def _base_set(self, mode, key, value, timeout=None): if timeout is None: timeout = self.default_timeout db = router.db_for_write(self.cache_model_class) table = connections[db].ops.quote_name(self._table) cursor = connections[db].cursor() cursor.execute("SELECT COUNT(*) FROM %s" % table) num = cursor.fetchone()[0] now = datetime.now().replace(microsecond=0) exp = datetime.fromtimestamp(time.time() + timeout).replace(microsecond=0) if num > self._max_entries: self._cull(db, cursor, now) encoded = base64.encodestring(pickle.dumps(value, 2)).strip() cursor.execute("SELECT cache_key, expires FROM %s WHERE cache_key = %%s" % table, [key]) try: result = cursor.fetchone() if result and (mode == 'set' or (mode == 'add' and result[1] < now)): cursor.execute("UPDATE %s SET value = %%s, expires = %%s WHERE cache_key = %%s" % table, [encoded, connections[db].ops.value_to_db_datetime(exp), key]) else: cursor.execute("INSERT INTO %s (cache_key, value, expires) VALUES (%%s, %%s, %%s)" % table, [key, encoded, connections[db].ops.value_to_db_datetime(exp)]) except DatabaseError: # To be threadsafe, updates/inserts are allowed to fail silently transaction.rollback_unless_managed(using=db) return False else: transaction.commit_unless_managed(using=db) return True
def _base_set(self, mode, key, value, timeout=None): if timeout is None: timeout = self.default_timeout db = router.db_for_write(self.cache_model_class) table = connections[db].ops.quote_name(self._table) cursor = connections[db].cursor() cursor.execute("SELECT COUNT(*) FROM %s" % table) num = cursor.fetchone()[0] now = datetime.now().replace(microsecond=0) exp = datetime.fromtimestamp(time.time() + timeout).replace(microsecond=0) if num > self._max_entries: self._cull(db, cursor, now) encoded = base64.encodestring(pickle.dumps(value, 2)).strip() cursor.execute("SELECT cache_key, expires FROM %s WHERE cache_key = %%s" % table, [key]) try: result = cursor.fetchone() if result and (mode == 'set' or (mode == 'add' and result[1] < now)): cursor.execute("UPDATE %s SET value = %%s, expires = %%s WHERE cache_key = %%s" % table, [encoded, connections[db].ops.value_to_db_datetime(exp), key]) else: cursor.execute("INSERT INTO %s (cache_key, value, expires) VALUES (%%s, %%s, %%s)" % table, [key, encoded, connections[db].ops.value_to_db_datetime(exp)]) except DatabaseError: # To be threadsafe, updates/inserts are allowed to fail silently transaction.rollback_unless_managed(using=db) return False else: transaction.commit_unless_managed(using=db) return True
def handle_app(self, app, **options): using = options.get('database', DEFAULT_DB_ALIAS) connection = connections[using] app_name = app.__name__.split('.')[-2] self.style = no_style() sql_list = sql_reset(app, self.style, connection) if options.get('interactive'): confirm = raw_input(""" You have requested a database reset. This will IRREVERSIBLY DESTROY any data for the "%s" application in the database "%s". Are you sure you want to do this? Type 'yes' to continue, or 'no' to cancel: """ % (app_name, connection.settings_dict['NAME'])) else: confirm = 'yes' if confirm == 'yes': try: cursor = connection.cursor() for sql in sql_list: cursor.execute(sql) except Exception, e: transaction.rollback_unless_managed() raise CommandError("""Error: %s couldn't be reset. Possible reasons: * The database isn't running or isn't configured correctly. * At least one of the database tables doesn't exist. * The SQL was invalid. Hint: Look at the output of 'django-admin.py sqlreset %s'. That's the SQL this command wasn't able to run. The full error: %s""" % (app_name, app_name, e)) transaction.commit_unless_managed()
def handle_noargs(self, **options): db = options.get('database', DEFAULT_DB_ALIAS) connection = connections[db] verbosity = int(options.get('verbosity', 1)) interactive = options.get('interactive') self.style = no_style() # Import the 'management' module within each installed app, to register # dispatcher events. for app_name in settings.INSTALLED_APPS: try: import_module('.management', app_name) except ImportError: pass sql_list = sql_flush(self.style, connection, only_django=True) if interactive: confirm = raw_input("""You have requested a flush of the database. This will IRREVERSIBLY DESTROY all data currently in the %r database, and return each table to the state it was in after syncdb. Are you sure you want to do this? Type 'yes' to continue, or 'no' to cancel: """ % connection.settings_dict['NAME']) else: confirm = 'yes' if confirm == 'yes': try: cursor = connection.cursor() for sql in sql_list: cursor.execute(sql) except Exception, e: transaction.rollback_unless_managed(using=db) raise CommandError("""Database %s couldn't be flushed. Possible reasons: * The database isn't running or isn't configured correctly. * At least one of the expected database tables doesn't exist. * The SQL was invalid. Hint: Look at the output of 'django-admin.py sqlflush'. That's the SQL this command wasn't able to run. The full error: %s""" % (connection.settings_dict['NAME'], e)) transaction.commit_unless_managed(using=db) # Emit the post sync signal. This allows individual # applications to respond as if the database had been # sync'd from scratch. all_models = [] for app in models.get_apps(): all_models.extend([ m for m in models.get_models(app, include_auto_created=True) if router.allow_syncdb(db, m) ]) emit_post_sync_signal(all_models, verbosity, interactive, db) # Reinstall the initial_data fixture. kwargs = options.copy() kwargs['database'] = db call_command('loaddata', 'initial_data', **kwargs)
def handle_app(self, app, **options): using = options.get("database", DEFAULT_DB_ALIAS) connection = connections[using] app_name = app.__name__.split(".")[-2] self.style = no_style() sql_list = sql_reset(app, self.style, connection) if options.get("interactive"): confirm = raw_input( """ You have requested a database reset. This will IRREVERSIBLY DESTROY any data for the "%s" application in the database "%s". Are you sure you want to do this? Type 'yes' to continue, or 'no' to cancel: """ % (app_name, connection.settings_dict["NAME"]) ) else: confirm = "yes" if confirm == "yes": try: cursor = connection.cursor() for sql in sql_list: cursor.execute(sql) except Exception, e: transaction.rollback_unless_managed() raise CommandError( """Error: %s couldn't be reset. Possible reasons: * The database isn't running or isn't configured correctly. * At least one of the database tables doesn't exist. * The SQL was invalid. Hint: Look at the output of 'django-admin.py sqlreset %s'. That's the SQL this command wasn't able to run. The full error: %s""" % (app_name, app_name, e) ) transaction.commit_unless_managed()
def handle_noargs(self, **options): verbosity = int(options.get('verbosity', 1)) interactive = options.get('interactive') show_traceback = options.get('traceback', False) # Stealth option -- 'load_initial_data' is used by the testing setup # process to disable initial fixture loading. load_initial_data = options.get('load_initial_data', True) self.style = no_style() # Import the 'management' module within each installed app, to register # dispatcher events. for app_name in settings.INSTALLED_APPS: try: import_module('.management', app_name) except ImportError as exc: # This is slightly hackish. We want to ignore ImportErrors # if the "management" module itself is missing -- but we don't # want to ignore the exception if the management module exists # but raises an ImportError for some reason. The only way we # can do this is to check the text of the exception. Note that # we're a bit broad in how we check the text, because different # Python implementations may not use the same text. # CPython uses the text "No module named management" # PyPy uses "No module named myproject.myapp.management" msg = exc.args[0] if not msg.startswith('No module named') or 'management' not in msg: raise db = options.get('database', DEFAULT_DB_ALIAS) connection = connections[db] cursor = connection.cursor() # Get a list of already installed *models* so that references work right. tables = connection.introspection.table_names() seen_models = connection.introspection.installed_models(tables) created_models = set() pending_references = {} # Build the manifest of apps and models that are to be synchronized all_models = [ (app.__name__.split('.')[-2], [m for m in models.get_models(app, include_auto_created=True) if router.allow_syncdb(db, m)]) for app in models.get_apps() ] def model_installed(model): opts = model._meta converter = connection.introspection.table_name_converter return not ((converter(opts.db_table) in tables) or (opts.auto_created and converter(opts.auto_created._meta.db_table) in tables)) manifest = SortedDict( (app_name, list(filter(model_installed, model_list))) for app_name, model_list in all_models ) # Create the tables for each model for app_name, model_list in list(manifest.items()): for model in model_list: # Create the model's database table, if it doesn't already exist. if verbosity >= 2: print("Processing %s.