from django.shortcuts import get_object_or_404 from boards.models import Tag __author__ = 'neko259' SESSION_SETTING = 'setting' PERMISSION_MODERATE = 'moderator' SETTING_THEME = 'theme' SETTING_FAVORITE_TAGS = 'favorite_tags' SETTING_HIDDEN_TAGS = 'hidden_tags' SETTING_PERMISSIONS = 'permissions' DEFAULT_THEME = 'md' def get_settings_manager(request): """ Get settings manager based on the request object. Currently only session-based manager is supported. In the future, cookie-based or database-based managers could be implemented. """ return SessionSettingsManager(request.session) class SettingsManager: """ Base settings manager class. get_setting and set_setting methods should be overriden. """ def __init__(self): pass def get_theme(self): theme = self.get_setting(SETTING_THEME) if not theme: theme = DEFAULT_THEME self.set_setting(SETTING_THEME, theme) return theme def set_theme(self, theme): self.set_setting(SETTING_THEME, theme) def has_permission(self, permission): permissions = self.get_setting(SETTING_PERMISSIONS) if permissions: return permission in permissions else: return False def get_setting(self, setting): pass def set_setting(self, setting, value): pass def add_permission(self, permission): permissions = self.get_setting(SETTING_PERMISSIONS) if not permissions: permissions = [permission] else: permissions.append(permission) self.set_setting(SETTING_PERMISSIONS, permissions) def del_permission(self, permission): permissions = self.get_setting(SETTING_PERMISSIONS) if not permissions: permissions = [] else: permissions.remove(permission) self.set_setting(SETTING_PERMISSIONS, permissions) def get_fav_tags(self): tag_names = self.get_setting(SETTING_FAVORITE_TAGS) tags = [] if tag_names: for tag_name in tag_names: tag = get_object_or_404(Tag, name=tag_name) tags.append(tag) return tags def add_fav_tag(self, tag): tags = self.get_setting(SETTING_FAVORITE_TAGS) if not tags: tags = [tag.name] else: if not tag.name in tags: tags.append(tag.name) tags.sort() self.set_setting(SETTING_FAVORITE_TAGS, tags) def del_fav_tag(self, tag): tags = self.get_setting(SETTING_FAVORITE_TAGS) if tag.name in tags: tags.remove(tag.name) self.set_setting(SETTING_FAVORITE_TAGS, tags) def get_hidden_tags(self): tag_names = self.get_setting(SETTING_HIDDEN_TAGS) tags = [] if tag_names: for tag_name in tag_names: tag = get_object_or_404(Tag, name=tag_name) tags.append(tag) return tags def add_hidden_tag(self, tag): tags = self.get_setting(SETTING_HIDDEN_TAGS) if not tags: tags = [tag.name] else: if not tag.name in tags: tags.append(tag.name) tags.sort() self.set_setting(SETTING_HIDDEN_TAGS, tags) def del_hidden_tag(self, tag): tags = self.get_setting(SETTING_HIDDEN_TAGS) if tag.name in tags: tags.remove(tag.name) self.set_setting(SETTING_HIDDEN_TAGS, tags) class SessionSettingsManager(SettingsManager): """ Session-based settings manager. All settings are saved to the user's session. """ def __init__(self, session): SettingsManager.__init__(self) self.session = session def get_setting(self, setting): if setting in self.session: return self.session[setting] else: return None def set_setting(self, setting, value): self.session[setting] = value