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import boards
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from boards.models import Tag, TagAlias, Attachment
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from boards.models.attachment import AttachmentSticker
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from boards.models.user import UserSettings
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MAX_TRIPCODE_COLLISIONS = 50
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__author__ = 'neko259'
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SESSION_SETTING = 'setting'
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SETTING_THEME = 'theme'
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SETTING_FAVORITE_TAGS = 'favorite_tags'
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SETTING_FAVORITE_THREADS = 'favorite_threads'
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SETTING_HIDDEN_TAGS = 'hidden_tags'
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SETTING_USERNAME = 'username'
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SETTING_LAST_NOTIFICATION_ID = 'last_notification'
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SETTING_IMAGE_VIEWER = 'image_viewer'
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SETTING_IMAGES = 'images_aliases'
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SETTING_ONLY_FAVORITES = 'only_favorites'
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SETTING_LAST_POSTS = 'last_posts'
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DEFAULT_THEME = 'md'
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class SettingsManager:
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"""
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Base settings manager class. get_setting and set_setting methods should
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be overriden.
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"""
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def __init__(self):
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pass
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def get_theme(self) -> str:
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theme = self.get_setting(SETTING_THEME)
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if not theme:
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theme = DEFAULT_THEME
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self.set_setting(SETTING_THEME, theme)
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return theme
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def set_theme(self, theme):
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self.set_setting(SETTING_THEME, theme)
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def get_setting(self, setting, default=None):
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pass
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def set_setting(self, setting, value):
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pass
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def get_fav_tags(self) -> list:
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tag_names = self.get_setting(SETTING_FAVORITE_TAGS)
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tags = []
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if tag_names:
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tags = list(Tag.objects.filter(aliases__in=TagAlias.objects
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.filter_localized(parent__aliases__name__in=tag_names))
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.order_by('aliases__name'))
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return tags
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def add_fav_tag(self, tag):
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tags = self.get_setting(SETTING_FAVORITE_TAGS)
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if not tags:
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tags = [tag.get_name()]
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else:
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if not tag.get_name() in tags:
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tags.append(tag.get_name())
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tags.sort()
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self.set_setting(SETTING_FAVORITE_TAGS, tags)
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def del_fav_tag(self, tag):
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tags = self.get_setting(SETTING_FAVORITE_TAGS)
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if tag.get_name() in tags:
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tags.remove(tag.get_name())
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self.set_setting(SETTING_FAVORITE_TAGS, tags)
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def get_hidden_tags(self) -> list:
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tag_names = self.get_setting(SETTING_HIDDEN_TAGS)
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tags = []
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if tag_names:
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tags = list(Tag.objects.filter(aliases__in=TagAlias.objects
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.filter_localized(parent__aliases__name__in=tag_names))
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.order_by('aliases__name'))
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return tags
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def add_hidden_tag(self, tag):
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tags = self.get_setting(SETTING_HIDDEN_TAGS)
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if not tags:
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tags = [tag.get_name()]
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else:
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if not tag.get_name() in tags:
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tags.append(tag.get_name())
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tags.sort()
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self.set_setting(SETTING_HIDDEN_TAGS, tags)
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def del_hidden_tag(self, tag):
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tags = self.get_setting(SETTING_HIDDEN_TAGS)
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if tag.get_name() in tags:
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tags.remove(tag.get_name())
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self.set_setting(SETTING_HIDDEN_TAGS, tags)
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def add_or_read_fav_thread(self, opening_post):
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last_post_ids = self.get_setting(SETTING_LAST_POSTS)
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if not last_post_ids:
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last_post_ids = []
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self.del_fav_thread(opening_post)
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last_post_id = opening_post.get_thread().get_replies().last().id
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last_post_ids.append(last_post_id)
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self.set_setting(SETTING_LAST_POSTS, last_post_ids)
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def del_fav_thread(self, opening_post):
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last_posts_ids = self.get_setting(SETTING_LAST_POSTS)
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for post in self.get_last_posts():
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if post.get_thread() == opening_post.get_thread():
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last_posts_ids.remove(post.id)
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self.set_setting(SETTING_LAST_POSTS, last_posts_ids)
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def thread_is_fav(self, opening_post):
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for post in self.get_last_posts():
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if post.get_thread() == opening_post.get_thread():
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return True
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return False
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def get_notification_usernames(self):
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names = set()
