Computed By or Identity Columns. The IBTables example has been updated to
40 <   illustrate the computation of the employee Full Name on update.
28 > FBINTF Change Log  version          (1.1-5 Build 12044) Fri, 17 Apr 2020 12:30:01 +0100
29  
30 < 5. TIBTable: The GeneratorField property is now published.
30 > 1. ISQLParams.GetHasCaseSensitiveParams added. Returns true if param names are
31 >   case sensitive
32  
33 < 6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
45 <   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.
33 > 2. Single line SQL comments starting with '--' are now recognised by SQL Parser.
34  
35 < 7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
36 <   Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
37 <   Insert..Returning clause.
35 > 3. New API Calls:
36 >        IColumnMetaData.GetStatement
37 >        IColumnMetaData.GetTransaction
38 >        ISQLData.GetStrLength
39 >        IResults.GetStatement
40 >        IAttachment.OpenBlob (using Blob metadata)
41 >        IAttachment.OpenArray (using array metadata)
42  
43 < 8. TIBGenerator: small performance improvement by not preparing query each time
54 <   a new value is generated.
43 > 4. FBMessages: removal of unused messages
44  
45 < 9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
45 > 5. TFBArray.Create (2nd case): ensure that FFirebirdClientAPI is correctly set.
46  
47 < 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.
47 > 6. TIBSQLStatementType: SQLSavePoint added to end of enumeration.
48  
49 < 11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
62 <    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).
49 > FBINTF Change Log  version          (1.1-4 Build 11515)  Fri, 28 Dec 2018 10:04:19 +0000
50  
51 < 12. Property Editors handling of Stored Procedures.
52 <    * 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).
51 > 1. Fix a problem with the SQL parameter parser that failed to recognise parameters
52 >   where the second character of the parameter name is a numeric.
53  
54 < 13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
55 <    can be used to select a package. If non-empty, the stored procedure name is
56 <    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.
54 > 2. New method for IAttachment: procedure getFBVersion(version: TStrings);
55 >   This returns the isc_version connection information as one or more lines.
56 >   This is the same information as returned by isql with the -z option.
57  
58 < 14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
59 <    a "Package Name" drop down box to allow selection of a Firebird 3 Package from
60 <    which a stored procedure can be selected. With no package name selected, non-package
79 <    stored procedures are listed.
58 > 3. If -dFIREBIRD3APIONLY is used as a compiler option then the legacy Firebird API
59 >   is no longer compiled in. Likewise, if -dLEGACYFIREBIRDAPIONLY is used as a
60 >   compiler option then the Firebird 3 API is no longer compiled in.
61  
62 < 15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
82 <    for password on reconnect.
62 > 4. IColumnMetaData: new method.
63  
64 < 16. TIBDatabase: use IAttachment for connection default character set id, code page
65 <    and character set name.
64 >   TIBDateTimeFormats = (dfTimestamp, {SQL TIMESTAMP}
65 >                        dfDateTime,   {SQL DATETIME}
66 >                        dfTime);
67  
68 < 17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
88 <    DB info lookups"
68 >   function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
69  
70 < 18. IBExtract: now supports DDL Triggers and Grants to DDL objects.
70 >   This returns the max. number of characters returned by the "AsString" method
71 >   when the SQL type of the column is respectively TIMESTAMP, DATETIME or TIME.
72  
73 < 19. Add a property Editor for TIBUpdate.RefreshSQL.
73 > 5. Additional argument for IAttachment.PrepareWithNamedParameters -
74 >     CaseSensitiveParams: boolean = false
75  
76 < 20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
77 <    parameters. This stops an exception being raised when the field cannot be
78 <    located in the record buffer.
76 >   If this argument is set to true then SQL parameter names are assumed to be case
77 >   sensitive and must be referenced (using ISQLParams.ByName) using the case
78 >   sensitive name.
79  
80 < 21. Property Editors now automatically include System Tables when opened and when the query table
81 <    is a System Table.