%s model" % (app_name, model._meta.object_name)) sql, references = connection.creation.sql_create_model(model, self.style, seen_models) seen_models.add(model) created_models.add(model) for refto, refs in list(references.items()): pending_references.setdefault(refto, []).extend(refs) if refto in seen_models: sql.extend(connection.creation.sql_for_pending_references(refto, self.style, pending_references)) sql.extend(connection.creation.sql_for_pending_references(model, self.style, pending_references)) if verbosity >= 1 and sql: print("Creating table %s" % model._meta.db_table) for statement in sql: cursor.execute(statement) tables.append(connection.introspection.table_name_converter(model._meta.db_table)) transaction.commit_unless_managed(using=db) # Send the post_syncdb signal, so individual apps can do whatever they need # to do at this point. emit_post_sync_signal(created_models, verbosity, interactive, db) # The connection may have been closed by a syncdb handler. cursor = connection.cursor() # Install custom SQL for the app (but only if this # is a model we've just created) for app_name, model_list in list(manifest.items()): for model in model_list: if model in created_models: custom_sql = custom_sql_for_model(model, self.style, connection) if custom_sql: if verbosity >= 1: print("Installing custom SQL for %s.%s model" % (app_name, model._meta.object_name)) try: for sql in custom_sql: cursor.execute(sql) except Exception as e: sys.stderr.write("Failed to install custom SQL for %s.%s model: %s\n" % (app_name, model._meta.object_name, e)) if show_traceback: import traceback traceback.print_exc() transaction.rollback_unless_managed(using=db) else: transaction.commit_unless_managed(using=db) else: if verbosity >= 2: print("No custom SQL for %s.%s model" % (app_name, model._meta.object_name)) # Install SQL indicies for all newly created models for app_name, model_list in list(manifest.items()): for model in model_list: if model in created_models: index_sql = connection.creation.sql_indexes_for_model(model, self.style) if index_sql: if verbosity >= 1: print("Installing index for %s.%s model" % (app_name, model._meta.object_name)) try: for sql in index_sql: cursor.execute(sql) except Exception as e: sys.stderr.write("Failed to install index for %s.%s model: %s\n" % (app_name, model._meta.object_name, e)) transaction.rollback_unless_managed(using=db) else: transaction.commit_unless_managed(using=db) # Load initial_data fixtures (unless that has been disabled) if load_initial_data: from google.appengine._internal.django.core.management import call_command call_command('loaddata', 'initial_data', verbosity=verbosity, database=db)
else: transaction.commit_unless_managed(using=db) else: if verbosity >= 2: print "No custom SQL for %s.%s model" % (app_name, model._meta.object_name) # Install SQL indicies for all newly created models for app_name, model_list in manifest.items(): for model in model_list: if model in created_models: index_sql = connection.creation.sql_indexes_for_model(model, self.style) if index_sql: if verbosity >= 1: print "Installing index for %s.%s model" % (app_name, model._meta.object_name) try: for sql in index_sql: cursor.execute(sql) except Exception, e: sys.stderr.write( "Failed to install index for %s.%s model: %s\n" % (app_name, model._meta.object_name, e) ) transaction.rollback_unless_managed(using=db) else: transaction.commit_unless_managed(using=db) # Load initial_data fixtures (unless that has been disabled) if load_initial_data: from google.appengine._internal.django.core.management import call_command call_command("loaddata", "initial_data", verbosity=verbosity, database=db)
app_name, model._meta.object_name) # Install SQL indicies for all newly created models for app_name, model_list in manifest.items(): for model in model_list: if model in created_models: index_sql = connection.creation.sql_indexes_for_model( model, self.style) if index_sql: if verbosity >= 1: print "Installing index for %s.%s model" % ( app_name, model._meta.object_name) try: for sql in index_sql: cursor.execute(sql) except Exception, e: sys.stderr.write( "Failed to install index for %s.%s model: %s\n" % (app_name, model._meta.object_name, e)) transaction.rollback_unless_managed(using=db) else: transaction.commit_unless_managed(using=db) # Load initial_data fixtures (unless that has been disabled) if load_initial_data: from google.appengine._internal.django.core.management import call_command call_command('loaddata', 'initial_data', verbosity=verbosity, database=db)