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

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12 Sep 200311 min read 416.1K   5.4K   133  
A helper framework for generation of SQL queries in C++ and Lua
#include <sqlpp/expressions/field_expression.hpp>

namespace sqlpp{
namespace expressions{

	field_expression::field_expression(
		queries::query_table_shared_ptr query_table_,
		field_shared_ptr field_
		)
	: m_query_table(query_table_), m_field(field_)
	{};

	std::ostream& field_expression::get_expression(std::ostream& out_
		, adaptors::database_adaptor_shared_ptr adaptor_) const
	{
		if (!m_query_table)
			throw exceptions::sqlpp_exception("field expression: table is null");
		if (!m_field)
			throw exceptions::sqlpp_exception("field expression: field is null");

		return out_<< m_query_table->get_sql_name() <<"."<< m_field->get_name();
	};


field_expression_shared_ptr operator + (
	queries::query_table_shared_ptr table_,
	field_shared_ptr field_
	)	
{
	if (!table_)
		throw exceptions::sqlpp_exception("table is null");
	if (!field_)
		throw exceptions::sqlpp_exception("field is null");

	return field_expression_shared_ptr(
		new field_expression(
			table_,
			field_
			)
		);
};

}; // expressions
};//sqlpp

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Written By
Engineer
United States United States
Jonathan de Halleux is Civil Engineer in Applied Mathematics. He finished his PhD in 2004 in the rainy country of Belgium. After 2 years in the Common Language Runtime (i.e. .net), he is now working at Microsoft Research on Pex (http://research.microsoft.com/pex).

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