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root/public/ibx/trunk/runtime/IBBatchMove.pas

Comparing ibx/trunk/runtime/IBBatchMove.pas (file contents):
Revision 1 by tony, Mon Jul 31 16:43:00 2000 UTC vs.
Revision 17 by tony, Sat Dec 28 19:22:24 2013 UTC

#	Line 1 | Line 1
1	<	{************************************************************************}
2	<	{                                                                        }
3	<	{       Borland Delphi Visual Component Library                          }
4	<	{       InterBase Express core components                                }
5	<	{                                                                        }
6	<	{       Copyright (c) 1998-2000 Inprise Corporation                      }
7	<	{                                                                        }
8	<	{    InterBase Express is based in part on the product                   }
9	<	{    Free IB Components, written by Gregory H. Deatz for                 }
10	<	{    Hoagland, Longo, Moran, Dunst & Doukas Company.                     }
11	<	{    Free IB Components is used under license.                           }
12	<	{                                                                        }
13	<	{    The contents of this file are subject to the InterBase              }
14	<	{    Public License Version 1.0 (the "License"); you may not             }
15	<	{    use this file except in compliance with the License. You            }
16	<	{    may obtain a copy of the License at http://www.Inprise.com/IPL.html }
17	<	{    Software distributed under the License is distributed on            }
18	<	{    an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either              }
19	<	{    express or implied. See the License for the specific language       }
20	<	{    governing rights and limitations under the License.                 }
21	<	{    The Original Code was created by InterBase Software Corporation     }
22	<	{       and its successors.                                              }
23	<	{    Portions created by Inprise Corporation are Copyright (C) Inprise   }
24	<	{       Corporation. All Rights Reserved.                                }
25	<	{    Contributor(s): Jeff Overcash                                       }
26	<	{                                                                        }
27	<	{************************************************************************}
28	<
29	<	unit IBBatchMove;
30	<
31	<	interface
32	<
33	<	uses Windows, SysUtils, Graphics, Classes, Controls, Db, StdVCL,
34	<	IB, IBCustomDataSet, IBDatabase, IBTable;
35	<
36	<	type
37	<	TBatchMode = (batAppend, batUpdate, batAppendUpdate, batDelete, batCopy);
38	<
39	<	{ TBatchMove }
40	<
41	<	TIBBatchMove = class(TComponent)
42	<	private
43	<	FIBLoaded: Boolean;
44	<	FDestination: TIBTable;
45	<	FSource: TIBCustomDataSet;
46	<	FMode: TBatchMode;
47	<	FAbortOnKeyViol: Boolean;
48	<	FAbortOnProblem: Boolean;
49	<	FTransliterate: Boolean;
50	<	FRecordCount: Longint;
51	<	FMovedCount: Longint;
52	<	FKeyViolCount: Longint;
53	<	FProblemCount: Longint;
54	<	FChangedCount: Longint;
55	<	FMappings: TStrings;
56	<	FKeyViolTableName: TFileName;
57	<	FProblemTableName: TFileName;
58	<	FChangedTableName: TFileName;
59	<	FCommitCount: Integer;
60	<	procedure SetMappings(Value: TStrings);
61	<	procedure SetSource(Value: TIBCustomDataSet);
62	<	procedure InternalExecute (BatchMode: TBatchMode; FieldCount: Word);
63	<	protected
64	<	procedure Notification(AComponent: TComponent;
65	<	Operation: TOperation); override;
66	<	public
67	<	constructor Create(AOwner: TComponent); override;
