def submit(request, task_id=None, solution_id=None):
if solution_id:
solution = get_object_or_404(Solution, pk=solution_id)
if not solution.can_edit(request.user):
return (403, u'Not allowed to edit the solution!')
task = solution.task
edit = True
elif task_id:
task = get_object_or_404(Task, pk=task_id)
edit = False
else:
return 404
if not task.solvable:
return (403, u'This task is not solvable!')
if not task.is_allowed_to_solve(request.user):
return (403, u'You are not allowed to send solutions for this task.')
if not edit:
solution, dummy = Solution.objects.get_or_create(
task=task, author=request.user)
math_content = solution.content
if request.method == 'POST':
math_content_form = MathContentForm(request.POST, instance=math_content)
if math_content_form.is_valid():
math_content = math_content_form.save()
was_solved = solution.is_solved()
solution.content = math_content
solution.status = SolutionStatus.SUBMITTED
solution.date_created = datetime.now()
solution.save()
if not edit:
_action.replace_or_add(request.user, _action.SOLUTION_SUBMIT,
action_object=solution, target=task)
# update solved count if necessary
delta = solution.is_solved() - was_solved
if delta:
_update_solved_count(delta, task, request.user.get_profile())
return ("/solution/%d/" % (solution.id,),)
else:
math_content_form = MathContentForm(instance=math_content)
math_content_form.fields['text'].widget.attrs['placeholder'] = 'Rješenje'
return {
'action_url': request.path,
'form': math_content_form,
'task': task,
}
def add_post(request):
reply_to_id = request.POST['post_reply_id']
reply_to = None if not reply_to_id else get_object_or_404(
Post.objects.select_related('author'), pk=reply_to_id)
math_content_form = MathContentForm(request.POST)
if math_content_form.is_valid():
content_type = get_object_or_404(ContentType,
pk=request.POST['content_type_id'])
try:
object = content_type.get_object_for_this_type(
pk=request.POST['object_id'])
except:
raise Http404('Object does not exist.')
if hasattr(object, 'can_send_post'):
if not object.can_send_post(request.user):
return HttpResponseForbidden(
"You are not allowed to send messages to this object!")
object_author = getattr(object, 'author', None)
object_author_id = None
object_author_group = None
if object_author:
object_author_id = object_author.id
try:
object_author_group = Group.objects.get(
name=object_author.username)
except Group.DoesNotExist:
pass
# TODO: report error
content = math_content_form.save()
post = Post.objects.create(content_object=object, author=request.user,
last_edit_by=request.user, content=content)
post.save()
if reply_to:
try:
reply_to_author_group = Group.objects.get(
name=reply_to.author.username)
except Group.DoesNotExist:
pass
# TODO: report error
else:
reply_to_author_group = None
_action.add(request.user, _action.POST_SEND, action_object=post,
target=object, group=reply_to_author_group)
return HttpResponseRedirect(request.POST['post_redirect'])
def edit_post(request, post_id=None):
post = get_object_or_404(Post, pk=post_id)
if not post.can_edit(request.user):
return HttpResponseForbidden('Not allowed to edit this post.')
if request.method == 'POST':
math_content_form = MathContentForm(request.POST, instance=post.content)
if math_content_form.is_valid():
content = math_content_form.save()
post.last_edit_by = request.user
post.save()
return HttpResponseRedirect(request.POST.get('next', '/'))
return render_to_response('post_edit.html', {
'next': request.GET.get('next', '/'),
'math_content_form': MathContentForm(instance=post.content),
'post': post,
}, context_instance=RequestContext(request),
)
def new(request, group_id=None):
if group_id:
group = get_object_or_404(
Group.objects.select_related('data', 'data__description'),
id=group_id)
if not group.data:
return (400, 'You can\'t edit your own private user-group (or there is some data error).')
usergroup = group.data
# https://code.djangoproject.com/ticket/7190
# (fixed in later versions of Django...)
usergroup.hidden = bool(usergroup.hidden)
perm = group.get_user_permissions(request.user)
is_member = is_group_member(group.id, request.user.id)
if EDIT not in perm:
return (403, 'You do not have permission to edit this group\'s details.')
