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Revision 9 by tony, Sun Aug 5 19:00:07 2012 UTC vs.
Revision 33 by tony, Sat Jul 18 12:30:52 2015 UTC

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1 + IBX Change Log  version        (1.3-1) Sat, 18 Jul 2015 13:30:50 +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 add console mode support. IBX should now support
17 +     console mode applications with all LCL required functions (builtin dialogs and
18 +     cursor management) centralised in the  IBDialogs unit. As long as "IBDialogs" is
19 +     not included in your project, IBX should compile and link with a console mode program.
20 +     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
21 +     console mode application or the IDE will automatically assume that your
22 +     application is 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's "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 +     Existing users should check to ensure that the "ibexpress" unit is included in
34 +     each project's source file (*.lpr).
35 +
36 +     You may find that in order for the IDE to recognise that ibexpressconsolemode
37 +     exists, you have to first open the package in the IDE and then close it. This
38 +     adds it to the most recently accessed packages list. To make it permanently
39 +     available, add the package name to lazarus' staticpackages.inc file.
40 +
41 +         Thanks to Julio Jiménez for suggesting support of console mode.
42 +
43 + 7.   SQL Parser can now accept quoted strings that include new lines
44 +
45 + 8.   IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
46 +     of text on start of edit. This is particularly useful when tabbing to a
47 +     column and then inserting text.
48 +
49 + 9.   New Examples provided for IB Services and ISQLMonitor.
50 +
51 + 10. Fix error when writing to blob streams that recorded only the last buffer
52 +    write in the blob stream. In most cases, this did not cause a problem as the
53 +    IB Blob Stream is written in a single write. However, with the TDBImage, write
54 +    of a graphic type prefix was lost which caused a problem when the image could
55 +        not be automatically recognised.
56 +
57 + 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
58 +    already open" errors due to random numbers used for the cursor name being identical.
59 +
60 + 12. IBTable: corrected error that could result in an "Index out of bounds" error
61 +    when opening the table and the Primary Key is the last or only column in the
62 +    table. Thanks to Rick Hoover for the fix.
63 +
64 + 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
65 +    of "UTF-8", and update list of available database character sets. Existing
66 +    users should check the current lc_ctype setting in their applications.
67 +
68 + IBX Change Log  version  (1.2-4) Sat, 09 May 2015 12:38:29 +0100
69 +
70 + 1.  Firebird Services: avoid List Index error when opening a service with an
71 +    empty Params property.
72 +
73 + 2.  IBControls: Fix problem with new link mechanism introduced in 1.2.3.
74 +    Link now set up in Loaded method - avoids occasional failure to apply
75 +    SQL markup on initial open.
76 +
77 + 3.  "Employees" example performance improvements when scrolling.
78 +
79 + 4.  DBControlGrid: Correctly handle edit panel removal when panel is child control of a
80 +    TFrame. Force recaching of selected frame to avoid GTK race (results in a
81 +    random image cached).
82 +
83 + 5.  DBControlGrid: Should now react to changes in panel height at run time.
84 +
85 + 6.  IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid  
86 +    even when further rows exist.
87 +
88 + 7.  DBControlGrid: DefaultRowHeight is no longer a published property as it should
89 +    always be derived from panel height and setting this property can cause confusion.
90 +    Note for existing projects: to avoid a missing property error at run time,
91 +    each form using the DBControlGrid must be opened, updated and saved in the IDE
92 +    in order to remove the property value from the lfm.
93 +
94 +
95 + IBX Change Log  version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
96 +
97 + 1.  TIBStoredProc. Prepare now called by ParamByName to avoid need to always
98 +    call Prepare before setting parameter values.
99 +
100 + 2.  Error message on ParamByName (all cases) not found now includes name of missing parameter.
101 +
102 + 3.  Code tidyup and more robust handling of dsql information result vector.
103 +
104 + 4.  Support for centralised handling of transaction status changes. TIBTransaction
105 +    has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
106 +    and "AfterExecQuery". The first three are called after the same event is called
107 +    for an IBCustomDataSet descendent using the Transaction. The fourth is called
108 +    after a call to TIBSQL.ExecQuery, again using this transaction. These new events
109 +    enable monitoring of transaction status changes for a given transaction to be
110 +    handled in a single place. For example, when a change to the dataset occurs
111 +    an indicator can be set that shows the user that in order to save changes,
112 +    the transaction should be committed.  Rather than doing this per dataset, this
113 +    can now be done per transaction.
