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Revision 31 by tony, Tue Jul 14 15:31:25 2015 UTC

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1 + IBX Change Log  version      (1.3-0) Tue, 14 Jul 2015 16:32:40 +0100
2 +
3 + 1.   OnCloseUp Event Handler added to TDBLookupProperties
4 +
5 + 2.   IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
6 +     problem with row size when exception is called.
7 +
8 + 3.   IBLookupComboEditBox: Force pending autocomplete on combobox exit.
9 +
10 + 4.   IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
11 +     in a TCustomComboBox and ignores return key if in a TCustomMemo
12 +
13 + 5.   IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
14 +     keyed in i.e. when autocomplete not performed
15 +
16 + 6.   Cleanup of "Uses" clauses and console mode support. IBX should now support
17 +     console mode applications with all LCL required functions centralised in the
18 +     IBDialogs unit. As long as "IBDialogs" is not included in your project, IBX
19 +     should compile and link with a console mode program. See consolemode example
20 +     for further guidence. DO NOT add the ibexpress package to a console mode
21 +     application or the IDE will automatically assume that you application is
22 +     GUI based. Instead, you should include the ibexpressconsolemode package.
23 +
24 +     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
25 +     to use the built in dialogs and cursor management. IBDialogs is
26 +     included by default if "ibexpress" is in your project source "uses" clause.
27 +     This should be the case for all projects created through the IDE. This is why
28 +     you do not want to add the ibexpress package to console mode applications. The
29 +     ibexpressconsolemode package has been created to allow console mode programs
30 +     to avoid adding LCL dependencies when using IBX, while still having the
31 +     unit search paths set up correctly.
32 +
33 +     You may find that in order for the IDE to recognise that ibexpressconsolemode
34 +     exists, you have to first open the package in the IDE and then close it. This
35 +     adds it to the most recently accessed packages list. To make it permanently
36 +     available, add the package name to lazarus' staticpackages.inc file.
37 +
38 +     Under Windows, the TISQLMonitor OnSQL Event Handler may require a new call to
39 +         Application.ProcessMessages in order to display an event journal correctly. See
40 +         example. This was previously called by TISQLMonitor itself but removed to avoid
41 +         a GUI dependency.
42 +
43 +         Thansk to Julio Jiménez for suggesting support of console mode.
44 +
45 + 7.   SQL Parser can now accept quoted strings that include new lines
46 +
47 + 8.   IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
48 +     of text on start of edit. This is particularly useful when tabbing to a
49 +     column and then inserting text.
50 +
51 + 9.   New Examples provided for IB Services and ISQLMonitor.
52 +
53 + 10. Fix error when writing to blob streams that recorded only the last buffer
54 +    write in the blob stream. In most cases, this did not cause a problem as the
55 +    IB Blob Stream is written in a single write. However, with the TDBImage, write
56 +    of a graphic type prefix was lost which caused a problem when the image could
57 +        not be automatically recognised.
58 +
59 + 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
60 +    already open" errors due to random numbers being identical.
61 +
62 + 12. IBTable: corrected error that could result in an "Index out of bounds" error
63 +    when opening the table and the Primary Key is the last or only column in the
64 +    table. Thanks to Rick Hoover for the fix.
65 +
66 + IBX Change Log  version                                                              (1.2-4) Sat, 09 May 2015 12:38:29 +0100
67 +
68 + 1.  Firebird Services: avoid List Index error when opening a service with an
69 +    empty Params property.
70 +
71 + 2.  IBControls: Fix problem with new link mechanism introduced in 1.2.3.
72 +    Link now set up in Loaded method - avoids occasional failure to apply
73 +    SQL markup on initial open.
74 +
75 + 3.  "Employees" example performance improvements when scrolling.
76 +
77 + 4.  DBControlGrid: Correctly handle edit panel removal when panel is child control of a
78 +    TFrame. Force recaching of selected frame to avoid GTK race (results in a
79 +    random image cached).
