def _post_delete(self, sender, instance, **kwargs):
"""
Invalidation upon object deletion.
"""
# NOTE: this will behave wrong if someone changed object fields
# before deletion (why anyone will do that?)
invalidate_obj(instance)
def author_edit(request):
author = request.user
data = {}
data['page_title'] = 'Настройки профиля'
if request.POST:
invalidate_obj(author)
if 'save_profile' in request.POST:
profile_form = AuthorEditProfileForm(request.POST, instance=author, prefix='profile_form')
if profile_form.is_valid():
profile_form.save()
data['profile_ok'] = True
if 'save_email' in request.POST:
email_form = AuthorEditEmailForm(request.POST, author=author, prefix='email_form')
if email_form.is_valid():
email_form.save()
data['email_ok'] = True
if 'save_password' in request.POST:
password_form = AuthorEditPasswordForm(request.POST, author=author, prefix='password_form')
if password_form.is_valid():
password_form.save()
data['password_ok'] = True
else:
data['password_form_nfe'] = password_form.non_field_errors()
if 'save_prefs' in request.POST:
prefs_form = AuthorEditPrefsForm(request.POST, author=author, prefix='prefs_form')
if prefs_form.is_valid():
prefs_form.save()
data['prefs_ok'] = True
profile_form = AuthorEditProfileForm(instance=author, prefix='profile_form')
email_form = AuthorEditEmailForm(author=author, prefix='email_form')
password_form = AuthorEditPasswordForm(author=author, prefix='password_form')
prefs_form = AuthorEditPrefsForm(author=author, prefix='prefs_form')
data.update({'profile_form': profile_form, 'email_form': email_form, 'password_form': password_form, 'prefs_form': prefs_form})
return render(request, 'author_profile_edit.html', data)
def invalidate_m2m(sender=None, instance=None, model=None, action=None, pk_set=None, **kwargs):
"""
Invoke invalidation on m2m changes.
"""
if action in ('post_add', 'post_remove', 'post_clear'):
invalidate_model(sender) # NOTE: this is harsh, but what's the alternative?
invalidate_obj(instance)
def _post_delete(self, sender, instance, **kwargs):
"""
Invalidation upon object deletion.
"""
# NOTE: this will behave wrong if someone changed object fields
# before deletion (why anyone will do that?)
invalidate_obj(instance)
def delete(self, request, *args, **kwargs):
self.chapter = self.get_object()
self.story.chapter_set.filter(order__gt=self.chapter.order).update(order=F('order')-1)
for chapter in self.story.chapter_set.filter(order__gt=self.chapter.order):
invalidate_obj(chapter)
self.chapter.delete()
return redirect('story_edit', self.story.id)
def story_bookmark(request, pk):
from ponyFiction.models import Bookmark
story = get_object_or_404(Story.objects.accessible(user=request.user), pk=pk)
(bookmark, created) = Bookmark.objects.get_or_create(story=story, author=request.user)
if not created:
bookmark.delete()
invalidate_obj(story)
return redirect('bookmarks')
def story_favorite(request, pk):
from ponyFiction.models import Favorites
story = get_object_or_404(Story.objects.accessible(user=request.user), pk=pk)
(favorite, created) = Favorites.objects.get_or_create(story=story, author=request.user)
if not created:
favorite.delete()
invalidate_obj(story)
return redirect('favorites', request.user.id)
def story_bookmark_ajax(request, story_id):
""" Добавление рассказа в закладки """
story = get_object_or_404(Story.objects.accessible(user=request.user), pk=story_id)
(bookmark, created) = Bookmark.objects.get_or_create(story=story, author=request.user)
if not created:
bookmark.delete()
invalidate_obj(story)
return HttpResponse(story_id)
def delete(self, request, *args, **kwargs):
self.chapter = self.get_object()
self.story.chapter_set.filter(order__gt=self.chapter.order).update(
order=F('order') - 1)
for chapter in self.story.chapter_set.filter(
order__gt=self.chapter.order):
invalidate_obj(chapter)
self.chapter.delete()
return redirect('story_edit', self.story.id)
def invalidate_m2m(sender=None, instance=None, model=None, action=None, pk_set=None, **kwargs):
"""
Invoke invalidation on m2m changes.
"""
if action in ("post_add", "post_remove", "post_clear"):
invalidate_model(sender) # NOTE: this is harsh, but what's the alternative?
invalidate_obj(instance)
# TODO: more granular invalidation for referenced models
invalidate_model(model)
def story_favorite_ajax(request, story_id):
""" Добавление рассказа в избранное """
story = get_object_or_404(Story.objects.accessible(user=request.user), pk=story_id)
(favorite, created) = Favorites.objects.get_or_create(story=story, author=request.user)
if not created:
favorite.delete()
invalidate_obj(story)
return HttpResponse(story_id)
def story_favorite_ajax(request, story_id):
""" Добавление рассказа в избранное """
story = get_object_or_404(Story.objects.accessible(user=request.user),
pk=story_id)
(favorite, created) = Favorites.objects.get_or_create(story=story,
author=request.user)
if not created:
favorite.delete()
invalidate_obj(story)
return HttpResponse(story_id)
def story_bookmark_ajax(request, story_id):
""" Добавление рассказа в закладки """
story = get_object_or_404(Story.objects.accessible(user=request.user),
pk=story_id)
(bookmark, created) = Bookmark.objects.get_or_create(story=story,
author=request.user)
if not created:
bookmark.delete()
invalidate_obj(story)
return HttpResponse(story_id)
def invalidate_m2m(sender=None,
instance=None,
model=None,
action=None,
pk_set=None,
**kwargs):
"""
Invoke invalidation on m2m changes.
