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save last change in changeset and lock changesets before changing stuff

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This commit is contained in:
Laura Klünder 2017-07-04 17:05:29 +02:00
parent f0758b9a5c
commit a49019f6d8
11 changed files with 152 additions and 94 deletions
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18
src/c3nav/editor/models/changedobject.py
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@ -2,7 +2,6 @@ import typing
from itertools import chain
from django.contrib.contenttypes.models import ContentType
from django.core.cache import cache
from django.db import models
from django.db.models import Field
from django.utils.translation import ugettext_lazy as _
@ -20,14 +19,12 @@ class ChangedObjectManager(models.Manager):
class ChangedObject(models.Model):
changeset = models.ForeignKey('editor.ChangeSet', on_delete=models.CASCADE, verbose_name=_('Change Set'))
created = models.DateTimeField(auto_now_add=True, verbose_name=_('created'))
last_update = models.DateTimeField(auto_now=True, verbose_name=_('last update'))
content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
existing_object_pk = models.PositiveIntegerField(null=True, verbose_name=_('id of existing object'))
updated_fields = JSONField(default={}, verbose_name=_('updated fields'))
m2m_added = JSONField(default={}, verbose_name=_('added m2m values'))
m2m_removed = JSONField(default={}, verbose_name=_('removed m2m values'))
deleted = models.BooleanField(default=False, verbose_name=_('object was deleted'))
stale = models.BooleanField(default=False, verbose_name=_('stale'))
objects = ChangedObjectManager()
@ -109,10 +106,7 @@ class ChangedObject(models.Model):
model = self.model_class
pk = self.obj_pk
if not self.stale:
self.changeset.changed_objects.setdefault(model, {})[pk] = self
else:
self.changeset.changed_objects.get(model, {}).pop(pk, None)
self.changeset.changed_objects.setdefault(model, {})[pk] = self
if self.is_created:
if not self.deleted:
@ -268,18 +262,16 @@ class ChangedObject(models.Model):
self.m2m_added = {name: tuple(values) for name, values in self._m2m_added_cache.items()}
self.m2m_removed = {name: tuple(values) for name, values in self._m2m_removed_cache.items()}
if not self.does_something:
self.stale = True
if not self.stale:
if self.pk:
self.delete()
else:
if not standalone and self.changeset.pk is None:
self.changeset.save()
self.changeset = self.changeset
else:
self.existing_object_pk = None
if not standalone and not self.changeset.fill_changes_cache():
self.update_changeset_cache()
if not self.stale or self.pk is not None:
if self.does_something:
super().save(*args, **kwargs)
cache.set('changeset:%s:last_change' % self.changeset_id, self.last_update, 900)
def delete(self, **kwargs):
raise TypeError('changed objects can not be deleted directly.')