forum/templatetags/node_tags.py

   1 from datetime import datetime, timedelta\r
   2 import re\r
   3 \r
   4 from forum.models import Question, Action\r
   5 from django.template import Template, Context\r
   6 from django.utils.translation import ungettext, ugettext as _\r
   7 from django.utils.html import strip_tags\r
   8 from django.utils.encoding import smart_unicode\r
   9 from django.utils.safestring import mark_safe\r
  10 from django.conf import settings as django_settings\r
  11 from django.core.urlresolvers import reverse\r
  12 from django import template\r
  13 from forum.actions import *\r
  14 from forum import settings\r
  15 \r
  16 register = template.Library()\r
  17 \r
  18 @register.inclusion_tag('node/vote_buttons.html')\r
  19 def vote_buttons(post, user):\r
  20     context = dict(post=post, user_vote='none')\r
  21 \r
  22     if user.is_authenticated():\r
  23         context['user_vote'] = {1: 'up', -1: 'down', None: 'none'}[VoteAction.get_for(user, post)]\r
  24 \r
  25     return context\r
  26 \r
  27 @register.inclusion_tag('node/accept_button.html')\r
  28 def accept_button(answer, user):\r
  29     if not settings.DISABLE_ACCEPTING_FEATURE:\r
  30         return {\r
  31             'can_accept': user.is_authenticated() and user.can_accept_answer(answer),\r
  32             'answer': answer,\r
  33             'user': user\r
  34         }\r
  35     else:\r
  36         return ''\r
  37 \r
  38 @register.inclusion_tag('node/wiki_symbol.html')\r
  39 def wiki_symbol(user, post):\r
  40     context = {\r
  41         'is_wiki': post.nis.wiki,\r
  42         'post_type': post.friendly_name\r
  43     }\r
  44 \r
  45     if post.nis.wiki:\r
  46         if user.can_edit_post(post):\r
  47             context['can_edit'] = True\r
  48             context['edit_url'] = reverse('edit_' + post.node_type, kwargs={'id': post.id})\r
  49         context['by'] = post.nstate.wiki.by.username\r
  50         context['at'] = post.nstate.wiki.at\r
  51 \r
  52     return context\r
  53 \r
  54 @register.inclusion_tag('node/favorite_mark.html')\r
  55 def favorite_mark(question, user):\r
  56     try:\r
  57         FavoriteAction.objects.get(canceled=False, node=question, user=user)\r
  58         favorited = True\r
  59     except:\r
  60         favorited = False\r
  61 \r
  62     return {'favorited': favorited, 'favorite_count': question.favorite_count, 'question': question}\r
  63 \r
  64 @register.simple_tag\r
  65 def post_classes(post):\r
  66     classes = []\r
  67 \r
  68     if post.nis.deleted:\r
  69         classes.append('deleted')\r
  70 \r
  71     if post.node_type == "answer":\r
  72         if (not settings.DISABLE_ACCEPTING_FEATURE) and post.nis.accepted:\r
  73             classes.append('accepted-answer')\r
  74 \r
  75         if post.author == post.question.author:\r
  76             classes.append('answered-by-owner')\r
  77 \r
  78     return " ".join(classes)\r
  79 \r
  80 def post_control(text, url, command=False, withprompt=False, confirm=False, title="", copy=False):\r
  81     classes = (command and "ajax-command" or " ") + (withprompt and " withprompt" or " ") + (confirm and " confirm" or " ") + \\r
  82         (copy and " copy" or " ")\r
  83     return {'text': text, 'url': url, 'classes': classes, 'title': title}\r
  84 \r
  85 \r
  86 moderation_enabled = False\r
  87 for m in django_settings.MODULE_LIST:\r
  88     if m.__name__.endswith('moderation'):\r
  89         moderation_enabled = True\r
  90 \r
  91 @register.inclusion_tag('node/post_controls.html' if not moderation_enabled else "modules/moderation/node/post_controls.html")\r
  92 def post_controls(post, user):\r
  93     controls = []\r
  94     menu = []\r
  95     post_type = post.node_type\r
  96 \r
  97     # We show the link tool if the post is an Answer. It is visible to Guests too.\r
