catalogue/templatetags/catalogue_tags.py

   1 from django import template
   2 from django.utils.datastructures import SortedDict
   3 from ..models import Lesson, Section
   4 from librarian.dcparser import WLURI, Person
   5
   6 register = template.Library()
   7
   8
   9 @register.inclusion_tag("catalogue/snippets/carousel.html")
  10 def catalogue_carousel():
  11     lessons_count = Lesson.objects.filter(type__in=('course', 'synthetic')).count()
  12     if 1 < lessons_count % 10 < 5 and lessons_count / 10 % 10 != 1:
  13         lessons_desc = u'kompletne lekcje'
  14     else:
  15         lessons_desc = u'kompletnych lekcji'
  16     return locals()
  17
  18 @register.inclusion_tag("catalogue/snippets/section_buttons.html")
  19 def catalogue_section_buttons():
  20     return {
  21         "object_list": Section.objects.all()
  22     }
  23
  24 @register.inclusion_tag("catalogue/snippets/section_box.html")
  25 def section_box(section):
  26     lessons = SortedDict()
  27     lesson_lists = [alist for alist in [
  28         list(section.lesson_set.all()),
  29         list(section.lessonstub_set.all())
  30     ] if alist]
  31     while lesson_lists:
  32         min_index, min_list = min(enumerate(lesson_lists), key=lambda x: x[1][0].order)
  33         lesson = min_list.pop(0)
  34         if not min_list:
  35             lesson_lists.pop(min_index)
  36
  37         if lesson.level not in lessons:
  38             newdict = SortedDict()
  39             newdict['synthetic'] = []
  40             newdict['course'] = []
  41             lessons[lesson.level] = newdict
  42         if lesson.type not in lessons[lesson.level]:
  43             lessons[lesson.level][lesson.type] = []
  44         lessons[lesson.level][lesson.type].append(lesson)
  45     return {
  46         "section": section,
  47         "lessons": lessons,
  48     }
  49
  50 @register.inclusion_tag("catalogue/snippets/lesson_nav.html")
  51 def lesson_nav(lesson):
  52     if lesson.type == 'course':
  53         root = lesson.section
  54         siblings = Lesson.objects.filter(type='course', level=lesson.level, section=root)
  55         mark_level = False
  56         link_other_level = True
  57     else:
  58         root = None
  59         siblings = Lesson.objects.filter(type=lesson.type)
  60         mark_level = link_other_level = lesson.type == 'course'
  61     return {
  62         "lesson": lesson,
  63         "root": root,
  64         "siblings": siblings,
  65         "mark_level": mark_level
  66     }
  67
  68 @register.inclusion_tag("catalogue/snippets/lesson_link.html")
  69 def lesson_link(uri):
  70     try:
  71         return {'lesson': Lesson.objects.get(slug=WLURI(uri).slug)}
  72     except Lesson.DoesNotExist:
  73         return {}
  74
  75 @register.filter
  76 def person_list(persons):
  77     return u", ".join(Person.from_text(p).readable() for p in persons)
  78
  79
  80 # FIXME: Move to fnpdjango
  81 import feedparser
  82 import datetime
  83 @register.inclusion_tag('catalogue/latest_blog_posts.html')
  84 def latest_blog_posts(feed_url, posts_to_show=5):
  85     try:
  86         feed = feedparser.parse(str(feed_url))
  87         posts = []
  88         for i in range(posts_to_show):
  89             pub_date = feed['entries'][i].updated_parsed
  90             published = datetime.date(pub_date[0], pub_date[1], pub_date[2] )
  91             posts.append({
  92                 'title': feed['entries'][i].title,
  93                 'summary': feed['entries'][i].summary,
  94                 'link': feed['entries'][i].link,
  95                 'date': published,
  96                 })
  97         return {'posts': posts}
  98     except:
  99         return {'posts': []}