A scripted SQL query generation framework with IDE: SQLpp (v1.4)

#include <sqlpp/queries/is_null_predicate.hpp>
#include <sqlpp/queries/select_query_base.hpp>

namespace sqlpp{
namespace queries{


	string_type is_null_predicate::get_where(select_query_base const& query_) const
	{
		if (!m_field)
			return string_type();

		std::ostringstream output;

		output<<m_field->get_sql_name()<<" IS ";
		if (m_not)
			output<<"NOT ";
		output<<"NULL ";

		return output.str();
	};

is_null_predicate_shared_ptr is_null(
	query_field_shared_ptr field_
	)
{
	return is_null_predicate_shared_ptr(
		new is_null_predicate( 
			field_, 
			false 
			)
		);
};

is_null_predicate_shared_ptr is_not_null(
	query_field_shared_ptr field_
	)
{
	return is_null_predicate_shared_ptr(
		new is_null_predicate( 
			field_, 
			true
			)
		);
};

};
};