Removed old maintenance module, that was used prior to data migrations. Cleaned up requirements. Minor fix in the tag model

boards/models/tag.py

@@ -1,100 +1,102 b''
 from django.template.loader import render_to_string
 from boards.models import Thread, Post
 from django.db import models
 from django.db.models import Count, Sum
 from django.core.urlresolvers import reverse
 from boards.models.base import Viewable
 
 __author__ = 'neko259'
 
 
 class TagManager(models.Manager):
 
     def get_not_empty_tags(self):
         """
         Gets tags that have non-archived threads.
         """
 
         tags = self.annotate(Count('threads')) \
             .filter(threads__count__gt=0).order_by('name')
 
         return tags
 
 
 class Tag(models.Model, Viewable):
     """
     A tag is a text node assigned to the thread. The tag serves as a board
     section. There can be multiple tags for each thread
     """
 
     objects = TagManager()
 
     class Meta:
         app_label = 'boards'
         ordering = ('name',)
 
     name = models.CharField(max_length=100, db_index=True)
     threads = models.ManyToManyField(Thread, null=True,
                                      blank=True, related_name='tag+')
     linked = models.ForeignKey('Tag', null=True, blank=True)
 
     def __unicode__(self):
         return self.name
 
     def is_empty(self):
         """
         Checks if the tag has some threads.
         """
 
         return self.get_thread_count() == 0
 
     def get_thread_count(self):
         return self.threads.count()
 
     def get_linked_tags(self):
         """
         Gets tags linked to the current one.
         """
 
         tag_list = []
         self.get_linked_tags_list(tag_list)
 
         return tag_list
 
-    def get_linked_tags_list(self, tag_list=[]):
+    def get_linked_tags_list(self, tag_list=None):
         """
         Returns the list of tags linked to current. The list can be got
         through returned value or tag_list parameter
         """
+        if not tag_list:
+            tag_list = []
 
         linked_tag = self.linked
 
         if linked_tag and not (linked_tag in tag_list):
             tag_list.append(linked_tag)
 
             linked_tag.get_linked_tags_list(tag_list)
 
     def get_post_count(self, archived=False):
         """
         Gets posts count for the tag's threads.
         """
 
         posts_count = 0
 
         threads = self.threads.filter(archived=archived)
         if threads.exists():
             posts_count = threads.annotate(posts_count=Count('replies')) \
                 .aggregate(posts_sum=Sum('posts_count'))['posts_sum']
 
         if not posts_count:
             posts_count = 0
 
         return posts_count
 
     def get_url(self):
         return reverse('tag', kwargs={'tag_name': self.name})
 
     def get_view(self, *args, **kwargs):
         return render_to_string('boards/tag.html', {
             'tag': self,
         })

requirements.txt

@@ -1,10 +1,10 b''
+south
 line_profiler
 haystack
 pillow
 django>=1.6
 django_cleanup
 django-markupfield
 markdown
-python-markdown
 django-simple-captcha
 line-profiler