114 +
115 + 5.  TDataSet.CheckBrowseMode automatically posts changes to the current row when
116 +    the dataset is scrolled. However, any changes to the current row are, by default,
117 +    discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
118 +    have a new property "DataSetCloseAction" that adds automatic posting of changes
119 +    on dataset close. If this property is set to dcDiscardChanges (default) then the
120 +    behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
121 +    then IBX will attempt to post any unsaved changes before the dataset is closed
122 +    (and after the BeforeClose event handler is called). The exception is when the
123 +    dataset is being closed as a result of a transaction rollback. In this case,
124 +    no action is taken and any unsaved  changes are discarded. This avoids both
125 +    unnecessary overhead and the risk that a validation error may occur in the Post
126 +    raising an exception and thereby preventing a rollback.
127 +
128 + 6.  String Field sizes and Display Widths should now be correct for multi-byte character sets.
129 +    In earlier versions, the Display Width was set to the maximum byte width rather than the character
130 +    width. Display Widths are now corrected by dividing by the max byte width per character.
131 +    For UTF8 character sets, the byte width is four and hence the Display Width will be
132 +    the byte width divided by 4. The byte width of each character set is determined
133 +    dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
134 +    system table. (see also http://bugs.freepascal.org/view.php?id=27766).
135 +
136 + 7.  SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
137 +
138 + 8.  IBLookupComboEditBox: List should now always be restored to full list when the
139 +    control loses focus. Default Key press default interval reduced to 200ms.
140 +
141 + 9.  DBControlGrid: Ensure that selection is changed to newly appended row, even
142 +    when dataset rows are less than visible rows.
143 +
144 + 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
145 +    does not exist or DataSet is empty. More responsive on dataset open. New event
146 +    OnRestorePosition. Column sort disabled if no header row.
147 +
148 + 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
149 +    while dataset state is dsInsert. Avoids posting errors.
150 +
151 + 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
152 +    avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
153 +
154 + 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
155 +
156 + 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
157 +    to solve a specific problem. That is when the dataset cursor is moved (e.g. by
158 +    a grid mouse click and the current row is being edited or inserted. In this case, TDataset
159 +    always "posts" the current record regardless or whether or not it may be more appropriate
160 +    to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
161 +    "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
162 +    as the first action of the "Post" method and allows the handler to convert the Post
163 +    into a Cancel if that is the appropriate action on moving to a different row. This is
164 +    achieved by returning with "CancelPost" argument set to true. Note that an exception could be
165 +    raised here, but it may still be more appropriate to validate a post and signal
166 +    a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
167 +
168 + 15. On Unix derived systems, the Firebird library name can now be given as a colon
169 +    separated list. Each library name on the list is tried in turn, in left to right
170 +    order with the first found being used as the firebird library. By default, on Linux,
171 +    the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
172 +    overidden by the FBLIB environment variable or the OnGetLibraryName function.
173 +
174 +    Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
175 +    then it will still attempt to access the database via the Firebird Server and will
176 +    require a username and password. If only the pathname is given, then the username
177 +    and password should be omitted and the unix file permissions are used to grant
178 +    access.
179 +
180 + IBX Change Log  version  (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
181 +
182 + 1.  A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
183 +    rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
184 +    that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
185 +    corresponds to a row of the linked DataSource. Any data aware control on the
186 +    replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
187 +
188 + 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
189 +   When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
190 +   takes place during database access. This may be useful when there are performance issues with
191 +   the change of cursor. Setting the property to false suppresses the change of cursor.
192 +
193 + 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
194 +   and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
195 +   Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
196 +   making all changes permanent immediately rather than when the transaction is explicitly
197 +   committed.
198 +
199 + 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
200 +   using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
201 +
202 + IBX Change Log  version      (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
203 +
204 + Development version only.
205 +
206 + IBX Change Log  version   (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
207 +
208 + 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
209 +   This is typically used during an "OnBeforeOpen" event handler to manipulate the
210 +   "Where" and "Having" clauses to implement user specified filters of arbitrary
211 +   complexity.
