1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578
| unit FDUIBFBMemTable;
interface
uses
System.SysUtils, System.Classes, System.Generics.Collections,
Data.DB, uib,
FireDAC.Comp.DataSet, FireDAC.Comp.Client;
type
TPSField = class
private
public
FName : string;
FType : string;
FLength : string;
FCharset: string;
Function GetFieldType: TFieldType;
end;
TFDUIBFBMemTable = class(TFDMemTable)
private
{ Déclarations privées }
FListPSField : TObjectList<TPSField>;
FUIBDatabase: TUIBDataBase;
FUpdateBase: Boolean;
FsqlSelect: string;
FModeConnected: Boolean;
FTableName: string;
FsqlUpdate: string;
FGetBDField: Boolean;
//**************************
Procedure odBeforePost(DataSet: TDataSet);
procedure odBeforeDelete(DataSet: TDataSet);
procedure odAfterOpen(DataSet: TDataSet);
procedure getData(q: Tuibquery);
Procedure ActiveDatas(Sender: TObject);
Procedure ClearDatasField;
function GetIDuib(aType: string; Uibdatabase: Tuibdatabase): Integer;
//**************************
procedure SetUIBDatabase(const Value: TUIBDataBase);
procedure SetUpdateBase(const Value: Boolean);
procedure SetsqlSelect(const Value: string);
procedure SetModeConnected(const Value: Boolean);
procedure SetTableName(const Value: string);
procedure SetsqlUpdate(const Value: string);
procedure SetGetBDField(const Value: Boolean);
//**************************
property UpdateBase: Boolean read FUpdateBase write SetUpdateBase;
protected
{ Déclarations protégées }
public
{ Déclarations publiques }
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
published
{ Déclarations publiées }
property UIBDatabase : TUIBDataBase read FUIBDatabase write SetUIBDatabase;
property sqlSelect : string read FsqlSelect write SetsqlSelect;
property sqlUpdate : string read FsqlUpdate write SetsqlUpdate;
property ModeConnected : Boolean read FModeConnected write SetModeConnected;
Property TableName : string read FTableName write SetTableName;
property GetBDField : Boolean read FGetBDField write SetGetBDField;
end;
procedure Register;
implementation
procedure Register;
begin
RegisterComponents('Pilotage', [TFDUIBFBMemTable]);
end;
{ TFDUIBFBMemTable }
{*
@09/03/2018 AMN
@Methode: TFDUIBFBMemTable.ActiveDatas
@Motif: DataGet
*}
procedure TFDUIBFBMemTable.ActiveDatas(Sender: TObject);
var
t : TUIBTransaction;
q : TUIBQuery;
sTemp : string;
aField: TPSField;
I : Integer;
//*************************
Procedure AddFieldTypes ;
begin
aField:= TPSField.Create;
aField.FName := Trim(q.Fields.ByNameAsString['FIELD_NAME']);
aField.FType := Trim(q.Fields.ByNameAsString['FIELD_TYPE']);
aField.FLength := Trim(q.Fields.ByNameAsString['FIELD_LENGTH']);
aField.FCharset := Trim(q.Fields.ByNameAsString['FIELD_CHARSET']);
FListPSField.Add(aField);
end;
//*************************
begin
try
FieldDefs.Clear;
if UIBDatabase<>nil then
begin
q:=TUIBQuery.Create(nil);
t:=TUIBTransaction.Create(nil);
try
UpdateBase :=False;
