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48 lines
889 B
C++
48 lines
889 B
C++
#pragma once
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#include <boost/noncopyable.hpp>
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#include <mysqlxx/Connection.h>
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namespace mysqlxx
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{
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/** RAII для транзакции. При инициализации, транзакция стартует.
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* При уничтожении, если не был вызван метод commit(), будет произведёт rollback.
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*/
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class Transaction : private boost::noncopyable
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{
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public:
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Transaction(Connection & conn_)
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: conn(conn_), finished(false)
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{
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conn.query("START TRANSACTION").execute();
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}
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virtual ~Transaction()
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{
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if (!finished)
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rollback();
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}
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void commit()
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{
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conn.query("COMMIT").execute();
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finished = true;
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}
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void rollback()
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{
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conn.query("ROLLBACK").execute();
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finished = true;
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}
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private:
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Connection & conn;
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bool finished;
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};
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}
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