Added 'bumpable' field. Disable thread bump once and for all, not counting it

every time by the post count

boards/migrations/0031_auto__add_field_thread_bumpable.py

@@ -0,0 +1,74 b''
+# -*- coding: utf-8 -*-
+from south.utils import datetime_utils as datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+        # Adding field 'Thread.bumpable'
+        db.add_column('boards_thread', 'bumpable',
+                      self.gf('django.db.models.fields.BooleanField')(default=True),
+                      keep_default=False)
+
+
+    def backwards(self, orm):
+        # Deleting field 'Thread.bumpable'
+        db.delete_column('boards_thread', 'bumpable')
+
+
+    models = {
+        'boards.ban': {
+            'Meta': {'object_name': 'Ban'},
+            'can_read': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'ip': ('django.db.models.fields.GenericIPAddressField', [], {'max_length': '39'}),
+            'reason': ('django.db.models.fields.CharField', [], {'max_length': '200', 'default': "'Auto'"})
+        },
+        'boards.post': {
+            'Meta': {'object_name': 'Post', 'ordering': "('id',)"},
+            '_text_rendered': ('django.db.models.fields.TextField', [], {}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'images': ('django.db.models.fields.related.ManyToManyField', [], {'symmetrical': 'False', 'null': 'True', 'db_index': 'True', 'blank': 'True', 'related_name': "'ip+'", 'to': "orm['boards.PostImage']"}),
+            'last_edit_time': ('django.db.models.fields.DateTimeField', [], {}),
+            'poster_ip': ('django.db.models.fields.GenericIPAddressField', [], {'max_length': '39'}),
+            'poster_user_agent': ('django.db.models.fields.TextField', [], {}),
+            'pub_time': ('django.db.models.fields.DateTimeField', [], {}),
+            'referenced_posts': ('django.db.models.fields.related.ManyToManyField', [], {'symmetrical': 'False', 'null': 'True', 'db_index': 'True', 'blank': 'True', 'related_name': "'rfp+'", 'to': "orm['boards.Post']"}),
+            'refmap': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'text': ('markupfield.fields.MarkupField', [], {'rendered_field': 'True'}),
+            'text_markup_type': ('django.db.models.fields.CharField', [], {'max_length': '30', 'default': "'bbcode'"}),
+            'thread_new': ('django.db.models.fields.related.ForeignKey', [], {'default': 'None', 'null': 'True', 'to': "orm['boards.Thread']"}),
+            'title': ('django.db.models.fields.CharField', [], {'max_length': '200'})
+        },
+        'boards.postimage': {
+            'Meta': {'object_name': 'PostImage', 'ordering': "('id',)"},
+            'hash': ('django.db.models.fields.CharField', [], {'max_length': '36'}),
+            'height': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'image': ('boards.thumbs.ImageWithThumbsField', [], {'max_length': '100', 'blank': 'True'}),
+            'pre_height': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'pre_width': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'width': ('django.db.models.fields.IntegerField', [], {'default': '0'})
+        },
+        'boards.tag': {
+            'Meta': {'object_name': 'Tag', 'ordering': "('name',)"},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'db_index': 'True', 'max_length': '100'}),
+            'threads': ('django.db.models.fields.related.ManyToManyField', [], {'null': 'True', 'symmetrical': 'False', 'blank': 'True', 'related_name': "'tag+'", 'to': "orm['boards.Thread']"})
+        },
+        'boards.thread': {
+            'Meta': {'object_name': 'Thread'},
+            'archived': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'bump_time': ('django.db.models.fields.DateTimeField', [], {}),
+            'bumpable': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'last_edit_time': ('django.db.models.fields.DateTimeField', [], {}),
+            'replies': ('django.db.models.fields.related.ManyToManyField', [], {'null': 'True', 'symmetrical': 'False', 'blank': 'True', 'related_name': "'tre+'", 'to': "orm['boards.Post']"}),
+            'tags': ('django.db.models.fields.related.ManyToManyField', [], {'symmetrical': 'False', 'to': "orm['boards.Tag']"})
+        }
+    }
+
+    complete_apps = ['boards']