68	<	destructor Destroy; override;
69	<	procedure Execute;
70	<	public
71	<	property ChangedCount: Longint read FChangedCount;
72	<	property KeyViolCount: Longint read FKeyViolCount;
73	<	property MovedCount: Longint read FMovedCount;
74	<	property ProblemCount: Longint read FProblemCount;
75	<	published
76	<	property AbortOnKeyViol: Boolean read FAbortOnKeyViol write FAbortOnKeyViol
77	<	default True;
78	<	property AbortOnProblem: Boolean read FAbortOnProblem write FAbortOnProblem
79	<	default True;
80	<	property CommitCount: Integer read FCommitCount write FCommitCount default 0;
81	<	property ChangedTableName: TFileName read FChangedTableName write FChangedTableName;
82	<	property Destination: TIBTable read FDestination write FDestination;
83	<	property KeyViolTableName: TFileName read FKeyViolTableName write FKeyViolTableName;
84	<	property Mappings: TStrings read FMappings write SetMappings;
85	<	property Mode: TBatchMode read FMode write FMode default batAppend;
86	<	property ProblemTableName: TFileName read FProblemTableName write FProblemTableName;
87	<	property RecordCount: Longint read FRecordCount write FRecordCount default 0;
88	<	property Source: TIBCustomDataSet read FSource write SetSource;
89	<	property Transliterate: Boolean read FTransliterate write FTransliterate
90	<	default True;
91	<	end;
92	<
93	<	implementation
94	<
95	<	uses IBIntf;
96	<
97	<	{ TIBBatchMove }
98	<
99	<	constructor TIBBatchMove.Create(AOwner: TComponent);
100	<	begin
101	<	inherited Create(AOwner);
102	<	FIBLoaded := False;
103	<	CheckIBLoaded;
104	<	FIBLoaded := True;
105	<	FAbortOnKeyViol := True;
106	<	FAbortOnProblem := True;
107	<	FTransliterate := True;
108	<	FMappings := TStringList.Create;
109	<	end;
110	<
111	<	destructor TIBBatchMove.Destroy;
112	<	begin
113	<	if FIBLoaded then
114	<	FMappings.Free;
115	<	inherited Destroy;
116	<	end;
117	<
118	<	procedure TIBBatchMove.Execute;
119	<	type
120	<	TFieldMap = array of Word;
121	<	var
122	<	SourceActive, DestinationActive: Boolean;
123	<	BatchMode: TBatchMode;
124	<	I: Integer;
125	<	FieldCount: Word;
126	<	FieldMap: TFieldMap;
127	<	DestName, SourceName: string;
128	<
129	<	procedure GetMappingNames;
130	<	var
131	<	P: Integer;
132	<	Mapping: string;
133	<	begin
134	<	Mapping := FMappings[I];
135	<	P := Pos('=', Mapping); {MBCS OK}
136	<	if P > 0 then
137	<	begin
138	<	DestName := Copy(Mapping, 1, P - 1);
139	<	SourceName := Copy(Mapping, P + 1, 255);
140	<	end
141	<	else begin
142	<	DestName := Mapping;
143	<	SourceName := Mapping;
144	<	end;
145	<	end;
146	<
147	<	begin
148	<	if (Destination = nil) or (Source = nil) or (Destination = Source) then
149	<	IBError(ibxeInvalidBatchMove, [nil]);
150	<	SourceActive := Source.Active;
151	<	DestinationActive := Destination.Active;
152	<	FieldCount := 0;
153	<	FieldMap := nil;
154	<	try
155	<	Source.DisableControls;
156	<	Destination.DisableControls;
157	<	Source.Open;
158	<	Source.CheckBrowseMode;
159	<	Source.UpdateCursorPos;
160	<	BatchMode := FMode;
161	<	if BatchMode = batCopy then
162	<	begin
163	<	Destination.Close;
164	<	if FMappings.Count = 0 then
165	<	Destination.FieldDefs := Source.FieldDefs
166	<	else
167	<	begin
168	<	Destination.FieldDefs.Clear;
169	<	for I := 0 to FMappings.Count - 1 do
170	<	begin
171	<	GetMappingNames;
172	<	with Source.FieldDefs.Find(SourceName) do
173	<	Destination.FieldDefs.Add(DestName, DataType, Size, Required);
174	<	end;
175	<	end;
176	<	Destination.IndexDefs.Clear;
177	<	Destination.CreateTable;
178	<	BatchMode := batAppend;
179	<	end;
180	<	Destination.Open;
181	<	Destination.CheckBrowseMode;
182	<	if FMappings.Count <> 0 then
