src/documents/views.py

   1 # This file is part of FNP-Redakcja, licensed under GNU Affero GPLv3 or later.
   2 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
   3 #
   4 from collections import defaultdict
   5 from datetime import datetime, date, timedelta
   6 import logging
   7 import os
   8 from urllib.parse import quote_plus, unquote, urlsplit, urlunsplit
   9
  10 from django.conf import settings
  11 from django.contrib import auth
  12 from django.contrib.auth.models import User
  13 from django.contrib.auth.decorators import login_required, permission_required
  14 from django.urls import reverse
  15 from django.db.models import Count, Q
  16 from django.db import transaction
  17 from django import http
  18 from django.http import Http404, HttpResponse, HttpResponseForbidden
  19 from django.http.response import HttpResponseRedirect
  20 from django.shortcuts import get_object_or_404, render
  21 from django.utils.encoding import iri_to_uri
  22 from django.utils.translation import gettext_lazy as _
  23 from django.views.decorators.http import require_POST
  24 from django_cas_ng.decorators import user_passes_test
  25
  26 from librarian import epubcheck
  27 from apiclient import api_call, NotAuthorizedError
  28 from . import forms
  29 from . import helpers
  30 from .helpers import active_tab
  31 from .models import (Book, Chunk, Image, BookPublishRecord,
  32         ChunkPublishRecord, ImagePublishRecord, Project)
  33 from fileupload.views import UploadView
  34
  35 #
  36 # Quick hack around caching problems, TODO: use ETags
  37 #
  38 from django.views.decorators.cache import never_cache
  39
  40 logger = logging.getLogger("fnp.documents")
  41
  42
  43 @active_tab('all')
  44 @never_cache
  45 def document_list(request):
  46     return render(request, 'documents/document_list.html')
  47
  48
  49 @active_tab('images')
  50 @never_cache
  51 def image_list(request, user=None):
  52     return render(request, 'documents/image_list.html')
  53
  54
  55 @never_cache
  56 def user(request, username):
  57     user = get_object_or_404(User, username=username)
  58     return render(request, 'documents/user_page.html', {"viewed_user": user})
  59
  60
  61 @login_required
  62 @active_tab('my')
  63 @never_cache
  64 def my(request):
  65     last_books = sorted(request.session.get("wiki_last_books", {}).items(),
  66         key=lambda x: x[1]['time'], reverse=True)
  67     for k, v in last_books:
  68         v['time'] = datetime.fromtimestamp(v['time'])
  69     try:
  70         resp = api_call(request.user, 'username/')
  71     except NotAuthorizedError:
  72         wllogin = None
  73     else:
  74         wllogin = resp['username']
  75
  76     return render(request, 'documents/my_page.html', {
  77         'last_books': last_books,
  78         "logout_to": '/',
  79         "wllogin": wllogin,
  80         })
  81
  82
  83 @active_tab('users')
  84 def users(request):
  85     return render(request, 'documents/user_list.html', {
  86         'users': User.objects.all().annotate(count=Count('chunk')).order_by(
  87             '-count', 'last_name', 'first_name'),
  88     })
  89
  90
  91 @active_tab('activity')
  92 def activity(request, isodate=None):
  93     today = date.today()
  94     try:
  95         day = helpers.parse_isodate(isodate)
  96     except ValueError:
  97         day = today
  98
  99     if day > today:
 100         raise Http404
 101     if day != today:
 102         next_day = day + timedelta(1)
 103     prev_day = day - timedelta(1)
 104
 105     return render(request, 'documents/activity.html', locals())
 106
 107
 108 @never_cache
 109 def logout_then_redirect(request):
 110     auth.logout(request)
 111     return http.HttpResponseRedirect(quote_plus(request.GET.get('next', '/'), safe='/?='))
 112
 113
 114 @permission_required('documents.add_book')
 115 @active_tab('create')
 116 def create_missing(request, slug=None):
 117     if slug is None:
 118         slug = ''
 119     slug = slug.replace(' ', '-')
 120
 121     if request.method == "POST":
 122         form = forms.DocumentCreateForm(request.POST, request.FILES)
 123         if form.is_valid():
 124
 125             if request.user.is_authenticated:
 126                 creator = request.user
 127             else:
 128                 creator = None
 129             book = Book.create(
 130                 text=form.cleaned_data['text'],
 131                 creator=creator,
 132                 slug=form.cleaned_data['slug'],
 133                 title=form.cleaned_data['title'],
