apps/dictionary/views.py

   1 # -*- coding: utf-8 -*-
   2 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
   3 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
   4 #
   5 from django.views.generic.list import ListView
   6 from django.db.models import Count, Q
   7 from .constants import FN_TYPES
   8 from .models import Note, Qualifier
   9
  10
  11 class NotesView(ListView):
  12     def get_queryset(self):
  13         objects = Note.objects.select_related('book').all()
  14         filters = {}
  15
  16         try:
  17             self.qualifier = Qualifier.objects.get(qualifier=self.request.GET.get('qual'))
  18         except Qualifier.DoesNotExist:
  19             self.qualifier = None
  20         else:
  21             filters['qualifier'] = Q(qualifiers=self.qualifier)
  22
  23         self.language = self.request.GET.get('lang')
  24         if self.language:
  25             filters['language'] = Q(language=self.language)
  26
  27         self.fn_type = self.request.GET.get('type')
  28         if self.fn_type:
  29             filters['fn_type'] = Q(fn_type=self.fn_type)
  30
  31         self.letter = self.request.GET.get('ltr')
  32         if self.letter == "0-9":
  33             objects = objects.filter(sort_key__regex=r"^[0-9]")
  34             #filters['letter'] = Q(sort_key__regex=r"^[0-9]")
  35         elif self.letter:
  36             objects = objects.filter(sort_key__startswith=self.letter)
  37             #filters['letter'] = Q(sort_key__startswith=self.letter)
  38
  39         self.letters = ["0-9"] + [chr(a) for a in range(ord('a'), ord('z')+1)]
  40
  41         nobj = objects
  42         for key, fltr in filters.items():
  43             if key != 'qualifier':
  44                 nobj = nobj.filter(fltr)
  45         self.qualifiers = Qualifier.objects.filter(note__in=nobj).distinct()
  46
  47         nobj = objects
  48         for key, fltr in filters.items():
  49             if key != 'language':
  50                 nobj = nobj.filter(fltr)
  51         self.languages = nobj.order_by('language').values_list(
  52             'language', flat=True).distinct()
  53
  54         nobj = objects
  55         for key, fltr in filters.items():
  56             if key != 'fn_type':
  57                 nobj = nobj.filter(fltr)
  58         self.fn_types = nobj.order_by('fn_type').values_list(
  59             'fn_type', flat=True).distinct()
  60         self.fn_types = [(fnt, FN_TYPES[fnt]) for fnt in self.fn_types]
  61
  62         for f in filters.values():
  63             objects = objects.filter(f)
  64
  65         return objects
  66
  67     def get_context_data(self, **kwargs):
  68         context = super(NotesView, self).get_context_data(**kwargs)
  69         context['letters'] = self.letters
  70         context['letter'] = self.letter
  71         context['qualifiers'] = self.qualifiers
  72         context['qualifier'] = self.qualifier
  73         context['languages'] = self.languages
  74         context['language'] = self.language
  75         context['fn_types'] = self.fn_types
  76         context['fn_type'] = self.fn_type
  77         return context