src/dictionary/views.py

   1 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
   2 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
   3 #
   4 from django.views.generic.list import ListView
   5 from django.conf import settings
   6 from django.db.models import Q
   7 from catalogue.constants import LANGUAGES_3TO2
   8 from .constants import FN_TYPES
   9 from .models import Note, Qualifier
  10
  11
  12 class NotesView(ListView):
  13     def __init__(self, **kwargs):
  14         super(NotesView, self).__init__(**kwargs)
  15         self.qualifier = None
  16         self.qualifiers = None
  17         self.language = None
  18         self.languages = None
  19         self.fn_type = None
  20         self.fn_types = None
  21         self.letter = None
  22         self.letters = None
  23
  24     def get_queryset(self):
  25         objects = Note.objects.all()
  26         filters = {}
  27
  28         try:
  29             self.qualifier = Qualifier.objects.get(qualifier=self.request.GET.get('qual'))
  30         except Qualifier.DoesNotExist:
  31             pass
  32         else:
  33             filters['qualifier'] = Q(qualifiers=self.qualifier)
  34
  35         self.language = self.request.GET.get('lang')
  36         if self.language:
  37             filters['language'] = Q(language=self.language)
  38
  39         self.fn_type = self.request.GET.get('type')
  40         if self.fn_type:
  41             filters['fn_type'] = Q(fn_type=self.fn_type)
  42
  43         self.letter = self.request.GET.get('ltr')
  44         if self.letter == "0-9":
  45             objects = objects.filter(sort_key__regex=r"^[0-9]")
  46             # filters['letter'] = Q(sort_key__regex=r"^[0-9]")
  47         elif self.letter:
  48             objects = objects.filter(sort_key__startswith=self.letter)
  49             # filters['letter'] = Q(sort_key__startswith=self.letter)
  50
  51         self.letters = ["0-9"] + [chr(a) for a in range(ord('a'), ord('z')+1)]
  52
  53         nobj = objects
  54         for key, fltr in filters.items():
  55             if key != 'qualifier':
  56                 nobj = nobj.filter(fltr)
  57         self.qualifiers = Qualifier.objects.filter(note__in=nobj).distinct()
  58
  59         nobj = objects
  60         for key, fltr in filters.items():
  61             if key != 'language':
  62                 nobj = nobj.filter(fltr)
  63         self.languages = nobj.order_by('language').values_list(
  64             'language', flat=True).distinct()
  65         lang_names = dict(settings.LANGUAGES)
  66         self.languages = [
  67             (lang, lang_names.get(LANGUAGES_3TO2.get(lang, lang), lang))
  68             for lang in self.languages]
  69
  70         nobj = objects
  71         for key, fltr in filters.items():
  72             if key != 'fn_type':
  73                 nobj = nobj.filter(fltr)
  74         self.fn_types = nobj.order_by('fn_type').values_list(
  75             'fn_type', flat=True).distinct()
  76         self.fn_types = [(fnt, FN_TYPES[fnt]) for fnt in self.fn_types]
  77
  78         for f in filters.values():
  79             objects = objects.filter(f)
  80
  81         return objects
  82
  83     def get_context_data(self, **kwargs):
  84         context = super(NotesView, self).get_context_data(**kwargs)
  85         context['letters'] = self.letters
  86         context['letter'] = self.letter
  87         context['qualifiers'] = self.qualifiers
  88         context['qualifier'] = self.qualifier
  89         context['languages'] = self.languages
  90         context['language'] = self.language
  91         context['fn_types'] = self.fn_types
  92         context['fn_type'] = self.fn_type
  93         return context