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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 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')
_allowed_callables = ()
_wrapped_callables = ()
_not_wrapped = frozenset(('_changeset', '_obj', '_created_pks', '_result', '_extra', '_result_cache',
'_affected_by_changeset'))
_allowed_callables = frozenset()
_wrapped_callables = frozenset()
def __init__(self, changeset, obj):
self._changeset = changeset
@ -194,8 +195,8 @@ class ModelInstanceWrapper(BaseWrapper):
Updates updated values on existing objects on init.
Can be compared to other wrapped or non-wrapped model instances.
"""
_allowed_callables = ('full_clean', '_perform_unique_checks', '_perform_date_checks')
_wrapped_callables = ('validate_unique', '_get_pk_val')
_allowed_callables = frozenset(('full_clean', '_perform_unique_checks', '_perform_date_checks'))
_wrapped_callables = frozenset(('validate_unique', '_get_pk_val'))
def __init__(self, *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.
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=()):
super().__init__(changeset, obj)