description = usergroup.description
edit = True
else:
group = usergroup = description = None
is_member = False
edit = False
POST = request.POST if request.method == 'POST' else None
group_form = GroupForm(POST, instance=group, prefix='x')
usergroup_form = UserGroupForm(POST, instance=usergroup, prefix='y')
description_form = MathContentForm(POST, instance=description, prefix='z')
if request.method == 'POST':
if group_form.is_valid() and usergroup_form.is_valid() \
and description_form.is_valid():
group = group_form.save()
description = description_form.save();
usergroup = usergroup_form.save(commit=False)
usergroup.description = description
if not edit:
usergroup.group = group
usergroup.author = request.user
# Permissions assigned to the whole group (each member).
# Every group member has perm to view the group itself.
ObjectPermission.objects.create(content_object=group,
group=group, permission_type=VIEW)
usergroup.save()
return ('/usergroup/%d/' % group.id, )
else: # reset necessary instances...
group = get_object_or_404(Group.objects.select_related(
'data', 'data__description'), id=group_id)
return ('usergroup_new.html', {
'can_edit': True,
'group': group,
'edit': edit,
'is_member': is_member,
'new_group': not edit,
'forms': [group_form, usergroup_form, description_form],
})
def new(request, task_id=None, is_file=None, is_lecture=None):
"""
New Task and Edit Task
+ New TaskFile and Edit TaskFile
"""
content_type = ContentType.objects.get_for_model(Task)
if task_id:
task = get_object_or_404(Task.objects.select_related('content'), pk=task_id)
perm = task.get_user_permissions(request.user)
if EDIT not in perm:
return 403
math_content = task.content
edit = True
is_file = task.is_file()
is_lecture = task.is_lecture
else:
perm = []
task = math_content = None
edit = False
# Make sure each lecture is a file.
assert is_lecture and is_file or not is_lecture
form_class = TaskLectureForm if is_lecture \
else (TaskFileForm if is_file else TaskForm)
math_content_label = 'Opis' if is_file else None # else default
if request.method == 'POST':
old_hidden = getattr(task, 'hidden', -1)
old_solvable = getattr(task, 'solvable', -1)
# Files can have blank description (i.e. math content)
task_form = form_class(request.POST, instance=task, user=request.user)
math_content_form = MathContentForm(request.POST, instance=math_content,
blank=is_file, label=math_content_label, auto_preview=False)
attachment_form = is_file and not edit \
and AttachmentForm(request.POST, request.FILES)
if task_form.is_valid() and math_content_form.is_valid() \
and (not attachment_form or attachment_form.is_valid()):
task = task_form.save(commit=False)
math_content = math_content_form.save()
if not edit:
if attachment_form:
attachment, attachment_form = check_and_save_attachment(
request, math_content)
task.file_attachment = attachment # This is a file.
path = attachment.get_full_path_and_filename()
try:
thumbnail_path = create_file_thumbnail(path)
task.cache_file_attachment_thumbnail_url = \
media_path_to_url(thumbnail_path)
except ThumbnailRenderingException:
pass
# Immediately remember file url, so that we don't have to
# access Attachment table to show the link.
task.cache_file_attachment_url = attachment.get_url()
else:
task.file_attachment = None # This is a task.
if is_file:
task.cache_file_attachment_url = task.file_attachment.get_url()
if not edit:
task.author = request.user
task.content = math_content
task.save()
# Do not call task_form.save_m2m()!
set_tags(task, task_form.cleaned_data['tags'])
# TODO: signals!
if not edit or old_hidden != task.hidden \
or old_solvable != task.solvable: \
invalidate_folder_cache_for_task(task)
# send action if creating a new nonhidden task
if not edit:
# TODO: signals!
type = _action.LECTURE_ADD if is_lecture \
else (_action.FILE_ADD if is_file else _action.TASK_ADD)
_action.add(request.user, type,
action_object=task, target=task)
# TODO: izbrisati task_new_finish.html i url
#return HttpResponseRedirect('/task/%d/' % task.id if edit else '/task/new/finish/')
return HttpResponseRedirect(task.get_absolute_url())
else:
task_form = form_class(instance=task)
math_content_form = MathContentForm(instance=math_content,
blank=is_file, label=math_content_label, auto_preview=False)
attachment_form = is_file and not edit and AttachmentForm()
forms = [task_form, math_content_form]
if attachment_form:
forms.append(attachment_form)
data = get_task_folder_data(task, request.user) if task else {}
data.update({
'action_url': request.path,
'bulk_add_url': '/task/new/bulk/',
'can_edit_permissions': EDIT_PERMISSIONS in perm,
'content_type': content_type,
'edit': edit,
'forms': forms,
'is_file': is_file,
'is_lecture': is_lecture,
'lectures_folder_url': settings.LECTURES_FOLDER_URL,
'task_name': task.name if task else None, # Convenience.
'task': task,
})
return data