--- ibx/trunk/changelog 2013/12/28 19:22:24 17 +++ ibx/trunk/changelog 2016/02/15 14:44:25 37 @@ -1,3 +1,398 @@ +IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000 + +1. Unix: If Firebird Embedded Server shared object is loaded and a local database + path is given and database attach fails due to access permission issues on the + temp directory or security database, then the attach is retried with "localhost:" + prefixing the databasename. This should avoid problems when the database has to + be accessed by a local (e.g. classic) server and libfbembed is used. + +2. Windows: revised search order for Firebird DLL: + i. The Firebird Embedded Server in the application Directory. + ii. If the FIREBIRD environment variable is set then the directory this + points to is searched for the FB Client DLL and then then underlying + "bin" directory. + iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances + is used to locate the Firebird installation directory and the underlying + "bin" directory is searched for the FB Client DLL. + iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x + are searched for the FB Client DLL. + v. The PATH Environment variable is used to search for the FB Client DLL. + vi. Finally the PATH Environment variable is used to search for IBASE.DLL. + +3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine. + See doc/readme.scriptengine and example applications. + +4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to + simplify the use of the embedded firebird server on both Linux and Windows platforms. + See dpc/readme.localdatabase and example applications. + +5. IBDynamicGrid: Reordering on column header click should now also work for + dynamic columns. + +6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition + between incrementing/decrementing the lock count and signalling the event. + +IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000 + +1.3.2 was never formally released and only made available as beta copies. + +1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo + +2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column + +3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early + +4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset + i.e. when it is a calculated field + +5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid. + This problem was due to a race condition between recalculating row heights and + determining which row was selected by the mouse click. The row height calculation + is now deferred by an extra trip round the message loop allowing the row to + be always calculated on the current grid layout rather than risking it being + calculated on the grid layout after the expanded row has been shrunk. + +6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on + Windows. + +7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer; + These properties allow the (Firebird) character set name for the field and the max number of bytes per character + to be determined at runtime. See doc/readme.charactersets.html. + +8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from + TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html. + +9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from + TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of + 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html. + + Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated + from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero + implies no truncation. + +10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active. + +11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state + (avoids "Not in Edit Mode" error). + +12. IBDynamicGrid: Correctly resize grid when one column width plus indicator. + +13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling + DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control. + +14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent. + +15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls + +16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked. + +17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened. + +IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100 + +1. OnCloseUp Event Handler added to TDBLookupProperties + +2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids + problem with row size when exception is called. + +3. IBLookupComboEditBox: Force pending autocomplete on combobox exit. + +4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if + in a TCustomComboBox and ignores return key if in a TCustomMemo + +5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text + keyed in i.e. when autocomplete not performed + +6. Cleanup of "Uses" clauses and add console mode support. IBX should now support + console mode applications with all LCL required functions (builtin dialogs and + cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is + not included in your project, IBX should compile and link with a console mode program. + See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a + console mode application or the IDE will automatically assume that your + application is GUI based. Instead, you should include the ibexpressconsolemode package. + + IMPORTANT NOTE: IBDialogs must be included in GUI applications in order + to use the built in dialogs and cursor management. IBDialogs is + included by default if "ibexpress" is in your project source's "uses" clause. + This should be the case for all projects created through the IDE. This is why + you do not want to add the ibexpress package to console mode applications. The + ibexpressconsolemode package has been created to allow console mode programs + to avoid adding LCL dependencies when using IBX, while still having the + unit search paths set up correctly. + + Existing users should check to ensure that the "ibexpress" unit is included in + each project's source file (*.lpr). + + You may find that in order for the IDE to recognise that ibexpressconsolemode + exists, you have to first open the package in the IDE and then close it. This + adds it to the most recently accessed packages list. To make it permanently + available, add the package name to lazarus' staticpackages.inc file. + + Thanks to Julio Jiménez for suggesting support of console mode. + +7. SQL Parser can now accept quoted strings that include new lines + +8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end + of text on start of edit. This is particularly useful when tabbing to a + column and then inserting text. + +9. New