pep8, style, dead code cleanup etc.

[redakcja.git] / apps / wiki / views.py

diff --git a/apps/wiki/views.py b/apps/wiki/views.py
index 3739c90..1b16077 100644 (file)
--- a/apps/wiki/views.py
+++ b/apps/wiki/views.py
@@ -1,239 +1,130 @@
+# -*- coding: utf-8 -*-
+#
+# This file is part of MIL/PEER, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
+import json

 import os
 import os

-from StringIO import StringIO

 import logging
 import logging

-logger = logging.getLogger("fnp.wiki")
-
-from lxml import etree
+import urllib

 
 from django.conf import settings
 
 from django.conf import settings

-
-from django.views.generic.simple import direct_to_template
-from django.views.decorators.http import require_POST, require_GET
-from django.core.urlresolvers import reverse
-from wiki.helpers import (JSONResponse, JSONFormInvalid, JSONServerError,
-                ajax_require_permission, recursive_groupby)

 from django import http
 from django import http

-from django.shortcuts import get_object_or_404, redirect
-from django.http import Http404
-
-from wiki.models import Book, Chunk, Theme
-from wiki import forms
-from datetime import datetime
-from django.utils.encoding import smart_unicode
-from django.utils.translation import ugettext_lazy as _
-from django.utils.decorators import decorator_from_middleware
+from django.http import HttpResponseForbidden

 from django.middleware.gzip import GZipMiddleware
 from django.middleware.gzip import GZipMiddleware

+from django.utils.decorators import decorator_from_middleware
+from django.utils.encoding import smart_unicode
+from django.utils.formats import localize
+from django.utils.translation import ugettext as _
+from django.views.decorators.http import require_POST
+from django.shortcuts import get_object_or_404, render

 
 

-import librarian.html
-import librarian.text
-from wiki import xml_tools
+from catalogue.models import Document, Template
+from dvcs.models import Revision
+import nice_diff
+from wiki import forms
+from wiki.helpers import JSONResponse, JSONFormInvalid

 
 #
 # Quick hack around caching problems, TODO: use ETags
 #
 from django.views.decorators.cache import never_cache
 
 
 #
 # Quick hack around caching problems, TODO: use ETags
 #
 from django.views.decorators.cache import never_cache
 

-import nice_diff
-import operator
+logger = logging.getLogger("fnp.wiki")

 
 MAX_LAST_DOCS = 10
 
 
 
 MAX_LAST_DOCS = 10
 
 

-@never_cache
-def document_list(request):
-    return direct_to_template(request, 'wiki/document_list.html', extra_context={
-        'books': Book.objects.all(),
-        'last_books': sorted(request.session.get("wiki_last_books", {}).items(),
-                        key=lambda x: x[1]['time'], reverse=True),
-    })
+def get_history(document):
+    revisions = []
+    for i, revision in enumerate(document.history()):
+        revisions.append({
+            "version": i + 1,
+            "description": revision.description,
+            "author": revision.author_str(),
+            "date": localize(revision.created_at),
+            "revision": revision.pk,
+            "published": _("Published") + ": " +
+            localize(revision.publish_log.order_by('-timestamp')[0].timestamp)
+            if revision.publish_log.exists() else "",
+        })
+    return revisions

 
 