80 > 6. Bug fix: when setting a query parameter, it is now possible, when the parameter
81 >   is of type VarChar or Char to set the parameter to a numeric value (e.g. using
82 >   .AsCurrency) and then subsequently to update the value to a non-numeric string
83 >   using .AsString.
84  
101 22. IBServices: SQRB and SRB buffers are now reset when service query throws an exception.
102    This avoids errors due to a stale SQRB or SRB being used for the next query.
85  
104 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".
86  
87 < 24. IBServices: TIBControlAndQueryService.WriteNextChunk no longer ignores isc_info_svc_timeout.
110 <    This avoids truncated backups when the server returns a timeout (busy) response.
87 > FBINTF Change Log  version                  (1.1-3) Wed, 05 Dec 2018 14:28:10 +0000
88  
89 < 25. TIBDatabase: isc_dpb_page_size now supported as a database parameter when using TIBDatabase.CreateDatabase.
89 > 1. DARWIN only syntax error: fix missing semi-colon in TFBClientAPI.LoadIBLibrary
90  
91 < 26. TIBDatabase: DatabaseName property may now be prefixed by $TEMP$ or $DATADIR$ for local
92 <    databasenames. These are respectively expanded to the local system's temp directory
116 <    (including trailing delimiter) or to a prescribed data directory (including
117 <    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 <    used to improve application portability for Personal Databases.
91 > 2. Restrict IsMultiThread check to Unix only for compatibility with
92 >   https://bugs.freepascal.org/view.php?id=30535
93  
94 < 27. TIBTable: FieldDefs property is no longer published. Due to the use of TIBFieldDef
95 <    this has not worked for a long time and is not useful either. FieldDefs should be
96 <    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.
94 > 3. New SQL Tokeniser added to IBUtils. This is used to pre-process SQL with
95 >   named parameters and is intended to avoid problems with (e.g.) Execute Block
96 >   and processing internal parameters as statement parameters.
97  
98 < 28. TIBDatabaseInfo: new properties/function
99 <     * 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)
98 > 4. New interface IFirebirdLibrary provides access to the underlying firebird DLL
99 >   or shared object. Available via a new member (GetFBLibrary) of IFirebirdAPI.
100  
101 < 29. IBServices classes now provided the decoded release number in the (array) property ServerVersionNo.
101 > 5. New function added to IB.pas
102  
103 < 30. TIBSecurityService now supports display/modification of the User Admin Role (Firebird 2.5 and later).
103 >   function LoadFBLibrary(aLibPathName: string): IFirebirdLibrary
104  
105 < 31. TIBConfigService now has a procedure SetAutoAdmin(Value: boolean) to enable/disable
106 <    the automtic mapping of privileged OS users to the RDB$ADMIN role (Firebird 2.5 and later).
105 >   This allows a Firebird Library to be loaded from an explicit path. use the
106 >   IFirebirdLibrary.GetFirebirdAPI member function to get the Firebird API using
107 >   the library. It is possible to load Firebird libraries from different locations
108 >   simultaneously, each with a distinct IFirebirdAPI.
109  
110 < 32. TIBBackupService: New Option - NoDBTriggers equivalent to -nodbtriggers switch introduced
147 <    in the gbak utility at V.2.1 to prevent database-level and transaction-level triggers from
148 <    firing during backup and restore.
110 > FBINTF Change Log  version               (1.1-2) Mon, 16 Apr 2018 09:30:32 +0100
111  
112 < 33. Both TIBBackupService and TIBRestoreService now support backup/restore statistics options
113 <    for verbose output using the new property "StatisticsRequested".
152 <    see https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-util-gbak.html#rnfb25-util-gbakstats
112 > 1. Firebird.pas: {$OBJECTCHECKS OFF} added to file to avoid runtime error when
113 >   program compiled with -CR command line switch.
114  
115 < 34. TIBRestoreService: now supports new options RestoreMetaDataOnly (Firebird 2.5 and later).