t.DataBase:=UIBDatabase;
q.Transaction:=t;
q.SQL.Add( 'SELECT R.RDB$FIELD_NAME AS field_name, '
+'CASE F.RDB$FIELD_TYPE '
+'WHEN 7 THEN ''SMALLINT'' '
+'WHEN 8 THEN ''INTEGER'' '
+'WHEN 9 THEN ''QUAD'' '
+'WHEN 10 THEN ''FLOAT'' '
+'WHEN 11 THEN ''D_FLOAT'' '
+'WHEN 12 THEN ''DATE'' '
+'WHEN 13 THEN ''TIME'' '
+'WHEN 14 THEN ''CHAR'' '
+'WHEN 16 THEN ''INT64'' '
+'WHEN 27 THEN ''DOUBLE'' '
+'WHEN 35 THEN ''TIMESTAMP'' '
+'WHEN 37 THEN ''VARCHAR'' '
+'WHEN 40 THEN ''CSTRING'' '
+'WHEN 261 THEN ''BLOB'' '
+' ELSE ''UNKNOWN'' '
+'END AS field_type,'
+'F.RDB$FIELD_LENGTH AS field_length,'
+'CSET.RDB$CHARACTER_SET_NAME AS field_charset '
+'FROM RDB$RELATION_FIELDS R '
+'LEFT JOIN RDB$FIELDS F ON R.RDB$FIELD_SOURCE = F.RDB$FIELD_NAME '
+'LEFT JOIN RDB$CHARACTER_SETS CSET ON F.RDB$CHARACTER_SET_ID = CSET.RDB$CHARACTER_SET_ID '
+'WHERE R.RDB$RELATION_NAME= :vTable '
+'ORDER BY R.RDB$FIELD_POSITION');
q.Params.ByNameAsString['vTable']:= Self.TableName;
q.Open;
while not q.eof do
begin
AddFieldTypes;
q.Next;
end;
finally
q.Free;
t.Free;
end;
if FListPSField.Count > 0 then
begin
FsqlUpdate :='UPDATE OR INSERT INTO ' + TableName +' (';
for I := 0 to FListPSField.Count-1 do
begin
if FListPSField[I].GetFieldType= ftString
then Self.FieldDefs.Add(FListPSField[I].fName, FListPSField[I].GetFieldType, StrToInt(FListPSField[I].FLength))
else Self.FieldDefs.Add(FListPSField[I].fName, FListPSField[I].GetFieldType) ;
if I<> FListPSField.Count-1
then FsqlUpdate := FsqlUpdate + FListPSField[I].fName + ','
else FsqlUpdate := FsqlUpdate + FListPSField[I].fName;
end;
FsqlUpdate := FsqlUpdate + ') VALUES (';
for I := 0 to FListPSField.Count-1 do
begin
if I<> FListPSField.Count-1
then FsqlUpdate := FsqlUpdate + ':s'+ FListPSField[I].fName + ','
else FsqlUpdate := FsqlUpdate + ':s'+ FListPSField[I].fName;
end;
FsqlUpdate := FsqlUpdate + ') MATCHING(ID) ';
sqlselect :='select * from ' + TableName; //+ ' where ID < 0' ;
CreateDataSet;
end;
end;
Except
On E:Exception do
begin
raise Exception.Create('TFDUIBFBMemTable.SelfActiveDatas erreur: '+ e.Message);
end;
end;
end;
{*
@09/03/2018 AMN
@Methode: TFDUIBFBMemTable.ClearDatasField
@Motif: DataGet
*}
procedure TFDUIBFBMemTable.ClearDatasField;
begin
Self.Active:= False;
FieldDefs.Clear;
FListPSField.Clear;
sqlUpdate:= '';
sqlSelect:= '';
end;
{*
@09/03/2018 AMN
@Methode: TFDUIBFBMemTable.Create
@Motif: DataGet
*}
constructor TFDUIBFBMemTable.Create(AOwner: TComponent);
begin
inherited;
FListPSField := TObjectList<TPSField>.Create;
AfterOpen := odAfterOpen;
BeforePost := odBeforePost;
BeforeDelete := odBeforeDelete;;
end;
{*
@09/03/2018 AMN
@Methode: TFDUIBFBMemTable.Destroy
@Motif: DataGet
*}
destructor TFDUIBFBMemTable.Destroy;
begin
FListPSField.Free;
inherited;
end;
{*
@10/03/2018 AMN
@Methode: TFDUIBFBMemTable.GetIDuib
@Motif: DataGet
*}
function TFDUIBFBMemTable.GetIDuib(aType: string; Uibdatabase: Tuibdatabase): Integer;
