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