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.conf import settings
   7 from django.db.models import Count, Q
   8 from catalogue.constants import LANGUAGES_3TO2
   9 from .constants import FN_TYPES
  10 from .models import Note, Qualifier
  11
  12
  13 class NotesView(ListView):
  14     def get_queryset(self):
  15         objects = Note.objects.select_related('book').all()
  16         filters = {}
  17
  18         try:
  19             self.qualifier = Qualifier.objects.get(qualifier=self.request.GET.get('qual'))
  20         except Qualifier.DoesNotExist:
  21             self.qualifier = None
  22         else:
  23             filters['qualifier'] = Q(qualifiers=self.qualifier)
  24
  25         self.language = self.request.GET.get('lang')
  26         if self.language:
  27             filters['language'] = Q(language=self.language)
  28
  29         self.fn_type = self.request.GET.get('type')
  30         if self.fn_type:
  31             filters['fn_type'] = Q(fn_type=self.fn_type)
  32
  33         self.letter = self.request.GET.get('ltr')
  34         if self.letter == "0-9":
  35             objects = objects.filter(sort_key__regex=r"^[0-9]")
  36             #filters['letter'] = Q(sort_key__regex=r"^[0-9]")
  37         elif self.letter:
  38             objects = objects.filter(sort_key__startswith=self.letter)
  39             #filters['letter'] = Q(sort_key__startswith=self.letter)
  40
  41         self.letters = ["0-9"] + [chr(a) for a in range(ord('a'), ord('z')+1)]
  42
  43         nobj = objects
  44         for key, fltr in filters.items():
  45             if key != 'qualifier':
  46                 nobj = nobj.filter(fltr)
  47         self.qualifiers = Qualifier.objects.filter(note__in=nobj).distinct()
  48
  49         nobj = objects
  50         for key, fltr in filters.items():
  51             if key != 'language':
  52                 nobj = nobj.filter(fltr)
  53         self.languages = nobj.order_by('language').values_list(
  54             'language', flat=True).distinct()
  55         lang_names = dict(settings.LANGUAGES)
  56         self.languages = [
  57             (lang, lang_names.get(LANGUAGES_3TO2.get(lang, lang), lang))
  58             for lang in self.languages]
  59
  60         nobj = objects
  61         for key, fltr in filters.items():
  62             if key != 'fn_type':
  63                 nobj = nobj.filter(fltr)
  64         self.fn_types = nobj.order_by('fn_type').values_list(
  65             'fn_type', flat=True).distinct()
  66         self.fn_types = [(fnt, FN_TYPES[fnt]) for fnt in self.fn_types]
  67
  68         for f in filters.values():
  69             objects = objects.filter(f)
  70
  71         return objects
  72
  73     def get_context_data(self, **kwargs):
  74         context = super(NotesView, self).get_context_data(**kwargs)
  75         context['letters'] = self.letters
  76         context['letter'] = self.letter
  77         context['qualifiers'] = self.qualifiers
  78         context['qualifier'] = self.qualifier
  79         context['languages'] = self.languages
  80         context['language'] = self.language
  81         context['fn_types'] = self.fn_types
  82         context['fn_type'] = self.fn_type
  83         return context