def queryone(self, query, mapper=None): timer = LogTimer(logger, 'Query one', 'Querying one:\n%s', query) result = query.one() timer.stop() if mapper: mapper.map(result) return result
def queryall(self, query, mapper=None): timer = LogTimer(logger, 'Query all', 'Querying all:\n%s', query) result = query.all() timer.stop() if mapper: for row in result: mapper.map(row) return result
def execute(self, query): cur = self.cursor() if not cur: raise Exception('Database is not connected') timer = LogTimer(logger, 'Execution', 'Executing:\n%s', query) try: return cur.execute(escape_statement(query)) finally: timer.stop()
def read_sql(file_): timer = LogTimer(logger, 'Reading input statements') try: sql = file_.read() except KeyboardInterrupt: # pragma: no cover sql = None finally: file_.close() timer.stop() return sql
def read_statements(opts): if opts.statements is not None: sql = opts.statements else: sql = read_sqls(opts.infile) if not sql: return None timer = LogTimer(logger, 'Splitting SQL statements') # Removes the shebang, if any sql = re.sub(r'^#!.*\n', '', sql) stmts = filter(lambda s: len(s.strip()) > 0, sqlparse.split(sql)) timer.stop() logger.info('Number of SQL statements: %d', len(stmts)) return stmts
def process(self, connection, opts): # Reads the statements stmts = read_statements(opts) # Exit gracefully when no statements have been found (or the # input got cancelled) if not stmts: return [] # Collects results results = [] # Counts the changes (inserts, updates) changes = 0 # Counts the errors (useful with option --ignore-errors) errors = 0 # Counts the statements counter = 0 timer = None executer = None try: # Connects to the database and starts a transaction connection.connect(opts.database) timer = LogTimer(logger, 'Executing SQL statements') if opts.isolate_statements: executer = IsolationExecuter(connection, opts) else: executer = DefaultExecuter(connection, opts) executer.begin() for stmt in stmts: start = datetime.now() sys.stdout.write( EXECUTION_START.get(opts.verbose, '').format(time=start, statement=stmt)) res, changed, failed = executer.execute(stmt) results.extend(res) changes += changed errors += failed counter += 1 if opts.progress > 0 and counter % opts.progress == 0: sys.stderr.write('.') sys.stderr.flush() end = datetime.now() sys.stdout.write( EXECUTION_END.get(opts.verbose, '').format( time=end, statement=trim_space(stmt), duration=(end - start).total_seconds())) if opts.dry_run: executer.rollback() else: executer.commit() if opts.progress > 0 and counter >= opts.progress: # Write a new line after progress indicator dots have # been written sys.stderr.write('\n') except BaseException: errors += 1 if executer: executer.rollback() if not opts.mute_errors: raise finally: connection.close() if timer: timer.stop() if not results: dry_run = '' if opts.dry_run: dry_run = ' (dry run)' sys.stdout.write('Changed rows: {0}{1}\n'.format(changes, dry_run)) if errors: sys.stdout.write('Errors: {0}'.format(errors)) return to_dto(results)
def process(self, connection, opts): # Reads the statements stmts = read_statements(opts) # Exit gracefully when no statements have been found (or the # input got cancelled) if not stmts: return [] # Collects results results = [] # Counts the changes (inserts, updates) changes = 0 # Counts the errors (useful with option --ignore-errors) errors = 0 # Counts the statements counter = 0 timer = None executer = None try: # Connects to the database and starts a transaction connection.connect(opts.database) timer = LogTimer(logger, 'Executing SQL statements') if opts.isolate_statements: executer = IsolationExecuter(connection, opts) else: executer = DefaultExecuter(connection, opts) executer.begin() for stmt in stmts: start = datetime.now() sys.stdout.write( EXECUTION_START.get(opts.verbose, '').format( time=start, statement=stmt)) res, changed, failed = executer.execute(stmt) results.extend(res) changes += changed errors += failed counter += 1 if opts.progress > 0 and counter % opts.progress == 0: sys.stderr.write('.') sys.stderr.flush() end = datetime.now() sys.stdout.write( EXECUTION_END.get(opts.verbose, '').format( time=end, statement=trim_space(stmt), duration=(end - start).total_seconds())) if opts.dry_run: executer.rollback() else: executer.commit() if opts.progress > 0 and counter >= opts.progress: # Write a new line after progress indicator dots have # been written sys.stderr.write('\n') except BaseException: errors += 1 if executer: executer.rollback() if not opts.mute_errors: raise finally: connection.close() if timer: timer.stop() if not results: dry_run = '' if opts.dry_run: dry_run = ' (dry run)' sys.stdout.write( 'Changed rows: {0}{1}\n'.format(changes, dry_run)) if errors: sys.stdout.write('Errors: {0}'.format(errors)) return to_dto(results)