115 > 2. IServiceManager additions (informational):
116 >    function getProtocol: TProtocol;
117 >    function getPortNo: AnsiString;
118  
119 < 35. TIBOnlineValidationService component added to the IBServices and the "Firebird Admin"
120 <    palette. This uses the online validation feature added in Firebird 2.5. The
121 <    services's properties enable inclusion/exclusion of tables and indexes using
122 <    regular expressions. See.
160 <    https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-apiods-api.html#rnfb25-apiods-api-onlinevalidation
119 > 3. IServiceManager improved error handling. Interfaces changed:
120 >    function Start(Request: ISRB; RaiseExceptionOnError: boolean=true): boolean;
121 >    function Query(SQPB: ISQPB; Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
122 >    function Query(Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
123  
124 < 36. IBServices: procedure TIBConfigService.SetNoLinger added to set no linger
125 <    option on a database.
124 > 4. IAttachment addition (informational)
125 >    function GetSecurityDatabase: AnsiString;
126  
127 < 37. TIBCustomService: Assign method implemented to allow copying of service login
128 <    context between service API components. "Detach" method now only detaches
129 <    service when last reference to the service interface detaches. Tidy up of
168 <    code for SetActive and Attach methods including password hiding.
127 > 5. IStatement: performance counters now updated after each Fetch. GetPerfStatistics
128 >   thus now returns accumulated stats for a select statement from opening a cursor
129 >   up to the last fetch.
130  
131 < 38. TIBDatabase: new properties: AuthenticationMethod and RemoteProtocol. Read only
132 <    and used to determine the auth method and protocol used for the connection.
131 > 6. DARWIN: uloadlibrary.inc bug fix. Many thanks to Luigi Naimi for correcting
132 >   the problem.
133  
134 < 39. TIBDatabase: ensure that SQLDialect setting is used when creating a database using
135 <    a Create Database Statement generated by IBX.
134 > 7. Type change: "TPerfCounters = array[TPerfStats] of Int64". Note "Int64"
135 >   replaces deprecated "comp" type.
136  
137 < 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.
137 > 10. Testsuite Test10 updated to include thread synchronisation for event reporting.
138  
139 < 41: TIBLookupComboeditBox: Ensure dataset updated when change selected with the keyboard
181 <    and not just the mouse.
139 > 11. URL Connection Strings: inet4 and inet6 now recognised.
140  
141 < 42. TIBCustomDataset: reopen query if already active when a TIBControlLink is added.
141 > 12. IBUtils: Parse and Make Connect String now recognise URL style loopback syntax.
142  
143 < 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.
143 > 13. IAttachment.CharSetName2CharSetID is now performed case insensitive.
144  
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.
145  
146 < 45. TIBTreeView: performance improvement. When expanding include both expanded node
193 <    and child nodes in dataset.
146 > FBINTF Change Log  version (1.1-1) Tue, 27 Feb 2018 16:51:16 +0000
147  
148 + 1. IBUtils.QuoteIdentifierIfNeeded: Add check for space character.
149  
150 < IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
150 > 2. IAttachment: add two new methods
151 >     function HasDefaultCharSet: boolean;
152 >     function GetDefaultCharSetID: integer;
153  
154 < 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
155 <   changes.
154 >   These return, respectively, true if a connection default character set was
155 >   specified and the character set id of the connection default character set.
156 >   The DefaultCharSetID is cached when the connection is opened and hence does not
157 >   require a database lookup.
158  
159 < 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
202 <   Bug could result in truncated multi-byte character set values.
159 > 3. Avoid exception when a text blob is a stored procedure parameter.
160  
161 < 3. Changes consequential on moving fbintf character set utility functions from
205 <   IFirebirdAPI to IAttachment.
161 > 4. Update test suite to include a test for a stored proc returning a text blob.
