private SqlFragment HandleFunction(DbFunctionAggregate fa, SqlFragment arg)
{
Debug.Assert(fa.Arguments.Count == 1);
if (fa.Function.NamespaceName != "Edm")
{
throw new NotSupportedException();
}
FunctionFragment fragment = new FunctionFragment();
fragment.Name = fa.Function.Name;
if (fa.Function.Name == "BigCount")
{
fragment.Name = "COUNT";
}
else
{
fragment.Name = fa.Function.Name.ToUpperInvariant();
}
fragment.Distinct = fa.Distinct;
fragment.Argmument = arg;
return(fragment);
//return new CastExpression(aggregate, GetDbType(functionAggregate.ResultType.EdmType));
}
private SqlFragment UserDefinedFunction(DbFunctionExpression e)
{
FunctionFragment f = new FunctionFragment();
f.Name = Metadata.TryGetValueMetadataProperty <string>(e.Function,
"StoreFunctionNameAttribute");
if (String.IsNullOrEmpty(f.Name))
{
f.Name = e.Function.Name;
}
f.Quoted = !Metadata.TryGetValueMetadataProperty <bool>(e.Function, "BuiltInAttribute");
bool isFuncNiladic = Metadata.TryGetValueMetadataProperty <bool>(e.Function, "NiladicFunctionAttribute");
if (isFuncNiladic && e.Arguments.Count > 0)
{
throw new InvalidOperationException("Niladic functions cannot have parameters");
}
ListFragment list = new ListFragment();
string delimiter = "";
foreach (DbExpression arg in e.Arguments)
{
if (delimiter.Length > 0)
{
list.Append(new LiteralFragment(delimiter));
}
list.Append(arg.Accept(callingGenerator));
delimiter = ", ";
}
f.Argmument = list;
return(f);
}
private SqlFragment UserDefinedFunction(DbFunctionExpression e)
{
FunctionFragment f = new FunctionFragment();
f.Name = Metadata.TryGetValueMetadataProperty<string>(e.Function,
"StoreFunctionNameAttribute");
if (String.IsNullOrEmpty(f.Name))
f.Name = e.Function.Name;
f.Quoted = !Metadata.TryGetValueMetadataProperty<bool>(e.Function, "BuiltInAttribute");
bool isFuncNiladic = Metadata.TryGetValueMetadataProperty<bool>(e.Function, "NiladicFunctionAttribute");
if (isFuncNiladic && e.Arguments.Count > 0)
throw new InvalidOperationException("Niladic functions cannot have parameters");
ListFragment list = new ListFragment();
string delimiter = "";
foreach (DbExpression arg in e.Arguments)
{
if (delimiter.Length > 0)
list.Append(new LiteralFragment(delimiter));
list.Append(arg.Accept(callingGenerator));
delimiter = ", ";
}
f.Argmument = list;
return f;
}
private SqlFragment HandleFunction(DbFunctionAggregate fa, SqlFragment arg)
{
Debug.Assert(fa.Arguments.Count == 1);
if (fa.Function.NamespaceName != "Edm")
throw new NotSupportedException();
FunctionFragment fragment = new FunctionFragment();
fragment.Name = fa.Function.Name;
if (fa.Function.Name == "BigCount")
fragment.Name = "COUNT";
else
fragment.Name = fa.Function.Name.ToUpperInvariant();
fragment.Distinct = fa.Distinct;
fragment.Argmument = arg;
return fragment;
//return new CastExpression(aggregate, GetDbType(functionAggregate.ResultType.EdmType));
}