def q_customization_delete(request):
valid_request, msg = validate_request(request)
if not valid_request:
return HttpResponseForbidden(msg)
customization_id = request.POST.get("customization_id")
try:
customization = QModelCustomization.objects.get(id=customization_id)
except QModelCustomization.DoesNotExist:
msg = u"Unable to locate customization w/ id '%s'" % customization_id
return HttpResponseBadRequest(msg)
if customization.is_default:
msg = u"You cannot delete the default customization."
return HttpResponseBadRequest(msg)
delete_customization_set(customization)
try:
customization.refresh_from_db()
msg = "Error deleting customization"
messages.add_message(request, messages.ERROR, msg)
except QModelCustomization.DoesNotExist:
msg = "You have successfully deleted this customization."
messages.add_message(request, messages.INFO, msg)
return JsonResponse({"msg": msg})
def q_proxy(request):
valid_request, msg = validate_request(request)
if not valid_request:
return HttpResponseForbidden(msg)
url = request.POST.get("url")
response_format = request.POST.get("response_format", "HTTP")
if urlparse(url).netloc not in VALID_DOMAINS:
return HttpResponseBadRequest("invalid proxy url '{0}'".format(url))
try:
response = urllib2.urlopen(url)
content = response.read()
except urllib2.URLError as e:
return HttpResponseBadRequest("unable to reach url '{0}': {1}".format(url, e))
if response_format.upper() == "HTTP":
return HttpResponse(content)
elif response_format.upper() == "JSON":
json_content = json.loads(content)
return JsonResponse(json_content)
else:
return HttpResponseBadRequest("unknown response_format: '{0}'".format(response_format))
def q_proxy(request):
valid_request, msg = validate_request(request)
if not valid_request:
return HttpResponseForbidden(msg)
url = request.POST.get("url")
response_format = request.POST.get("response_format", "HTTP")
if urlparse(url).netloc not in VALID_DOMAINS:
return HttpResponseBadRequest("invalid proxy url '{0}'".format(url))
try:
response = urlopen(url)
content = response.read()
except URLError as e:
return HttpResponseBadRequest("unable to reach url '{0}': {1}".format(
url, e))
if response_format.upper() == "HTTP":
return HttpResponse(content)
elif response_format.upper() == "JSON":
json_content = json.loads(content)
return JsonResponse(json_content)
else:
return HttpResponseBadRequest(
"unknown response_format: '{0}'".format(response_format))
def q_validate(request):
valid_request, msg = validate_request(request)
if not valid_request:
return HttpResponseForbidden(msg)
old_value = request.POST.get('old_value')
new_value = request.POST.get('new_value')
validator_name = request.POST.get('validator')
if not validator_name:
msg = "missing validator name"
return HttpResponseBadRequest(msg)
try:
validator = getattr(q_utils, validator_name)
except AttributeError:
msg = "invalid validator name"
return HttpResponseBadRequest(msg)
try:
is_valid = validator(new_value)
if is_valid is not False:
return JsonResponse(True, safe=False)
except ValidationError:
pass
return JsonResponse(False, safe=False)
def q_send_email_confirmation(request):
valid_request, msg = validate_request(request)
if not valid_request:
return HttpResponseForbidden(msg)
username = request.POST.get("username")
try:
user = User.objects.get(username=username)
except User.DoesNotExist:
msg = "Unable to locate user '{0}'.".format(username)
messages.add_message(request, messages.ERROR, msg)
return HttpResponseBadRequest(msg)
current_user = request.user
if not current_user.is_superuser and current_user.username != username:
msg = "You do not have authority to validate this user's email."
messages.add_message(request, messages.ERROR, msg)
return HttpResponseBadRequest(msg)
try:
send_email_confirmation(request, user)
except Exception as e:
msg = "Error sending confirmation email."
