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use frozensets for better performance

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This commit is contained in:
Laura Klünder 2019-12-10 14:46:46 +01:00
parent a49fed2b20
commit 127673f3b0
1 changed files with 7 additions and 6 deletions
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13
src/c3nav/editor/wrappers.py
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@ -22,9 +22,10 @@ class BaseWrapper:
Callables will only be returned be getattr when they are inside _allowed_callables. Callables will only be returned be getattr when they are inside _allowed_callables.
Callables in _wrapped_callables will be returned wrapped, so that their self if the wrapping instance. Callables in _wrapped_callables will be returned wrapped, so that their self if the wrapping instance.
""" """
_not_wrapped = ('_changeset', '_obj', '_created_pks', '_result', '_extra', '_result_cache') _not_wrapped = frozenset(('_changeset', '_obj', '_created_pks', '_result', '_extra', '_result_cache',
_allowed_callables = () '_affected_by_changeset'))
_wrapped_callables = () _allowed_callables = frozenset()
_wrapped_callables = frozenset()
def __init__(self, changeset, obj): def __init__(self, changeset, obj):
self._changeset = changeset self._changeset = changeset
@ -194,8 +195,8 @@ class ModelInstanceWrapper(BaseWrapper):
Updates updated values on existing objects on init. Updates updated values on existing objects on init.
Can be compared to other wrapped or non-wrapped model instances. Can be compared to other wrapped or non-wrapped model instances.
""" """
_allowed_callables = ('full_clean', '_perform_unique_checks', '_perform_date_checks') _allowed_callables = frozenset(('full_clean', '_perform_unique_checks', '_perform_date_checks'))
_wrapped_callables = ('validate_unique', '_get_pk_val') _wrapped_callables = frozenset(('validate_unique', '_get_pk_val'))
def __init__(self, *args, **kwargs): def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs) super().__init__(*args, **kwargs)
@ -299,7 +300,7 @@ class BaseQueryWrapper(BaseWrapper):
Keeps track of which created objects the current filtering still applies to. Keeps track of which created objects the current filtering still applies to.
When evaluated, just does everything as if the queryset was applied to the databse. When evaluated, just does everything as if the queryset was applied to the databse.
""" """
_allowed_callables = ('_add_hints', 'get_prefetch_queryset', '_apply_rel_filters') _allowed_callables = frozenset(('_add_hints', 'get_prefetch_queryset', '_apply_rel_filters'))
def __init__(self, changeset, obj, created_pks=None, extra=()): def __init__(self, changeset, obj, created_pks=None, extra=()):
super().__init__(changeset, obj) super().__init__(changeset, obj)