"""
if action in ('post_add', 'post_remove', 'post_clear'):
invalidate_model(
sender) # NOTE: this is harsh, but what's the alternative?
invalidate_obj(instance)
def _post_save(self, sender, instance, **kwargs):
"""
Invokes invalidations for both old and new versions of saved object
"""
old = _old_objs[sender].pop(instance.pk, None)
if old:
invalidate_obj(old)
invalidate_obj(instance)
# Enabled cache_on_save makes us write saved object to cache.
# Later it can be retrieved with .get(<cache_on_save_field>=<value>)
# <cache_on_save_field> is pk unless specified.
# This sweet trick saves a db request and helps with slave lag.
cache_on_save = instance._cacheprofile.get('cache_on_save')
if cache_on_save:
# HACK: We get this object "from field" so it can contain
# some undesirable attributes or other objects attached.
# RelatedField accessors do that, for example.
#
# So we strip down any _*_cache attrs before saving
# and later reassign them
# Stripping up undesirable attributes
unwanted_attrs = [
k for k in instance.__dict__.keys()
if k.startswith('_') and k.endswith('_cache')
]
unwanted_dict = dict(
(k, instance.__dict__[k]) for k in unwanted_attrs)
for k in unwanted_attrs:
del instance.__dict__[k]
key = cache_on_save if isinstance(cache_on_save,
basestring) else 'pk'
# Django doesn't allow filters like related_id = 1337.
# So we just hacky strip _id from end of a key
# TODO: make it right, _meta.get_field() should help
filter_key = key[:-3] if key.endswith('_id') else key
cond = {filter_key: getattr(instance, key)}
qs = sender.objects.inplace().filter(**cond).order_by()
if MAX_GET_RESULTS:
qs = qs[:MAX_GET_RESULTS + 1]
qs._cache_results(qs._cache_key(), [instance])
# Reverting stripped attributes
instance.__dict__.update(unwanted_dict)
def _post_save(self, sender, instance, **kwargs):
"""
Invokes invalidations for both old and new versions of saved object
"""
old = _old_objs[sender].pop(instance.pk, None)
if old:
invalidate_obj(old)
invalidate_obj(instance)
# Enabled cache_on_save makes us write saved object to cache.
# Later it can be retrieved with .get(<cache_on_save_field>=<value>)
# <cache_on_save_field> is pk unless specified.
# This sweet trick saves a db request and helps with slave lag.
cache_on_save = instance._cacheprofile.get('cache_on_save')
if cache_on_save:
# HACK: We get this object "from field" so it can contain
# some undesirable attributes or other objects attached.
# RelatedField accessors do that, for example.
#
# So we strip down any _*_cache attrs before saving
# and later reassign them
# Stripping up undesirable attributes
unwanted_attrs = [k for k in instance.__dict__.keys()
if k.startswith('_') and k.endswith('_cache')]
unwanted_dict = dict((k, instance.__dict__[k]) for k in unwanted_attrs)
for k in unwanted_attrs:
del instance.__dict__[k]
key = 'pk' if cache_on_save is True else cache_on_save
# Django doesn't allow filters like related_id = 1337.
# So we just hacky strip _id from end of a key
# TODO: make it right, _meta.get_field() should help
filter_key = key[:-3] if key.endswith('_id') else key
cond = {filter_key: getattr(instance, key)}
qs = sender.objects.inplace().filter(**cond).order_by()
if MAX_GET_RESULTS:
qs = qs[:MAX_GET_RESULTS + 1]
qs._cache_results(qs._cache_key(), [instance])
# Reverting stripped attributes
instance.__dict__.update(unwanted_dict)
def _post_save(self, sender, instance, **kwargs):
"""
Invokes invalidations for both old and new versions of saved object
"""
old = _old_objs[get_model_name(instance.__class__)].pop(instance.pk, None)
if old:
invalidate_obj(old)
invalidate_obj(instance)
# Enabled cache_on_save makes us write saved object to cache.
# Later it can be retrieved with .get(<cache_on_save_field>=<value>)
# <cache_on_save_field> is pk unless specified.
# This sweet trick saves a db request and helps with slave lag.
cache_on_save = instance._cacheprofile.get('cache_on_save')
if cache_on_save:
# HACK: We get this object "from field" so it can contain
# some undesirable attributes or other objects attached.
# RelatedField accessors do that, for example.
#
# So we strip down any _*_cache attrs before saving
# and later reassign them
# Stripping up undesirable attributes
unwanted_attrs = [k for k in instance.__dict__.keys() if k.startswith('_') and k.endswith('_cache')]
unwanted_dict = dict((k, instance.__dict__[k]) for k in unwanted_attrs)
for k in unwanted_attrs:
del instance.__dict__[k]
key = cache_on_save if isinstance(cache_on_save, basestring) else 'pk'
# Django doesn't allow filters like related_id = 1337.
# So we just hacky strip _id from end of a key
# TODO: make it right, _meta.get_field() should help
filter_key = key[:-3] if key.endswith('_id') else key
cacheoped_as(instance.__class__.objects \
.filter(**{filter_key: getattr(instance, key)}), extra='') \
(lambda: [instance])()
# Reverting stripped attributes
instance.__dict__.update(unwanted_dict)