 134                 gallery=form.cleaned_data['gallery'],
 135             )
 136
 137             return http.HttpResponseRedirect(reverse("documents_book", args=[book.slug]))
 138     else:
 139         form = forms.DocumentCreateForm(initial={
 140                 "slug": slug,
 141                 "title": slug.replace('-', ' ').title(),
 142                 "gallery": slug,
 143         })
 144
 145     return render(request, "documents/document_create_missing.html", {
 146         "slug": slug,
 147         "form": form,
 148
 149         "logout_to": '/',
 150     })
 151
 152
 153 @permission_required('documents.add_book')
 154 @active_tab('upload')
 155 def upload(request):
 156     if request.method == "POST":
 157         form = forms.DocumentsUploadForm(request.POST, request.FILES)
 158         if form.is_valid():
 159             from slugify import slugify
 160
 161             if request.user.is_authenticated:
 162                 creator = request.user
 163             else:
 164                 creator = None
 165
 166             zip = form.cleaned_data['zip']
 167             skipped_list = []
 168             ok_list = []
 169             error_list = []
 170             slugs = {}
 171             existing = [book.slug for book in Book.objects.all()]
 172             for filename in zip.namelist():
 173                 if filename[-1] == '/':
 174                     continue
 175                 title = os.path.basename(filename)[:-4]
 176                 slug = slugify(title)
 177                 if not (slug and filename.endswith('.xml')):
 178                     skipped_list.append(filename)
 179                 elif slug in slugs:
 180                     error_list.append((filename, slug, _('Slug already used for %s' % slugs[slug])))
 181                 elif slug in existing:
 182                     error_list.append((filename, slug, _('Slug already used in repository.')))
 183                 else:
 184                     try:
 185                         zip.read(filename).decode('utf-8') # test read
 186                         ok_list.append((filename, slug, title))
 187                     except UnicodeDecodeError:
 188                         error_list.append((filename, title, _('File should be UTF-8 encoded.')))
 189                     slugs[slug] = filename
 190
 191             if not error_list:
 192                 for filename, slug, title in ok_list:
 193                     book = Book.create(
 194                         text=zip.read(filename).decode('utf-8'),
 195                         creator=creator,
 196                         slug=slug,
 197                         title=title,
 198                     )
 199
 200             return render(request, "documents/document_upload.html", {
 201                 "form": form,
 202                 "ok_list": ok_list,
 203                 "skipped_list": skipped_list,
 204                 "error_list": error_list,
 205
 206                 "logout_to": '/',
 207             })
 208     else:
 209         form = forms.DocumentsUploadForm()
 210
 211     return render(request, "documents/document_upload.html", {
 212         "form": form,
 213
 214         "logout_to": '/',
 215     })
 216
 217
 218 def serve_xml(request, book, slug):
 219     if not book.accessible(request):
 220         return HttpResponseForbidden("Not authorized.")
 221     xml = book.materialize(publishable=True)
 222     response = http.HttpResponse(xml, content_type='application/xml')
 223     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
 224     return response
 225
 226
 227 @never_cache
 228 def book_xml(request, slug):
 229     book = get_object_or_404(Book, slug=slug)
 230     return serve_xml(request, book, slug)
 231
 232
 233 @never_cache
 234 def book_xml_dc(request, slug):
 235     book = get_object_or_404(Book, catalogue_book_id=slug)
 236     return serve_xml(request, book, slug)
 237
 238
 239 @never_cache
 240 def book_txt(request, slug):
 241     book = get_object_or_404(Book, slug=slug)
 242     if not book.accessible(request):
 243         return HttpResponseForbidden("Not authorized.")
 244
 245     doc = book.wldocument()
 246     text = doc.as_text().get_bytes()
 247     response = http.HttpResponse(text, content_type='text/plain')
 248     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
 249     return response
 250
 251
 252 @never_cache
 253 def book_html(request, slug):
 254     book = get_object_or_404(Book, slug=slug)
 255     if not book.accessible(request):
 256         return HttpResponseForbidden("Not authorized.")
