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     return {
  12     }
  13
  14 @register.inclusion_tag("catalogue/snippets/section_buttons.html")
  15 def catalogue_section_buttons():
  16     return {
  17         "object_list": Section.objects.all()
  18     }
  19
  20 @register.inclusion_tag("catalogue/snippets/chosen_topics.html")
  21 def catalogue_chosen_topics():
  22     return {
  23     }
  24
  25 @register.inclusion_tag("catalogue/snippets/section_box.html")
  26 def section_box(section):
  27     lessons = SortedDict()
  28     for lesson in section.lesson_set.all():
  29         if lesson.level not in lessons:
  30             newdict = SortedDict()
  31             newdict['synthetic'] = []
  32             newdict['course'] = []
  33             lessons[lesson.level] = newdict
  34         if lesson.type not in lessons[lesson.level]:
  35             lessons[lesson.level][lesson.type] = []
  36         lessons[lesson.level][lesson.type].append(lesson)
  37     return {
  38         "lessons": lessons,
  39     }
  40
  41 @register.inclusion_tag("catalogue/snippets/lesson_nav.html")
  42 def lesson_nav(lesson):
  43     if lesson.type == 'course':
  44         root = lesson.section
  45         siblings = root.lesson_set.filter(type='course')
  46     else:
  47         root = None
  48         siblings = Lesson.objects.filter(type=lesson.type)
  49     return {
  50         "lesson": lesson,
  51         "root": root,
  52         "siblings": siblings,
  53     }
  54
  55 @register.inclusion_tag("catalogue/snippets/lesson_link.html")
  56 def lesson_link(uri):
  57     return {'lesson': Lesson.objects.get(slug=WLURI(uri).slug)}
  58
  59 @register.filter
  60 def person_list(persons):
  61     return u", ".join(Person.from_text(p).readable() for p in persons)
  62
  63
  64 # FIXME: Move to fnpdjango
  65 import feedparser
  66 import datetime
  67 @register.inclusion_tag('catalogue/latest_blog_posts.html')
  68 def latest_blog_posts(feed_url, posts_to_show=5):
  69     try:
  70         feed = feedparser.parse(str(feed_url))
  71         posts = []
  72         for i in range(posts_to_show):
  73             pub_date = feed['entries'][i].updated_parsed
  74             published = datetime.date(pub_date[0], pub_date[1], pub_date[2] )
  75             posts.append({
  76                 'title': feed['entries'][i].title,
  77                 'summary': feed['entries'][i].summary,
  78                 'link': feed['entries'][i].link,
  79                 'date': published,
  80                 })
  81         return {'posts': posts}
  82     except:
  83         return {'posts': []}