 @never_cache
 
 
 @never_cache

-def editor(request, slug, chunk=None, template_name='wiki/document_details.html'):
-    try:
-        chunk = Chunk.get(slug, chunk)
-    except Chunk.MultipleObjectsReturned:
-        # TODO: choice page
-        raise Http404
-    except Chunk.DoesNotExist:
-        if chunk is None:
-            try:
-                book = Book.objects.get(slug=slug)
-            except Book.DoesNotExist:
-                return http.HttpResponseRedirect(reverse("wiki_create_missing", args=[slug]))
-        else:
-            raise Http404
-
-    access_time = datetime.now()
-    last_books = request.session.get("wiki_last_books", {})
-    last_books[slug, chunk.slug] = {
-        'time': access_time,
-        'title': chunk.pretty_name(),
-        }
-
-    if len(last_books) > MAX_LAST_DOCS:
-        oldest_key = min(last_books, key=lambda x: last_books[x]['time'])
-        del last_books[oldest_key]
-    request.session['wiki_last_books'] = last_books
-
-    return direct_to_template(request, template_name, extra_context={
-        'chunk': chunk,
+def editor(request, pk, template_name='wiki/bootstrap.html'):
+    doc = get_object_or_404(Document, pk=pk, deleted=False)
+
+    save_form = forms.DocumentTextSaveForm(user=request.user, prefix="textsave")
+    text = doc.materialize()
+    revision = doc.revision
+    history = get_history(doc)
+    return render(request, template_name, {
+        'serialized_document_data': json.dumps({
+            'document': text,
+            'document_id': doc.pk,
+            'title': doc.meta().get('title', ''),
+            'history': history,
+            'version': len(history),
+            'revision': revision.pk,
+            'stage': doc.stage,
+            'assignment': str(doc.assigned_to),
+        }),
+        'serialized_templates': json.dumps([
+            {'id': t.id, 'name': t.name, 'content': t.content} for t in Template.objects.filter(is_partial=True)
+        ]),

         'forms': {
         'forms': {

-            "text_save": forms.DocumentTextSaveForm(prefix="textsave"),
+            "text_save": save_form,

             "text_revert": forms.DocumentTextRevertForm(prefix="textrevert"),
             "text_revert": forms.DocumentTextRevertForm(prefix="textrevert"),

-            "add_tag": forms.DocumentTagForm(prefix="addtag"),
+            "text_publish": forms.DocumentTextPublishForm(prefix="textpublish"),

         },
         },

-        'REDMINE_URL': settings.REDMINE_URL,
-    })
-
-
-@require_GET
-def editor_readonly(request, slug, chunk=None, template_name='wiki/document_details_readonly.html'):
-    try:
-        chunk = Chunk.get(slug, chunk)
-        revision = request.GET['revision']
-    except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist, KeyError):
-        raise Http404
-
-    access_time = datetime.now()
-    last_books = request.session.get("wiki_last_books", {})
-    last_books[slug, chunk.slug] = {
-        'time': access_time,
-        'title': chunk.book.title,
-        }
-
-    if len(last_books) > MAX_LAST_DOCS:
-        oldest_key = min(last_books, key=lambda x: last_books[x]['time'])
-        del last_books[oldest_key]
-    request.session['wiki_last_books'] = last_books
-
-    return direct_to_template(request, template_name, extra_context={
-        'chunk': chunk,
-        'revision': revision,
-        'readonly': True,
-        'REDMINE_URL': settings.REDMINE_URL,
-    })
-
-
-def create_missing(request, slug):
-    slug = slug.replace(' ', '-')
-
-    if request.method == "POST":
-        form = forms.DocumentCreateForm(request.POST, request.FILES)
-        if form.is_valid():
-            
-            if request.user.is_authenticated():
-                creator = request.user
-            else:
-                creator = None
-            book = Book.create(creator=creator,
-                slug=form.cleaned_data['slug'],
-                title=form.cleaned_data['title'],
-                text=form.cleaned_data['text'],
-            )
-
-            return http.HttpResponseRedirect(reverse("wiki_editor", args=[book.slug]))
-    else:
-        form = forms.DocumentCreateForm(initial={
-                "slug": slug,
-                "title": slug.replace('-', ' ').title(),
-        })
-
-    return direct_to_template(request, "wiki/document_create_missing.html", extra_context={
-        "slug": slug,
-        "form": form,
-    })
-
-
-def upload(request):
-    if request.method == "POST":
-        form = forms.DocumentsUploadForm(request.POST, request.FILES)
-        if form.is_valid():
-            import slughifi
-
-            if request.user.is_authenticated():
-                creator = request.user
-            else:
-                creator = None
-
-            zip = form.cleaned_data['zip']
-            skipped_list = []
-            ok_list = []
-            error_list = []
-            slugs = {}
-            existing = [book.slug for book in Book.objects.all()]
-            for filename in zip.namelist():
-                if filename[-1] == '/':
-                    continue
-                title = os.path.basename(filename)[:-4]
-                slug = slughifi(title)
-                if not (slug and filename.endswith('.xml')):
-                    skipped_list.append(filename)
-                elif slug in slugs:
-                    error_list.append((filename, slug, _('Slug already used for %s' % slugs[slug])))
-                elif slug in existing:
-                    error_list.append((filename, slug, _('Slug already used in repository.')))
-                else:
-                    try:
-                        zip.read(filename).decode('utf-8') # test read
-                        ok_list.append((filename, slug, title))
-                    except UnicodeDecodeError:
-                        error_list.append((filename, title, _('File should be UTF-8 encoded.')))
-                    slugs[slug] = filename
-
-            if not error_list:
-                for filename, slug, title in ok_list:
-                    Book.create(creator=creator,
-                        slug=slug,
-                        title=title,
-                        text=zip.read(filename).decode('utf-8'),
-                    )
-
-            return direct_to_template(request, "wiki/document_upload.html", extra_context={
-                "form": form,
-                "ok_list": ok_list,
-                "skipped_list": skipped_list,
-                "error_list": error_list,
-            })
-    else:
-        form = forms.DocumentsUploadForm()
-
-    return direct_to_template(request, "wiki/document_upload.html", extra_context={
-        "form": form,
+        'pk': doc.pk,

