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         "section": section,
  34         "lessons": lessons,
  35     }
  36
  37 @register.inclusion_tag("catalogue/snippets/lesson_nav.html")
  38 def lesson_nav(lesson):
  39     if lesson.type == 'course':
  40         root = lesson.section
  41         siblings = root.lesson_set.filter(type='course', level=lesson.level)
  42         mark_level = False
  43     else:
  44         root = None
  45         siblings = Lesson.objects.filter(type=lesson.type)
  46         mark_level = True
  47     return {
  48         "lesson": lesson,
  49         "root": root,
  50         "siblings": siblings,
  51         "mark_level": mark_level
  52     }
  53
  54 @register.inclusion_tag("catalogue/snippets/lesson_link.html")
  55 def lesson_link(uri):
  56     try:
  57         return {'lesson': Lesson.objects.get(slug=WLURI(uri).slug)}
  58     except Lesson.DoesNotExist:
  59         return {}
  60
  61 @register.filter
  62 def person_list(persons):
  63     return u", ".join(Person.from_text(p).readable() for p in persons)
  64
  65
  66 # FIXME: Move to fnpdjango
  67 import feedparser
  68 import datetime
  69 @register.inclusion_tag('catalogue/latest_blog_posts.html')
  70 def latest_blog_posts(feed_url, posts_to_show=5):
  71     try:
  72         feed = feedparser.parse(str(feed_url))
  73         posts = []
  74         for i in range(posts_to_show):
  75             pub_date = feed['entries'][i].updated_parsed
  76             published = datetime.date(pub_date[0], pub_date[1], pub_date[2] )
  77             posts.append({
  78                 'title': feed['entries'][i].title,
  79                 'summary': feed['entries'][i].summary,
  80                 'link': feed['entries'][i].link,
  81                 'date': published,
  82                 })
  83         return {'posts': posts}
  84     except:
  85         return {'posts': []}