  98     if post_type == "answer":\r
  99         # Answer permanent link tool\r
 100         controls.append(post_control(_('permanent link'), reverse('answer_permanent_link', kwargs={'id' : post.id,}),\r
 101                                      title=_("answer permanent link"), command=True, withprompt=True, copy=True))\r
 102 \r
 103         # Users should be able to award points for an answer. Users cannot award their own answers\r
 104         if user != post.author and user.is_authenticated():\r
 105             controls.append(post_control(_("award points"), reverse('award_points', kwargs={'user_id' : post.author.id,\r
 106                                          'answer_id' : post.id}), title=_("award points to %s") % smart_unicode(post.author.username),\r
 107                                          command=True, withprompt=True))\r
 108 \r
 109     # The other controls are visible only to authenticated users.\r
 110     if user.is_authenticated():\r
 111         try:\r
 112             edit_url = reverse('edit_' + post_type, kwargs={'id': post.id})\r
 113             if user.can_edit_post(post):\r
 114                 controls.append(post_control(_('edit'), edit_url))\r
 115             elif post_type == 'question' and user.can_retag_questions():\r
 116                 controls.append(post_control(_('retag'), edit_url))\r
 117         except:\r
 118             pass\r
 119 \r
 120         if post_type == 'question':\r
 121             if post.nis.closed and user.can_reopen_question(post):\r
 122                 controls.append(post_control(_('reopen'), reverse('reopen', kwargs={'id': post.id}), command=True))\r
 123             elif not post.nis.closed and user.can_close_question(post):\r
 124                 controls.append(post_control(_('close'), reverse('close', kwargs={'id': post.id}), command=True, withprompt=True))\r
 125 \r
 126         if user.can_flag_offensive(post):\r
 127             label = _('report')\r
 128             \r
 129             if user.can_view_offensive_flags(post):\r
 130                 label =  "%s (%d)" % (label, post.flag_count)\r
 131 \r
 132             controls.append(post_control(label, reverse('flag_post', kwargs={'id': post.id}),\r
 133                     command=True, withprompt=True, title=_("report as offensive (i.e containing spam, advertising, malicious text, etc.)")))\r
 134 \r
 135         if user.can_delete_post(post):\r
 136             if post.nis.deleted:\r
 137                 controls.append(post_control(_('undelete'), reverse('delete_post', kwargs={'id': post.id}),\r
 138                         command=True, confirm=True))\r
 139             else:\r
 140                 controls.append(post_control(_('delete'), reverse('delete_post', kwargs={'id': post.id}),\r
 141                         command=True, confirm=True))\r
 142 \r
 143         if user.can_delete_post(post):\r
 144             menu.append(post_control(_('see revisions'),\r
 145                         reverse('revisions',\r
 146                         kwargs={'id': post.id}),\r
 147                         command=False, confirm=False))\r
 148 \r
 149         if settings.WIKI_ON:\r
 150             if (not post.nis.wiki) and user.can_wikify(post):\r
 151                 menu.append(post_control(_('mark as community wiki'), reverse('wikify', kwargs={'id': post.id}),\r
 152                             command=True, confirm=True))\r
 153 \r
 154             elif post.nis.wiki and user.can_cancel_wiki(post):\r
 155                 menu.append(post_control(_('cancel community wiki'), reverse('wikify', kwargs={'id': post.id}),\r
 156                             command=True, confirm=True))\r
 157 \r
 158         if post.node_type == "answer" and user.can_convert_to_comment(post):\r
 159             menu.append(post_control(_('convert to comment'), reverse('convert_to_comment', kwargs={'id': post.id}),\r