     })
 
 
 @never_cache
 @decorator_from_middleware(GZipMiddleware)
     })
 
 
 @never_cache
 @decorator_from_middleware(GZipMiddleware)

-def text(request, slug, chunk=None):
-    try:
-        doc = Chunk.get(slug, chunk)
-    except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
-        raise Http404
+def text(request, doc_id):
+    doc = get_object_or_404(Document, pk=doc_id, deleted=False)
+    # if not doc.book.accessible(request):
+    #     return HttpResponseForbidden("Not authorized.")

 
     if request.method == 'POST':
 
     if request.method == 'POST':

-        form = forms.DocumentTextSaveForm(request.POST, prefix="textsave")
+        form = forms.DocumentTextSaveForm(request.POST, user=request.user, prefix="textsave")

         if form.is_valid():
             if request.user.is_authenticated():
                 author = request.user
             else:
                 author = None
             text = form.cleaned_data['text']
         if form.is_valid():
             if request.user.is_authenticated():
                 author = request.user
             else:
                 author = None
             text = form.cleaned_data['text']

-            parent_revision = form.cleaned_data['parent_revision']
-            parent = doc.at_revision(parent_revision)
-            stage = form.cleaned_data['stage_completed']
-            tags = [stage] if stage else []
-            doc.commit(author=author,
-                       text=text,
-                       parent=parent,
-                       description=form.cleaned_data['comment'],
-                       tags=tags,
-                       )
-            revision = doc.revision()
+            # parent_revision = form.cleaned_data['parent_revision']
+            # if parent_revision is not None:
+            #     parent = doc.at_revision(parent_revision)
+            # else:
+            #     parent = None
+            stage = form.cleaned_data['stage']
+            # tags = [stage] if stage else []
+            # publishable = (form.cleaned_data['publishable'] and
+            #                request.user.has_perm('catalogue.can_pubmark'))
+            try:
+                doc.commit(
+                    author=author,
+                    text=text,
+                    description=form.cleaned_data['comment'],
+                    author_name=form.cleaned_data['author_name'],
+                    author_email=form.cleaned_data['author_email'],
+                )
+                doc.set_stage(stage)
+            except:
+                from traceback import print_exc
+                print_exc()
+                raise
+            # revision = doc.revision()

             return JSONResponse({
             return JSONResponse({

-                'text': doc.materialize() if parent_revision != revision else None,
-                'meta': {},
-                'revision': revision,
+                'text': None,  # doc.materialize() if parent_revision != revision else None,
+                # 'version': revision,
+                # 'stage': doc.stage.name if doc.stage else None,
+                'assignment': doc.assigned_to.username if doc.assigned_to else None