boards/migrations/0032_make_not_bumpable.py

@@ -0,0 +1,81 b''
+# -*- coding: utf-8 -*-
+from south.utils import datetime_utils as datetime
+from south.db import db
+from south.v2 import DataMigration
+from django.db import models
+import boards
+
+class Migration(DataMigration):
+
+    def forwards(self, orm):
+        changed_count = 0
+
+        for thread in orm['boards.Thread'].objects.all():
+            if thread.replies.count() >= boards.settings.MAX_POSTS_PER_THREAD:
+                thread.bumpable = False
+                print('Disabled bump on thread {}'.format(thread.id))
+                changed_count += 1
+            else:
+                thread.bumpable = True
+                thread.save(update_fields=['bumpable'])
+
+
+        print('Changed {} threads.'.format(changed_count))
+
+    def backwards(self, orm):
+        "Write your backwards methods here."
+
+    models = {
+        'boards.ban': {
+            'Meta': {'object_name': 'Ban'},
+            'can_read': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'ip': ('django.db.models.fields.GenericIPAddressField', [], {'max_length': '39'}),
+            'reason': ('django.db.models.fields.CharField', [], {'default': "'Auto'", 'max_length': '200'})
+        },
+        'boards.post': {
+            'Meta': {'object_name': 'Post', 'ordering': "('id',)"},
+            '_text_rendered': ('django.db.models.fields.TextField', [], {}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'images': ('django.db.models.fields.related.ManyToManyField', [], {'symmetrical': 'False', 'related_name': "'ip+'", 'null': 'True', 'to': "orm['boards.PostImage']", 'db_index': 'True', 'blank': 'True'}),
+            'last_edit_time': ('django.db.models.fields.DateTimeField', [], {}),
+            'poster_ip': ('django.db.models.fields.GenericIPAddressField', [], {'max_length': '39'}),
+            'poster_user_agent': ('django.db.models.fields.TextField', [], {}),
+            'pub_time': ('django.db.models.fields.DateTimeField', [], {}),
+            'referenced_posts': ('django.db.models.fields.related.ManyToManyField', [], {'symmetrical': 'False', 'related_name': "'rfp+'", 'null': 'True', 'to': "orm['boards.Post']", 'db_index': 'True', 'blank': 'True'}),
+            'refmap': ('django.db.models.fields.TextField', [], {'blank': 'True', 'null': 'True'}),
+            'text': ('markupfield.fields.MarkupField', [], {'rendered_field': 'True'}),
+            'text_markup_type': ('django.db.models.fields.CharField', [], {'default': "'bbcode'", 'max_length': '30'}),
+            'thread_new': ('django.db.models.fields.related.ForeignKey', [], {'default': 'None', 'to': "orm['boards.Thread']", 'null': 'True'}),
+            'title': ('django.db.models.fields.CharField', [], {'max_length': '200'})
+        },
+        'boards.postimage': {
+            'Meta': {'object_name': 'PostImage', 'ordering': "('id',)"},
+            'hash': ('django.db.models.fields.CharField', [], {'max_length': '36'}),
+            'height': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'image': ('boards.thumbs.ImageWithThumbsField', [], {'blank': 'True', 'max_length': '100'}),
+            'pre_height': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'pre_width': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'width': ('django.db.models.fields.IntegerField', [], {'default': '0'})
+        },
+        'boards.tag': {
+            'Meta': {'object_name': 'Tag', 'ordering': "('name',)"},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'db_index': 'True', 'max_length': '100'}),
+            'threads': ('django.db.models.fields.related.ManyToManyField', [], {'symmetrical': 'False', 'null': 'True', 'to': "orm['boards.Thread']", 'related_name': "'tag+'", 'blank': 'True'})
+        },
+        'boards.thread': {
+            'Meta': {'object_name': 'Thread'},
+            'archived': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'bump_time': ('django.db.models.fields.DateTimeField', [], {}),
+            'bumpable': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'last_edit_time': ('django.db.models.fields.DateTimeField', [], {}),
+            'replies': ('django.db.models.fields.related.ManyToManyField', [], {'symmetrical': 'False', 'null': 'True', 'to': "orm['boards.Post']", 'related_name': "'tre+'", 'blank': 'True'}),
+            'tags': ('django.db.models.fields.related.ManyToManyField', [], {'symmetrical': 'False', 'to': "orm['boards.Tag']"})
+        }
+    }
+
+    complete_apps = ['boards']
+    symmetrical = True

boards/models/post.py

@@ -1,417 +1,421 b''
 from datetime import datetime, timedelta, date
 from datetime import time as dtime
 from adjacent import Client
 import logging
 import re
 
 from django.core.cache import cache
 from django.core.urlresolvers import reverse
 from django.db import models, transaction
 from django.shortcuts import get_object_or_404
 from django.template import RequestContext
 from django.template.loader import render_to_string
 from django.utils import timezone
 from markupfield.fields import MarkupField
 from boards import settings
 
 from boards.models import PostImage
 from boards.models.base import Viewable
 from boards.models.thread import Thread
 from boards.utils import datetime_to_epoch
 
