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Update exp to sql

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sunkaixuan
2022-12-20 20:56:11 +08:00
parent 461f915db1
commit 4fd4b42e74
1 changed files with 13 additions and 0 deletions
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13
Src/Asp.NetCore2/SqlSugar/Utilities/ExpressionBuilderHelper.cs
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@@ -1,4 +1,5 @@
using System; using System;
using System.Collections;
using System.Collections.Generic; using System.Collections.Generic;
using System.Linq; using System.Linq;
using System.Linq.Expressions; using System.Linq.Expressions;
@@ -49,6 +50,18 @@ namespace SqlSugar
return Expression.Equal(left, Expression.Convert(value, left.Type)); return Expression.Equal(left, Expression.Convert(value, left.Type));
} }
} }
public static Expression CreateExpressionLike<ColumnType>(Type entityType,string propertyName,List<ColumnType> list)
{
var parameter = Expression.Parameter(entityType, "p");
MemberExpression memberProperty = Expression.PropertyOrField(parameter, propertyName);
MethodInfo method = typeof(List<>).MakeGenericType(typeof(ColumnType)).GetMethod("Contains");
ConstantExpression constantCollection = Expression.Constant(list);
MethodCallExpression methodCall = Expression.Call(constantCollection, method, memberProperty);
var expression = Expression.Lambda(methodCall, parameter);
return expression;
}
public static Expression<Func<T, object>> CreateNewFields<T>(EntityInfo entity,List<string> propertyNames) public static Expression<Func<T, object>> CreateNewFields<T>(EntityInfo entity,List<string> propertyNames)
{ {
Type sourceType = typeof(T); Type sourceType = typeof(T);