Examples provided for IB Services and ISQLMonitor. + +10. Fix error when writing to blob streams that recorded only the last buffer + write in the blob stream. In most cases, this did not cause a problem as the + IB Blob Stream is written in a single write. However, with the TDBImage, write + of a graphic type prefix was lost which caused a problem when the image could + not be automatically recognised. + +11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor + already open" errors due to random numbers used for the cursor name being identical. + +12. IBTable: corrected error that could result in an "Index out of bounds" error + when opening the table and the Primary Key is the last or only column in the + table. Thanks to Rick Hoover for the fix. + +13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead + of "UTF-8", and update list of available database character sets. Existing + users should check the current lc_ctype setting in their applications. + +IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100 + +1. Firebird Services: avoid List Index error when opening a service with an + empty Params property. + +2. IBControls: Fix problem with new link mechanism introduced in 1.2.3. + Link now set up in Loaded method - avoids occasional failure to apply + SQL markup on initial open. + +3. "Employees" example performance improvements when scrolling. + +4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a + TFrame. Force recaching of selected frame to avoid GTK race (results in a + random image cached). + +5. DBControlGrid: Should now react to changes in panel height at run time. + +6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid + even when further rows exist. + +7. DBControlGrid: DefaultRowHeight is no longer a published property as it should + always be derived from panel height and setting this property can cause confusion. + Note for existing projects: to avoid a missing property error at run time, + each form using the DBControlGrid must be opened, updated and saved in the IDE + in order to remove the property value from the lfm. + + +IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100 + +1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always + call Prepare before setting parameter values. + +2. Error message on ParamByName (all cases) not found now includes name of missing parameter. + +3. Code tidyup and more robust handling of dsql information result vector. + +4. Support for centralised handling of transaction status changes. TIBTransaction + has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost" + and "AfterExecQuery". The first three are called after the same event is called + for an IBCustomDataSet descendent using the Transaction. The fourth is called + after a call to TIBSQL.ExecQuery, again using this transaction. These new events + enable monitoring of transaction status changes for a given transaction to be + handled in a single place. For example, when a change to the dataset occurs + an indicator can be set that shows the user that in order to save changes, + the transaction should be committed. Rather than doing this per dataset, this + can now be done per transaction. + +5. TDataSet.CheckBrowseMode automatically posts changes to the current row when + the dataset is scrolled. However, any changes to the current row are, by default, + discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now + have a new property "DataSetCloseAction" that adds automatic posting of changes + on dataset close. If this property is set to dcDiscardChanges (default) then the + behaviour is unchanged from previous versions. if the value is set to dcSaveChanges + then IBX will attempt to post any unsaved changes before the dataset is closed + (and after the BeforeClose event handler is called). The exception is when the + dataset is being closed as a result of a transaction rollback. In this case, + no action is taken and any unsaved changes are discarded. This avoids both + unnecessary overhead and the risk that a validation error may occur in the Post + raising an exception and thereby preventing a rollback. + +6. String Field sizes and Display Widths should now be correct for multi-byte character sets. + In earlier versions, the Display Width was set to the maximum byte width rather than the character + width. Display Widths are now corrected by dividing by the max byte width per character. + For UTF8 character sets, the byte width is four and hence the Display Width will be + the byte width divided by 4. The byte width of each character set is determined + dynamically when the database connection is estabished from the RDB$CHARACTER_SETS + system table. (see also http://bugs.freepascal.org/view.php?id=27766). + +7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string. + +8. IBLookupComboEditBox: List should now always be restored to full list when the + control loses focus. Default Key press default interval reduced to 200ms. + +9. DBControlGrid: Ensure that selection is changed to newly appended row, even + when dataset rows are less than visible rows. + +10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource + does not exist or DataSet is empty. More responsive on dataset open. New event + OnRestorePosition. Column sort disabled if no header row. + +11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset + while dataset state is dsInsert. Avoids posting errors. + +12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to + avoid conflict with DisableControls/EnableControls with Master/Detail linked tables. + +13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes. + +14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced + to solve a specific problem. That is when the dataset cursor is moved (e.g. by + a grid mouse click and the current row is being edited or inserted. In this case, TDataset + always "posts" the current record regardless or whether or not it may be more appropriate + to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the + "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called + as the first action of the "Post" method and allows the handler to convert the Post + into a Cancel if that is the appropriate action on moving to a different row. This is + achieved by returning with "CancelPost" argument set to true. Note that an exception could be + raised here, but it may still be more appropriate to validate a post and signal + a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml) + +15. On Unix derived systems, the Firebird