 257
 258     doc = book.wldocument(parse_dublincore=False)
 259     html = doc.as_html(options={'gallery': "'%s'" % book.gallery_url()})
 260
 261     html = html.get_bytes().decode('utf-8') if html is not None else ''
 262     # response = http.HttpResponse(html, content_type='text/html')
 263     # return response
 264     # book_themes = {}
 265     # for fragment in book.fragments.all().iterator():
 266     #     for theme in fragment.tags.filter(category='theme').iterator():
 267     #         book_themes.setdefault(theme, []).append(fragment)
 268
 269     # book_themes = book_themes.items()
 270     # book_themes.sort(key=lambda s: s[0].sort_key)
 271     return render(request, 'documents/book_text.html', locals())
 272
 273
 274 @login_required
 275 @never_cache
 276 def book_pdf(request, slug, mobile=False):
 277     book = get_object_or_404(Book, slug=slug)
 278     if not book.accessible(request):
 279         return HttpResponseForbidden("Not authorized.")
 280
 281     # TODO: move to celery
 282     doc = book.wldocument()
 283     # TODO: error handling
 284     customizations = ['26pt', 'nothemes', 'nomargins', 'notoc'] if mobile else None
 285     pdf_file = doc.as_pdf(cover=True, base_url=request.build_absolute_uri(book.gallery_path()), customizations=customizations)
 286     from .ebook_utils import serve_file
 287     return serve_file(pdf_file.get_filename(),
 288                 book.slug + '.pdf', 'application/pdf')
 289
 290
 291 @login_required
 292 @never_cache
 293 def book_epub(request, slug):
 294     book = get_object_or_404(Book, slug=slug)
 295     if not book.accessible(request):
 296         return HttpResponseForbidden("Not authorized.")
 297
 298     # TODO: move to celery
 299     doc = book.wldocument(librarian2=True)
 300     # TODO: error handling
 301
 302     from librarian.builders import EpubBuilder
 303     epub = EpubBuilder(
 304         base_url='file://' + book.gallery_path() + '/',
 305         debug=True
 306     ).build(doc).get_bytes()
 307     response = HttpResponse(content_type='application/epub+zip')
 308     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.epub'
 309     response.write(epub)
 310     return response
 311
 312
 313 @login_required
 314 @never_cache
 315 def book_epubcheck(request, slug):
 316     book = get_object_or_404(Book, slug=slug)
 317     if not book.accessible(request):
 318         return HttpResponseForbidden("Not authorized.")
 319
 320     # TODO: move to celery
 321     doc = book.wldocument(librarian2=True)
 322     # TODO: error handling
 323
 324     from librarian.builders import EpubBuilder
 325     epub = EpubBuilder(
 326         base_url='file://' + book.gallery_path() + '/',
 327         debug=True
 328     ).build(doc)
 329     fname = epub.get_filename()
 330
 331     messages = epubcheck.epubcheck(fname)
 332     for message in messages:
 333         for location in message.get('locations', []):
 334             if 'wl_chunk' in location:
 335                 location['wl_chunk'] = book[location['wl_chunk']]
 336     return render(request, 'documents/book_epubcheck.html', {
 337         'messages': messages,
 338         'book': book,
 339     })
 340
 341
 342 @login_required
 343 @never_cache
 344 def book_mobi(request, slug):
 345     book = get_object_or_404(Book, slug=slug)
 346     if not book.accessible(request):
 347         return HttpResponseForbidden("Not authorized.")
 348
 349     # TODO: move to celery
 350     doc = book.wldocument(librarian2=True)
 351     # TODO: error handling
 352     from librarian.builders import MobiBuilder
 353     mobi = MobiBuilder(
 354         base_url='file://' + book.gallery_path() + '/'
 355     ).build(doc).get_bytes()
 356     response = HttpResponse(content_type='application/x-mobipocket-ebook')
 357     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.mobi'
 358     response.write(mobi)
 359     return response
 360
 361
 362 @never_cache
 363 def revision(request, slug, chunk=None):
 364     try:
 365         doc = Chunk.get(slug, chunk)
 366     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 367         raise Http404
 368     if not doc.book.accessible(request):
 369         return HttpResponseForbidden("Not authorized.")