212 +
213 + 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
214 +   three new data aware controls dependent on IBX and which make use of the SQL Parser.
215 +   These are:
216 +
217 +   - TIBLookupComboEditBox
218 +   - TIBDynamicGrid
219 +   - TIBTreeview
220 +
221 +   TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
222 +   of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
223 +   to revise the available list and restrict it to items that are prefixed by the
224 +   typed text (either case sensitive or case insensitive). Autoinsert allows a
225 +   newly typed entry to be added to the list dataset and included in the available
226 +   list items.
227 +
228 +   TIBDynamicGrid is a TDBGrid descendent that provides for:
229 +   - automatic resizing of selected columns to fill the available row length
230 +   - automatic positioning and sizing of a "totals" control, typically at the
231 +     column footer, on a per column basis.
232 +   - DataSet resorting on header row click, sorting the dataset by the selected column.
233 +     A second click on the same header cell reversed the sort order.
234 +   - Support for a "Panel Editor". That is on clicking the indicator column, the row
235 +     is automatically expanded and a panel superimposed on it. The panel can have any
236 +     number of child controls, typically data aware controls with the same datasource
237 +     as the grid allowing for editing of additional fields and more complex editors.
238 +   - Reselection of the same row following resorting.
239 +   - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
240 +     Its properties are specified on a per column basis and allows for one or more
241 +     columns to have their values selected from a list provided by a dataset.
242 +     Autocomplete and autoinsert are also available. The existing picklist editor
243 +     is unaffected by the extension.
244 +
245 +   TIBTreeView is a data aware TCustomTreeView.
246 +
247 + 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
248 +   zero scale will no longer return an error. An Int64 will be returned instead.
249 +
250 + 4. TIBTransaction now has events for Before and After Transaction End and a new function
251 +   "GetEndAction" allowing the EndAction to be accessed by these event handlers.
252 +
253 + 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
254 +   repeated multiple times.
255 +
256 + 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
257 +   check used to get in the way of using Stored Procedures, and "Update or Insert"
258 +   statements.
259 +
260 + 7. Insert, Modify and Delete property Editors now support Query Generation from
261 +   Stored Procedures.
262 +
263 + 8. Three new examples illustrate the use of the new IB Controls
264 +
265 +
266 + IBX Change Log  version  (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
267 +
268 + 1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
269 +   setting performance. See "readme.field+param.names in the doc folder.(Thanks to
270 +   Gabor Boros for reporting this problem and for testing the improvements).
271 +
272 + 2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
273 +   See readme.field+param.names in the doc folder.
274 +
275 + 3. IBX SQL Editors will now automatically add double quotes around column names when the database
276 +   dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
277 +
278 + 4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
279 +
280 + 5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
281 +   actions.
282 +
283 + 6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
284 +   thanks to Yuriy Kopnin for pointing this out).
285 +
286 + 7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
287 +
288 + 8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
289 +   for both fields and parameter setting.
290 +
291 + 9. Changes to the Select SQL in an IBCustomDataset descendent should now be
292 +   visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
293 +
294 + 10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
295 +    when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
296 +
297 + 11. TIBTable now has a property editor for "MasterFields"
298 +
299 + 12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
300 +    GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
301 +
302 + 13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
303 +    of settings is unrecognised. Selecting this radio button has no effect on the settings.
304 +  
305 +
306 + IBX Change Log  version                 (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
307 +
308 + 1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
309 +
310 + IBX Change Log  version          (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
311 +
312 + 1. In a TIBCustomDataset descendent, a generator now only sets the value when
313 +   it is null. This allows for alternative user defined setting of the generator
314 +
315 +   Many thanks to Julio Jiménez for this fix
316 +
317 + 2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
318 +   and suggests that the user may have forgotten to install it.
319 +
320 + IBX Change Log  version         (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
321 +
322 + 1. Conditional compilation used to limit registration of TIntegerField to
323 +   Lazarus versions less than 1.1
324 +
325 + 2. When a database connection is created, character set is now by default set
326 +   to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
327 +   1250 to 1254.
328 +
329 +
330 + IBX Change Log  version     (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
331 +
332 + 1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
333 +
334 +
335   IBX Change Log  version    (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
336  
337   1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0

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