             })
         else:
             return JSONFormInvalid(form)
             })
         else:
             return JSONFormInvalid(form)


@@ -243,76 +134,50 @@ def text(request, slug, chunk=None):
         try:
             revision = int(revision)
         except (ValueError, TypeError):
         try:
             revision = int(revision)
         except (ValueError, TypeError):

-            revision = None
+            revision = doc.revision()
+
+        if revision is not None:
+            text = doc.at_revision(revision).materialize()
+        else:
+            text = ''

 
         return JSONResponse({
 
         return JSONResponse({

-            'text': doc.at_revision(revision).materialize(),
+            'text': text,

             'meta': {},
             'meta': {},

-            'revision': revision if revision else doc.revision(),
+            'revision': revision,

         })
 
 
         })
 
 

-@never_cache
-def book_xml(request, slug):
-    xml = get_object_or_404(Book, slug=slug).materialize(Book.publish_tag())
-
-    response = http.HttpResponse(xml, content_type='application/xml', mimetype='application/wl+xml')
-    response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
-    return response
-
-
-@never_cache
-def book_txt(request, slug):
-    xml = get_object_or_404(Book, slug=slug).materialize(Book.publish_tag())
-    output = StringIO()
-    # errors?
-    librarian.text.transform(StringIO(xml), output)
-    text = output.getvalue()
-    response = http.HttpResponse(text, content_type='text/plain', mimetype='text/plain')
-    response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
-    return response
-
-
-@never_cache
-def book_html(request, slug):
-    xml = get_object_or_404(Book, slug=slug).materialize(Book.publish_tag())
-    output = StringIO()
-    # errors?
-    librarian.html.transform(StringIO(xml), output, parse_dublincore=False,
-                             flags=['full-page'])
-    html = output.getvalue()
-    response = http.HttpResponse(html, content_type='text/html', mimetype='text/html')
-    return response
-
-

 @never_cache
 @require_POST
 @never_cache
 @require_POST

-def revert(request, slug, chunk=None):
+def revert(request, doc_id):

     form = forms.DocumentTextRevertForm(request.POST, prefix="textrevert")
     if form.is_valid():
     form = forms.DocumentTextRevertForm(request.POST, prefix="textrevert")
     if form.is_valid():

-        try:
-            doc = Chunk.get(slug, chunk)
-        except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
-            raise Http404
-
-        revision = form.cleaned_data['revision']
+        doc = get_object_or_404(Document, pk=doc_id, deleted=False)
+        rev = get_object_or_404(Revision, pk=form.cleaned_data['revision'])

 
         comment = form.cleaned_data['comment']
 
         comment = form.cleaned_data['comment']

-        comment += "\n#revert to %s" % revision
+        comment += "\n#revert to %s" % rev.pk

 
         if request.user.is_authenticated():
             author = request.user
         else:
             author = None
 
 
         if request.user.is_authenticated():
             author = request.user
         else:
             author = None
 

-        before = doc.revision()
-        logger.info("Reverting %s to %s", slug, revision)
-        doc.at_revision(revision).revert(author=author, description=comment)
+        # before = doc.revision
+        logger.info("Reverting %s to %s", doc_id, rev.pk)
+
+        doc.commit(
+            author=author,
+            text=rev.materialize(),
+            description=comment,
+            # author_name=form.cleaned_data['author_name'], #?
+            # author_email=form.cleaned_data['author_email'], #?
+        )

 
         return JSONResponse({
 
         return JSONResponse({

-            'text': doc.materialize() if before != doc.revision() else None,
-            'meta': {},
-            'revision': doc.revision(),
+            # 'document': None, #doc.materialize() if before != doc.revision else None,
+            # 'version': doc.revision(),