183	<	begin
184	<	FieldCount := Destination.FieldDefs.Count;
185	<	SetLength(FieldMap, FieldCount);
186	<	for I := 0 to FMappings.Count - 1 do
187	<	begin
188	<	GetMappingNames;
189	<	FieldMap[Destination.FieldDefs.Find(DestName).FieldNo-1] :=
190	<	Source.FieldDefs.Find(SourceName).FieldNo;
191	<	end;
192	<	end;
193	<	if FRecordCount > 0 then
194	<	begin
195	<	Source.UpdateCursorPos;
196	<	FMovedCount := FRecordCount;
197	<	end else
198	<	begin
199	<	FMovedCount := MaxLongint;
200	<	end;
201	<	Source.CursorPosChanged;
202	<	try
203	<	InternalExecute (BatchMode, FieldCount);
204	<	finally
205	<	if DestinationActive then Destination.First;
206	<	end;
207	<	finally
208	<	if not DestinationActive then
209	<	Destination.Close;
210	<	if not SourceActive then
211	<	Source.Close;
212	<	Destination.EnableControls;
213	<	Source.EnableControls;
214	<	end;
215	<	end;
216	<
217	<	procedure TIBBatchMove.Notification(AComponent: TComponent;
218	<	Operation: TOperation);
219	<	begin
220	<	inherited Notification(AComponent, Operation);
221	<	if Operation = opRemove then
222	<	begin
223	<	if Destination = AComponent then
224	<	Destination := nil;
225	<	if Source = AComponent then
226	<	Source := nil;
227	<	end;
228	<	end;
229	<
230	<	procedure TIBBatchMove.SetMappings(Value: TStrings);
231	<	begin
232	<	FMappings.Assign(Value);
233	<	end;
234	<
235	<	procedure TIBBatchMove.SetSource(Value: TIBCustomDataSet);
236	<	begin
237	<	FSource := Value;
238	<	if Value <> nil then
239	<	Value.FreeNotification(Self);
240	<	end;
241	<
242	<
243	<	procedure TIBBatchMove.InternalExecute (BatchMode: TBatchMode; FieldCount: Word);
244	<	begin
245	<
246	<	end;
247	<
248	<	end.
1	>	{************************************************************************}
2	>	{                                                                        }
3	>	{       Borland Delphi Visual Component Library                          }
4	>	{       InterBase Express core components                                }
5	>	{                                                                        }
6	>	{       Copyright (c) 1998-2000 Inprise Corporation                      }
7	>	{                                                                        }
8	>	{    InterBase Express is based in part on the product                   }
9	>	{    Free IB Components, written by Gregory H. Deatz for                 }
10	>	{    Hoagland, Longo, Moran, Dunst & Doukas Company.                     }
11	>	{    Free IB Components is used under license.                           }
12	>	{                                                                        }
13	>	{    The contents of this file are subject to the InterBase              }
14	>	{    Public License Version 1.0 (the "License"); you may not             }
15	>	{    use this file except in compliance with the License. You            }
16	>	{    may obtain a copy of the License at http://www.Inprise.com/IPL.html }
17	>	{    Software distributed under the License is distributed on            }
18	>	{    an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either              }
19	>	{    express or implied. See the License for the specific language       }
20	>	{    governing rights and limitations under the License.                 }
21	>	{    The Original Code was created by InterBase Software Corporation     }
22	>	{       and its successors.                                              }
23	>	{    Portions created by Inprise Corporation are Copyright (C) Inprise   }
24	>	{       Corporation. All Rights Reserved.                                }
