apps/social/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.shortcuts import render, get_object_or_404, redirect
   6 from django.http import HttpResponseForbidden
   7 from django.contrib.auth.decorators import login_required
   8 #~ from django.utils.datastructures import SortedDict
   9 from django.views.decorators.http import require_POST
  10 #~ from django.contrib import auth
  11 #~ from django.views.decorators import cache
  12 from django.utils.translation import ugettext as _
  13
  14 from ajaxable.utils import LazyEncoder, JSONResponse, AjaxableFormView
  15
  16 from catalogue.models import Book, Tag
  17 from social import forms
  18 from social.utils import get_set, likes, set_sets
  19
  20
  21 # ====================
  22 # = Shelf management =
  23 # ====================
  24
  25
  26 @require_POST
  27 def like_book(request, slug):
  28     if not request.user.is_authenticated():
  29         return HttpResponseForbidden('Login required.')
  30     book = get_object_or_404(Book, slug=slug)
  31     if not likes(request.user, book):
  32         tag = get_set(request.user, '')
  33         set_sets(request.user, book, [tag])
  34
  35     if request.is_ajax():
  36         return JSONResponse({"success": True, "msg": "ok", "like": True})
  37     else:
  38         return redirect(book)
  39
  40
  41 @login_required
  42 def my_shelf(request):
  43     books = Book.tagged.with_any(request.user.tag_set.all())
  44     return render(request, 'social/my_shelf.html', locals())
  45
  46
  47 class ObjectSetsFormView(AjaxableFormView):
  48     form_class = forms.ObjectSetsForm
  49     placeholdize = True
  50     template = 'social/sets_form.html'
  51     ajax_redirect = True
  52     POST_login = True
  53
  54     def get_object(self, request, slug):
  55         return get_object_or_404(Book, slug=slug)
  56
  57     def context_description(self, request, obj):
  58         return obj.pretty_title()
  59
  60     def form_args(self, request, obj):
  61         return (obj, request.user), {}
  62
  63
  64 def unlike_book(request, slug):
  65     book = get_object_or_404(Book, slug=slug)
  66     if likes(request.user, book):
  67         set_sets(request.user, book, [])
  68
  69     if request.is_ajax():
  70         return JSONResponse({"success": True, "msg": "ok", "like": False})
  71     else:
  72         return redirect(book)
  73
  74
  75 #~ @login_required
  76 #~ @cache.never_cache
  77 #~ def user_shelves(request):
  78     #~ shelves = models.Tag.objects.filter(category='set', user=request.user)
  79     #~ new_set_form = forms.NewSetForm()
  80     #~ return render_to_response('social/user_shelves.html', locals(),
  81             #~ context_instance=RequestContext(request))
  82 #~
  83 #~ @cache.never_cache
  84 #~ def book_sets(request, slug):
  85     #~ if not request.user.is_authenticated():
  86         #~ return HttpResponse(_('<p>To maintain your shelves you need to be logged in.</p>'))
  87 #~
  88     #~ book = get_object_or_404(models.Book, slug=slug)
  89 #~
  90     #~ user_sets = models.Tag.objects.filter(category='set', user=request.user)
  91     #~ book_sets = book.tags.filter(category='set', user=request.user)
  92 #~
  93     #~ if request.method == 'POST':
  94         #~ form = forms.ObjectSetsForm(book, request.user, request.POST)
  95         #~ if form.is_valid():
  96             #~ DONE!
  97             #~ if request.is_ajax():
  98                 #~ return JSONResponse('{"msg":"'+_("<p>Shelves were sucessfully saved.</p>")+'", "after":"close"}')
  99             #~ else:
 100                 #~ return HttpResponseRedirect('/')
 101     #~ else:
 102         #~ form = forms.ObjectSetsForm(book, request.user)
 103         #~ new_set_form = forms.NewSetForm()
 104 #~
 105     #~ return render_to_response('social/book_sets.html', locals(),
 106         #~ context_instance=RequestContext(request))
 107 #~
 108 #~
 109 #~ @login_required
 110 #~ @require_POST
 111 #~ @cache.never_cache
 112 #~ def remove_from_shelf(request, shelf, slug):
 113     #~ book = get_object_or_404(models.Book, slug=slug)
 114 #~
 115     #~ shelf = get_object_or_404(models.Tag, slug=shelf, category='set', user=request.user)
 116 #~
 117     #~ if shelf in book.tags:
 118         #~ models.Tag.objects.remove_tag(book, shelf)
 119         #~ touch_tag(shelf)
 120 #~
 121         #~ return HttpResponse(_('Book was successfully removed from the shelf'))
 122     #~ else:
 123         #~ return HttpResponse(_('This book is not on the shelf'))
 124 #~
 125 #~
 126 #~ def collect_books(books):
 127     #~ """
 128     #~ Returns all real books in collection.
