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

Comparing ibx/trunk/runtime/IBBatchMove.pas (file contents):
Revision 31 by tony, Tue Jul 14 15:31:25 2015 UTC vs.
Revision 143 by tony, Fri Feb 23 12:11:21 2018 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	<	{    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, Classes,  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.
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 - 2018                                               }
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, Classes,  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	>	FDestination: TIBTable;
57	>	FSource: TIBCustomDataSet;
58	>	FMode: TBatchMode;
59	>	FAbortOnKeyViol: Boolean;
60	>	FAbortOnProblem: Boolean;
61	>	FTransliterate: Boolean;
62	>	FRecordCount: Longint;
63	>	FMovedCount: Longint;
64	>	FKeyViolCount: Longint;
65	>	FProblemCount: Longint;
66	>	FChangedCount: Longint;
67	>	FMappings: TStrings;
68	>	FKeyViolTableName: TFileName;
69	>	FProblemTableName: TFileName;
70	>	FChangedTableName: TFileName;
71	>	FCommitCount: Integer;
72	>	procedure SetMappings(Value: TStrings);
73	>	procedure SetSource(Value: TIBCustomDataSet);
74	>	procedure InternalExecute (BatchMode: TBatchMode; FieldCount: Word);
75	>	protected
76	>	procedure Notification(AComponent: TComponent;
77	>	Operation: TOperation); override;
78	>	public
79	>	constructor Create(AOwner: TComponent); override;
80	>	destructor Destroy; override;
81	>	procedure Execute;
82	>	public
83	>	property ChangedCount: Longint read FChangedCount;
84	>	property KeyViolCount: Longint read FKeyViolCount;
85	>	property MovedCount: Longint read FMovedCount;
86	>	property ProblemCount: Longint read FProblemCount;
87	>	published
88	>	property AbortOnKeyViol: Boolean read FAbortOnKeyViol write FAbortOnKeyViol
89	>	default True;
90	>	property AbortOnProblem: Boolean read FAbortOnProblem write FAbortOnProblem
91	>	default True;
92	>	property CommitCount: Integer read FCommitCount write FCommitCount default 0;
93	>	property ChangedTableName: TFileName read FChangedTableName write FChangedTableName;
94	>	property Destination: TIBTable read FDestination write FDestination;
95	>	property KeyViolTableName: TFileName read FKeyViolTableName write FKeyViolTableName;
96	>	property Mappings: TStrings read FMappings write SetMappings;
97	>	property Mode: TBatchMode read FMode write FMode default batAppend;
98	>	property ProblemTableName: TFileName read FProblemTableName write FProblemTableName;
99	>	property RecordCount: Longint read FRecordCount write FRecordCount default 0;
100	>	property Source: TIBCustomDataSet read FSource write SetSource;
101	>	property Transliterate: Boolean read FTransliterate write FTransliterate
102	>	default True;
103	>	end;
104	>
105	>	implementation
106	>
107	>	uses FBMessages;
108	>
109	>	{ TIBBatchMove }
110	>
111	>	constructor TIBBatchMove.Create(AOwner: TComponent);
112	>	begin
113	>	inherited Create(AOwner);
114	>	FAbortOnKeyViol := True;
115	>	FAbortOnProblem := True;
116	>	FTransliterate := True;
117	>	FMappings := TStringList.Create;
118	>	end;
119	>
120	>	destructor TIBBatchMove.Destroy;
121	>	begin
122	>	if FMappings <> nil then
123	>	FMappings.Free;
124	>	inherited Destroy;
125	>	end;
126	>
127	>	procedure TIBBatchMove.Execute;
128	>	type
129	>	TFieldMap = array of Word;
130	>	var
