apps/wiki/views.py

   1 import os
   2
   3 from django.conf import settings
   4 from django.views.generic.simple import direct_to_template
   5 from django.http import HttpResponse, Http404
   6 from django.utils import simplejson as json
   7
   8 from wiki.models import storage, Document, DocumentNotFound
   9 from wiki.forms import DocumentForm
  10 from datetime import datetime
  11 from django.utils.encoding import smart_unicode
  12
  13 # import google_diff
  14 # import difflib
  15 import nice_diff
  16 import operator
  17
  18 MAX_LAST_DOCS = 10
  19
  20 class DateTimeEncoder(json.JSONEncoder):
  21      def default(self, obj):
  22          if isinstance(obj, datetime):
  23              return datetime.ctime(obj) + " " + (datetime.tzname(obj) or 'GMT')
  24          return json.JSONEncoder.default(self, obj)
  25
  26 def document_list(request, template_name = 'wiki/document_list.html'):
  27     # TODO: find a way to cache "Storage All"
  28     return direct_to_template(request, template_name, extra_context = {
  29         'document_list': storage.all(),
  30         'last_docs': sorted(request.session.get("wiki_last_docs", {}).items(),
  31                         key=operator.itemgetter(1), reverse = True)
  32     })
  33
  34
  35 def document_detail(request, name, template_name = 'wiki/document_details.html'):
  36     try:
  37         document = storage.get(name)
  38     except DocumentNotFound:
  39         raise Http404
  40
  41     access_time = datetime.now()
  42     last_documents = request.session.get("wiki_last_docs", {})
  43     last_documents[name] = access_time
  44
  45     if len(last_documents) > MAX_LAST_DOCS:
  46         oldest_key = min(last_documents, key = last_documents.__getitem__)
  47         del last_documents[oldest_key]
  48     request.session['wiki_last_docs'] = last_documents
  49
  50     if request.method == 'POST':
  51
  52         form = DocumentForm(request.POST, instance = document)
  53         if form.is_valid():
  54             document = form.save()
  55             return HttpResponse(json.dumps({'text': document.plain_text, 'meta': document.meta(), 'revision': document.revision()}))
  56         else:
  57             return HttpResponse(json.dumps({'errors': form.errors}))
  58     else:
  59         form = DocumentForm(instance = document)
  60
  61     return direct_to_template(request, template_name, extra_context = {
  62         'document': document,
  63         'form': form,
  64     })
  65
  66
  67 def document_gallery(request, directory):
  68     try:
  69         base_dir = os.path.join(
  70                     smart_unicode(settings.MEDIA_ROOT),
  71                     smart_unicode(settings.FILEBROWSER_DIRECTORY),
  72                     smart_unicode(directory) )
  73
  74         def map_to_url(filename):
  75
  76             return '%s%s%s/%s' % (
  77                         smart_unicode(settings.MEDIA_URL),
  78                         smart_unicode(settings.FILEBROWSER_DIRECTORY),
  79                         smart_unicode(directory),
  80                         smart_unicode(filename)
  81             )
  82
  83         def is_image(filename):
  84             return os.path.splitext(f)[1].lower() in (u'.jpg', u'.jpeg', u'.png')
  85
  86         images = [ map_to_url(f) for f in map(smart_unicode, os.listdir(base_dir)) if is_image(f) ]
  87         images.sort()
  88         return HttpResponse(json.dumps(images))
  89     except (IndexError, OSError), exc:
  90         import traceback
  91         traceback.print_exc()
  92
  93         raise Http404
  94
  95 def document_diff(request, name, revA, revB):
  96     docA = storage.get(name, int(revA))
  97     docB = storage.get(name, int(revB))
  98
  99
 100     return HttpResponse(nice_diff.html_diff_table(docA.plain_text.splitlines(),
 101                                          docB.plain_text.splitlines()) )
 102
 103
 104 def document_history(reuqest, name):
 105     return HttpResponse( json.dumps(storage.history(name), cls=DateTimeEncoder), mimetype='application/json')