 WS_CHANNEL_THREAD = "thread:"
 
 APP_LABEL_BOARDS = 'boards'
 
 CACHE_KEY_PPD = 'ppd'
 CACHE_KEY_POST_URL = 'post_url'
 
 POSTS_PER_DAY_RANGE = 7
 
 BAN_REASON_AUTO = 'Auto'
 
 IMAGE_THUMB_SIZE = (200, 150)
 
 TITLE_MAX_LENGTH = 200
 
 DEFAULT_MARKUP_TYPE = 'bbcode'
 
 # TODO This should be removed
 NO_IP = '0.0.0.0'
 
 # TODO Real user agent should be saved instead of this
 UNKNOWN_UA = ''
 
 REGEX_REPLY = re.compile(r'\[post\](\d+)\[/post\]')
 
 PARAMETER_TRUNCATED = 'truncated'
 PARAMETER_TAG = 'tag'
 PARAMETER_OFFSET = 'offset'
 PARAMETER_DIFF_TYPE = 'type'
 
 DIFF_TYPE_HTML = 'html'
 DIFF_TYPE_JSON = 'json'
 
 logger = logging.getLogger(__name__)
 
 
 class PostManager(models.Manager):
     def create_post(self, title, text, image=None, thread=None, ip=NO_IP,
                     tags=None):
         """
         Creates new post
         """
 
         if not tags:
             tags = []
 
         posting_time = timezone.now()
         if not thread:
             thread = Thread.objects.create(bump_time=posting_time,
                                            last_edit_time=posting_time)
             new_thread = True
         else:
             thread.bump()
             thread.last_edit_time = posting_time
-            thread.save()
+            if thread.can_bump() and (
+                    thread.get_reply_count() >= settings.MAX_POSTS_PER_THREAD):
+                thread.bumpable = False
+            thread.save(update_fields=['last_edit_time', 'bumpable'])
             new_thread = False
 
         post = self.create(title=title,
                            text=text,
                            pub_time=posting_time,
                            thread_new=thread,
                            poster_ip=ip,
                            poster_user_agent=UNKNOWN_UA,  # TODO Get UA at
                            # last!
                            last_edit_time=posting_time)
 
         logger.info('Created post #%d with title "%s"' % (post.id,
                                                         post.title))
 
         if image:
             post_image = PostImage.objects.create(image=image)
             post.images.add(post_image)
             logger.info('Created image #%d for post #%d' % (post_image.id,
                                                             post.id))
 
         thread.replies.add(post)
         list(map(thread.add_tag, tags))
 
         if new_thread:
             Thread.objects.process_oldest_threads()
         self.connect_replies(post)
 
+
         return post
 
     def delete_post(self, post):
         """
         Deletes post and update or delete its thread
         """
 
         post_id = post.id
 
         thread = post.get_thread()
 
         if post.is_opening():
             thread.delete()
         else:
             thread.last_edit_time = timezone.now()
             thread.save()
 
             post.delete()
 
         logger.info('Deleted post #%d (%s)' % (post_id, post.get_title()))
 
     def delete_posts_by_ip(self, ip):
         """
         Deletes all posts of the author with same IP
         """
 
         posts = self.filter(poster_ip=ip)
         for post in posts:
             self.delete_post(post)
 
     def  connect_replies(self, post):
         """
         Connects replies to a post to show them as a reflink map
         """
 
         for reply_number in re.finditer(REGEX_REPLY, post.text.raw):
             post_id = reply_number.group(1)
             ref_post = self.filter(id=post_id)
             if ref_post.count() > 0:
                 referenced_post = ref_post[0]
                 referenced_post.referenced_posts.add(post)
                 referenced_post.last_edit_time = post.pub_time
                 referenced_post.build_refmap()
                 referenced_post.save(update_fields=['refmap', 'last_edit_time'])
 
