curriculum/views.py

   1 from django.db import models
   2 from django.views.generic import DetailView, ListView
   3 from django.utils.datastructures import SortedDict
   4 from .models import Competence, Section, Level, CompetenceLevel
   5
   6
   7 class CompetenceDetailView(DetailView):
   8     model = Competence
   9
  10
  11 class CompetencesView(ListView):
  12     model = Competence
  13
  14     def get_context_data(self, **kwargs):
  15         context = super(CompetencesView, self).get_context_data(**kwargs)
  16         context['levels'] = Level.objects.all()
  17         context['sections'] = Section.objects.all()
  18
  19         errors = {}
  20
  21         try:
  22             level = Level.objects.get(slug=self.request.GET.get('level'))
  23         except Level.DoesNotExist:
  24             level = None
  25         context['level'] = level
  26
  27         comp_ids = set()
  28         for c in self.request.GET.getlist('c'):
  29             try:
  30                 comp_ids.add(int(c))
  31             except ValueError:
  32                 pass
  33         context['comp_ids'] = comp_ids
  34         sect_ids = set()
  35         for c in self.request.GET.getlist('s'):
  36             try:
  37                 sect_ids.add(int(c))
  38             except ValueError:
  39                 pass
  40         context['sect_ids'] = sect_ids
  41
  42         if not (comp_ids or sect_ids):
  43             if level:
  44                 errors["competences"] = "Please!"
  45         elif level is None:
  46             errors["level"] = "Please!"
  47         else:
  48             chosen_competences = SortedDict()
  49             for competence in Competence.objects.filter(
  50                     models.Q(pk__in=comp_ids) | models.Q(section__pk__in=sect_ids)):
  51                 try:
  52                     competence.for_level_ = competence.for_level(level)
  53                 except CompetenceLevel.DoesNotExist:
  54                     pass
  55                 chosen_competences.setdefault(competence.section, []).append(competence)
  56             context['chosen_competences'] = chosen_competences
  57
  58         context["errors"] = errors
  59         return context