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IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100 |
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IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000 |
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1. Unix: If Firebird Embedded Server shared object is loaded and a local database |
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path is given and database attach fails due to access permission issues on the |
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temp directory or security database, then the attach is retried with "localhost:" |
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prefixing the databasename. This should avoid problems when the database has to |
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be accessed by a local (e.g. classic) server and libfbembed is used. |
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2. Windows: revised search order for Firebird DLL: |
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i. The Firebird Embedded Server in the application Directory. |
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ii. If the FIREBIRD environment variable is set then the directory this |
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points to is searched for the FB Client DLL and then then underlying |
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"bin" directory. |
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iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances |
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is used to locate the Firebird installation directory and the underlying |
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"bin" directory is searched for the FB Client DLL. |
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iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x |
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are searched for the FB Client DLL. |
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v. The PATH Environment variable is used to search for the FB Client DLL. |
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vi. Finally the PATH Environment variable is used to search for IBASE.DLL. |
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3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine. |
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See doc/readme.scriptengine and example applications. |
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4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to |
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simplify the use of the embedded firebird server on both Linux and Windows platforms. |
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See dpc/readme.localdatabase and example applications. |
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5. IBDynamicGrid: Reordering on column header click should now also work for |
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dynamic columns. |
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6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition |
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between incrementing/decrementing the lock count and signalling the event. |
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IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000 |
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1.3.2 was never formally released and only made available as beta copies. |
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1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo |
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2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column |
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3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early |
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4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset |
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i.e. when it is a calculated field |
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5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid. |
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This problem was due to a race condition between recalculating row heights and |
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determining which row was selected by the mouse click. The row height calculation |
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is now deferred by an extra trip round the message loop allowing the row to |
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be always calculated on the current grid layout rather than risking it being |
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calculated on the grid layout after the expanded row has been shrunk. |
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6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on |
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Windows. |
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7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer; |
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These properties allow the (Firebird) character set name for the field and the max number of bytes per character |
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to be determined at runtime. See doc/readme.charactersets.html. |
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8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from |
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TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html. |
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9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from |
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TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of |
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1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html. |
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Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated |
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from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero |
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implies no truncation. |
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10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active. |
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11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state |
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(avoids "Not in Edit Mode" error). |
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12. IBDynamicGrid: Correctly resize grid when one column width plus indicator. |
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13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling |
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DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control. |
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14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent. |
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15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls |
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16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked. |
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17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened. |
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IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100 |
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1. OnCloseUp Event Handler added to TDBLookupProperties |
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2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids |
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problem with row size when exception is called. |
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3. IBLookupComboEditBox: Force pending autocomplete on combobox exit. |
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4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if |
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in a TCustomComboBox and ignores return key if in a TCustomMemo |
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5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text |
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keyed in i.e. when autocomplete not performed |
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6. Cleanup of "Uses" clauses and add console mode support. IBX should now support |
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console mode applications with all LCL required functions (builtin dialogs and |
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cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is |
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not included in your project, IBX should compile and link with a console mode program. |
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See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a |
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console mode application or the IDE will automatically assume that your |
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application is GUI based. Instead, you should include the ibexpressconsolemode package. |
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IMPORTANT NOTE: IBDialogs must be included in GUI applications in order |
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to use the built in dialogs and cursor management. IBDialogs is |
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included by default if "ibexpress" is in your project source's "uses" clause. |
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This should be the case for all projects created through the IDE. This is why |
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you do not want to add the ibexpress package to console mode applications. The |
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ibexpressconsolemode package has been created to allow console mode programs |
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to avoid adding LCL dependencies when using IBX, while still having the |
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unit search paths set up correctly. |
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Existing users should check to ensure that the "ibexpress" unit is included in |
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each project's source file (*.lpr). |
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You may find that in order for the IDE to recognise that ibexpressconsolemode |