         })
     else:
         return JSONFormInvalid(form)
         })
     else:
         return JSONFormInvalid(form)


@@ -320,25 +185,29 @@ def revert(request, slug, chunk=None):
 
 @never_cache
 def gallery(request, directory):
 
 @never_cache
 def gallery(request, directory):

+    if not request.user.is_authenticated():
+        return HttpResponseForbidden("Not authorized.")
+

     try:
         base_url = ''.join((
                         smart_unicode(settings.MEDIA_URL),
     try:
         base_url = ''.join((
                         smart_unicode(settings.MEDIA_URL),

-                        smart_unicode(settings.FILEBROWSER_DIRECTORY),
+                        smart_unicode(settings.IMAGE_DIR),

                         smart_unicode(directory)))
 
         base_dir = os.path.join(
                     smart_unicode(settings.MEDIA_ROOT),
                         smart_unicode(directory)))
 
         base_dir = os.path.join(
                     smart_unicode(settings.MEDIA_ROOT),

-                    smart_unicode(settings.FILEBROWSER_DIRECTORY),
+                    smart_unicode(settings.IMAGE_DIR),

                     smart_unicode(directory))
 
         def map_to_url(filename):
                     smart_unicode(directory))
 
         def map_to_url(filename):

-            return "%s/%s" % (base_url, smart_unicode(filename))
+            return urllib.quote("%s/%s" % (base_url, smart_unicode(filename)))

 
         def is_image(filename):
             return os.path.splitext(f)[1].lower() in (u'.jpg', u'.jpeg', u'.png')
 
         images = [map_to_url(f) for f in map(smart_unicode, os.listdir(base_dir)) if is_image(f)]
         images.sort()
 
         def is_image(filename):
             return os.path.splitext(f)[1].lower() in (u'.jpg', u'.jpeg', u'.png')
 
         images = [map_to_url(f) for f in map(smart_unicode, os.listdir(base_dir)) if is_image(f)]
         images.sort()

+

         return JSONResponse(images)
     except (IndexError, OSError):
         logger.exception("Unable to fetch gallery")
         return JSONResponse(images)
     except (IndexError, OSError):
         logger.exception("Unable to fetch gallery")


@@ -346,7 +215,7 @@ def gallery(request, directory):
 
 
 @never_cache
 
 
 @never_cache

-def diff(request, slug, chunk=None):
+def diff(request, doc_id):

     revA = int(request.GET.get('from', 0))
     revB = int(request.GET.get('to', 0))
 
     revA = int(request.GET.get('from', 0))
     revB = int(request.GET.get('to', 0))
 


@@ -356,258 +225,23 @@ def diff(request, slug, chunk=None):
     if revB == 0:
         revB = None
 
     if revB == 0:
         revB = None
 

-    try:
-        doc = Chunk.get(slug, chunk)
-    except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
-        raise Http404
-    docA = doc.at_revision(revA).materialize()
-    docB = doc.at_revision(revB).materialize()
+    # TODO: check if revisions in line.