 160                         command=True, withprompt=True))\r
 161         \r
 162         if post.node_type == "answer" and user.can_convert_to_question(post):\r
 163             menu.append(post_control(_('convert to question'), reverse('convert_to_question', kwargs={'id': post.id}),\r
 164                         command=False, confirm=True))\r
 165 \r
 166         if user.is_superuser or user.is_staff:\r
 167             plain_text = strip_tags(post.html)\r
 168 \r
 169             char_count = len(plain_text)\r
 170             fullStr = plain_text + " "\r
 171             left_trimmedStr = re.sub(re.compile(r"^[^\w]+", re.IGNORECASE), "", fullStr)\r
 172             cleanedStr = re.sub(re.compile(r"[^\w]+", re.IGNORECASE), " ", left_trimmedStr)\r
 173             splitString = cleanedStr.split(" ")\r
 174             word_count = len(splitString) - 1\r
 175 \r
 176             metrics = mark_safe("<b>%s %s / %s %s</b>" % (char_count, ungettext('character', 'characters', char_count),\r
 177                                         word_count, ungettext('word', 'words', word_count)))\r
 178 \r
 179             menu.append(post_control(metrics, "#", command=False, withprompt=False))\r
 180 \r
 181     return {'controls': controls, 'menu': menu, 'post': post, 'user': user}\r
 182 \r
 183 @register.inclusion_tag('node/comments.html')\r
 184 def comments(post, user):\r
 185     all_comments = post.comments.filter_state(deleted=False).order_by('-added_at')\r
 186 \r
 187     if len(all_comments) <= 5:\r
 188         top_scorers = all_comments\r
 189     else:\r
 190         top_scorers = sorted(all_comments, lambda c1, c2: cmp(c2.score, c1.score))[0:5]\r
 191 \r
 192     comments = []\r
 193     showing = 0\r
 194     for c in all_comments:\r
 195         context = {\r
 196             'can_delete': user.can_delete_comment(c),\r
 197             'can_like': user.can_like_comment(c),\r
 198             'can_edit': user.can_edit_comment(c),\r
 199             'can_convert': user.can_convert_comment_to_answer(c)\r
 200         }\r
 201 \r
 202         if c in top_scorers or c.is_reply_to(user):\r
 203             context['top_scorer'] = True\r
 204             showing += 1\r
 205         \r
 206         if context['can_like']:\r
 207             context['likes'] = VoteAction.get_for(user, c) == 1\r
 208 \r
 209         context['user'] = c.user\r
 210         context['comment'] = c.comment\r
 211         context.update(dict(c.__dict__))\r
 212         comments.append(context)\r
 213 \r
 214     # Generate canned comments\r
 215     canned_comments = []\r
 216     for comment in settings.CANNED_COMMENTS:\r
 217         t = Template(smart_unicode(comment))\r
 218         c = Context({\r
 219             'post' : post,\r
 220             'settings' : settings,\r
 221         })\r
 222         canned_comments.append(t.render(c))\r
 223 \r
 224     return {\r
 225         'comments': comments,\r
 226         'canned_comments': canned_comments,\r
 227         'post': post,\r
 228         'can_comment': user.can_comment(post),\r
 229         'max_length': settings.FORM_MAX_COMMENT_BODY,\r
 230         'min_length': settings.FORM_MIN_COMMENT_BODY,\r
 231         'show_gravatar': settings.FORM_GRAVATAR_IN_COMMENTS,\r
 232         'showing': showing,\r
 233         'total': len(all_comments),\r
 234         'user': user,\r
 235     }\r
 236 \r
 237 \r
 238 @register.inclusion_tag("node/contributors_info.html")\r
 239 def contributors_info(node, verb=None):\r
 240     return {\r
 241         'node_verb': verb and verb or ((node.node_type == "question") and _("asked") or (\r
 242                     (node.node_type == "answer") and _("answered") or _("posted"))),\r
 243         'node': node,\r
 244     }\r
 245 \r
 246 @register.inclusion_tag("node/reviser_info.html")\r
 247 def reviser_info(revision):\r
 248     return {'revision': revision}\r