library name can now be given as a colon + separated list. Each library name on the list is tried in turn, in left to right + order with the first found being used as the firebird library. By default, on Linux, + the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be + overidden by the FBLIB environment variable or the OnGetLibraryName function. + + Note: when using the libfbembed.so, if you prefix the database name with "localhost:" + then it will still attempt to access the database via the Firebird Server and will + require a username and password. If only the pathname is given, then the username + and password should be omitted and the unix file permissions are used to grant + access. + +IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000 + +1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike + rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid + that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row + corresponds to a row of the linked DataSource. Any data aware control on the + replicated (e.g.) TPanel will then appear to have the appropriate value for the row. + +2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase. + When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change + takes place during database access. This may be useful when there are performance issues with + the change of cursor. Setting the property to false suppresses the change of cursor. + +3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery + and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to + Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of + making all changes permanent immediately rather than when the transaction is explicitly + committed. + +4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still + using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature. + +IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000 + +Development version only. + +IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000 + +1. An internal select SQL Parser is now available for TIBCustomDataset descendents. + This is typically used during an "OnBeforeOpen" event handler to manipulate the + "Where" and "Having" clauses to implement user specified filters of arbitrary + complexity. + +2. A new Component Palette entry "Firebird Data Controls" is now available. This has + three new data aware controls dependent on IBX and which make use of the SQL Parser. + These are: + + - TIBLookupComboEditBox + - TIBDynamicGrid + - TIBTreeview + + TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete" + of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation + to revise the available list and restrict it to items that are prefixed by the + typed text (either case sensitive or case insensitive). Autoinsert allows a + newly typed entry to be added to the list dataset and included in the available + list items. + + TIBDynamicGrid is a TDBGrid descendent that provides for: + - automatic resizing of selected columns to fill the available row length + - automatic positioning and sizing of a "totals" control, typically at the + column footer, on a per column basis. + - DataSet resorting on header row click, sorting the dataset by the selected column. + A second click on the same header cell reversed the sort order. + - Support for a "Panel Editor". That is on clicking the indicator column, the row + is automatically expanded and a panel superimposed on it. The panel can have any + number of child controls, typically data aware controls with the same datasource + as the grid allowing for editing of additional fields and more complex editors. + - Reselection of the same row following resorting. + - A new cell editor that provides the same functionality as TIBLookupComboEditBox. + Its properties are specified on a per column basis and allows for one or more + columns to have their values selected from a list provided by a dataset. + Autocomplete and autoinsert are also available. The existing picklist editor + is unaffected by the extension. + + TIBTreeView is a data aware TCustomTreeView. + +3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a + zero scale will no longer return an error. An Int64 will be returned instead. + +4. TIBTransaction now has events for Before and After Transaction End and a new function + "GetEndAction" allowing the EndAction to be accessed by these event handlers. + +5. TIBQuery can now handle correctly queries which contain the same keyword parameter + repeated multiple times. + +6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error + check used to get in the way of using Stored Procedures, and "Update or Insert" + statements. + +7. Insert, Modify and Delete property Editors now support Query Generation from + Stored Procedures. + +8. Three new examples illustrate the use of the new IB Controls + + +IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100 + +1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter + setting performance. See "readme.field+param.names in the doc folder.(Thanks to + Gabor Boros for reporting this problem and for testing the improvements). + +2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case. + See readme.field+param.names in the doc folder. + +3. IBX SQL Editors will now automatically add double quotes around column names when the database + dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word. + +4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc + +5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once" + actions. + +6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with + thanks to Yuriy Kopnin for pointing this out). + +7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet. + +8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types + for both fields and parameter setting. + +9. Changes to the Select SQL in an IBCustomDataset descendent should now be + visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property. + +10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test, + when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true. + +11. TIBTable now has a property editor for "MasterFields" + +12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the + GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters. + +13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination + of settings is unrecognised. Selecting this radio button has no effect on the settings. + + IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000 1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.