public override DbExpression Visit(DbMethodCallExpression exp)
{
IMethodHandler methodHandler;
if (MethodHandlers.TryGetValue(exp.Method.Name, out methodHandler))
{
if (methodHandler.CanProcess(exp))
{
methodHandler.Process(exp, this);
return(exp);
}
}
DbFunctionAttribute dbFunction = exp.Method.GetCustomAttribute <DbFunctionAttribute>();
if (dbFunction != null)
{
string schema = dbFunction.Schema;
string functionName = string.IsNullOrEmpty(dbFunction.Name) ? exp.Method.Name : dbFunction.Name;
if (!string.IsNullOrEmpty(schema))
{
this.QuoteName(schema);
this._sqlBuilder.Append(".");
}
this.QuoteName(functionName);
this._sqlBuilder.Append("(");
string c = "";
foreach (DbExpression argument in exp.Arguments)
{
this._sqlBuilder.Append(c);
argument.Accept(this);
c = ",";
}
this._sqlBuilder.Append(")");
return(exp);
}
if (exp.IsEvaluable())
{
DbParameterExpression dbParameter = new DbParameterExpression(exp.Evaluate(), exp.Type);
return(dbParameter.Accept(this));
}
throw UtilExceptions.NotSupportedMethod(exp.Method);
}
public override DbExpression Visit(DbMethodCallExpression exp)
{
IMethodHandler methodHandler;
if (MethodHandlers.TryGetValue(exp.Method.Name, out methodHandler))
{
if (methodHandler.CanProcess(exp))
{
methodHandler.Process(exp, this);
return exp;
}
}
if (exp.IsEvaluable())
{
DbParameterExpression dbParameter = new DbParameterExpression(exp.Evaluate(), exp.Type);
return dbParameter.Accept(this);
}
throw UtilExceptions.NotSupportedMethod(exp.Method);
}