 129     #~ """
 130     #~ result = []
 131     #~ for book in books:
 132         #~ if len(book.children.all()) == 0:
 133             #~ result.append(book)
 134         #~ else:
 135             #~ result += collect_books(book.children.all())
 136     #~ return result
 137 #~
 138 #~
 139 #~ @cache.never_cache
 140 #~ def download_shelf(request, slug):
 141     #~ """"
 142     #~ Create a ZIP archive on disk and transmit it in chunks of 8KB,
 143     #~ without loading the whole file into memory. A similar approach can
 144     #~ be used for large dynamic PDF files.
 145     #~ """
 146     #~ from slughifi import slughifi
 147     #~ import tempfile
 148     #~ import zipfile
 149 #~
 150     #~ shelf = get_object_or_404(models.Tag, slug=slug, category='set')
 151 #~
 152     #~ formats = []
 153     #~ form = forms.DownloadFormatsForm(request.GET)
 154     #~ if form.is_valid():
 155         #~ formats = form.cleaned_data['formats']
 156     #~ if len(formats) == 0:
 157         #~ formats = models.Book.ebook_formats
 158 #~
 159     #~ # Create a ZIP archive
 160     #~ temp = tempfile.TemporaryFile()
 161     #~ archive = zipfile.ZipFile(temp, 'w')
 162 #~
 163     #~ for book in collect_books(models.Book.tagged.with_all(shelf)):
 164         #~ for ebook_format in models.Book.ebook_formats:
 165             #~ if ebook_format in formats and book.has_media(ebook_format):
 166                 #~ filename = book.get_media(ebook_format).path
 167                 #~ archive.write(filename, str('%s.%s' % (book.slug, ebook_format)))
 168     #~ archive.close()
 169 #~
 170     #~ response = HttpResponse(content_type='application/zip', mimetype='application/x-zip-compressed')
 171     #~ response['Content-Disposition'] = 'attachment; filename=%s.zip' % slughifi(shelf.name)
 172     #~ response['Content-Length'] = temp.tell()
 173 #~
 174     #~ temp.seek(0)
 175     #~ response.write(temp.read())
 176     #~ return response
 177 #~
 178 #~
 179 #~ @cache.never_cache
 180 #~ def shelf_book_formats(request, shelf):
 181     #~ """"
 182     #~ Returns a list of formats of books in shelf.
 183     #~ """
 184     #~ shelf = get_object_or_404(models.Tag, slug=shelf, category='set')
 185 #~
 186     #~ formats = {}
 187     #~ for ebook_format in models.Book.ebook_formats:
 188         #~ formats[ebook_format] = False
 189 #~
 190     #~ for book in collect_books(models.Book.tagged.with_all(shelf)):
 191         #~ for ebook_format in models.Book.ebook_formats:
 192             #~ if book.has_media(ebook_format):
 193                 #~ formats[ebook_format] = True
 194 #~
 195     #~ return HttpResponse(LazyEncoder().encode(formats))
 196 #~
 197 #~
 198 #~ @login_required
 199 #~ @require_POST
 200 #~ @cache.never_cache
 201 #~ def new_set(request):
 202     #~ new_set_form = forms.NewSetForm(request.POST)
 203     #~ if new_set_form.is_valid():
 204         #~ new_set = new_set_form.save(request.user)
 205 #~
 206         #~ if request.is_ajax():
 207             #~ return JSONResponse('{"id":"%d", "name":"%s", "msg":"<p>Shelf <strong>%s</strong> was successfully created</p>"}' % (new_set.id, new_set.name, new_set))
 208         #~ else:
 209             #~ return HttpResponseRedirect('/')
 210 #~
 211     #~ return HttpResponseRedirect('/')
 212 #~
 213 #~
 214 #~ @login_required
 215 #~ @require_POST
 216 #~ @cache.never_cache
 217 #~ def delete_shelf(request, slug):
 218     #~ user_set = get_object_or_404(models.Tag, slug=slug, category='set', user=request.user)
 219     #~ user_set.delete()
 220 #~
 221     #~ if request.is_ajax():
 222         #~ return HttpResponse(_('<p>Shelf <strong>%s</strong> was successfully removed</p>') % user_set.name)
 223     #~ else:
 224         #~ return HttpResponseRedirect('/')