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Be lazier with original parent role computations to avoid unnecessary queries

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This commit is contained in:
Akita Noek 2016-03-26 09:56:57 -04:00
parent 712ec98f54
commit 7310f9aa44
1 changed files with 9 additions and 11 deletions
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20
awx/main/fields.py
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@ -3,7 +3,6 @@
# Django
from django.db.models.signals import (
post_init,
pre_save,
post_save,
post_delete,
@ -105,7 +104,6 @@ class ImplicitRoleField(models.ForeignKey):
setattr(cls, '__implicit_role_fields', [])
getattr(cls, '__implicit_role_fields').append(self)
post_init.connect(self._post_init, cls, True, dispatch_uid='implicit-role-post-init')
pre_save.connect(self._pre_save, cls, True, dispatch_uid='implicit-role-pre-save')
post_save.connect(self._post_save, cls, True, dispatch_uid='implicit-role-post-save')
post_delete.connect(self._post_delete, cls, True)
@ -163,15 +161,6 @@ class ImplicitRoleField(models.ForeignKey):
getattr(instance, self.name).parents.remove(getattr(obj, field_attr))
return _m2m_update
def _post_init(self, instance, *args, **kwargs):
original_parent_roles = dict()
if instance.pk:
for implicit_role_field in getattr(instance.__class__, '__implicit_role_fields'):
original_parent_roles[implicit_role_field.name] = implicit_role_field._resolve_parent_roles(instance)
setattr(instance, '__original_parent_roles', original_parent_roles)
def _create_role_instance_if_not_exists(self, instance):
role = getattr(instance, self.name, None)
if role:
@ -213,6 +202,15 @@ class ImplicitRoleField(models.ForeignKey):
for implicit_role_field in getattr(instance.__class__, '__implicit_role_fields'):
implicit_role_field._create_role_instance_if_not_exists(instance)
original_parent_roles = dict()
if instance.pk:
original = instance.__class__.objects.get(pk=instance.pk)
for implicit_role_field in getattr(instance.__class__, '__implicit_role_fields'):
original_parent_roles[implicit_role_field.name] = implicit_role_field._resolve_parent_roles(original)
setattr(instance, '__original_parent_roles', original_parent_roles)
def _post_save(self, instance, created, *args, **kwargs):
if created:
for implicit_role_field in getattr(instance.__class__, '__implicit_role_fields'):