162  
163 < 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
163 > 5. IAttachment: add
164 >      function GetRemoteProtocol: AnsiString;
165 >      function GetODSMajorVersion: integer;
166 >      function GetODSMinorVersion: integer;
167 >      function GetAuthenticationMethod: AnsiString;
168  
169 < 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
170 <   results in autocomplete ignoring prefix text.
169 >   These results are cached when the connection is opened and hence do not
170 >   require a database lookup.
171  
172 < 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
173 <   entering a new name into the text box.
172 > 6. IAttachment: add "function GetConnectString: AnsiString;" This returns the
173 >   connect string used to create/connect to the database.
174  
175 < 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
176 <   Firebird rather than recomputing it.
175 > 7. IAttachment: Create Database using SQL statement. The username and password
176 >   are now extracted and used to populate a DPB made available via IAttachment.getDPB.
177 >   It is now possible to use IAttachment disconnect/connect to reconnect to
178 >   a database for which the initial connection was established by a create
179 >   database sql statement. Available in FPC only.
180  
181 < 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.
181 > 8. Update Test 1 to test 5, 6 and 7 above.
182  
183 < 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
183 > 9. IBUtils code tidy up.
184  
185 < 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
186 <    a transaction and always reset the object.
185 > 10. Parameter Block interfaces "find" method. As documented, this should have
186 >   returned a nil interface when the item could not be found. Instead, an empty
187 >   interface item was returned. "Find" now works as documented and will return
188 >   a nil interface if the item cannot be found.
189  
190 < 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
190 > 11. DBInformation: support added for isc_info_active_tran_count and isc_info_creation_date.
191  
192 < 13. TIBXScript: Allow for override of database filename in Create Database statements.
192 > 12. DBInformation: New interfaces: IDIRB and IDIRBItem added to support DB Information
193 >    requests with additional parameters. This is to enable support for fb_info_page_contents
194 >    (return of page contents). Response to fb_info_page_contents returned as
195 >    a string with code page CP_NONE.
196  
197 < 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
198 <    to a gbak format archive.
197 > 13. DBInformation: Support for fb_info_pages_used and fb_info_pages_free added, plus
198 >    test suite updated.
199  
200 < 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
200 > 14. DBInformation: Support for fb_info_crypt_key (Firebird 3.0.3 onwards) added as
201 >    a string type, and fb_info_conn_flags (Firebird 3.0.3 onwards) added as an integer type.
202  
203 < 16. IBLocaldb: Drop database if error creating an empty database.
203 > 15. Service Manager: List of protocols supported expanded to include inet, wnet and xnet.
204 >    An overloaded version of IIFirebirdAPI.GetServiceManager also allows a non
205 >    default connection port to be specified.
206  
207 < 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
239 <    unless selected node not in current dataset.
207 > FBINTF Change Log  version                             (1.1-0) Sun, 07 Jan 2018 15:20:02 +0000
208  
209 < 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
210 <    to TIBCustomService, and IBlocalDB code tidy up.
209 > 1. Fix issues with setting SQL Param values using SetAsString with Numeric types.
210 >   Scale is no longer ignored.
211  
212 < 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
213 <    behaviour due to uninitialised variable.
212 > 2. Fix issues with setting SQL Param values using SetAsString with Date values
213 >   not in locale format but which are recognised by Firebird. Date values that
214 >   cannot be converted to a string using Pascal library are now passed through
215 >   to Firebird as Text Strings.
216  
217 < 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
218 <    integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
217 > 3. Lookup character set name by codepage amended to ensure that CP_UTF8 returns
218 >   UTF8 and not UNICODE_FSS.
219  
220 < 21. IBSQL: When Database changed ensure that all resources are freed.
220 > 4. Charset ID problem. When using Firebird 3, with no default database character set
221 >   and a column has a non-default collation specified, an incorrect character set
222 >   id was being reported that could result in a 'division by zero' error when
223 >   used by IBX. This has now been fixed.
