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FbDateTimeNowTodayTranslator.cs
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FbDateTimeNowTodayTranslator.cs
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/*
* The contents of this file are subject to the Initial
* Developer's Public License Version 1.0 (the "License");
* you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
* https://github.com/FirebirdSQL/NETProvider/blob/master/license.txt.
*
* Software distributed under the License is distributed on
* an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either
* express or implied. See the License for the specific
* language governing rights and limitations under the License.
*
* All Rights Reserved.
*/
//$Authors = Jiri Cincura (jiri@cincura.net)
using System;
using System.Reflection;
using FirebirdSql.EntityFrameworkCore.Firebird.Query.Internal;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Diagnostics;
using Microsoft.EntityFrameworkCore.Query;
using Microsoft.EntityFrameworkCore.Query.SqlExpressions;
namespace FirebirdSql.EntityFrameworkCore.Firebird.Query.ExpressionTranslators.Internal
{
public class FbDateTimeNowTodayTranslator : IMemberTranslator
{
readonly FbSqlExpressionFactory _fbSqlExpressionFactory;
public FbDateTimeNowTodayTranslator(FbSqlExpressionFactory fbSqlExpressionFactory)
{
_fbSqlExpressionFactory = fbSqlExpressionFactory;
}
public SqlExpression Translate(SqlExpression instance, MemberInfo member, Type returnType, IDiagnosticsLogger<DbLoggerCategory.Query> logger)
{
if (member.DeclaringType == typeof(DateTime) && member.Name == nameof(DateTime.Now))
{
return _fbSqlExpressionFactory.NiladicFunction("LOCALTIMESTAMP", false, typeof(DateTime));
}
if (member.DeclaringType == typeof(DateTime) && member.Name == nameof(DateTime.Today))
{
return _fbSqlExpressionFactory.NiladicFunction("CURRENT_DATE", false, typeof(DateTime));
}
return null;
}
}
}