80 +
81 + 5.  DBControlGrid: Should now react to changes in panel height at run time.
82 +
83 + 6.  IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid  
84 +    even when further rows exist.
85 +
86 + 7.  DBControlGrid: DefaultRowHeight is no longer a published property as it should
87 +    always be derived from panel height and setting this property can cause confusion.
88 +    Note for existing projects: to avoid a missing property error at run time,
89 +    each form using the DBControlGrid must be opened, updated and saved in the IDE
90 +    in order to remove the property value from the lfm.
91 +
92 +
93 + IBX Change Log  version                                                          (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
94 +
95 + 1.  TIBStoredProc. Prepare now called by ParamByName to avoid need to always
96 +    call Prepare before setting parameter values.
97 +
98 + 2.  Error message on ParamByName (all cases) not found now includes name of missing parameter.
99 +
100 + 3.  Code tidyup and more robust handling of dsql information result vector.
101 +
102 + 4.  Support for centralised handling of transaction status changes. TIBTransaction
103 +    has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
104 +    and "AfterExecQuery". The first three are called after the same event is called
105 +    for an IBCustomDataSet descendent using the Transaction. The fourth is called
106 +    after a call to TIBSQL.ExecQuery, again using this transaction. These new events
107 +    enable monitoring of transaction status changes for a given transaction to be
108 +    handled in a single place. For example, when a change to the dataset occurs
109 +    an indicator can be set that shows the user that in order to save changes,
110 +    the transaction should be committed.  Rather than doing this per dataset, this
111 +    can now be done per transaction.
112 +
113 + 5.  TDataSet.CheckBrowseMode automatically posts changes to the current row when
114 +    the dataset is scrolled. However, any changes to the current row are, by default,
115 +    discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
116 +    have a new property "DataSetCloseAction" that adds automatic posting of changes
117 +    on dataset close. If this property is set to dcDiscardChanges (default) then the
118 +    behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
119 +    then IBX will attempt to post any unsaved changes before the dataset is closed
120 +    (and after the BeforeClose event handler is called). The exception is when the
121 +    dataset is being closed as a result of a transaction rollback. In this case,
122 +    no action is taken and any unsaved  changes are discarded. This avoids both
123 +    unnecessary overhead and the risk that a validation error may occur in the Post
124 +    raising an exception and thereby preventing a rollback.
125 +
126 + 6.  String Field sizes and Display Widths should now be correct for multi-byte character sets.
127 +    In earlier versions, the Display Width was set to the maximum byte width rather than the character
128 +    width. Display Widths are now corrected by dividing by the max byte width per character.
129 +    For UTF8 character sets, the byte width is four and hence the Display Width will be
130 +    the byte width divided by 4. The byte width of each character set is determined
131 +    dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
132 +    system table. (see also http://bugs.freepascal.org/view.php?id=27766).
133 +
134 + 7.  SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
135 +
136 + 8.  IBLookupComboEditBox: List should now always be restored to full list when the
137 +    control loses focus. Default Key press default interval reduced to 200ms.
138 +
139 + 9.  DBControlGrid: Ensure that selection is changed to newly appended row, even
140 +    when dataset rows are less than visible rows.
141 +
142 + 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
143 +    does not exist or DataSet is empty. More responsive on dataset open. New event
144 +    OnRestorePosition. Column sort disabled if no header row.
145 +
146 + 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
147 +    while dataset state is dsInsert. Avoids posting errors.
148 +
149 + 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
150 +    avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
151 +
152 + 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
153 +
154 + 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
155 +    to solve a specific problem. That is when the dataset cursor is moved (e.g. by
156 +    a grid mouse click and the current row is being edited or inserted. In this case, TDataset
157 +    always "posts" the current record regardless or whether or not it may be more appropriate
158 +    to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
159 +    "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
160 +    as the first action of the "Post" method and allows the handler to convert the Post
161 +    into a Cancel if that is the appropriate action on moving to a different row. This is
162 +    achieved by returning with "CancelPost" argument set to true. Note that an exception could be
163 +    raised here, but it may still be more appropriate to validate a post and signal
164 +    a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
165 +
166 + 15. On Unix derived systems, the Firebird library name can now be given as a colon
167 +    separated list. Each library name on the list is tried in turn, in left to right
168 +    order with the first found being used as the firebird library. By default, on Linux,
169 +    the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
170 +    overidden by the FBLIB environment variable or the OnGetLibraryName function.
