Wt::Dbo::backend::MySQLStatement Class Reference

MySQL prepared statement. More...

Inheritance diagram for Wt::Dbo::backend::MySQLStatement:

Public Member Functions
virtual void	reset () override
	Resets the statement.
virtual void	bind (int column, const std::string &value) override
	Binds a value to a column.
virtual void	bind (int column, short value) override
	Binds a value to a column.
virtual void	bind (int column, int value) override
	Binds a value to a column.
virtual void	bind (int column, long long value) override
	Binds a value to a column.
virtual void	bind (int column, float value) override
	Binds a value to a column.
virtual void	bind (int column, double value) override
	Binds a value to a column.
virtual void	bind (int column, const std::chrono::system_clock::time_point &value, SqlDateTimeType type) override
	Binds a value to a column.
virtual void	bind (int column, const std::chrono::duration< int, std::milli > &value) override
	Binds a value to a column.
virtual void	bind (int column, const std::vector< unsigned char > &value) override
	Binds a value to a column.
virtual void	bindNull (int column) override
	Binds null to a column.
virtual void	execute () override
	Executes the statement.
virtual long long	insertedId () override
	Returns the id if the statement was an SQL insert.
virtual int	affectedRowCount () override
	Returns the affected number of rows. More...
virtual bool	nextRow () override
	Fetches the next result row. More...
virtual bool	getResult (int column, std::string *value, int size) override
	Fetches a result value. More...
virtual bool	getResult (int column, short *value) override
	Fetches a result value. More...
virtual bool	getResult (int column, int *value) override
	Fetches a result value. More...
virtual bool	getResult (int column, long long *value) override
	Fetches a result value. More...
virtual bool	getResult (int column, float *value) override
	Fetches a result value. More...
virtual bool	getResult (int column, double *value) override
	Fetches a result value. More...
virtual bool	getResult (int column, std::chrono::system_clock::time_point *value, SqlDateTimeType type) override
	Fetches a result value. More...
virtual bool	getResult (int column, std::chrono::duration< int, std::milli > *value) override
	Fetches a result value. More...
virtual bool	getResult (int column, std::vector< unsigned char > *value, int size) override
	Fetches a result value. More...
virtual std::string	sql () const override
	Returns the prepared SQL string.
Public Member Functions inherited from Wt::Dbo::SqlStatement
virtual	~SqlStatement ()
	Destructor.
bool	use ()
	Uses the statement. More...
void	done ()
	Finish statement use. More...

Detailed Description

MySQL prepared statement.

Member Function Documentation

virtual int Wt::Dbo::backend::MySQLStatement::affectedRowCount ( )

overridevirtual

Returns the affected number of rows.

This is only useful for an SQL update or delete statement.

Implements Wt::Dbo::SqlStatement.

virtual bool Wt::Dbo::backend::MySQLStatement::getResult ( int  column, std::string *  value, int  size  )

overridevirtual

Fetches a result value.

Returns true when the value was not null. The size is the expected size of sql string type and can be used to dimension buffers but the return string may be bigger.

Implements Wt::Dbo::SqlStatement.

virtual bool Wt::Dbo::backend::MySQLStatement::getResult ( int  column, short *  value  )

overridevirtual

Fetches a result value.

Returns true when the value was not null.

Implements Wt::Dbo::SqlStatement.

virtual bool Wt::Dbo::backend::MySQLStatement::getResult ( int  column, int *  value  )

overridevirtual

Fetches a result value.

Returns true when the value was not null.

Implements Wt::Dbo::SqlStatement.

virtual bool Wt::Dbo::backend::MySQLStatement::getResult ( int  column, long long *  value  )

overridevirtual

Fetches a result value.

Returns true when the value was not null.

Implements Wt::Dbo::SqlStatement.

virtual bool Wt::Dbo::backend::MySQLStatement::getResult ( int  column, float *  value  )

overridevirtual

Fetches a result value.

Returns true when the value was not null.

Implements Wt::Dbo::SqlStatement.

virtual bool Wt::Dbo::backend::MySQLStatement::getResult ( int  column, double *  value  )

overridevirtual

Fetches a result value.

Returns true when the value was not null.

Implements Wt::Dbo::SqlStatement.

virtual bool Wt::Dbo::backend::MySQLStatement::getResult ( int  column, std::chrono::system_clock::time_point *  value, SqlDateTimeType  type  )

overridevirtual

Fetches a result value.

Returns true when the value was not null.

Implements Wt::Dbo::SqlStatement.

virtual bool Wt::Dbo::backend::MySQLStatement::getResult ( int  column, std::chrono::duration< int, std::milli > *  value  )

overridevirtual

Fetches a result value.

Returns true when the value was not null.

Implements Wt::Dbo::SqlStatement.

virtual bool Wt::Dbo::backend::MySQLStatement::getResult ( int  column, std::vector< unsigned char > *  value, int  size  )

overridevirtual

Fetches a result value.

Returns true when the value was not null.

Implements Wt::Dbo::SqlStatement.

virtual bool Wt::Dbo::backend::MySQLStatement::nextRow ( )

overridevirtual

Fetches the next result row.

Returns true if there was one more row to be fetched.

Implements Wt::Dbo::SqlStatement.