 370     return http.HttpResponse(str(doc.revision()))
 371
 372
 373 def book(request, slug):
 374     book = get_object_or_404(Book, slug=slug)
 375     if not book.accessible(request):
 376         return HttpResponseForbidden("Not authorized.")
 377
 378     if request.user.has_perm('documents.change_book'):
 379         if request.method == "POST":
 380             form = forms.BookForm(request.POST, instance=book)
 381             if form.is_valid():
 382                 form.save()
 383                 return http.HttpResponseRedirect(book.get_absolute_url())
 384         else:
 385             form = forms.BookForm(instance=book)
 386         publish_options_form = forms.PublishOptionsForm()
 387         editable = True
 388     else:
 389         form = forms.ReadonlyBookForm(instance=book)
 390         publish_options_form = forms.PublishOptionsForm()
 391         editable = False
 392
 393     publish_error = book.publishable_error()
 394     publishable = publish_error is None
 395
 396     stats = None
 397     try:
 398         doc = book.wldocument(librarian2=True)
 399     except:
 400         doc = None
 401     else:
 402         try:
 403             stats = doc.get_statistics()
 404         except:
 405             pass
 406
 407     return render(request, "documents/book_detail.html", {
 408         "book": book,
 409         "doc": doc,
 410         "stats": stats,
 411         "publishable": publishable,
 412         "publishable_error": publish_error,
 413         "form": form,
 414         "publish_options_form": publish_options_form,
 415         "editable": editable,
 416     })
 417
 418
 419 def image(request, slug):
 420     image = get_object_or_404(Image, slug=slug)
 421     if not image.accessible(request):
 422         return HttpResponseForbidden("Not authorized.")
 423
 424     if request.user.has_perm('documents.change_image'):
 425         if request.method == "POST":
 426             form = forms.ImageForm(request.POST, instance=image)
 427             if form.is_valid():
 428                 form.save()
 429                 return http.HttpResponseRedirect(image.get_absolute_url())
 430         else:
 431             form = forms.ImageForm(instance=image)
 432         editable = True
 433     else:
 434         form = forms.ReadonlyImageForm(instance=image)
 435         editable = False
 436
 437     publish_error = image.publishable_error()
 438     publishable = publish_error is None
 439
 440     return render(request, "documents/image_detail.html", {
 441         "object": image,
 442         "publishable": publishable,
 443         "publishable_error": publish_error,
 444         "form": form,
 445         "editable": editable,
 446     })
 447
 448
 449 @permission_required('documents.add_chunk')
 450 def chunk_add(request, slug, chunk):
 451     try:
 452         doc = Chunk.get(slug, chunk)
 453     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 454         raise Http404
 455     if not doc.book.accessible(request):
 456         return HttpResponseForbidden("Not authorized.")
 457
 458     if request.method == "POST":
 459         form = forms.ChunkAddForm(request.POST, instance=doc)
 460         if form.is_valid():
 461             if request.user.is_authenticated:
 462                 creator = request.user
 463             else:
 464                 creator = None
 465             doc.split(creator=creator,
 466                 slug=form.cleaned_data['slug'],
 467                 title=form.cleaned_data['title'],
 468                 gallery_start=form.cleaned_data['gallery_start'],
 469                 user=form.cleaned_data['user'],
 470                 stage=form.cleaned_data['stage']
 471             )
 472
 473             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 474     else:
 475         form = forms.ChunkAddForm(initial={
 476                 "slug": str(doc.number + 1),
 477                 "title": "cz. %d" % (doc.number + 1, ),
 478         })
 479
 480     return render(request, "documents/chunk_add.html", {
 481         "chunk": doc,
 482         "form": form,
 483     })
 484
 485
 486 @login_required
 487 def chunk_edit(request, slug, chunk):
 488     try:
 489         doc = Chunk.get(slug, chunk)
 490     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 491         raise Http404
 492     if not doc.book.accessible(request):
 493         return HttpResponseForbidden("Not authorized.")
