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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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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 insenstive). Autoinsert allows a |
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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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