224  
225 < 22. IBCustomDataset: When database changed ensure that queries an unprepared.
225 > 5. Move GetCharsetName, CharSetID2CodePage, CodePage2CharSetID, CharSetName2CharSetID,
226 >   CharSetWidth from IFirebirdAPI to IAttachment. This is a better data model as
227 >   the character sets supported can be updated on a per database basis. That is
228 >   it is possible to add a (Firebird) user defined character set to a database.
229  
230 < 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
231 <    * 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
230 > 6. Add RegisterCharSet to IAttachment. This is used to register a user defined character
231 >   set supported by Firebird with the API.
232  
233 < 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
233 > 7. Add missing isc_info_db_read_only to list of decoded Database Information items
234 >   in FBOutputBlock.pas and update test suite to include this item.
235  
236 < 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).
236 > 8. FB30Client: avoid always using "StartMultiple" when only a single database attachment.
237  
238 < 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
238 > 9. Loading Windows fbclient.dll: when using the FIREBIRD variable to locate the client
239 >   library or finding it by disk location, the PATH environment variable is now also set to
240 >   include the FIREBIRD directory. This is to ensure that the correct dlls in the
241 >   firebird client library dependencies are loaded.
242  
243 < 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
243 > 10. Testsuite: Ensure consistent UTF-8 output on Windows console.
244  
245 < IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
245 > 11. Testsuite: Update Windows script to include FPC 3.0.4 in search path.
246  
247 < 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
272 <   include remote system name.
247 > 12. FB30Statement: Protect call to "Move" and avoid calling with a nil pointer
248  
249 < 2. TIBExtract: No longer include comment header and COMMIT statement for empty
250 <   tables when data included in output.
249 > 13. FB30Statement: A check has been added to ensure that all SQL Parameters
250 >    have been given a value (including NULL). Previously, failing to set the
251 >    value of an SQL Parameter could give rise to unpredictable results or
252 >    an SQLDA error.
253  
254 < 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.
254 > 14. FB30Statement/FB25Statement: Set SQLParam "modified" when string value set.
255  
256 < 4. SQLParser: only call "OnChanging" event handler when value is different.
256 > 15. FBAttachment: Avoid string reference count error when processing an Ansistring
257 >    parameter in an array of const passed to IAttachment.OpenCursor, etc.
258  
259 < 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
259 > 16. FBAttachment: Allow for WideString and UnicodeString parameters in an array
260 >    of const passed to IAttachment.OpenCursor, etc.
261  
285 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.
262  
263 < 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.
263 > FBINTF Change Log  version             (1.0-2) Sat, 04 Mar 2017 14:43:56 +0000
264  
265 < IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
265 > 1. Change syntax to Mode Delphi
266  
267 < 1. TIBEvents: Fix uninitialised variable that could result in lost events.
267 > 2. Change all uses of string type to explicit AnsiString in order to ensure
268 >   compatibility between Delphi and FPC.
269  
270 < 2. TIBExtract: Added support for FB3 "USAGE" privilege.
270 > 3. Various syntax changes to ensure Delphi and FPC compilation including GUIDs
271 >   defined for each interface.
272  
273 < 3. TIBExtract: data formatted as Charset set "octets" is now output using
302 <   hexadecimal notation.
273 > 4. Generics syntax variations for Delphi added
274  
275 < 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
276 <   using a simple XML format.
275 > 5. PChar replaced with PByte expect where an actual string is being referenced,
276 >   where PAnsiChar is used instead.
277  
278 < 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
308 <   grants to these objects.
278 > 6. Review of type definitions in IBExternals to ensure Delphi compatibility
279  
280 < 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
311 <   dependency problems restoring complex databases.
280 > 7. Testsuite updated for Delphi
281  
282 < 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.
282 > FBINTF Change Log  version            (1.0-1) Fri, 24 Feb 2017 12:17:57 +0000
283  
284 < 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
284 > 1. Limit maximum Blob segment read/write to MaxuShort. Avoids data loss with
285 >   large blobs and the FB3 API.
