64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
#ifndef QUERY_POSTGRES_CONNECTION_HPP
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#define QUERY_POSTGRES_CONNECTION_HPP
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#ifdef _MSC_VER
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#ifdef matador_postgres_EXPORTS
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#define MATADOR_POSTGRES_API __declspec(dllexport)
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#else
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#define MATADOR_POSTGRES_API __declspec(dllimport)
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#endif
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#pragma warning(disable: 4355)
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#else
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#define MATADOR_POSTGRES_API
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#endif
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#include "matador/sql/interface/connection_impl.hpp"
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#include <unordered_map>
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#include <libpq-fe.h>
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namespace matador::backends::postgres {
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class postgres_connection : public sql::connection_impl
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{
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public:
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explicit postgres_connection(const sql::connection_info &info);
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utils::result<void, utils::error> open() override;
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utils::result<void, utils::error> close() override;
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[[nodiscard]] utils::result<bool, utils::error> is_open() const override;
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[[nodiscard]] utils::result<bool, utils::error> is_valid() const override;
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[[nodiscard]] utils::result<utils::version, utils::error> client_version() const override;
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[[nodiscard]] utils::result<utils::version, utils::error> server_version() const override;
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utils::result<size_t, utils::error> execute(const std::string &stmt) override;
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utils::result<std::unique_ptr<sql::statement_impl>, utils::error> prepare(const sql::query_context &context) override;
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utils::result<std::unique_ptr<sql::query_result_impl>, utils::error> fetch(const sql::query_context &context) override;
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utils::result<std::vector<object::attribute_definition>, utils::error> describe(const std::string& table) override;
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utils::result<bool, utils::error> exists(const std::string &schema_name, const std::string &table_name) override;
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[[nodiscard]] std::string to_escaped_string( const utils::blob& value ) const override;
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private:
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[[nodiscard]] static std::string generate_statement_name(const sql::query_context &query) ;
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private:
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PGconn *conn_{nullptr};
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using string_to_int_map = std::unordered_map<std::string, unsigned long>;
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static string_to_int_map statement_name_map_;
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};
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}
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extern "C"
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{
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MATADOR_POSTGRES_API matador::sql::connection_impl* create_database(const matador::sql::connection_info &info);
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MATADOR_POSTGRES_API void destroy_database(matador::sql::connection_impl *db);
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}
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#endif //QUERY_POSTGRES_CONNECTION_HPP
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