25	>	{    Contributor(s): Jeff Overcash                                       }
26	>	{                                                                        }
27	>	{    IBX For Lazarus (Firebird Express)                                  }
28	>	{    Contributor: Tony Whyman, MWA Software http://www.mwasoftware.co.uk }
29	>	{    Portions created by MWA Software are copyright McCallum Whyman      }
30	>	{    Associates Ltd 2011                                                 }
31	>	{                                                                        }
32	>	{************************************************************************}
33	>
34	>	unit IBBatchMove;
35	>
36	>	{$Mode Delphi}
37	>
38	>	interface
39	>
40	>	uses
41	>	{$IFDEF WINDOWS }
42	>	Windows,
43	>	{$ELSE}
44	>	unix,
45	>	{$ENDIF}
46	>	SysUtils, {Graphics,} Classes, Controls, Db,
47	>	IB, IBCustomDataSet, IBDatabase, IBTable;
48	>
49	>	type
50	>	TBatchMode = (batAppend, batUpdate, batAppendUpdate, batDelete, batCopy);
51	>
52	>	{ TBatchMove }
53	>
54	>	TIBBatchMove = class(TComponent)
55	>	private
56	>	FIBLoaded: Boolean;
57	>	FDestination: TIBTable;
58	>	FSource: TIBCustomDataSet;
59	>	FMode: TBatchMode;
60	>	FAbortOnKeyViol: Boolean;
61	>	FAbortOnProblem: Boolean;
62	>	FTransliterate: Boolean;
63	>	FRecordCount: Longint;
64	>	FMovedCount: Longint;
65	>	FKeyViolCount: Longint;
66	>	FProblemCount: Longint;
67	>	FChangedCount: Longint;
68	>	FMappings: TStrings;
69	>	FKeyViolTableName: TFileName;
70	>	FProblemTableName: TFileName;
71	>	FChangedTableName: TFileName;
72	>	FCommitCount: Integer;
73	>	procedure SetMappings(Value: TStrings);
74	>	procedure SetSource(Value: TIBCustomDataSet);
75	>	procedure InternalExecute (BatchMode: TBatchMode; FieldCount: Word);
76	>	protected
77	>	procedure Notification(AComponent: TComponent;
78	>	Operation: TOperation); override;
79	>	public
80	>	constructor Create(AOwner: TComponent); override;
81	>	destructor Destroy; override;
82	>	procedure Execute;
83	>	public
84	>	property ChangedCount: Longint read FChangedCount;
85	>	property KeyViolCount: Longint read FKeyViolCount;
86	>	property MovedCount: Longint read FMovedCount;
87	>	property ProblemCount: Longint read FProblemCount;
88	>	published
89	>	property AbortOnKeyViol: Boolean read FAbortOnKeyViol write FAbortOnKeyViol
90	>	default True;
91	>	property AbortOnProblem: Boolean read FAbortOnProblem write FAbortOnProblem
92	>	default True;
93	>	property CommitCount: Integer read FCommitCount write FCommitCount default 0;
94	>	property ChangedTableName: TFileName read FChangedTableName write FChangedTableName;
95	>	property Destination: TIBTable read FDestination write FDestination;
96	>	property KeyViolTableName: TFileName read FKeyViolTableName write FKeyViolTableName;
97	>	property Mappings: TStrings read FMappings write SetMappings;
98	>	property Mode: TBatchMode read FMode write FMode default batAppend;
99	>	property ProblemTableName: TFileName read FProblemTableName write FProblemTableName;
100	>	property RecordCount: Longint read FRecordCount write FRecordCount default 0;
101	>	property Source: TIBCustomDataSet read FSource write SetSource;
102	>	property Transliterate: Boolean read FTransliterate write FTransliterate
103	>	default True;
104	>	end;
105	>
106	>	implementation
107	>
108	>	uses IBIntf;
109	>
110	>	{ TIBBatchMove }
111	>
112	>	constructor TIBBatchMove.Create(AOwner: TComponent);
113	>	begin
114	>	inherited Create(AOwner);
115	>	FIBLoaded := False;
116	>	CheckIBLoaded;
117	>	FIBLoaded := True;
118	>	FAbortOnKeyViol := True;
119	>	FAbortOnProblem := True;
120	>	FTransliterate := True;
121	>	FMappings := TStringList.Create;
122	>	end;
