def form_valid(self, form):
"""Create a :class:`apps.messaging.models.Message`
and :class:`apps.messaging.models.CollectionRequest`
objects directed to the owner of the collection.
"""
collection = get_object_or_404(Collection,
pk=form.cleaned_data['object_pk'])
project = form.cleaned_data['project']
msg = Message.objects.create(
subject="Request for collections",
text=form.cleaned_data['text'],
user_from=self.request.user,
user_to=collection.owner,
date_sent=datetime_aware(),
message_type=MessageType.COLLECTION_REQUEST)
coll_req = CollectionRequest(name="Request for collections",
user=collection.owner,
user_from=self.request.user,
message=msg,
project=project)
coll_req.save()
coll_req.collections.add(collection)
# send email to the owner of the collection
if collection.owner.userprofile.system_notifications:
send_mail(subject='Request for one of your collections',
message=form.cleaned_data['text'],
from_email=None,
recipient_list=[collection.owner.email],
fail_silently=True)
messages.add_message(self.request, messages.SUCCESS, (
'Your request for the collection <strong>{name}</strong> has been '
'successfully submitted.').format(name=collection.name))
return super(CollectionRequestView, self).form_valid(form)
def _get_random_datetime(cls):
return datetime_aware(data=datetime.datetime(
random.randint(2009, 2014),
random.randint(1, 12),
random.randint(1, 28),
random.randint(0, 23),
random.randint(0, 59),
random.randint(0, 59)
))
def load_research_projects(self):
"""Load example research projects"""
LOGGER.info(u" > research projects...")
users = self.users.keys()
research_project, _created = ResearchProject.objects.get_or_create(
name="ResearchProject1",
owner=self.users['alice'],
status_date=datetime_aware(),
status=ResearchProjectStatus.APPROVED,
)
self.research_project = research_project
def save(self, **kwargs):
"""
If project has been accepted, then accept date is set,
also when project is created, two notifications are sent:
* to user, that project has been created
* to admins, that project has been created and waiting for
approve or decline
"""
if (self.status is not None and self.status_date is None):
self.status_date = datetime_aware()
super(ResearchProject, self).save(**kwargs)
def api_ask_access_context(self, item, user):
"""Method used to determine if other users can ask for permissions
Requests for permissions are allowed only for On demand collections and
asking is allowed once per 24h
"""
is_public = item.is_public
context = {'is_public': is_public}
if not is_public:
if item.can_view(user=user):
context['already_approved'] = True
else:
if user.is_authenticated():
already_approved = user.my_collection_requests.filter(
collections__pk=item.pk,
resolved_at__isnull=False,
is_approved=True).exists()
if already_approved:
context['already_approved'] = already_approved
else:
url = reverse('storage:collection_request',
args=(item.pk, ))
try:
collection_request = \
user.my_collection_requests.filter(
collections__pk=item.pk,
resolved_at__isnull=True
).latest('added_at')
except CollectionRequest.DoesNotExist:
request_status = None
context['url'] = url
else:
# If request is older than time defined in
# settings, then it doesn't matter
diff = (datetime_aware() -
collection_request.added_at)
if diff.seconds > settings.REQUEST_FLOOD_DELAY:
context['url'] = url
request_status = None
else:
request_status = collection_request.added_at
context['delay'] = settings.REQUEST_FLOOD_DELAY / 3600
context['status'] = request_status
return context
def post(self, request, *args, **kwargs):
"""
"""
error_redirect = redirect(
request.META.get('HTTP_REFERER')
or reverse('media_classification:project_index'))
user = request.user
try:
user_classification = UserClassification.objects.get(
pk=kwargs['pk'])
except UserClassification.DoesNotExist:
messages.error(request=request,
message=ClassifyMessages.MSG_CLASSIFICATION_MISSING)
return error_redirect
classification = user_classification.classification
if not classification.can_approve(user=user):
messages.error(request=request,
message=ClassifyMessages.MSG_APPROVE_PERMS)
return error_redirect
classification.status = True
classification.approved_by = user
classification.approved_at = datetime_aware()
classification.approved_source = user_classification
classification.static_attrs = user_classification.static_attrs
classification.save()
classification.dynamic_attrs.all().delete()
for dynamic_attr in user_classification.dynamic_attrs.all():
user_attrs = dynamic_attr.attrs
ClassificationDynamicAttrs.objects.create(
classification=classification, attrs=user_attrs)
messages.success(request=request,
message=ClassifyMessages.MSG_SUCCESS_APPROVED)
return redirect(
reverse('media_classification:classify',
kwargs={
'pk': classification.pk,
}))
def send_create_message(self):
"""Notify all django admins about new project using
:class:`apps.messaging.models.Message` (application messaging)
"""
User = get_user_model()
recipients = User.objects.filter(is_active=True, is_superuser=True)
body_template = (
'New research project has been created. You can approve or reject it '
'by changing its status at:\n'
'{url}').format(url=reverse(
'admin:research_researchproject_change', args=(self.pk, )))
for recipient in recipients:
Message.objects.create(
subject=(u"New research project: <strong>{name}</strong> "
u"created").format(name=self.name),
text=body_template,
user_from=self.owner,
user_to=recipient,
date_sent=datetime_aware(),
message_type=MessageType.RESEARCH_PROJECT_CREATED)
def post(self, request, *args, **kwargs):
"""When a user has enough permissions and filled all neccessery
fields in classification forms then this method is used to save all
provided data to a database object
:class:apps.media_classification.models.UserClassification`.
If a currently logged in user is a Project Admin and decide that
this classification should be approved, then after user classification
is saved, :class:apps.media_classification.models.Classification`
object is updated with current classification data and classification
is marked as approved.
"""
user = self.get_user()
now = datetime_aware()
collection = self.classification.collection
project = self.classification.project
base_resource = self.classification.resource
# If there is no classificator, there is no reason to go further
classificator = project.classificator
if not classificator:
messages.error(request=request,
message=ClassifyMessages.MSG_CLASSIFICATOR_MISSING)
return self.get(request, *args, **kwargs)
is_project_admin = project.is_project_admin(request.user)
# Update classification other user is avaiilable for project admin
if user != request.user and not is_project_admin:
messages.error(request=request,
message=ClassifyMessages.MSG_PERMS_REQUIRED)
return self.get(request, *args, **kwargs)
# If user is not project admin and tries to approve it... Don't let it
if not is_project_admin and 'approve_classification' in request.POST:
messages.error(request=request,
message=ClassifyMessages.MSG_PERMS_REQUIRED)
return self.get(request, *args, **kwargs)
# seems like all base stuff is ok, we can prepare some stuff
resources = {base_resource}
if ('classify_multiple' in request.POST
or 'approve_multiple' in request.POST):
multiple_classify_form = ClassifyMultipleForm(request.POST,
initial={
'collection':
collection,
})
if multiple_classify_form.is_valid():
cleaned_data = multiple_classify_form.cleaned_data
resources.update(cleaned_data['selected_resources'])
else:
messages.error(
request=request,
message=ClassifyMessages.MSG_CLASSIFY_MULTIPLE_FAILED)
return self.get(request, *args, **kwargs)
