catalogue/templatetags/catalogue_tags.py

   1 from collections import defaultdict
   2 from django import template
   3 from django.utils.datastructures import SortedDict
   4 from ..models import Lesson, Section
   5 from curriculum.models import Level, CurriculumCourse
   6 from librarian.dcparser import WLURI, Person
   7
   8 register = template.Library()
   9
  10
  11 @register.inclusion_tag("catalogue/snippets/carousel.html")
  12 def catalogue_carousel():
  13     return {
  14         "object_list": Section.objects.all()
  15     }
  16
  17 @register.inclusion_tag("catalogue/snippets/levels_main.html")
  18 def catalogue_levels_main():
  19     object_list = Level.objects.exclude(lesson=None)
  20     c = object_list.count()
  21     return {
  22         'object_list': object_list,
  23         'section_width': (700 - 20 * (c - 1)) / c,
  24     }
  25
  26
  27 @register.inclusion_tag("catalogue/snippets/level_box.html")
  28 def level_box(level):
  29     lessons = dict(
  30         synthetic = [],
  31         course = SortedDict(),
  32         project = [],
  33     )
  34     by_course = defaultdict(lambda: defaultdict(list))
  35
  36     lesson_lists = [alist for alist in [
  37         list(level.lesson_set.exclude(type='appendix').order_by('section__order', 'order')),
  38         list(level.lessonstub_set.all())
  39     ] if alist]
  40
  41     while lesson_lists:
  42         min_index, min_list = min(enumerate(lesson_lists), key=lambda x: x[1][0].order)
  43         lesson = min_list.pop(0)
  44         if not min_list:
  45             lesson_lists.pop(min_index)
  46
  47         if lesson.type == 'course':
  48             if lesson.section not in lessons['course']:
  49                 lessons['course'][lesson.section] = []
  50             lessons['course'][lesson.section].append(lesson)
  51         elif lesson.type == 'added': continue
  52         else:
  53             lessons[lesson.type].append(lesson)
  54
  55         if hasattr(lesson, 'curriculum_courses'):
  56             for course in lesson.curriculum_courses.all():
  57                 by_course[course][lesson.type].append(lesson)
  58
  59     courses = [(course, by_course[course]) for course in
  60         CurriculumCourse.objects.filter(lesson__level=level).distinct()]
  61
  62     added = []
  63     if level.slug == 'liceum':
  64         added.append({
  65             'slug': 'filmowa',
  66             'title': u'Edukacja filmowa',
  67             'lessons': [
  68                 Lesson.objects.get(slug=s) for s in [
  69 'film-co-to-wlasciwie-jest',
  70 'scenariusz-scenopis-i-srodki-realizacyjne',
  71 'kompozycja-obrazu-filmowego',
  72 'praca-kamery-kadr-kat',
  73 'montaz-materialu-filmowego',
  74 'swiatlo-i-dzwiek-w-filmie',
  75 'scenografia-charakteryzacja-kostiumy-i-aktorzy',
  76 'narracja-w-filmie-tekst-i-fabula',
  77                 ]
  78             ],
  79             })
  80
  81     return {
  82         "level": level,
  83         "lessons": lessons,
  84         "courses": courses,
  85         "added": added,
  86     }
  87
  88 @register.inclusion_tag("catalogue/snippets/lesson_nav.html")
  89 def lesson_nav(lesson):
  90     if lesson.type == 'course':
  91         root = lesson.section
  92         siblings = Lesson.objects.filter(type='course', level=lesson.level, section=root)
  93     elif lesson.type == 'appendix':
  94         root = None
  95         siblings = Lesson.objects.filter(type=lesson.type)
  96     elif lesson.type == 'added':
  97         root = None
  98         siblings = [
  99                 Lesson.objects.get(slug=s) for s in [
 100 'film-co-to-wlasciwie-jest',
 101 'scenariusz-scenopis-i-srodki-realizacyjne',
 102 'kompozycja-obrazu-filmowego',
 103 'praca-kamery-kadr-kat',
 104 'montaz-materialu-filmowego',
 105 'swiatlo-i-dzwiek-w-filmie',
 106 'scenografia-charakteryzacja-kostiumy-i-aktorzy',
 107 'narracja-w-filmie-tekst-i-fabula',
 108                 ]
 109             ]
 110     else:
 111         root = None
 112         siblings = Lesson.objects.filter(type=lesson.type, level=lesson.level)
 113     return {
 114         "lesson": lesson,
 115         "root": root,
 116         "siblings": siblings,
 117     }
 118
 119 @register.inclusion_tag("catalogue/snippets/lesson_link.html")
 120 def lesson_link(uri):
 121     try:
 122         return {'lesson': Lesson.objects.get(slug=WLURI(uri).slug)}
 123     except Lesson.DoesNotExist:
 124         return {}
 125
 126 @register.filter
 127 def person_list(persons):
 128     return u", ".join(Person.from_text(p).readable() for p in persons)
 129
 130
 131 # FIXME: Move to fnpdjango
 132 import feedparser
 133 import datetime
 134 @register.inclusion_tag('catalogue/latest_blog_posts.html')
 135 def latest_blog_posts(feed_url, posts_to_show=5):
 136     try:
 137         feed = feedparser.parse(str(feed_url))
 138         posts = []
 139         for i in range(posts_to_show):
 140             pub_date = feed['entries'][i].updated_parsed
 141             published = datetime.date(pub_date[0], pub_date[1], pub_date[2] )
 142             posts.append({
 143                 'title': feed['entries'][i].title,
 144                 'summary': feed['entries'][i].summary,
 145                 'link': feed['entries'][i].link,
 146                 'date': published,
 147                 })
 148         return {'posts': posts}
 149     except:
 150         return {'posts': []}