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name_list = self.get_setting(SETTING_USERNAME)
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if name_list is not None:
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name_list = name_list.strip()
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if len(name_list) > 0:
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names = name_list.lower().split(',')
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names = set(name.strip() for name in names)
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return names
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def get_attachment_by_alias(self, alias):
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images = self.get_setting(SETTING_IMAGES)
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if images and alias in images:
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try:
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return Attachment.objects.get(id=images.get(alias))
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except Attachment.DoesNotExist:
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self.remove_attachment_alias(alias)
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def add_attachment_alias(self, alias, attachment):
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images = self.get_setting(SETTING_IMAGES)
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if images is None:
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images = dict()
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images[alias] = attachment.id
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self.set_setting(SETTING_IMAGES, images)
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def remove_attachment_alias(self, alias):
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images = self.get_setting(SETTING_IMAGES)
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del images[alias]
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self.set_setting(SETTING_IMAGES, images)
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def get_stickers(self):
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images = self.get_setting(SETTING_IMAGES)
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stickers = []
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if images:
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for key, value in images.items():
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try:
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attachment = Attachment.objects.get(id=value)
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stickers.append(AttachmentSticker(name=key, attachment=attachment))
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except Attachment.DoesNotExist:
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self.remove_attachment_alias(key)
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return stickers
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def tag_is_fav(self, tag):
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fav_tag_names = self.get_setting(SETTING_FAVORITE_TAGS)
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return fav_tag_names is not None and tag.get_name() in fav_tag_names
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def tag_is_hidden(self, tag):
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hidden_tag_names = self.get_setting(SETTING_HIDDEN_TAGS)
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return hidden_tag_names is not None and tag.get_name() in hidden_tag_names
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def get_last_posts(self):
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post_ids = self.get_setting(SETTING_LAST_POSTS) or []
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return list(boards.models.Post.objects.filter(id__in=post_ids).order_by('thread__id'))
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class SessionSettingsManager(SettingsManager):
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"""
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Session-based settings manager. All settings are saved to the user's
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session.
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"""
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def __init__(self, session):
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SettingsManager.__init__(self)
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self.session = session
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def get_setting(self, setting, default=None):
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if setting in self.session:
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return self.session[setting]
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else:
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self.set_setting(setting, default)
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return default
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def set_setting(self, setting, value):
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self.session[setting] = value
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class DatabaseSettingsManager(SessionSettingsManager):
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def __init__(self, session):
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super().__init__(session)
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# First time a user accesses the server, his session is not saved
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# and does not have the key yet. In order to create the settings object
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# we need to save it manually
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if not session.session_key:
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session.save()
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self.settings, created = UserSettings.objects.get_or_create(session_key=session.session_key)
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def add_fav_tag(self, tag):
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self.settings.fav_tags.add(tag)
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def del_fav_tag(self, tag):
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self.settings.fav_tags.remove(tag)
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def get_fav_tags(self) -> list:
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return self.settings.fav_tags.filter(
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aliases__in=TagAlias.objects.filter_localized())\
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.order_by('aliases__name')
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def get_hidden_tags(self) -> list:
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return self.settings.hidden_tags.all()
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def add_hidden_tag(self, tag):
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self.settings.hidden_tags.add(tag)
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def del_hidden_tag(self, tag):
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self.settings.hidden_tags.remove(tag)
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def tag_is_fav(self, tag):
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return self.settings.fav_tags.filter(id=tag.id).exists()
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def tag_is_hidden(self, tag):
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return self.settings.hidden_tags.filter(id=tag.id).exists()
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def get_settings_manager(request) -> SettingsManager:
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"""
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Get settings manager based on the request object. Currently database-based
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settings manager is implemented over the session-based one (settings that
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are not connected to the database in any way are stored in session). Pure
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session-based manager is also supported but not used by default.
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"""
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return DatabaseSettingsManager(request.session)
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