Helper base class for the transaction class template. More...

#include <transaction.hxx>

Inheritance diagram for pqxx::internal::basic_transaction:

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Protected Member Functions
	basic_transaction (connection &c, zview begin_command, std::string_view tname)

	basic_transaction (connection &c, zview begin_command, std::string &&tname)

	basic_transaction (connection &c, zview begin_command)

virtual	~basic_transaction () noexcept override=0

Protected Member Functions inherited from pqxx::dbtransaction
	dbtransaction (connection &c)
	Begin transaction. More...

	dbtransaction (connection &c, std::string_view tname)
	Begin transaction. More...

	dbtransaction (connection &c, std::string_view tname, std::shared_ptr< std::string > rollback_cmd)
	Begin transaction. More...

Protected Member Functions inherited from pqxx::transaction_base
	transaction_base (connection &c, std::string_view tname, std::shared_ptr< std::string > rollback_cmd)
	Create a transaction (to be called by implementation classes only). More...

	transaction_base (connection &c, std::string_view tname)
	Create a transaction (to be called by implementation classes only). More...

	transaction_base (connection &c)
	Create a transaction (to be called by implementation classes only). More...

void	register_transaction ()
	Register this transaction with the connection. More...

void	close () noexcept
	End transaction. To be called by implementing class' destructor. More...

virtual void	do_abort ()
	Transaction type-specific way of aborting a transaction. More...

void	set_rollback_cmd (std::shared_ptr< std::string > cmd)
	Set the rollback command. More...

result	direct_exec (std::string_view, std::string_view desc=""sv)
	Execute query on connection directly. More...

result	direct_exec (std::shared_ptr< std::string >, std::string_view desc=""sv)

Additional Inherited Members
Public Member Functions inherited from pqxx::transaction_base
	transaction_base ()=delete

	transaction_base (transaction_base const &)=delete

	transaction_base (transaction_base &&)=delete

transaction_base &	operator= (transaction_base const &)=delete

transaction_base &	operator= (transaction_base &&)=delete

virtual	~transaction_base ()=0

void	commit ()
	Commit the transaction. More...

void	abort ()
	Abort the transaction. More...

template<typename... ARGS>
auto	esc (ARGS &&...args) const
	Escape string for use as SQL string literal in this transaction. More...

template<typename... ARGS>
auto	esc_raw (ARGS &&...args) const
	Escape binary data for use as SQL string literal in this transaction. More...

std::string	unesc_raw (zview text) const
	Unescape binary data, e.g. from a table field or notification payload. More...

bytes	unesc_bin (zview text)
	Unescape binary data, e.g. from a table field or notification payload. More...

std::string	unesc_raw (char const *text) const
	Unescape binary data, e.g. from a table field or notification payload. More...

bytes	unesc_bin (char const text[])
	Unescape binary data, e.g. from a table field or notification payload. More...

template<typename T >
std::string	quote (T const &t) const
	Represent object as SQL string, including quoting & escaping. More...

std::string	quote (binarystring const &t) const

std::string	quote_raw (unsigned char const bin[], std::size_t len) const
	Binary-escape and quote a binary string for use as an SQL constant. More...

std::string	quote_raw (zview bin) const
	Binary-escape and quote a binary string for use as an SQL constant. More...

std::string	quote_name (std::string_view identifier) const
	Escape an SQL identifier for use in a query. More...

std::string	esc_like (std::string_view bin, char escape_char='\\') const
	Escape string for literal LIKE match. More...

template<>
zview	query_value (zview query, std::string_view desc)=delete
	Forbidden specialisation: underlying buffer immediately goes out of scope. More...

result	exec (std::string_view query, std::string_view desc)
	Execute a command. More...

result	exec (std::string_view query)
	Execute a command. More...

result	exec (std::stringstream const &query, std::string_view desc)
	Execute a command. More...

result	exec0 (zview query, std::string_view desc)
	Execute command, which should return zero rows of data. More...

result	exec0 (zview query)
	Execute command, which should return zero rows of data. More...

row	exec1 (zview query, std::string_view desc)
	Execute command returning a single row of data. More...

row	exec1 (zview query)
	Execute command returning a single row of data. More...

result	exec_n (result::size_type rows, zview query, std::string_view desc)
	Execute command, expect given number of rows. More...

result	exec_n (result::size_type rows, zview query)
	Execute command, expect given number of rows. More...