 494
 495     if request.method == "POST":
 496         form = forms.ChunkForm(request.POST, instance=doc)
 497         if form.is_valid():
 498             form.save()
 499             go_next = request.GET.get('next', None)
 500             if go_next:
 501                 go_next = quote_plus(unquote(iri_to_uri(go_next)), safe='/?=&')
 502             else:
 503                 go_next = doc.book.get_absolute_url()
 504             return http.HttpResponseRedirect(go_next)
 505     else:
 506         form = forms.ChunkForm(instance=doc)
 507
 508     referer = request.META.get('HTTP_REFERER')
 509     if referer:
 510         parts = urlsplit(referer)
 511         parts = ['', ''] + list(parts[2:])
 512         go_next = quote_plus(urlunsplit(parts))
 513     else:
 514         go_next = ''
 515
 516     return render(request, "documents/chunk_edit.html", {
 517         "chunk": doc,
 518         "form": form,
 519         "go_next": go_next,
 520     })
 521
 522
 523 @transaction.atomic
 524 @login_required
 525 @require_POST
 526 def chunk_mass_edit(request):
 527     ids = [int(i) for i in request.POST.get('ids').split(',') if i.strip()]
 528     chunks = list(Chunk.objects.filter(id__in=ids))
 529
 530     stage = request.POST.get('stage')
 531     if stage:
 532         try:
 533             stage = Chunk.tag_model.objects.get(slug=stage)
 534         except Chunk.DoesNotExist as e:
 535             stage = None
 536
 537         for c in chunks: c.stage = stage
 538
 539     username = request.POST.get('user')
 540     logger.info("username: %s" % username)
 541     logger.info(request.POST)
 542     if username:
 543         try:
 544             user = User.objects.get(username=username)
 545         except User.DoesNotExist as e:
 546             user = None
 547
 548         for c in chunks: c.user = user
 549
 550     project_id = request.POST.get('project')
 551     if project_id:
 552         try:
 553             project = Project.objects.get(pk=int(project_id))
 554         except (Project.DoesNotExist, ValueError) as e:
 555             project = None
 556         for c in chunks:
 557             book = c.book
 558             book.project = project
 559             book.save()
 560
 561     for c in chunks: c.save()
 562
 563     return HttpResponse("", content_type="text/plain")
 564
 565
 566 @transaction.atomic
 567 @login_required
 568 @require_POST
 569 def image_mass_edit(request):
 570     ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
 571     images = map(lambda i: Image.objects.get(id=i), ids)
 572
 573     stage = request.POST.get('stage')
 574     if stage:
 575         try:
 576             stage = Image.tag_model.objects.get(slug=stage)
 577         except Image.DoesNotExist as e:
 578             stage = None
 579
 580         for c in images: c.stage = stage
 581
 582     username = request.POST.get('user')
 583     logger.info("username: %s" % username)
 584     logger.info(request.POST)
 585     if username:
 586         try:
 587             user = User.objects.get(username=username)
 588         except User.DoesNotExist as e:
 589             user = None
 590
 591         for c in images: c.user = user
 592
 593     project_id = request.POST.get('project')
 594     if project_id:
 595         try:
 596             project = Project.objects.get(pk=int(project_id))
 597         except (Project.DoesNotExist, ValueError) as e:
 598             project = None
 599         for c in images:
 600             c.project = project
 601
 602     for c in images: c.save()
 603
 604     return HttpResponse("", content_type="text/plain")
 605
 606
 607 @permission_required('documents.change_book')
 608 def book_append(request, slug):
 609     book = get_object_or_404(Book, slug=slug)
 610     if not book.accessible(request):
 611         return HttpResponseForbidden("Not authorized.")
 612
 613     if request.method == "POST":
 614         form = forms.BookAppendForm(book, request.POST)
 615         if form.is_valid():
 616             append_to = form.cleaned_data['append_to']
 617             append_to.append(book)
 618             return http.HttpResponseRedirect(append_to.get_absolute_url())
 619     else:
 620         form = forms.BookAppendForm(book)
 621     return render(request, "documents/book_append_to.html", {
 622         "book": book,
 623         "form": form,
 624
 625         "logout_to": '/',
 626     })
 627
 628
 629 @require_POST
 630 @login_required
 631 def publish(request, slug):
 632     form = forms.PublishOptionsForm(request.POST)
 633     if form.is_valid():
 634         days = form.cleaned_data['days']
 635         beta = form.cleaned_data['beta']
 636         hidden = form.cleaned_data['hidden']
 637     else:
 638         days = 0
 639         beta = False
 640         hidden = False
 641     book = get_object_or_404(Book, slug=slug)
 642     if not book.accessible(request):
 643         return HttpResponseForbidden("Not authorized.")
