forum/actions/meta.py

   1 from django.utils.translation import ugettext as _\r
   2 from django.db.models import F\r
   3 from forum.models.action import ActionProxy, DummyActionProxy\r
   4 from forum.models import Vote, Flag\r
   5 from forum import settings\r
   6 \r
   7 class VoteAction(ActionProxy):\r
   8     def update_node_score(self, inc):\r
   9         self.node.score = F('score') + inc\r
  10         self.node.save()\r
  11 \r
  12     def process_vote_action(self, value):\r
  13         self.update_node_score(value)\r
  14         vote = Vote(node=self.node, user=self.user, action=self, value=value)\r
  15         vote.save()\r
  16 \r
  17     def cancel_action(self):\r
  18         vote = self.vote\r
  19         self.update_node_score(-vote.value)\r
  20         vote.delete()\r
  21 \r
  22     @classmethod\r
  23     def get_for(cls, user, node):\r
  24         try:\r
  25             vote = Vote.objects.get(user=user, node=node)\r
  26             return vote.value\r
  27         except:\r
  28             return None\r
  29 \r
  30     @classmethod\r
  31     def get_action_for(cls, user, node):\r
  32         try:\r
  33             vote = Vote.objects.get(user=user, node=node)\r
  34             return vote.action\r
  35         except:\r
  36             return None\r
  37 \r
  38     def describe_vote(self, vote_desc, viewer=None):\r
  39         return _("%(user)s %(vote_desc)s %(post_desc)s") % {\r
  40             'user': self.hyperlink(self.user.get_profile_url(), self.friendly_username(viewer, self.user)),\r
  41             'vote_desc': vote_desc, 'post_desc': self.describe_node(viewer, self.node)\r
  42         }\r
  43 \r
  44 \r
  45 class VoteUpAction(VoteAction):\r
  46     def repute_users(self):\r
  47         self.repute(self.node.author, int(settings.REP_GAIN_BY_UPVOTED))\r
  48 \r
  49     def process_action(self):\r
  50         self.process_vote_action(1)\r
  51         self.user.reset_vote_up_count_cache()\r
  52 \r
  53     def cancel_action(self):\r
  54         super(VoteUpAction, self).cancel_action()\r
  55         self.user.reset_vote_up_count_cache()\r
  56 \r
  57     def describe(self, viewer=None):\r
  58         return self.describe_vote(_("voted up"), viewer)\r
  59 \r
  60 class VoteDownAction(VoteAction):\r
  61     def repute_users(self):\r
  62         self.repute(self.node.author, -int(settings.REP_LOST_BY_DOWNVOTED))\r
  63         self.repute(self.user, -int(settings.REP_LOST_BY_DOWNVOTING))\r
  64 \r
  65     def process_action(self):\r
  66         self.process_vote_action(-1)\r
  67         self.user.reset_vote_down_count_cache()\r
  68 \r
  69     def cancel_action(self):\r
  70         super(VoteDownAction, self).cancel_action()\r
  71         self.user.reset_vote_down_count_cache()\r
  72 \r
  73     def describe(self, viewer=None):\r
  74         return self.describe_vote(_("voted down"), viewer)\r
  75 \r
  76 \r
  77 class VoteUpCommentAction(VoteUpAction):\r
  78     def repute_users(self):\r
  79         pass\r
  80 \r
  81     def process_action(self):\r
  82         self.process_vote_action(1)\r
  83 \r
  84     def cancel_action(self):\r
  85         super(VoteUpAction, self).cancel_action()\r
  86 \r
  87     def describe(self, viewer=None):\r
  88         return self.describe_vote(_("liked"), viewer)\r
  89 \r
  90 \r
  91 class FlagAction(ActionProxy):\r
  92     def repute_users(self):\r
  93         self.repute(self.node.author, -int(settings.REP_LOST_BY_FLAGGED))\r
  94 \r
  95     def process_action(self):\r
  96         flag = Flag(user=self.user, node=self.node, action=self, reason=self.extra)\r
  97         flag.save()\r
  98         self.node.reset_flag_count_cache()\r
  99 \r
 100         if self.node.flag_count >= int(settings.FLAG_COUNT_TO_HIDE_POST):\r
 101             self.repute(self.node.author, -int(settings.REP_LOST_BY_FLAGGED_3_TIMES))\r
 102 \r
 103         if self.node.flag_count >= int(settings.FLAG_COUNT_TO_DELETE_POST):\r
 104             self.repute(self.node.author, -int(settings.REP_LOST_BY_FLAGGED_5_TIMES))\r
 105             if not self.node.nis.deleted:\r
 106                 DeleteAction(node=self.node, user=self.user, extra="BYFLAGGED").save()\r
 107 \r
 108     def cancel_action(self):\r
 109         self.flag.delete()\r
 110         self.node.reset_flag_count_cache()\r
 111 \r
 112     @classmethod\r
 113     def get_for(cls, user, node):\r
 114         try:\r
 115             flag = Flag.objects.get(user=user, node=node)\r
 116             return flag.reason or _("No reason given")\r
