Use map() in python3 style

boards/models/post.py

@@ -1,347 +1,346 b''
 from datetime import datetime, timedelta, date
 from datetime import time as dtime
 import logging
 import re
 
 from django.core.cache import cache
 from django.core.urlresolvers import reverse
 from django.db import models, transaction
 from django.template.loader import render_to_string
 from django.utils import timezone
 from markupfield.fields import MarkupField
 
 from boards.models import PostImage
 from boards.models.base import Viewable
 from boards.models.thread import 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+)\[/post\]')
 
 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()
             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)
 
         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)
-        for tag in tags:
-            thread.add_tag(tag)
+        list(map(thread.add_tag, tags))
 
         if new_thread:
             Thread.objects.process_oldest_threads()
         self.connect_replies(post)
 
         logger.info('Created post #%d with title %s' % (post.id,
                                                         post.get_title()))
 
         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)