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exists, you have to first open the package in the IDE and then close it. This |
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adds it to the most recently accessed packages list. To make it permanently |
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available, add the package name to lazarus' staticpackages.inc file. |
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Thanks to Julio Jiménez for suggesting support of console mode. |
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7. SQL Parser can now accept quoted strings that include new lines |
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8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end |
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of text on start of edit. This is particularly useful when tabbing to a |
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column and then inserting text. |
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9. New Examples provided for IB Services and ISQLMonitor. |
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10. Fix error when writing to blob streams that recorded only the last buffer |
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write in the blob stream. In most cases, this did not cause a problem as the |
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IB Blob Stream is written in a single write. However, with the TDBImage, write |
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of a graphic type prefix was lost which caused a problem when the image could |
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not be automatically recognised. |
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11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor |
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already open" errors due to random numbers used for the cursor name being identical. |
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12. IBTable: corrected error that could result in an "Index out of bounds" error |
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when opening the table and the Primary Key is the last or only column in the |
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table. Thanks to Rick Hoover for the fix. |
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13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead |
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of "UTF-8", and update list of available database character sets. Existing |
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users should check the current lc_ctype setting in their applications. |
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IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100 |
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1. Firebird Services: avoid List Index error when opening a service with an |
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empty Params property. |
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2. IBControls: Fix problem with new link mechanism introduced in 1.2.3. |
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Link now set up in Loaded method - avoids occasional failure to apply |
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SQL markup on initial open. |
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3. "Employees" example performance improvements when scrolling. |
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4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a |
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TFrame. Force recaching of selected frame to avoid GTK race (results in a |
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random image cached). |
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5. DBControlGrid: Should now react to changes in panel height at run time. |
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6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid |
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even when further rows exist. |
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7. DBControlGrid: DefaultRowHeight is no longer a published property as it should |
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always be derived from panel height and setting this property can cause confusion. |
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Note for existing projects: to avoid a missing property error at run time, |
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each form using the DBControlGrid must be opened, updated and saved in the IDE |
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in order to remove the property value from the lfm. |
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IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100 |
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1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always |
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call Prepare before setting parameter values. |
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2. Error message on ParamByName (all cases) not found now includes name of missing parameter. |
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3. Code tidyup and more robust handling of dsql information result vector. |
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4. Support for centralised handling of transaction status changes. TIBTransaction |
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has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost" |
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and "AfterExecQuery". The first three are called after the same event is called |
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for an IBCustomDataSet descendent using the Transaction. The fourth is called |
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after a call to TIBSQL.ExecQuery, again using this transaction. These new events |
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enable monitoring of transaction status changes for a given transaction to be |
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handled in a single place. For example, when a change to the dataset occurs |
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an indicator can be set that shows the user that in order to save changes, |
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the transaction should be committed. Rather than doing this per dataset, this |
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can now be done per transaction. |
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5. TDataSet.CheckBrowseMode automatically posts changes to the current row when |
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the dataset is scrolled. However, any changes to the current row are, by default, |
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discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now |
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have a new property "DataSetCloseAction" that adds automatic posting of changes |
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on dataset close. If this property is set to dcDiscardChanges (default) then the |
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behaviour is unchanged from previous versions. if the value is set to dcSaveChanges |
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then IBX will attempt to post any unsaved changes before the dataset is closed |
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(and after the BeforeClose event handler is called). The exception is when the |
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dataset is being closed as a result of a transaction rollback. In this case, |
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no action is taken and any unsaved changes are discarded. This avoids both |
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unnecessary overhead and the risk that a validation error may occur in the Post |
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raising an exception and thereby preventing a rollback. |
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6. String Field sizes and Display Widths should now be correct for multi-byte character sets. |
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In earlier versions, the Display Width was set to the maximum byte width rather than the character |
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width. Display Widths are now corrected by dividing by the max byte width per character. |
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For UTF8 character sets, the byte width is four and hence the Display Width will be |
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the byte width divided by 4. The byte width of each character set is determined |
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dynamically when the database connection is estabished from the RDB$CHARACTER_SETS |
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system table. (see also http://bugs.freepascal.org/view.php?id=27766). |
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7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string. |
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8. IBLookupComboEditBox: List should now always be restored to full list when the |
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control loses focus. Default Key press default interval reduced to 200ms. |
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9. DBControlGrid: Ensure that selection is changed to newly appended row, even |
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when dataset rows are less than visible rows. |
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10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource |
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does not exist or DataSet is empty. More responsive on dataset open. New event |
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OnRestorePosition. Column sort disabled if no header row. |
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11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset |
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while dataset state is dsInsert. Avoids posting errors. |
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12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to |
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avoid conflict with DisableControls/EnableControls with Master/Detail linked tables. |
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13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes. |
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14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced |
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to solve a specific problem. That is when the dataset cursor is moved (e.g. by |
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a grid mouse click and the current row is being edited or inserted. In this case, TDataset |
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always "posts" the current record regardless or whether or not it may be more appropriate |
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to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the |
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"MoveBy" function is implemented by TDataSet. The OnValidatePost event is called |
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as the first action of the "Post" method and allows the handler to convert the Post |
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into a Cancel if that is the appropriate action on moving to a different row. This is |
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achieved by returning with "CancelPost" argument set to true. Note that an exception could be |
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raised here, but it may still be more appropriate to validate a post and signal |
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a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml) |
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15. On Unix derived systems, the Firebird library name can now be given as a colon |
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separated list. Each library name on the list is tried in turn, in left to right |
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order with the first found being used as the firebird library. By default, on Linux, |
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the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be |
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overidden by the FBLIB environment variable or the OnGetLibraryName function. |
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Note: when using the libfbembed.so, if you prefix the database name with "localhost:" |
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then it will still attempt to access the database via the Firebird Server and will |
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require a username and password. If only the pathname is given, then the username |
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and password should be omitted and the unix file permissions are used to grant |
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access. |
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IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000 |
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1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike |
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rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid |
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that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row |
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corresponds to a row of the linked DataSource. Any data aware control on the |
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replicated (e.g.) TPanel will then appear to have the appropriate value for the row. |
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2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase. |
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When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change |
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takes place during database access. This may be useful when there are performance issues with |
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the change of cursor. Setting the property to false suppresses the change of cursor. |
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3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery |
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and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to |
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Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of |
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making all changes permanent immediately rather than when the transaction is explicitly |
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committed. |
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4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still |
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using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature. |
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IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000 |
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Development version only. |
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IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000 |
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1. An internal select SQL Parser is now available for TIBCustomDataset descendents. |
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This is typically used during an "OnBeforeOpen" event handler to manipulate the |
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"Where" and "Having" clauses to implement user specified filters of arbitrary |
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complexity. |
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2. A new Component Palette entry "Firebird Data Controls" is now available. This has |
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three new data aware controls dependent on IBX and which make use of the SQL Parser. |
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These are: |
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- TIBLookupComboEditBox |
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- TIBDynamicGrid |
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- TIBTreeview |
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TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete" |
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of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation |
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to revise the available list and restrict it to items that are prefixed by the |
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typed text (either case sensitive or case insensitive). Autoinsert allows a |
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newly typed entry to be added to the list dataset and included in the available |
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list items. |
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TIBDynamicGrid is a TDBGrid descendent that provides for: |
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- automatic resizing of selected columns to fill the available row length |
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- automatic positioning and sizing of a "totals" control, typically at the |
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column footer, on a per column basis. |
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- DataSet resorting on header row click, sorting the dataset by the selected column. |
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A second click on the same header cell reversed the sort order. |
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- Support for a "Panel Editor". That is on clicking the indicator column, the row |
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is automatically expanded and a panel superimposed on it. The panel can have any |
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number of child controls, typically data aware controls with the same datasource |
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as the grid allowing for editing of additional fields and more complex editors. |
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- Reselection of the same row following resorting. |
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- A new cell editor that provides the same functionality as TIBLookupComboEditBox. |
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Its properties are specified on a per column basis and allows for one or more |
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columns to have their values selected from a list provided by a dataset. |
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Autocomplete and autoinsert are also available. The existing picklist editor |
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is unaffected by the extension. |
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TIBTreeView is a data aware TCustomTreeView. |
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3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a |
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zero scale will no longer return an error. An Int64 will be returned instead. |
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|
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4. TIBTransaction now has events for Before and After Transaction End and a new function |
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> |
"GetEndAction" allowing the EndAction to be accessed by these event handlers. |
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5. TIBQuery can now handle correctly queries which contain the same keyword parameter |
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repeated multiple times. |
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|
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6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error |
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check used to get in the way of using Stored Procedures, and "Update or Insert" |
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statements. |
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|
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7. Insert, Modify and Delete property Editors now support Query Generation from |
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Stored Procedures. |
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|
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8. Three new examples illustrate the use of the new IB Controls |
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IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100 |
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1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter |
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setting performance. See "readme.field+param.names in the doc folder.(Thanks to |
