private CreateSqlElements ( |
||
exp | ||
type | MemberType | |
isTure | bool | |
isComparisonOperator | bool | |
return | string |
private string CreateSqlElements(Expression exp, ref MemberType type, bool isTure, bool? isComparisonOperator=null)
{
//主入口
if (exp is LambdaExpression)
{
return LambdaExpression(exp);
}
else if (exp is BinaryExpression)
{
return BinaryExpression(exp);
}
else if (exp is BlockExpression)
{
throw new SqlSugarException(ExpBlockExpression + exp.ToString());
}
else if (exp is ConditionalExpression)
{
throw new SqlSugarException(ExpConditionalExpression + exp.ToString());
}
else if (exp is MethodCallExpression)
{
return MethodCallExpression(exp, ref type, isTure);
}
else if (exp is ConstantExpression)
{
return ConstantExpression(exp, ref type,isComparisonOperator);
}
else if (exp is MemberExpression)
{
return MemberExpression(ref exp, ref type,isComparisonOperator);
}
else if (exp is UnaryExpression)
{
return UnaryExpression(exp, ref type);
}
else if (exp != null && exp.NodeType.IsIn(ExpressionType.New, ExpressionType.NewArrayBounds, ExpressionType.NewArrayInit))
{
throw new SqlSugarException(ExpNew+ exp.ToString());
}
return null;
}
public void ResolveExpression(ResolveExpress re, Expression exp) { ResolveExpress.MemberType type = ResolveExpress.MemberType.None; var expStr = exp.ToString(); var isNotBool = !expStr.Contains("True") && !expStr.Contains("False"); if (isNotBool) { this.SqlWhere = string.Format(" AND {0} ", re.CreateSqlElements(exp, ref type)); } else { var isTrue = Regex.IsMatch(expStr, @"\=\> True$"); var isFalse = Regex.IsMatch(expStr, @"\=\> False$"); if (isFalse) { this.SqlWhere = string.Format(" AND 1<>1 "); } else if (isTrue) { } else { this.SqlWhere = string.Format(" AND {0} ", re.CreateSqlElements(exp, ref type)); } } }