                 referenced_thread = referenced_post.get_thread()
                 referenced_thread.last_edit_time = post.pub_time
                 referenced_thread.save(update_fields=['last_edit_time'])
 
     def get_posts_per_day(self):
         """
         Gets average count of posts per day for the last 7 days
         """
 
         day_end = date.today()
         day_start = day_end - timedelta(POSTS_PER_DAY_RANGE)
 
         cache_key = CACHE_KEY_PPD + str(day_end)
         ppd = cache.get(cache_key)
         if ppd:
             return ppd
 
         day_time_start = timezone.make_aware(datetime.combine(
             day_start, dtime()), timezone.get_current_timezone())
         day_time_end = timezone.make_aware(datetime.combine(
             day_end, dtime()), timezone.get_current_timezone())
 
         posts_per_period = float(self.filter(
             pub_time__lte=day_time_end,
             pub_time__gte=day_time_start).count())
 
         ppd = posts_per_period / POSTS_PER_DAY_RANGE
 
         cache.set(cache_key, ppd)
         return ppd
 
 
 class Post(models.Model, Viewable):
     """A post is a message."""
 
     objects = PostManager()
 
     class Meta:
         app_label = APP_LABEL_BOARDS
         ordering = ('id',)
 
     title = models.CharField(max_length=TITLE_MAX_LENGTH)
     pub_time = models.DateTimeField()
     text = MarkupField(default_markup_type=DEFAULT_MARKUP_TYPE,
                        escape_html=False)
 
     images = models.ManyToManyField(PostImage, null=True, blank=True,
                                     related_name='ip+', db_index=True)
 
     poster_ip = models.GenericIPAddressField()
     poster_user_agent = models.TextField()
 
     thread_new = models.ForeignKey('Thread', null=True, default=None,
                                    db_index=True)
     last_edit_time = models.DateTimeField()
 
     referenced_posts = models.ManyToManyField('Post', symmetrical=False,
                                               null=True,
                                               blank=True, related_name='rfp+',
                                               db_index=True)
     refmap = models.TextField(null=True, blank=True)
 
     def __unicode__(self):
         return '#' + str(self.id) + ' ' + self.title + ' (' + \
                self.text.raw[:50] + ')'
 
     def get_title(self):
         """
         Gets original post title or part of its text.
         """
 
         title = self.title
         if not title:
             title = self.text.rendered
 
         return title
 
     def build_refmap(self):
         """
         Builds a replies map string from replies list. This is a cache to stop
         the server from recalculating the map on every post show.
         """
         map_string = ''
 
         first = True
         for refpost in self.referenced_posts.all():
             if not first:
                 map_string += ', '
             map_string += '<a href="%s">&gt;&gt;%s</a>' % (refpost.get_url(),
                                                            refpost.id)
             first = False
 
         self.refmap = map_string
 
     def get_sorted_referenced_posts(self):
         return self.refmap
 
     def is_referenced(self):
         return len(self.refmap) > 0
 
     def is_opening(self):
         """
         Checks if this is an opening post or just a reply.
         """
 
         return self.get_thread().get_opening_post_id() == self.id
 
     @transaction.atomic
     def add_tag(self, tag):
         edit_time = timezone.now()
 
         thread = self.get_thread()
         thread.add_tag(tag)
         self.last_edit_time = edit_time
         self.save(update_fields=['last_edit_time'])
 
         thread.last_edit_time = edit_time
         thread.save(update_fields=['last_edit_time'])
 
     @transaction.atomic
     def remove_tag(self, tag):
         edit_time = timezone.now()
 
         thread = self.get_thread()
         thread.remove_tag(tag)
         self.last_edit_time = edit_time
         self.save(update_fields=['last_edit_time'])
 
         thread.last_edit_time = edit_time
         thread.save(update_fields=['last_edit_time'])
 
     def get_url(self, thread=None):
         """
         Gets full url to the post.
         """
 
         cache_key = CACHE_KEY_POST_URL + str(self.id)
         link = cache.get(cache_key)
 
         if not link:
             if not thread:
                 thread = self.get_thread()
 
             opening_id = thread.get_opening_post_id()
 
             if self.id != opening_id:
                 link = reverse('thread', kwargs={
                     'post_id': opening_id}) + '#' + str(self.id)
             else:
                 link = reverse('thread', kwargs={'post_id': self.id})
 
