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)