131	>	SourceActive, DestinationActive: Boolean;
132	>	BatchMode: TBatchMode;
133	>	I: Integer;
134	>	FieldCount: Word;
135	>	FieldMap: TFieldMap;
136	>	DestName, SourceName: string;
137	>
138	>	procedure GetMappingNames;
139	>	var
140	>	P: Integer;
141	>	Mapping: string;
142	>	begin
143	>	Mapping := FMappings[I];
144	>	P := Pos('=', Mapping); {MBCS OK}
145	>	if P > 0 then
146	>	begin
147	>	DestName := Copy(Mapping, 1, P - 1);
148	>	SourceName := Copy(Mapping, P + 1, 255);
149	>	end
150	>	else begin
151	>	DestName := Mapping;
152	>	SourceName := Mapping;
153	>	end;
154	>	end;
155	>
156	>	begin
157	>	if (Destination = nil) or (Source = nil) or (Destination = Source) then
158	>	IBError(ibxeInvalidBatchMove, [nil]);
159	>	SourceActive := Source.Active;
160	>	DestinationActive := Destination.Active;
161	>	FieldCount := 0;
162	>	FieldMap := nil;
163	>	try
164	>	Source.DisableControls;
165	>	Destination.DisableControls;
166	>	Source.Open;
167	>	Source.CheckBrowseMode;
168	>	Source.UpdateCursorPos;
169	>	BatchMode := FMode;
170	>	if BatchMode = batCopy then
171	>	begin
172	>	Destination.Close;
173	>	if FMappings.Count = 0 then
174	>	Destination.FieldDefs := Source.FieldDefs
175	>	else
176	>	begin
177	>	Destination.FieldDefs.Clear;
178	>	for I := 0 to FMappings.Count - 1 do
179	>	begin
180	>	GetMappingNames;
181	>	with Source.FieldDefs.Find(SourceName) do
182	>	Destination.FieldDefs.Add(DestName, DataType, Size, Required);
183	>	end;
184	>	end;
185	>	Destination.IndexDefs.Clear;
186	>	Destination.CreateTable;
187	>	BatchMode := batAppend;
188	>	end;
189	>	Destination.Open;
190	>	Destination.CheckBrowseMode;
191	>	if FMappings.Count <> 0 then
192	>	begin
193	>	FieldCount := Destination.FieldDefs.Count;
194	>	SetLength(FieldMap, FieldCount);
195	>	for I := 0 to FMappings.Count - 1 do
196	>	begin
197	>	GetMappingNames;
198	>	FieldMap[Destination.FieldDefs.Find(DestName).FieldNo-1] :=
199	>	Source.FieldDefs.Find(SourceName).FieldNo;
200	>	end;
201	>	end;
202	>	if FRecordCount > 0 then
203	>	begin
204	>	Source.UpdateCursorPos;
205	>	FMovedCount := FRecordCount;
206	>	end else
207	>	begin
208	>	FMovedCount := MaxLongint;
209	>	end;
210	>	Source.CursorPosChanged;
211	>	try
212	>	InternalExecute (BatchMode, FieldCount);
213	>	finally
214	>	if DestinationActive then Destination.First;
215	>	end;
216	>	finally
217	>	if not DestinationActive then
218	>	Destination.Close;
219	>	if not SourceActive then
220	>	Source.Close;
221	>	Destination.EnableControls;
222	>	Source.EnableControls;
223	>	end;
224	>	end;
225	>
226	>	procedure TIBBatchMove.Notification(AComponent: TComponent;
227	>	Operation: TOperation);
228	>	begin
229	>	inherited Notification(AComponent, Operation);
230	>	if Operation = opRemove then
231	>	begin
232	>	if Destination = AComponent then
233	>	Destination := nil;
234	>	if Source = AComponent then
235	>	Source := nil;
236	>	end;
237	>	end;
238	>
239	>	procedure TIBBatchMove.SetMappings(Value: TStrings);
240	>	begin
241	>	FMappings.Assign(Value);
242	>	end;
243	>
244	>	procedure TIBBatchMove.SetSource(Value: TIBCustomDataSet);
245	>	begin
246	>	FSource := Value;
247	>	if Value <> nil then
248	>	Value.FreeNotification(Self);
249	>	end;
250	>
251	>
252	>	procedure TIBBatchMove.InternalExecute (BatchMode: TBatchMode; FieldCount: Word);
253	>	begin
254	>
255	>	end;
256	>
257	>	end.

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