             cache.set(cache_key, link)
 
         return link
 
     def get_thread(self):
         """
         Gets post's thread.
         """
 
         return self.thread_new
 
     def get_referenced_posts(self):
         return self.referenced_posts.only('id', 'thread_new')
 
     def get_text(self):
         return self.text
 
     def get_view(self, moderator=False, need_open_link=False,
                  truncated=False, *args, **kwargs):
         if 'is_opening' in kwargs:
             is_opening = kwargs['is_opening']
         else:
             is_opening = self.is_opening()
 
         if 'thread' in kwargs:
             thread = kwargs['thread']
         else:
             thread = self.get_thread()
 
         if 'can_bump' in kwargs:
             can_bump = kwargs['can_bump']
         else:
             can_bump = thread.can_bump()
 
         if is_opening:
             opening_post_id = self.id
         else:
             opening_post_id = thread.get_opening_post_id()
 
         return render_to_string('boards/post.html', {
             'post': self,
             'moderator': moderator,
             'is_opening': is_opening,
             'thread': thread,
             'bumpable': can_bump,
             'need_open_link': need_open_link,
             'truncated': truncated,
             'opening_post_id': opening_post_id,
         })
 
     def get_first_image(self):
         return self.images.earliest('id')
 
     def delete(self, using=None):
         """
         Deletes all post images and the post itself.
         """
 
         self.images.all().delete()
 
         super(Post, self).delete(using)
 
     def get_post_data(self, format_type=DIFF_TYPE_JSON, request=None,
                       include_last_update=False):
         """
         Gets post HTML or JSON data that can be rendered on a page or used by
         API.
         """
 
         if format_type == DIFF_TYPE_HTML:
             context = RequestContext(request)
             context['post'] = self
             if PARAMETER_TRUNCATED in request.GET:
                 context[PARAMETER_TRUNCATED] = True
 
             return render_to_string('boards/api_post.html', context)
         elif format_type == DIFF_TYPE_JSON:
             post_json = {
                 'id': self.id,
                 'title': self.title,
                 'text': self.text.rendered,
                 }
             if self.images.exists():
                 post_image = self.get_first_image()
                 post_json['image'] = post_image.image.url
                 post_json['image_preview'] = post_image.image.url_200x150
             if include_last_update:
                 post_json['bump_time'] = datetime_to_epoch(
                     self.thread_new.bump_time)
             return post_json
 
     def send_to_websocket(self, request, recursive=True):
         """
         Sends post HTML data to the thread web socket.
         """
 
         if not settings.WEBSOCKETS_ENABLED:
             return
 
         client = Client()
 
         channel_name = WS_CHANNEL_THREAD + str(self.get_thread().get_opening_post_id())
         client.publish(channel_name, {
             'html': self.get_post_data(
                 format_type=DIFF_TYPE_HTML,
                 request=request),
             'diff_type': 'added' if recursive else 'updated',
         })
         client.send()
 
         logger.info('Sent post #{} to channel {}'.format(self.id, channel_name))
 
         if recursive:
             for reply_number in re.finditer(REGEX_REPLY, self.text.raw):
                 post_id = reply_number.group(1)
                 ref_post = Post.objects.filter(id=post_id)[0]
 
-                ref_post.send_to_websocket(request, recursive=False)
  No newline at end of file
+                ref_post.send_to_websocket(request, recursive=False)

boards/models/thread.py

@@ -1,188 +1,185 b''
 import logging
 from django.db.models import Count
 from django.utils import timezone
 from django.core.cache import cache
 from django.db import models
 from boards import settings
 
 __author__ = 'neko259'
 
 
 logger = logging.getLogger(__name__)
 