 117         except:\r
 118             return None\r
 119 \r
 120     def describe(self, viewer=None):\r
 121         return _("%(user)s flagged %(post_desc)s: %(reason)s") % {\r
 122             'user': self.hyperlink(self.user.get_profile_url(), self.friendly_username(viewer, self.user)),\r
 123             'post_desc': self.describe_node(viewer, self.node), 'reason': self.extra\r
 124         }\r
 125 \r
 126 \r
 127 class AcceptAnswerAction(ActionProxy):\r
 128     def repute_users(self):\r
 129         if (self.user == self.node.parent.author) and (not self.user == self.node.author):\r
 130             self.repute(self.user, int(settings.REP_GAIN_BY_ACCEPTING))\r
 131 \r
 132         if self.user != self.node.author:\r
 133             self.repute(self.node.author, int(settings.REP_GAIN_BY_ACCEPTED))\r
 134 \r
 135     def process_action(self):\r
 136         self.node.marked = True\r
 137         self.node.nstate.accepted = self\r
 138         self.node.save()\r
 139         self.node.question.reset_accepted_count_cache()\r
 140 \r
 141     def cancel_action(self):\r
 142         self.node.marked = False\r
 143         self.node.nstate.accepted = None\r
 144         self.node.save()\r
 145         self.node.question.reset_accepted_count_cache()\r
 146 \r
 147     def describe(self, viewer=None):\r
 148         answer = self.node\r
 149         question = answer.parent\r
 150 \r
 151         if self.user == question.author:\r
 152             asker = (self.user == viewer) and _("your") or _("his")\r
 153         else:\r
 154             asker = self.hyperlink(question.author.get_profile_url(), question.author.username)\r
 155 \r
 156         return _("%(user)s accepted %(answerer)s answer on %(asker)s question %(question)s") % {\r
 157             'user': self.hyperlink(self.user.get_profile_url(), self.friendly_username(viewer, self.user)),\r
 158             'answerer': self.hyperlink(answer.author.get_profile_url(), self.friendly_ownername(viewer, answer.author)),\r
 159             'asker': asker,\r
 160             'question': self.hyperlink(question.get_absolute_url(), question.title)\r
 161         }\r
 162 \r
 163 \r
 164 class FavoriteAction(ActionProxy):\r
 165     def process_action(self):\r
 166         self.node.reset_favorite_count_cache()\r
 167 \r
 168     def cancel_action(self):\r
 169         self.process_action()\r
 170 \r
 171     def describe(self, viewer=None):\r
 172         return _("%(user)s marked %(post_desc)s as favorite") % {\r
 173             'user': self.hyperlink(self.user.get_profile_url(), self.friendly_username(viewer, self.user)),\r
 174             'post_desc': self.describe_node(viewer, self.node),\r
 175         }\r
 176 \r
 177 \r
 178 class DeleteAction(ActionProxy):\r
 179     def process_action(self):\r
 180         self.node.mark_deleted(self)\r
 181         \r
 182         if self.node.node_type == "answer":\r
 183             self.node.question.reset_answer_count_cache()\r
 184 \r
 185         # We should notify the current user that the node has been successfully deleted\r
 186         message = _("The <a href=\"%s\">%s</a> has been sucessfully deleted") % (self.node.get_absolute_url(), self.node.node_type)\r
 187         self.user.message_set.create(message=message)\r
 188 \r
 189     def cancel_action(self):\r
 190         self.node.mark_deleted(None)\r
 191 \r
 192         if self.node.node_type == "answer":\r
 193             self.node.question.reset_answer_count_cache()\r
 194 \r
 195     def describe(self, viewer=None):\r
 196         return _("%(user)s deleted %(post_desc)s") % {\r
 197             'user': self.hyperlink(self.user.get_profile_url(), self.friendly_username(viewer, self.user)),\r
 198             'post_desc': self.describe_node(viewer, self.node)\r
 199         }\r
 200 \r
 201     def reason(self):\r
 202         if self.extra != "BYFLAGGED":\r
 203             return self.extra\r
 204         else:\r
 205             return _("flagged by multiple users: ") + "; ".join([f.extra for f in FlagAction.objects.filter(node=self.node)])\r
 206 \r
 207 class UnknownAction(ActionProxy):\r
 208     pass\r
 209 \r
 210 \r
 211 class QuestionViewAction(DummyActionProxy):\r
 212     def __init__(self, node, user, ip=None):\r
 213         self.viewuser = user\r
 214         self.node = node\r
 215         super(QuestionViewAction, self).__init__(ip)\r
 216 \r
 217     def process_action(self):\r
 218         self.node.extra_count = F('extra_count') + 1\r
 219         self.node.save()\r