171 +
172 +    Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
173 +    then it will still attempt to access the database via the Firebird Server and will
174 +    require a username and password. If only the pathname is given, then the username
175 +    and password should be omitted and the unix file permissions are used to grant
176 +    access.
177 +
178 + IBX Change Log  version                                                    (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
179 +
180 + 1.  A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
181 +    rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
182 +    that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
183 +    corresponds to a row of the linked DataSource. Any data aware control on the
184 +    replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
185 +
186 + 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
187 +   When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
188 +   takes place during database access. This may be useful when there are performance issues with
189 +   the change of cursor. Setting the property to false suppresses the change of cursor.
190 +
191 + 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
192 +   and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
193 +   Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
194 +   making all changes permanent immediately rather than when the transaction is explicitly
195 +   committed.
196 +
197 + 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
198 +   using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
199 +
200 + IBX Change Log  version                                                   (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
201 +
202 + Development version only.
203 +
204 + IBX Change Log  version                                      (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
205 +
206 + 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
207 +   This is typically used during an "OnBeforeOpen" event handler to manipulate the
208 +   "Where" and "Having" clauses to implement user specified filters of arbitrary
209 +   complexity.
210 +
211 + 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
212 +   three new data aware controls dependent on IBX and which make use of the SQL Parser.
213 +   These are:
214 +
215 +   - TIBLookupComboEditBox
216 +   - TIBDynamicGrid
217 +   - TIBTreeview
218 +
219 +   TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
220 +   of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
221 +   to revise the available list and restrict it to items that are prefixed by the
222 +   typed text (either case sensitive or case insensitive). Autoinsert allows a
223 +   newly typed entry to be added to the list dataset and included in the available
224 +   list items.
225 +
226 +   TIBDynamicGrid is a TDBGrid descendent that provides for:
227 +   - automatic resizing of selected columns to fill the available row length
228 +   - automatic positioning and sizing of a "totals" control, typically at the
229 +     column footer, on a per column basis.
230 +   - DataSet resorting on header row click, sorting the dataset by the selected column.
231 +     A second click on the same header cell reversed the sort order.
232 +   - Support for a "Panel Editor". That is on clicking the indicator column, the row
233 +     is automatically expanded and a panel superimposed on it. The panel can have any
234 +     number of child controls, typically data aware controls with the same datasource
235 +     as the grid allowing for editing of additional fields and more complex editors.
236 +   - Reselection of the same row following resorting.
237 +   - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
238 +     Its properties are specified on a per column basis and allows for one or more
239 +     columns to have their values selected from a list provided by a dataset.
240 +     Autocomplete and autoinsert are also available. The existing picklist editor
241 +     is unaffected by the extension.
242 +
243 +   TIBTreeView is a data aware TCustomTreeView.
244 +
245 + 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
246 +   zero scale will no longer return an error. An Int64 will be returned instead.
247 +
248 + 4. TIBTransaction now has events for Before and After Transaction End and a new function
249 +   "GetEndAction" allowing the EndAction to be accessed by these event handlers.
250 +
251 + 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
252 +   repeated multiple times.
253 +
254 + 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
255 +   check used to get in the way of using Stored Procedures, and "Update or Insert"
256 +   statements.
257 +
258 + 7. Insert, Modify and Delete property Editors now support Query Generation from
259 +   Stored Procedures.
260 +
261 + 8. Three new examples illustrate the use of the new IB Controls
262 +
263 +
264   IBX Change Log  version                      (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
265  
266   1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter

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