 
 CACHE_KEY_OPENING_POST = 'opening_post_id'
 
 
 class ThreadManager(models.Manager):
     def process_oldest_threads(self):
         """
          Preserves maximum thread count. If there are too many threads,
          archive or delete the old ones.
          """
 
         threads = Thread.objects.filter(archived=False).order_by('-bump_time')
         thread_count = threads.count()
 
         if thread_count > settings.MAX_THREAD_COUNT:
             num_threads_to_delete = thread_count - settings.MAX_THREAD_COUNT
             old_threads = threads[thread_count - num_threads_to_delete:]
 
             for thread in old_threads:
                 if settings.ARCHIVE_THREADS:
                     self._archive_thread(thread)
                 else:
                     thread.delete()
 
             logger.info('Processed %d old threads' % num_threads_to_delete)
 
     def _archive_thread(self, thread):
         thread.archived = True
+        thread.bumpable = False
         thread.last_edit_time = timezone.now()
-        thread.save(update_fields=['archived', 'last_edit_time'])
+        thread.save(update_fields=['archived', 'last_edit_time', 'bumpable'])
 
 
 class Thread(models.Model):
     objects = ThreadManager()
 
     class Meta:
         app_label = 'boards'
 
     tags = models.ManyToManyField('Tag')
     bump_time = models.DateTimeField()
     last_edit_time = models.DateTimeField()
     replies = models.ManyToManyField('Post', symmetrical=False, null=True,
                                      blank=True, related_name='tre+')
     archived = models.BooleanField(default=False)
+    bumpable = models.BooleanField(default=True)
 
     def get_tags(self):
         """
         Gets a sorted tag list.
         """
 
         return self.tags.order_by('name')
 
     def bump(self):
         """
         Bumps (moves to up) thread if possible.
         """
 
         if self.can_bump():
             self.bump_time = timezone.now()
 
             logger.info('Bumped thread %d' % self.id)
 
     def get_reply_count(self):
         return self.replies.count()
 
     def get_images_count(self):
         # TODO Use sum
         total_count = 0
         for post_with_image in self.replies.annotate(images_count=Count(
                 'images')):
             total_count += post_with_image.images_count
         return total_count
 
     def can_bump(self):
         """
         Checks if the thread can be bumped by replying to it.
         """
 
-        if self.archived:
-            return False
-
-        post_count = self.get_reply_count()
-
-        return post_count < settings.MAX_POSTS_PER_THREAD
+        return self.bumpable
 
     def get_last_replies(self):
         """
         Gets several last replies, not including opening post
         """
 
         if settings.LAST_REPLIES_COUNT > 0:
             reply_count = self.get_reply_count()
 
             if reply_count > 0:
                 reply_count_to_show = min(settings.LAST_REPLIES_COUNT,
                                           reply_count - 1)
                 replies = self.get_replies()
                 last_replies = replies[reply_count - reply_count_to_show:]
 
                 return last_replies
 
     def get_skipped_replies_count(self):
         """
         Gets number of posts between opening post and last replies.
         """
         reply_count = self.get_reply_count()
         last_replies_count = min(settings.LAST_REPLIES_COUNT,
                                  reply_count - 1)
         return reply_count - last_replies_count - 1
 
     def get_replies(self, view_fields_only=False):
         """
         Gets sorted thread posts
         """
 
         query = self.replies.order_by('pub_time').prefetch_related('images')
         if view_fields_only:
             query = query.defer('poster_user_agent', 'text_markup_type')
         return query.all()
 
     def get_replies_with_images(self, view_fields_only=False):
         return self.get_replies(view_fields_only).annotate(images_count=Count(
             'images')).filter(images_count__gt=0)
 
     def add_tag(self, tag):
         """
         Connects thread to a tag and tag to a thread
         """
 
         self.tags.add(tag)
         tag.threads.add(self)
 
     def remove_tag(self, tag):
         self.tags.remove(tag)
         tag.threads.remove(self)
 
     def get_opening_post(self, only_id=False):
         """
         Gets the first post of the thread
         """
 
         query = self.replies.order_by('pub_time')
         if only_id:
             query = query.only('id')
         opening_post = query.first()
 
         return opening_post
 
     def get_opening_post_id(self):
         """
         Gets ID of the first thread post.
         """
 
         cache_key = CACHE_KEY_OPENING_POST + str(self.id)
         opening_post_id = cache.get(cache_key)
         if not opening_post_id:
             opening_post_id = self.get_opening_post(only_id=True).id
             cache.set(cache_key, opening_post_id)
 
         return opening_post_id
 
     def __unicode__(self):
         return str(self.id)
 
     def get_pub_time(self):
         """
         Gets opening post's pub time because thread does not have its own one.
         """
 
         return self.get_opening_post().pub_time
 
     def delete(self, using=None):
         if self.replies.exists():
             self.replies.all().delete()
 
-        super(Thread, self).delete(using)
  No newline at end of file
+        super(Thread, self).delete(using)

boards/static/js/thread_update.js

@@ -1,282 +1,285 b''
 /*
  @licstart  The following is the entire license notice for the
  JavaScript code in this page.
 
