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https://github.com/danieleteti/delphimvcframework.git
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136 lines
3.6 KiB
ObjectPascal
136 lines
3.6 KiB
ObjectPascal
// *************************************************************************** }
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//
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// Delphi MVC Framework
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//
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// Copyright (c) 2010-2023 Daniele Teti and the DMVCFramework Team
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//
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// https://github.com/danieleteti/delphimvcframework
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//
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// ***************************************************************************
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// ***************************************************************************
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unit MVCFramework.SQLGenerators.MSSQL;
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interface
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uses
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FireDAC.Phys.MSSQLDef,
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FireDAC.Phys.MSSQL,
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System.Rtti,
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System.Generics.Collections,
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MVCFramework.RQL.Parser,
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MVCFramework.ActiveRecord,
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MVCFramework.Commons;
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type
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TMVCSQLGeneratorMSSQL = class(TMVCSQLGenerator)
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protected
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function GetCompilerClass: TRQLCompilerClass; override;
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public
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function CreateInsertSQL(
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const TableName: string;
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const Map: TFieldsMap;
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const PKFieldName: string;
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const PKOptions: TMVCActiveRecordFieldOptions): string; override;
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end;
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implementation
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uses
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System.SysUtils,
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MVCFramework.RQL.AST2MSSQL;
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function TMVCSQLGeneratorMSSQL.CreateInsertSQL(const TableName: string; const Map: TFieldsMap;
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const PKFieldName: string; const PKOptions: TMVCActiveRecordFieldOptions): string;
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var
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lKeyValue: TPair<TRttiField, TFieldInfo>;
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lSB: TStringBuilder;
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lPKInInsert: Boolean;
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lFieldName: String;
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begin
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lPKInInsert := (not PKFieldName.IsEmpty) and (not(TMVCActiveRecordFieldOption.foAutoGenerated in PKOptions));
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lPKInInsert := lPKInInsert and (not(TMVCActiveRecordFieldOption.foReadOnly in PKOptions));
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lSB := TStringBuilder.Create;
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try
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lSB.Append('INSERT INTO ' + TableName + '(');
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if lPKInInsert then
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begin
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lSB.Append(PKFieldName + ',');
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end;
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{partition}
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for lFieldName in fPartitionInfo.FieldNames do
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begin
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lSB.Append(GetFieldNameForSQL(lFieldName) + ',');
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end;
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{end-partition}
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for lKeyValue in Map do
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begin
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if lKeyValue.Value.Writeable then
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begin
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lSB.Append(lKeyValue.Value.FieldName + ',');
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end;
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end;
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lSB.Remove(lSB.Length - 1, 1);
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lSB.Append(') values (');
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if lPKInInsert then
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begin
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lSB.Append(':' + PKFieldName + ',');
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end;
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{partition}
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for lFieldName in fPartitionInfo.FieldNames do
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begin
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lSB.Append(':' + GetParamNameForSQL(lFieldName) + ',');
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end;
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{end-partition}
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for lKeyValue in Map do
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begin
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if lKeyValue.Value.Writeable then
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begin
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lSB.Append(':' + lKeyValue.Value.FieldName + ',');
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end;
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end;
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lSB.Remove(lSB.Length - 1, 1);
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lSB.Append(')');
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if TMVCActiveRecordFieldOption.foAutoGenerated in PKOptions then
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begin
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lSB.Append(';SELECT SCOPE_IDENTITY() as ' + PKFieldName);
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end;
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Result := lSB.ToString;
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finally
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lSB.Free;
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end;
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end;
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function TMVCSQLGeneratorMSSQL.GetCompilerClass: TRQLCompilerClass;
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begin
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Result := TRQLMSSQLCompiler;
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end;
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initialization
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TMVCSQLGeneratorRegistry.Instance.RegisterSQLGenerator('mssql', TMVCSQLGeneratorMSSQL);
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finalization
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TMVCSQLGeneratorRegistry.Instance.UnRegisterSQLGenerator('mssql');
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end.
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