var
q : TUIBQuery;
t : TUIBTransaction;
begin
try
q:=TUIBQuery.Create(nil);
t:=TUIBTransaction.Create(nil);
q.Transaction:=t;
t.DataBase:=Uibdatabase;
try
with q do
begin
SQL.Add('SELECT GEN_ID (GEN_'+aType+'_ID, 1) from rdb$database');
Open;
Result:=q.Fields.AsInteger[0];
end;
finally
FreeAndNil(q);
FreeAndNil(t);
end;
Except
on E:Exception do
begin
raise Exception.Create('TFDUIBFBMemTable.GetIDuib: '+ e.message);
end;
end;
end;
{*
@09/03/2018 AMN
@Methode: TFDUIBFBMemTable.getData
@Motif: DataGet
*}
procedure TFDUIBFBMemTable.getData(q: Tuibquery);
var
I: Integer;
begin
try
EmptyDataSet;
q.Open;
while not q.eof do
begin
Self.Insert;
for I := 0 to FListPSField.Count-1 do
begin
Self.FieldByName(FListPSField[I].FName).AsVariant:= q.Fields.ByNameAsVariant[FListPSField[I].FName];
end;
Self.Post;
q.Next;
end;
q.Close;
except
on E:Exception do
begin
raise Exception.Create('TFDUIBFBMemTable.getData: '+ e.Message);
end;
end;
end;
{*
@09/03/2018 AMN
@Methode: TFDUIBFBMemTable.odAfterOpen
@Motif: DataGet
*}
procedure TFDUIBFBMemTable.odAfterOpen(DataSet: TDataSet);
var
t: TUIBTransaction;
q: TUIBQuery;
begin
inherited;
try
if UIBDatabase<>nil then
begin
q:=TUIBQuery.Create(nil);
t:=TUIBTransaction.Create(nil);
try
UpdateBase :=False;
t.DataBase:=UIBDatabase;
q.Transaction:=t;
with q do
begin
SQL.Clear;
q.SQL.Add(sqlSelect);
q.FetchBlobs:=True;
if SQL.Text='' then
else
getData(q);
if not ModeConnected then UIBDatabase.Connected:=False;
end;
finally
t.Free;
q.Free;
UpdateBase:=True;
end;
end;
except
on E:Exception do
begin
raise Exception.Create('TFDUIBFBMemTable.obAfterOpen: '+ e.Message);
end;
end;
end;
{*
@09/03/2018 AMN
@Methode: TFDUIBFBMemTable.odBeforeDelete
@Motif: DataGet
*}
procedure TFDUIBFBMemTable.odBeforeDelete(DataSet: TDataSet);
var
t: TUIBTransaction;
q: TUIBQuery;
begin
inherited;
try
if UpdateBase=true then
begin
if UIBDatabase<>nil then
begin
q:=TUIBQuery.Create(nil);
t:=TUIBTransaction.Create(nil);
try
UpdateBase :=False;
t.DataBase:=UIBDatabase;
q.Transaction:=t;
with q do
begin
SQL.Clear;
SQL.Add('DELETE FROM ' + TableName + ' WHERE ID = :sID');
Params.ByNameAsInteger['sID']:=FieldByName('ID').AsInteger ;
q.Open;
if not(ModeConnected) then UIBDatabase.Connected:=False;
end;
finally
t.Free;
q.Free;
UpdateBase:=True;
end;
end;
end;
except
On e:Exception do
raise Exception.Create('TFDUIBFBMemTable.odBeforeDelete: '+e.Message);
end;
end;
{*
@09/03/2018 AMN
@Methode: TFDUIBFBMemTable.odBeforePost
@Motif: DataGet
*}
procedure TFDUIBFBMemTable.odBeforePost(DataSet: TDataSet);
var
t: TUIBTransaction;
q: TUIBQuery;
I: Integer;
begin
inherited;
try
if UpdateBase=true then
begin
if UIBDatabase<>nil then
begin
q:=TUIBQuery.Create(nil);
t:=TUIBTransaction.Create(nil);
try
UpdateBase :=False;
t.DataBase:=UIBDatabase;
q.Transaction:=t;
if (FieldByName('ID').IsNull)or(FieldByName('ID').AsInteger<1) then
