Class DatabaseWrapper

django.db.backends.postgresql.base.DatabaseWrapper

Declaration

class DatabaseWrapper(BaseDatabaseWrapper)

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Methods

▶ def check_constraints(self, table_names=None) override
Check constraints by setting them to immediate. Return them to deferred afterward.
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This method overrides django.db.backends.base.base.BaseDatabaseWrapper.check_constraints.
▶ def chunked_cursor(self) override @async_unsafe
inherited doc Return a cursor that tries to avoid caching in the database (if supported by the database), otherwise return a regular cursor.
@async_unsafe
def chunked_cursor(self)
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This method overrides django.db.backends.base.base.BaseDatabaseWrapper.chunked_cursor.
▶ def create_cursor(self, name=None) override @async_unsafe
inherited doc Create a cursor. Assume that a connection is established.
@async_unsafe
def create_cursor(
self,
name=None,
)
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This method overrides django.db.backends.base.base.BaseDatabaseWrapper.create_cursor.
▶ def ensure_timezone(self) override
inherited doc Ensure the connection's timezone is set to `self.timezone_name` and return whether it changed or not.
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This method overrides django.db.backends.base.base.BaseDatabaseWrapper.ensure_timezone.
▶ def get_connection_params(self) override
inherited doc Return a dict of parameters suitable for get_new_connection.
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This method overrides django.db.backends.base.base.BaseDatabaseWrapper.get_connection_params.
▶ def get_new_connection(self, conn_params) override @async_unsafe
inherited doc Open a connection to the database.
@async_unsafe
def get_new_connection(
self,
conn_params,
)
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This method overrides django.db.backends.base.base.BaseDatabaseWrapper.get_new_connection.
▶ def init_connection_state(self) override
inherited doc Initialize the database connection settings.
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This method overrides django.db.backends.base.base.BaseDatabaseWrapper.init_connection_state.

▶ def is_usable(self) override

inherited doc Test if the database connection is usable.

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This method overrides django.db.backends.base.base.BaseDatabaseWrapper.is_usable.

This method may assume that self.connection is not None.

Actual implementations should take care not to raise exceptions
as that may prevent Django from recycling unusable connections.

▶ def make_debug_cursor(self, cursor) override
inherited doc Create a cursor that logs all queries in self.queries_log.
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This method overrides django.db.backends.base.base.BaseDatabaseWrapper.make_debug_cursor.
▷ def pg_version(self) @cached_property
@cached_property
def pg_version(self)
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▷ def tzinfo_factory(self, offset)
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Inherited methods

Subclasses

django.contrib.gis.db.backends.postgis.base.DatabaseWrapper

Reexports

Imported in django.contrib.gis.db.backends.postgis.base as Psycopg2DatabaseWrapper.