private void ResolveDateDiff(ExpressionParameter parameter, bool?isLeft, MemberExpression expression)
{
var binaryExp = expression.Expression as BinaryExpression;
var beginExp = binaryExp.Right;
var endExp = binaryExp.Left;
var dateType = DateType.Day;
var begin = GetNewExpressionValue(beginExp);
var end = GetNewExpressionValue(endExp);
foreach (var item in UtilMethods.EnumToDictionary <DateType>())
{
if (expression.Member.Name.ToLower().Contains(item.Key.ToLower()))
{
dateType = item.Value;
break;
}
}
var result = this.Context.DbMehtods.DateDiff(new MethodCallExpressionModel()
{
Args = new List <MethodCallExpressionArgs>()
{
new MethodCallExpressionArgs()
{
MemberName = dateType,
MemberValue = dateType
},
new MethodCallExpressionArgs()
{
MemberName = begin,
MemberValue = begin
},
new MethodCallExpressionArgs()
{
MemberName = end,
MemberValue = end
}
}
});;
base.AppendMember(parameter, isLeft, result);
}