 
  Copyright (C) 2013  neko259
 
  The JavaScript code in this page is free software: you can
  redistribute it and/or modify it under the terms of the GNU
  General Public License (GNU GPL) as published by the Free Software
  Foundation, either version 3 of the License, or (at your option)
  any later version.  The code is distributed WITHOUT ANY WARRANTY;
  without even the implied warranty of MERCHANTABILITY or FITNESS
  FOR A PARTICULAR PURPOSE.  See the GNU GPL for more details.
 
  As additional permission under GNU GPL version 3 section 7, you
  may distribute non-source (e.g., minimized or compacted) forms of
  that code without the copy of the GNU GPL normally required by
  section 4, provided you include this license notice and a URL
  through which recipients can access the Corresponding Source.
 
  @licend  The above is the entire license notice
  for the JavaScript code in this page.
  */
 
 var wsUrl = 'ws://localhost:9090/connection/websocket';
 var wsUser = '';
 
 var loading = false;
 var lastUpdateTime = null;
 var unreadPosts = 0;
 
 // Thread ID does not change, can be stored one time
 var threadId = $('div.thread').children('.post').first().attr('id');
 
 function connectWebsocket() {
     var metapanel = $('.metapanel')[0];
 
     var wsHost = metapanel.getAttribute('data-ws-host');
     var wsPort = metapanel.getAttribute('data-ws-port');
 
     if (wsHost.length > 0 && wsPort.length > 0)
     var centrifuge = new Centrifuge({
         "url": 'ws://' + wsHost + ':' + wsPort + "/connection/websocket",
         "project": metapanel.getAttribute('data-ws-project'),
         "user": wsUser,
         "timestamp": metapanel.getAttribute('data-last-update'),
         "token": metapanel.getAttribute('data-ws-token'),
         "debug": false
     });
 
     centrifuge.on('error', function(error_message) {
-        alert("Error connecting to websocket server.");
+        console.log("Error connecting to websocket server.");
+        return false;
     });
 
     centrifuge.on('connect', function() {
         var channelName = 'thread:' + threadId;
         centrifuge.subscribe(channelName, function(message) {
             var postHtml = message.data['html'];
             var isAdded = (message.data['diff_type'] === 'added');
 
             if (postHtml) {
                 updatePost(postHtml, isAdded);
             }
         });
 
         $('#autoupdate').text('[+]');
     });
 
     centrifuge.connect();
+
+    return true;
 }
 
 function updatePost(postHtml, isAdded) {
     // This needs to be set on start because the page is scrolled after posts
     // are added or updated
     var bottom = isPageBottom();
 
     var post = $(postHtml);
 
     var threadPosts = $('div.thread').children('.post');
 
     var lastUpdate = '';
 
     if (isAdded) {
         var lastPost = threadPosts.last();
 
         post.appendTo(lastPost.parent());
 
         updateBumplimitProgress(1);
         showNewPostsTitle(1);
 
         lastUpdate = post.children('.post-info').first()
             .children('.pub_time').first().text();
 
         if (bottom) {
             scrollToBottom();
         }
     } else {
         var postId = post.attr('id');
 
         var oldPost = $('div.thread').children('.post[id=' + postId + ']');
 
         oldPost.replaceWith(post);
     }
 
     processNewPost(post);
     updateMetadataPanel(lastUpdate)
 }
 
 function blink(node) {
     var blinkCount = 2;
 
     var nodeToAnimate = node;
     for (var i = 0; i < blinkCount; i++) {
         nodeToAnimate = nodeToAnimate.fadeTo('fast', 0.5).fadeTo('fast', 1.0);
     }
 }
 
 function isPageBottom() {
     var scroll = $(window).scrollTop() / ($(document).height()
         - $(window).height());
 
     return scroll == 1
 }
 
 function initAutoupdate() {
     connectWebsocket();
 }
 
 function getReplyCount() {
     return $('.thread').children('.post').length
 }
 
 function getImageCount() {
     return $('.thread').find('img').length
 }
 
 function updateMetadataPanel(lastUpdate) {
     var replyCountField = $('#reply-count');
     var imageCountField = $('#image-count');
 