 
 

-    return http.HttpResponse(nice_diff.html_diff_table(docA.splitlines(),
-                                         docB.splitlines(), context=3))
+    doc = get_object_or_404(Document, pk=doc_id, deleted=False)

 
 

+    # allow diff from the beginning
+    if revA:
+        docA = Revision.objects.get(pk=revA).materialize()
+    else:
+        docA = ""
+    docB = Revision.objects.get(pk=revB).materialize()

 
 

-@never_cache
-def revision(request, slug, chunk=None):
-    try:
-        doc = Chunk.get(slug, chunk)
-    except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
-        raise Http404
-    return http.HttpResponse(str(doc.revision()))
+    return http.HttpResponse(nice_diff.html_diff_table(docA.splitlines(), docB.splitlines(), context=3))

 
 
 @never_cache
 
 
 @never_cache

-def history(request, slug, chunk=None):
+def history(request, doc_id):

     # TODO: pagination
     # TODO: pagination

-    try:
-        doc = Chunk.get(slug, chunk)
-    except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
-        raise Http404
-
-    changes = []
-    for change in doc.history().order_by('-created_at'):
-        changes.append({
-                "version": change.revision,
-                "description": change.description,
-                "author": change.author_str(),
-                "date": change.created_at,
-                "tag": ',\n'.join(unicode(tag) for tag in change.tags.all()),
-            })
-    return JSONResponse(changes)
-
-
-def book(request, slug):
-    book = get_object_or_404(Book, slug=slug)
-
-    # TODO: most of this should go somewhere else
-
-    # do we need some automation?
-    first_master = None
-    chunks = []
-    need_fixing = False
-    choose_master = False
-
-    length = len(book)
-    for i, chunk in enumerate(book):
-        chunk_dict = {
-            "chunk": chunk,
-            "fix": [],
-            "grade": ""
-            }
-        graded = xml_tools.GradedText(chunk.materialize())
-        if graded.is_wl():
-            master = graded.master()
-            if first_master is None:
-                first_master = master
-            elif master != first_master:
-                chunk_dict['fix'].append('bad-master')
-
-            if i > 0 and not graded.has_trim_begin():
-                chunk_dict['fix'].append('trim-begin')
-            if i < length - 1 and not graded.has_trim_end():
-                chunk_dict['fix'].append('trim-end')
-
-            if chunk_dict['fix']:
-                chunk_dict['grade'] = 'wl-fix'
-            else:
-                chunk_dict['grade'] = 'wl'
-
-        elif graded.is_broken_wl():
-            chunk_dict['grade'] = 'wl-broken'
-        elif graded.is_xml():
-            chunk_dict['grade'] = 'xml'
-        else:
-            chunk_dict['grade'] = 'plain'
-            chunk_dict['fix'].append('wl')
-            choose_master = True
-
-        if chunk_dict['fix']:
-            need_fixing = True
-        chunks.append(chunk_dict)
-
-    if first_master or not need_fixing:
-        choose_master = False
-
-    if request.method == "POST":
-        form = forms.ChooseMasterForm(request.POST)
-        if not choose_master or form.is_valid():
-            if choose_master:
-                first_master = form.cleaned_data['master']
-
-            # do the actual fixing
-            for c in chunks:
-                if not c['fix']:
-                    continue
-
-                text = c['chunk'].materialize()
-                for fix in c['fix']:
-                    if fix == 'bad-master':
-                        text = xml_tools.change_master(text, first_master)
-                    elif fix == 'trim-begin':
-                        text = xml_tools.add_trim_begin(text)
-                    elif fix == 'trim-end':
-                        text = xml_tools.add_trim_end(text)
-                    elif fix == 'wl':
-                        text = xml_tools.basic_structure(text, first_master)
-                author = request.user if request.user.is_authenticated() else None
-                description = "auto-fix: " + ", ".join(c['fix'])
-                c['chunk'].commit(text=text, author=author, 
-                    description=description)
-
-            return http.HttpResponseRedirect(book.get_absolute_url())
-    elif choose_master:
-        form = forms.ChooseMasterForm()
-    else:
-        form = None
-
-    return direct_to_template(request, "wiki/book_detail.html", extra_context={
-        "book": book,
-        "chunks": chunks,
-        "need_fixing": need_fixing,
-        "choose_master": choose_master,
-        "first_master": first_master,
-        "form": form,
-    })
-
-
-def chunk_add(request, slug, chunk):
-    try:
-        doc = Chunk.get(slug, chunk)
-    except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
-        raise Http404
-
-    if request.method == "POST":
-        form = forms.ChunkAddForm(request.POST, instance=doc)
-        if form.is_valid():
-            if request.user.is_authenticated():
-                creator = request.user
-            else:
-                creator = None
-            doc.split(creator=creator,
-                slug=form.cleaned_data['slug'],
-                comment=form.cleaned_data['comment'],
-            )
-
-            return http.HttpResponseRedirect(doc.book.get_absolute_url())
-    else:
-        form = forms.ChunkAddForm(initial={
-                "slug": str(doc.number + 1),
-                "comment": "cz. %d" % (doc.number + 1, ),
-        })
-
-    return direct_to_template(request, "wiki/chunk_add.html", extra_context={
-        "chunk": doc,
-        "form": form,
-    })
-
+    doc = get_object_or_404(Document, pk=doc_id, deleted=False)

