Пример #1
0
class Mysql(object):
    ESCAPE_REGEX = re.compile(r"[\0\n\r\032\'\"\\]")
    ESCAPE_MAP = {'\0': '\\0', '\n': '\\n', '\r': '\\r', '\032': '\\Z',
                  '\'': '\\\'', '"': '\\"', '\\': '\\\\'}

    _instances = {}

    @classmethod
    def instance(cls, *config):
        if cls._instances.get(config) is None:
            cls._instances[config] = cls(*config)

        return cls._instances.get(config)

    def __init__(self, *config):
        """
        :param host
        :param port
        :param user
        :param password
        :param db
        :param auto_commit
        :param charset
        """
        self._conn = Connection()
        self._config = config

    @property
    def conn(self):
        if not self._conn.is_connected():
            try:
                self._conn.connect(*self._config)
            except socket.gaierror:
                raise MysqlError('cannot resolve hostname')
            except socket.error:
                raise MysqlError('cannot connect to mysql')
        return self._conn

    def execute(self, sql, args=None):
        evt = {
            'sql': sql,
            'args': args
        }
        LOGGER.debug("sql_execute:{}".format(evt))

        if not isinstance(args, (tuple, list, set)):
            args = (args,)
        try:
            query = self.conn.query(sql, args)
        except (socket.error, Error), e:
            LOGGER.info("connection error:{}".format(e))
            self._conn = Connection()
            query = self.conn.query(sql, args)

        if query:
            return Cursor(query)
        else:
            return None
Пример #2
0
 def __init__(self, *config):
     """
     :param host
     :param port
     :param user
     :param password
     :param db
     :param auto_commit
     :param charset
     """
     self._conn = Connection()
     self._config = config
Пример #3
0
    def execute(self, sql, args=None):
        evt = {
            'sql': sql,
            'args': args
        }
        LOGGER.debug("sql_execute:{}".format(evt))

        if not isinstance(args, (tuple, list, set)):
            args = (args,)
        try:
            query = self.conn.query(sql, args)
        except (socket.error, Error), e:
            LOGGER.info("connection error:{}".format(e))
            self._conn = Connection()
            query = self.conn.query(sql, args)
Пример #4
0
 def __init__(self, *config):
     """
     :param host
     :param port
     :param user
     :param password
     :param db
     :param auto_commit
     :param charset
     """
     self._conn = Connection()
     self._config = config
Пример #5
0
class Mysql(object):
    ESCAPE_REGEX = re.compile(r"[\0\n\r\032\'\"\\]")
    ESCAPE_MAP = {'\0': '\\0', '\n': '\\n', '\r': '\\r', '\032': '\\Z',
                  '\'': '\\\'', '"': '\\"', '\\': '\\\\'}

    _instances = {}

    @classmethod
    def instance(cls, *config):
        if cls._instances.get(config) is None:
            cls._instances[config] = cls(*config)

        return cls._instances.get(config)

    def __init__(self, *config):
        """
        :param host
        :param port
        :param user
        :param password
        :param db
        :param auto_commit
        :param charset
        """
        self._conn = Connection()
        self._config = config

    @property
    def conn(self):
        if not self._conn.is_connected():
            self._conn.connect(*self._config)

        return self._conn

    def execute(self, sql, args=None):
        evt = {
            'sql': sql,
            'args': args
        }
        LOGGER.debug("sql_execute:{}".format(evt))

        if not isinstance(args, (tuple, list)):
            args = (args,)

        query = self.conn.query(sql, args)

        if query:
            return Cursor(query)
        else:
            return None

    def rows_found(self):
        result = Cursor(self.conn.query('SELECT FOUND_ROWS() AS rows_found'))
        row = result.fetchone()

        if row:
            return row['rows_found']

        return 0

    def escape_string(self, raw_str):
        if isinstance(raw_str, unicode):
            raw_str = raw_str.encode('utf8')

        return ("%s" % (self.ESCAPE_REGEX.sub(
            lambda match: self.ESCAPE_MAP.get(match.group(0)), raw_str),))

    @staticmethod
    def escape_table(table_name):
        return "`{}`".format(table_name)

    def begin(self):
        self.conn.query("BEGIN")

    def commit(self):
        self.conn.query("COMMIT")

    def rollback(self):
        if self.conn.is_connected():
            self.conn.query("ROLLBACK")

    def close(self):
        if self.conn.is_connected():
            self.commit()
            self.conn.close()
Пример #6
0
class Mysql(object):
    ESCAPE_REGEX = re.compile(r"[\0\n\r\032\'\"\\]")
    ESCAPE_MAP = {
        '\0': '\\0',
        '\n': '\\n',
        '\r': '\\r',
        '\032': '\\Z',
        '\'': '\\\'',
        '"': '\\"',
        '\\': '\\\\'
    }

    _instances = {}

    @classmethod
    def instance(cls, *config):
        if cls._instances.get(config) is None:
            cls._instances[config] = cls(*config)

        return cls._instances.get(config)

    def __init__(self, *config):
        """
        :param host
        :param port
        :param user
        :param password
        :param db
        :param auto_commit
        :param charset
        """
        self._conn = Connection()
        self._config = config

    @property
    def conn(self):
        if not self._conn.is_connected():
            self._conn.connect(*self._config)

        return self._conn

    def execute(self, sql, args=None):
        evt = {'sql': sql, 'args': args}
        LOGGER.debug("sql_execute:{}".format(evt))

        if not isinstance(args, (tuple, list)):
            args = (args, )

        query = self.conn.query(sql, args)

        if query:
            return Cursor(query)
        else:
            return None

    def rows_found(self):
        result = Cursor(self.conn.query('SELECT FOUND_ROWS() AS rows_found'))
        row = result.fetchone()

        if row:
            return row['rows_found']

        return 0

    def escape_string(self, raw_str):
        if isinstance(raw_str, unicode):
            raw_str = raw_str.encode('utf8')

        return ("%s" % (self.ESCAPE_REGEX.sub(
            lambda match: self.ESCAPE_MAP.get(match.group(0)), raw_str), ))

    @staticmethod
    def escape_table(table_name):
        return "`{}`".format(table_name)

    def begin(self):
        self.conn.query("BEGIN")

    def commit(self):
        self.conn.query("COMMIT")

    def rollback(self):
        if self.conn.is_connected():
            self.conn.query("ROLLBACK")

    def close(self):
        if self.conn.is_connected():
            self.commit()
            self.conn.close()