FieldByName('ID').AsInteger:=GetIDuib(TableName, UIBDatabase);
q.SQL.Clear;
q.SQL.Add(sqlUpdate) ;
for I := 0 to FListPSField.Count-1 do
begin
q.Params.ByNameAsVariant['s'+ FListPSField[I].FName]:=FieldByName(FListPSField[I].FName).Value;
end;
q.Open;
if not(ModeConnected) then UIBDatabase.Connected:=False;
finally
t.Free;
q.Free;
UpdateBase:=True;
end;
end;
end;
except
On E:Exception do
begin
raise Exception.Create('TFDUIBFBMemTable.OdBeforePost: '+e.Message);
end;
end;
end;
{*
@09/03/2018 AMN
@Methode: TFDUIBFBMemTable.SetGetBDField
@Motif: DataGet
*}
procedure TFDUIBFBMemTable.SetGetBDField(const Value: Boolean);
begin
if FGetBDField= False
then ActiveDatas(nil)
else ClearDatasField;
FGetBDField := Value;
end;
{*
@09/03/2018 AMN
@Methode: TFDUIBFBMemTable.SetModeConnected
@Motif: DataGet
*}
procedure TFDUIBFBMemTable.SetModeConnected(const Value: Boolean);
begin
FModeConnected := Value;
end;
{*
@09/03/2018 AMN
@Methode: TFDUIBFBMemTable.SetsqlSelect
@Motif: DataGet
*}
procedure TFDUIBFBMemTable.SetsqlSelect(const Value: string);
begin
FsqlSelect := Value;
end;
{*
@10/03/2018 AMN
@Methode: TFDUIBFBMemTable.SetsqlUpdate
@Motif: DataGet
*}
procedure TFDUIBFBMemTable.SetsqlUpdate(const Value: string);
begin
FsqlUpdate := Value;
end;
{*
@10/03/2018 AMN
@Methode: TFDUIBFBMemTable.SetTableName
@Motif: DataGet
*}
procedure TFDUIBFBMemTable.SetTableName(const Value: string);
begin
FTableName := Value;
end;
{*
@09/03/2018 AMN
@Methode: TFDUIBFBMemTable.SetUIBDatabase
@Motif: DataGet
*}
procedure TFDUIBFBMemTable.SetUIBDatabase(const Value: TUIBDataBase);
begin
FUIBDatabase := Value;
end;
{*
@09/03/2018 AMN
@Methode: TFDUIBFBMemTable.SetUpdateBase
@Motif: DataGet
*}
procedure TFDUIBFBMemTable.SetUpdateBase(const Value: Boolean);
begin
FUpdateBase := Value;
end;
{ TPSField }
{*
@09/03/2018 AMN
@Methode: TPSField.GetFieldType
@Motif: DataGet
*}
function TPSField.GetFieldType: TFieldType;
begin
if Self.FType = 'SMALLINT' then
begin
Result:= ftInteger;
Exit;
end;
if Self.FType = 'INTEGER' then
begin
Result:= ftInteger;
Exit;
end;
if Self.FType = 'INT64' then
begin
Result:= ftInteger;
Exit;
end;
if Self.FType = 'QUAD' then
begin
Result:= ftFloat;
Exit;
end;
if Self.FType = 'FLOAT' then
begin
Result:= ftFloat;
Exit;
end;
if Self.FType = 'D_FLOAT' then
begin
Result:= ftFloat;
Exit;
end;
if Self.FType = 'DOUBLE' then
begin
Result:= ftFloat;
Exit;
end;
if Self.FType = 'DATE' then
begin
Result:= ftDate;
Exit;
end;
if Self.FType = 'TIME' then
begin
Result:= ftTime;
Exit;
end;
if Self.FType = 'TIMESTAMP' then
begin
Result:= ftDateTime;
Exit;
end;
if Self.FType = 'CHAR' then
begin
Result:= ftString;
Exit;
end;
if Self.FType = 'VARCHAR' then
begin
Result:= ftString;
Exit;
end;
if Self.FType = 'CSTRING' then
begin
Result:= ftString;
Exit;
end;
if Self.FType = 'BLOB' then
begin
Result:= ftBlob;
Exit;
end;
if Self.FType = 'UNKNOWN' then
begin
Result:= ftVariant;
Exit;
end;
end;
end. |