 
 

-def chunk_edit(request, slug, chunk):
-    try:
-        doc = Chunk.get(slug, chunk)
-    except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
-        raise Http404
-    if request.method == "POST":
-        form = forms.ChunkForm(request.POST, instance=doc)
-        if form.is_valid():
-            form.save()
-            return http.HttpResponseRedirect(doc.book.get_absolute_url())
-    else:
-        form = forms.ChunkForm(instance=doc)
-    return direct_to_template(request, "wiki/chunk_edit.html", extra_context={
-        "chunk": doc,
-        "form": form,
-    })
-
-
-def book_append(request, slug):
-    book = get_object_or_404(Book, slug=slug)
-    if request.method == "POST":
-        form = forms.BookAppendForm(request.POST)
-        if form.is_valid():
-            append_to = form.cleaned_data['append_to']
-            append_to.append(book)
-            return http.HttpResponseRedirect(append_to.get_absolute_url())
-    else:
-        form = forms.BookAppendForm()
-    return direct_to_template(request, "wiki/book_append_to.html", extra_context={
-        "book": book,
-        "form": form,
-    })
-
-
-def book_edit(request, slug):
-    book = get_object_or_404(Book, slug=slug)
-    if request.method == "POST":
-        form = forms.BookForm(request.POST, instance=book)
-        if form.is_valid():
-            form.save()
-            return http.HttpResponseRedirect(book.get_absolute_url())
-    else:
-        form = forms.BookForm(instance=book)
-    return direct_to_template(request, "wiki/book_edit.html", extra_context={
-        "book": book,
-        "form": form,
-    })
-
-
-@require_POST
-@ajax_require_permission('wiki.can_change_tags')
-def add_tag(request, slug, chunk=None):
-    form = forms.DocumentTagForm(request.POST, prefix="addtag")
-    if form.is_valid():
-        try:
-            doc = Chunk.get(slug, chunk)
-        except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
-            raise Http404
-
-        tag = form.cleaned_data['tag']
-        revision = revision=form.cleaned_data['revision']
-        doc.at_revision(revision).tags.add(tag)
-        return JSONResponse({"message": _("Tag added")})
-    else:
-        return JSONFormInvalid(form)
-
-
-"""
-import wlapi
-
-
-@require_POST
-@ajax_require_permission('wiki.can_publish')
-def publish(request, name):
-    name = normalize_name(name)
-
-    storage = getstorage()
-    document = storage.get_by_tag(name, "ready_to_publish")
-
-    api = wlapi.WLAPI(**settings.WL_API_CONFIG)
-
-    try:
-        return JSONResponse({"result": api.publish_book(document)})
-    except wlapi.APICallException, e:
-        return JSONServerError({"message": str(e)})
-"""
-
-def themes(request):
-    prefix = request.GET.get('q', '')
-    return http.HttpResponse('\n'.join([str(t) for t in Theme.objects.filter(name__istartswith=prefix)]))
+    return JSONResponse(get_history(doc))