123	>
124	>	destructor TIBBatchMove.Destroy;
125	>	begin
126	>	if FIBLoaded then
127	>	FMappings.Free;
128	>	inherited Destroy;
129	>	end;
130	>
131	>	procedure TIBBatchMove.Execute;
132	>	type
133	>	TFieldMap = array of Word;
134	>	var
135	>	SourceActive, DestinationActive: Boolean;
136	>	BatchMode: TBatchMode;
137	>	I: Integer;
138	>	FieldCount: Word;
139	>	FieldMap: TFieldMap;
140	>	DestName, SourceName: string;
141	>
142	>	procedure GetMappingNames;
143	>	var
144	>	P: Integer;
145	>	Mapping: string;
146	>	begin
147	>	Mapping := FMappings[I];
148	>	P := Pos('=', Mapping); {MBCS OK}
149	>	if P > 0 then
150	>	begin
151	>	DestName := Copy(Mapping, 1, P - 1);
152	>	SourceName := Copy(Mapping, P + 1, 255);
153	>	end
154	>	else begin
155	>	DestName := Mapping;
156	>	SourceName := Mapping;
157	>	end;
158	>	end;
159	>
160	>	begin
161	>	if (Destination = nil) or (Source = nil) or (Destination = Source) then
162	>	IBError(ibxeInvalidBatchMove, [nil]);
163	>	SourceActive := Source.Active;
164	>	DestinationActive := Destination.Active;
165	>	FieldCount := 0;
166	>	FieldMap := nil;
167	>	try
168	>	Source.DisableControls;
169	>	Destination.DisableControls;
170	>	Source.Open;
171	>	Source.CheckBrowseMode;
172	>	Source.UpdateCursorPos;
173	>	BatchMode := FMode;
174	>	if BatchMode = batCopy then
175	>	begin
176	>	Destination.Close;
177	>	if FMappings.Count = 0 then
178	>	Destination.FieldDefs := Source.FieldDefs
179	>	else
180	>	begin
181	>	Destination.FieldDefs.Clear;
182	>	for I := 0 to FMappings.Count - 1 do
183	>	begin
184	>	GetMappingNames;
185	>	with Source.FieldDefs.Find(SourceName) do
186	>	Destination.FieldDefs.Add(DestName, DataType, Size, Required);
187	>	end;
188	>	end;
189	>	Destination.IndexDefs.Clear;
190	>	Destination.CreateTable;
191	>	BatchMode := batAppend;
192	>	end;
193	>	Destination.Open;
194	>	Destination.CheckBrowseMode;
195	>	if FMappings.Count <> 0 then
196	>	begin
197	>	FieldCount := Destination.FieldDefs.Count;
198	>	SetLength(FieldMap, FieldCount);
199	>	for I := 0 to FMappings.Count - 1 do
200	>	begin
201	>	GetMappingNames;
202	>	FieldMap[Destination.FieldDefs.Find(DestName).FieldNo-1] :=
203	>	Source.FieldDefs.Find(SourceName).FieldNo;
204	>	end;
205	>	end;
206	>	if FRecordCount > 0 then
207	>	begin
208	>	Source.UpdateCursorPos;
209	>	FMovedCount := FRecordCount;
210	>	end else
211	>	begin
212	>	FMovedCount := MaxLongint;
213	>	end;
214	>	Source.CursorPosChanged;
215	>	try
216	>	InternalExecute (BatchMode, FieldCount);
217	>	finally
218	>	if DestinationActive then Destination.First;
219	>	end;
220	>	finally
221	>	if not DestinationActive then
222	>	Destination.Close;
223	>	if not SourceActive then
224	>	Source.Close;
225	>	Destination.EnableControls;
226	>	Source.EnableControls;
227	>	end;
228	>	end;
229	>
230	>	procedure TIBBatchMove.Notification(AComponent: TComponent;
231	>	Operation: TOperation);
232	>	begin
233	>	inherited Notification(AComponent, Operation);
234	>	if Operation = opRemove then
235	>	begin
236	>	if Destination = AComponent then
237	>	Destination := nil;
238	>	if Source = AComponent then
239	>	Source := nil;
240	>	end;
241	>	end;
242	>
243	>	procedure TIBBatchMove.SetMappings(Value: TStrings);
244	>	begin
245	>	FMappings.Assign(Value);
246	>	end;
247	>
248	>	procedure TIBBatchMove.SetSource(Value: TIBCustomDataSet);
249	>	begin
250	>	FSource := Value;
251	>	if Value <> nil then
252	>	Value.FreeNotification(Self);
253	>	end;
254	>
255	>
256	>	procedure TIBBatchMove.InternalExecute (BatchMode: TBatchMode; FieldCount: Word);
257	>	begin
258	>
259	>	end;
260	>
261	>	end.

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