template<typename TYPE >
TYPE	query_value (zview query, std::string_view desc)
	Perform query, expecting exactly 1 row with 1 field, and convert it. More...

template<typename TYPE >
TYPE	query_value (zview query)
	Perform query, expecting exactly 1 row with 1 field, and convert it. More...

template<typename... TYPE>
std::tuple< TYPE... >	query1 (zview query)
	Perform query returning exactly one row, and convert its fields. More...

template<typename... TYPE>
std::optional< std::tuple< TYPE... > >	query01 (zview query)
	Query at most one row of data, and if there is one, convert it. More...

template<typename... TYPE>
auto	stream (std::string_view query) &
	Execute a query, in streaming fashion; loop over the results row by row. More...

template<typename CALLABLE >
auto	for_stream (std::string_view query, CALLABLE &&func)
	Perform a streaming query, and for each result row, call `func`. More...

template<typename CALLABLE >
auto	for_each (std::string_view query, CALLABLE &&func)

template<typename... TYPE>
auto	query (zview query)
	Execute query, read full results, then iterate rows of data. More...

template<typename... TYPE>
auto	query_n (result::size_type rows, zview query)
	Perform query, expect given number of rows, iterate results. More...

template<typename CALLABLE >
void	for_query (zview query, CALLABLE &&func)
	Execute a query, load the full result, and perform `func` for each row. More...

template<typename... Args>
result	exec_params (zview query, Args &&...args)
	Execute an SQL statement with parameters. More...

template<typename... Args>
row	exec_params1 (zview query, Args &&...args)

template<typename... Args>
result	exec_params0 (zview query, Args &&...args)

template<typename... Args>
result	exec_params_n (std::size_t rows, zview query, Args &&...args)

template<typename... Args>
result	exec_params_n (result::size_type rows, zview query, Args &&...args)

template<typename... TYPE>
auto	query (zview query, params const &parms)
	Execute parameterised query, read full results, iterate rows of data. More...

template<typename... TYPE>
auto	query_n (result::size_type rows, zview query, params const &parms)

template<typename TYPE >
TYPE	query_value (zview query, params const &parms)
	Perform query, expecting exactly 1 row with 1 field, and convert it. More...

template<typename... TYPE>
std::tuple< TYPE... >	query1 (zview query, params const &parms)
	Perform query returning exactly one row, and convert its fields. More...

template<typename... TYPE>
std::optional< std::tuple< TYPE... > >	query01 (zview query, params const &parms)
	Query at most one row of data, and if there is one, convert it. More...

template<typename CALLABLE >
void	for_query (zview query, CALLABLE &&func, params const &parms)
	Execute a query, load the full result, and perform `func` for each row. More...

template<typename... Args>
result	exec_prepared (zview statement, Args &&...args)
	Execute a prepared statement, with optional arguments. More...

template<typename... Args>
row	exec_prepared1 (zview statement, Args &&...args)
	Execute a prepared statement, and expect a single-row result. More...

template<typename... Args>
result	exec_prepared0 (zview statement, Args &&...args)
	Execute a prepared statement, and expect a result with zero rows. More...

template<typename... Args>
result	exec_prepared_n (result::size_type rows, zview statement, Args &&...args)
	Execute a prepared statement, expect a result with given number of rows. More...

void	process_notice (char const msg[]) const
	Have connection process a warning message. More...

void	process_notice (zview msg) const
	Have connection process a warning message. More...

constexpr connection &	conn () const noexcept
	The connection in which this transaction lives. More...

void	set_variable (std::string_view var, std::string_view value)
	Set session variable using SQL "SET" command. More...

std::string	get_variable (std::string_view)
	Read session variable using SQL "SHOW" command. More...

std::string_view	name () const &noexcept
	Transaction name, if you passed one to the constructor; or empty string. More...

Detailed Description

Helper base class for the transaction class template.

Constructor & Destructor Documentation

◆ basic_transaction() [1/3]

pqxx::internal::basic_transaction::basic_transaction	(	connection &	c,
		zview	begin_command,
		std::string_view	tname
	)

protected

Implementation of the pqxx::transaction class.

pqxx::transaction represents a regular database transaction.

See COPYING for copyright license. If you did not receive a file called COPYING with this source code, please notify the distributor of this mistake, or contact the author.

References pqxx::transaction_base::direct_exec(), and pqxx::transaction_base::register_transaction().