     replyCountField.text(getReplyCount());
     imageCountField.text(getImageCount());
 
     if (lastUpdate !== '') {
         var lastUpdateField = $('#last-update');
         lastUpdateField.text(lastUpdate);
         blink(lastUpdateField);
     }
 
     blink(replyCountField);
     blink(imageCountField);
 }
 
 /**
  * Update bumplimit progress bar
  */
 function updateBumplimitProgress(postDelta) {
     var progressBar = $('#bumplimit_progress');
     if (progressBar) {
         var postsToLimitElement = $('#left_to_limit');
 
         var oldPostsToLimit = parseInt(postsToLimitElement.text());
         var postCount = getReplyCount();
         var bumplimit = postCount - postDelta + oldPostsToLimit;
 
         var newPostsToLimit = bumplimit - postCount;
         if (newPostsToLimit <= 0) {
             $('.bar-bg').remove();
             $('.thread').children('.post').addClass('dead_post');
         } else {
             postsToLimitElement.text(newPostsToLimit);
             progressBar.width((100 - postCount / bumplimit * 100.0) + '%');
         }
     }
 }
 
 var documentOriginalTitle = '';
 /**
  * Show 'new posts' text in the title if the document is not visible to a user
  */
 function showNewPostsTitle(newPostCount) {
     if (document.hidden) {
         if (documentOriginalTitle === '') {
             documentOriginalTitle = document.title;
         }
         unreadPosts = unreadPosts + newPostCount;
         document.title = '[' + unreadPosts + '] ' + documentOriginalTitle;
 
         document.addEventListener('visibilitychange', function() {
             if (documentOriginalTitle !== '') {
                 document.title = documentOriginalTitle;
                 documentOriginalTitle = '';
                 unreadPosts = 0;
             }
 
             document.removeEventListener('visibilitychange', null);
         });
     }
 }
 
 /**
  * Clear all entered values in the form fields
  */
 function resetForm(form) {
     form.find('input:text, input:password, input:file, select, textarea').val('');
     form.find('input:radio, input:checkbox')
              .removeAttr('checked').removeAttr('selected');
     $('.file_wrap').find('.file-thumb').remove();
 }
 
 /**
  * When the form is posted, this method will be run as a callback
  */
 function updateOnPost(response, statusText, xhr, form) {
     var json = $.parseJSON(response);
     var status = json.status;
 
     showAsErrors(form, '');
 
     if (status === 'ok') {
         resetForm(form);
     } else {
         var errors = json.errors;
         for (var i = 0; i < errors.length; i++) {
             var fieldErrors = errors[i];
 
             var error = fieldErrors.errors;
 
             showAsErrors(form, error);
         }
     }
 
     scrollToBottom();
 }
 
 /**
  * Show text in the errors row of the form.
  * @param form
  * @param text
  */
 function showAsErrors(form, text) {
     form.children('.form-errors').remove();
 
     if (text.length > 0) {
         var errorList = $('<div class="form-errors">' + text
             + '<div>');
         errorList.appendTo(form);
     }
 }
 
 /**
  * Run js methods that are usually run on the document, on the new post
  */
 function processNewPost(post) {
     addRefLinkPreview(post[0]);
     highlightCode(post);
     blink(post);
 }
 
 $(document).ready(function(){
     if ('WebSocket' in window) {
-        initAutoupdate();
+        if (initAutoupdate()) {
+            // Post form data over AJAX
+            var threadId = $('div.thread').children('.post').first().attr('id');
 
-        // Post form data over AJAX
-        var threadId = $('div.thread').children('.post').first().attr('id');
-
-        var form = $('#form');
+            var form = $('#form');
 
-        var options = {
-            beforeSubmit: function(arr, $form, options) {
-                showAsErrors($('form'), gettext('Sending message...'));
-            },
-            success: updateOnPost,
-            url: '/api/add_post/' + threadId + '/'
-        };
+            var options = {
+                beforeSubmit: function(arr, $form, options) {
+                    showAsErrors($('form'), gettext('Sending message...'));
+                },
+                success: updateOnPost,
+                url: '/api/add_post/' + threadId + '/'
+            };
 
-        form.ajaxForm(options);
+            form.ajaxForm(options);
 
-        resetForm(form);
+            resetForm(form);
+        }
     }
 });