# finally we got there... we can work with resource(s)!
fields_defs = classificator.prepare_form_fields()
errors = False
for resource in resources:
classification, created = Classification.objects.get_or_create(
resource=resource,
collection=collection,
project=project,
defaults={
'created_at': now,
'owner': user,
'status': ClassificationStatus.REJECTED,
'updated_at': now,
'updated_by': user
})
if not created:
classification.updated_at = now
classification.updated_by = user
classification.save()
user_classification, created = \
UserClassification.objects.get_or_create(
classification=classification,
owner=user,
defaults={
'created_at': now,
'updated_at': now,
}
)
if not created:
user_classification.updated_at = now
dynamic_form = self.get_dynamic_form(
classificator=classificator,
fields_defs=fields_defs,
user_classification=user_classification,
)
static_form = self.get_static_form(
classificator=classificator,
fields_defs=fields_defs,
user_classification=user_classification,
)
if (static_form and not static_form.is_valid()
or dynamic_form and not dynamic_form.is_valid()):
messages.error(request=request,
message=ClassifyMessages.MSG_CLASSIFY_ERRORS)
return self.get(request, *args, **kwargs)
# process data POST'ed by static form
if static_form:
user_classification.static_attrs = static_form.cleaned_data
# Now we should have all required data, so we can save
user_classification.save()
if dynamic_form:
# bulk-delete of old rows
user_classification.dynamic_attrs.all().delete()
# populate new ones
for form in dynamic_form.forms:
attrs = UserClassificationDynamicAttrs.objects.create(
userclassification=user_classification,
attrs=form.cleaned_data)
# If processed resource is currently classified one, then
# check if it shouldn't be approved
if ((resource == base_resource
and 'approve_classification' in request.POST)
or ('approve_multiple' in request.POST)):
if classification.project.is_project_admin(user=user):
classification.status = True
classification.approved_by = user
classification.approved_at = datetime_aware()
classification.approved_source = user_classification
if static_form:
classification.static_attrs = static_form.cleaned_data
classification.save()
classification.dynamic_attrs.all().delete()
for attr in user_classification.dynamic_attrs.all():
user_attrs = attr.attrs
ClassificationDynamicAttrs.objects.create(
classification=classification, attrs=user_attrs)
else:
messages.error(request=request,
message=ClassifyMessages.MSG_APPROVE_PERMS)
return self.get(request, *args, **kwargs)
messages.success(request=request, message=ClassifyMessages.MSG_SUCCESS)
return redirect(
reverse('media_classification:classify_user',
kwargs={
'pk': classification.pk,
'user_pk': user.pk
}))
def post(self, request, *args, **kwargs):
"""
`request.POST` method is used to create sequences for given
list of resources using AJAX.
List of project pks is passed in `pks` key as list of integers
separated by comma.
Sequence can be created for multiple resources that belong to the
same classification project collection within classification project.
Response contains status of creation/update and serialized sequence
object.
"""
msg = 'Invalid request'
status = False
record = None
collection = None
sequence_original = None
collection_pk = request.POST.get('collection_pk') or None
resources = request.POST.get('resources') or None
sequence_pk = request.POST.get('pk') or None
if collection_pk and resources:
collection = self.get_collection(collection_pk=collection_pk)
if collection:
resources = self.get_resources(collection=collection,
resource_pks=resources)
if collection:
project = collection.project
if project.can_change_sequence(user=request.user):
if resources:
description = request.POST.get('description', None)
try:
sequence = Sequence.objects.get(pk=sequence_pk)
sequence_original = sequence
except Sequence.DoesNotExist:
sequence = Sequence(
collection=collection,
created_by=request.user,
created_at=datetime_aware(),
description=description,
)
else:
sequence.description = description
sequence.save()
try:
seq_resources = []
for resource in resources:
obj = SequenceResourceM2M(sequence=sequence,
resource=resource)
obj.full_clean()
seq_resources.append(obj)
except ValidationError, e:
if sequence_original:
sequence = sequence_original
sequence.save()
else:
sequence.delete()
msg = e.messages[0]
else:
sequence.resources.clear()
for obj in seq_resources:
obj.save()
record = SequenceReadSerializer(instance=sequence,
context={
'request':
self.request
}).data
status = True
# update classification objects with
# sequence data
sequence.classifications.clear()
classifications = Classification.objects.filter(
collection=collection, resource__in=resources)
classifications.update(sequence=sequence)
else:
msg = 'You have not enough permissions to change sequence'