def __exit__(self, exc_type, exc_val, exc_tb):
"""
Destroy the context, pop itself from context stack and unbind all events.
"""
_context_stacks.setdefault(get_context_id(), []).pop()
self.unbind_events()
self.cleanup()
def get_current_store_manager(cls) -> 'StoreManager':
"""
Find the current :class:`StoreManager` in context stack if any. else :exc:`.ContextError` will be raised.
"""
try:
return _context_stacks.setdefault(get_context_id(), [])[-1]
except IndexError:
raise ContextError('Not in store manager context.')
def __enter__(self):
"""
Enters the context: bind events and push itself into context stack.
:return: self
"""
self.bind_events()
_context_stacks.setdefault(get_context_id(), []).append(self)
return self