 644
 645     try:
 646         protocol = 'https://' if request.is_secure() else 'http://'
 647         book.publish(request.user, host=protocol + request.get_host(), days=days, beta=beta, hidden=hidden)
 648     except NotAuthorizedError:
 649         return http.HttpResponseRedirect(reverse('apiclient_oauth' if not beta else 'apiclient_beta_oauth'))
 650     except BaseException as e:
 651         return http.HttpResponse(repr(e))
 652     else:
 653         return http.HttpResponseRedirect(book.get_absolute_url())
 654
 655
 656 @require_POST
 657 @login_required
 658 def publish_image(request, slug):
 659     image = get_object_or_404(Image, slug=slug)
 660     if not image.accessible(request):
 661         return HttpResponseForbidden("Not authorized.")
 662
 663     try:
 664         image.publish(request.user)
 665     except NotAuthorizedError:
 666         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 667     except BaseException as e:
 668         return http.HttpResponse(e)
 669     else:
 670         return http.HttpResponseRedirect(image.get_absolute_url())
 671
 672
 673 class GalleryView(UploadView):
 674     def get_object(self, request, slug):
 675         book = get_object_or_404(Book, slug=slug)
 676         if not book.gallery:
 677             raise Http404
 678         return book
 679
 680     def breadcrumbs(self):
 681         return [
 682             (_('books'), reverse('documents_document_list')),
 683             (self.object.title, self.object.get_absolute_url()),
 684             (_('scan gallery'),),
 685         ]
 686
 687     def get_directory(self):
 688         return "%s%s/" % (settings.IMAGE_DIR, self.object.gallery)
 689
 690
 691 def active_users_list(request, csv=False):
 692     year = int(request.GET.get('y', date.today().year))
 693     by_user = defaultdict(lambda: 0)
 694     by_email = defaultdict(lambda: 0)
 695     names_by_email = defaultdict(set)
 696     for change_model in (Chunk.change_model, Image.change_model):
 697         for c in change_model.objects.filter(
 698                 created_at__year=year).order_by(
 699                 'author', 'author_email', 'author_name').values(
 700                 'author', 'author_name', 'author_email').annotate(
 701                 c=Count('author'), ce=Count('author_email')).distinct():
 702             if c['author']:
 703                 by_user[c['author']] += c['c']
 704             else:
 705                 by_email[c['author_email']] += c['ce']
 706                 if (c['author_name'] or '').strip():
 707                     names_by_email[c['author_email']].add(c['author_name'])
 708     for user in User.objects.filter(pk__in=by_user):
 709         by_email[user.email] += by_user[user.pk]
 710         names_by_email[user.email].add("%s %s" % (user.first_name, user.last_name))
 711
 712     active_users = []
 713     for email, count in by_email.items():
 714         active_users.append((email, names_by_email[email], count))
 715     active_users.sort(key=lambda x: -x[2])
 716     if csv:
 717         return http.HttpResponse(
 718             '\n'.join((
 719                 ','.join(
 720                     (str(x[2]), x[0], ','.join(x[1]))
 721                 )
 722                 for x in active_users
 723             )),
 724             content_type='text/csv',
 725             headers={
 726                 'Content-Disposition': f'attachment; filename=redakcja-{year}.csv',
 727             }
 728         )
 729     else:
 730         return render(request, 'documents/active_users_list.html', {
 731             'users': active_users,
 732             'year': year,
 733         })
 734
 735
 736 @user_passes_test(lambda u: u.is_superuser)
 737 def mark_final(request):
 738     if request.method == 'POST':
 739         form = forms.MarkFinalForm(data=request.POST)
 740         if form.is_valid():
 741             form.save()
 742             return HttpResponseRedirect(reverse('mark_final_completed'))
 743     else:
 744         form = forms.MarkFinalForm()
 745     return render(request, 'documents/mark_final.html', {'form': form})
 746
 747
 748 def mark_final_completed(request):
 749     return render(request, 'documents/mark_final_completed.html')