286  
287 < 9. TIBXScript: ISQL compatiable Set statements are now supported:
288 <   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>
287 > 2. Update Event Handling algorithm to avoid looping due to recreation of the
288 >   event block.
289  
290 < 10. IBVersion unit added to hold current IBX Version Number information.
290 > 3. Avoid invalid XSQLDA error when the only parameter is updated to null
291  
292 < 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
293 <    and domain definitions.
292 > 4. Array Handling: fix problem with text arrays with character set none. When the
293 >   DB connection has a default character set (e.g. UTF8), an error is raised by
294 >   Firebird if the space allocated is not enough to allow for transliteration, even
295 >   though it is not required for character set none.
296  
297 < 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
335 <    fully supported.
297 > 5. IBUtils: List of reserved words brought up-to-date
298  
299 < 13. TIBExtract: when a database dump includes data, the generator values are now also set.
299 > 6. Add ISQL style performance statistics collection to IStatement
300  
301 < 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
301 > 7. Add IFirebirdAPI.CreateDatabase variant to allow execution of user provided
302 >   CREATE DATABASE statement.
303  
304 < IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
304 > 8. Update SQL Statement parsing to allow for Array Dimensions. That is so that the ':' in
305 >   an array dimension is not mistaken for a named parameter prefix.
306  
307 < See also doc/IBX4LazarusGuide.pdf for important information on
308 < upgrading to IBX2.
307 > 9. Trim function no longer applied to result of GetAsString for SQL_TEXT
308 >   when Character set is octets. Avoids loss of non printable characters at start of string.
309  
310 < 1. Size property of TIBStringField is now the width in characters of the field
311 <   and not the byte length. This applies only to multi-byte character sets such
312 <   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.
310 > 10. Add function GetPerfStatistics to IStatement. This returns ISQL like performance
311 >    statistics for the last action. Requires use of procedure IStatement.EnableStatistics
312 >    to enable stats gathering.
313  
314 < 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.
314 > 11. API Version information added as constants to IB.pas
315  
316 < 3. ibxscript: should now handle correctly a Case..End statement within a procedure
358 <   block.
316 > 12. BlobMetaData character set id should now be the same as that given by IColumnMetaData.GetCharSetID
317  
318 < 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.
318 > 13. Firebird Character set "NONE" now interpreted as codepage CP_ACP.
319  
320 < 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.
320 > FBINTF Change Log  version                                      (1.0-0) Tue, 06 Dec 2016 10:33:47 +0000
321  
322 < 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.
322 > 1. Initial Release
323  
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 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 IBX Change Log  version  (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
409
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 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 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 IBX Change Log  version           (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
526
527 1.3.2 was never formally released and only made available as beta copies.
528
529 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   to be determined at runtime. See doc/readme.charactersets.html.
551
552 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
553   TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
554
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   1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
558
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 IBX Change Log  version        (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
582
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 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
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     included by default if "ibexpress" is in your project source's "uses" clause.
607     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     Existing users should check to ensure that the "ibexpress" unit is included in
614     each project's source file (*.lpr).
615
616     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         Thanks to Julio Jiménez for suggesting support of console mode.
622
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    already open" errors due to random numbers used for the cursor name being identical.
639
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 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
648 IBX Change Log  version  (1.2-4) Sat, 09 May 2015 12:38:29 +0100
649
650 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 IBX Change Log  version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
676
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 IBX Change Log  version  (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
761
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    corresponds to a row of the linked DataSource. Any data aware control on the
766    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   When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
770   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 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
780   using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
781
782 IBX Change Log  version      (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
783
784 Development version only.
785
786 IBX Change Log  version   (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
787
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   typed text (either case sensitive or case insensitive). Autoinsert allows a
805   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 IBX Change Log  version  (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
847
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 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 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 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 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 IBX Change Log  version    (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
916
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.

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