messages.add_message(request, messages.ERROR, msg)
return HttpResponseBadRequest(msg)
return JsonResponse({})
def q_realization_remove_relationship_value(request):
# check the request was valid...
valid_request, msg = validate_request(request)
if not valid_request:
return HttpResponseForbidden(msg)
target_index = request.POST.get("target_index")
target_key = request.POST.get("target_key")
property_key = request.POST.get("key")
session_key = get_key_from_request(request)
cached_realizations_key = "{0}_realizations".format(session_key)
cached_realizations = get_cached_object(request.session, cached_realizations_key)
if not cached_realizations:
msg = "unable to locate cached_realizations"
return HttpResponseBadRequest(msg)
# do some sanity checks...
# check the realization to remove from exists...
property_realization = get_property_realization_by_key(property_key, cached_realizations)
if not property_realization:
msg = "unable to find a QPropertyRealization with a key of '{0}'".format(property_key)
return HttpResponseBadRequest(msg)
# check that the target to remove exists...
target_realizations = property_realization.relationship_values(manager="allow_unsaved_relationship_values_manager").filter_potentially_unsaved(key=target_key)
if len(target_realizations) != 1:
msg = "unable to find a QModelProxy with a key of '{0}'".format(target_key)
return HttpResponseBadRequest(msg)
target_realization = target_realizations[0]
# check that it makes sense to remove this target...
if property_realization.relationship_values(manager="allow_unsaved_relationship_values_manager").count() <= property_realization.cardinality_min:
msg = "you have cannot remove this many QModelRealizations from this this QPropertyRealization"
return HttpResponseBadRequest(msg)
# check the user has permission to modify the realization...
current_user = request.user
project = cached_realizations.project
if project.authenticated:
if not current_user.is_authenticated() or not is_member_of(current_user, project):
msg = "{0} does not have permission to modify a realization".format(current_user)
return HttpResponseForbidden(msg)
# ...okay, sanity checks are over
# now remove the target...
property_realization.relationship_values(manager="allow_unsaved_relationship_values_manager").remove_potentially_unsaved(target_realization)
if target_realization.is_existing:
target_realization.delete()
request.session[cached_realizations_key] = cached_realizations
# finally return a success msg...
msg = "Successfully removed object"
return JsonResponse({"msg": msg})
def q_realization_add_relationship_value(request):
valid_request, msg = validate_request(request)
if not valid_request:
return HttpResponseForbidden(msg)
target_proxy_id = request.POST.get("target_proxy_id")
property_key = request.POST.get("key")
session_key = get_key_from_request(request)
cached_realizations_key = "{0}_realizations".format(session_key)
cached_realizations = get_cached_object(request.session, cached_realizations_key)
if not cached_realizations:
msg = "unable to locate cached_realizations"
raise QError(msg)
property = get_property_realization_by_fn(
lambda r: r.get_key() == property_key,
cached_realizations
)
if not property:
raise QError("unable to find property w/ key='{0}'".format(property_key))
target_proxy = QModelProxy.objects.get(id=target_proxy_id)
new_model_realization = get_new_realizations(
project=cached_realizations.project,
ontology=cached_realizations.ontology,
model_proxy=target_proxy,
key=target_proxy.name,
)
# double-check that adding this model to this property makes sense...
assert target_proxy in property.proxy.relationship_target_models.all()
assert property.get_cardinality_max() == '*' or property.relationship_values(manager="allow_unsaved_relationship_values_manager").count() < int(property.get_cardinality_max())
# add the model...
property.relationship_values(manager="allow_unsaved_relationship_values_manager").add_potentially_unsaved(new_model_realization)
with allow_unsaved_fk(QModel, ["relationship_property"]):
# in theory, Django doesn't store unsaved relationship
# the custom manager above gets around this for the m2m relationship (property to model) and it is what I ought to use
# however, in order to work my way up the realization hierarchy I need access to the reverse of that relationship
# which is a fk relationship; hence this extra bit of code (which only exists so that "model_realizations.py#QRealization.get_parent_model_realization" works)
new_model_realization.relationship_property = property
# re-cache the changed realizations...
request.session[cached_realizations_key] = cached_realizations
# and return a serialized version of that model...
new_model_realization_serialization = serialize_new_realizations(new_model_realization)
return JsonResponse(new_model_realization_serialization)
def q_project_join_request(request, project_name=None):
"""
processes a join request
:param request:
:param project_name:
:return:
"""
valid_request, msg = validate_request(request)
if not valid_request:
return HttpResponseForbidden(msg)
try:
project = QProject.objects.get(name=project_name)
except QProject.DoesNotExist:
msg = u"Unable to locate project '%s'" % project_name
return HttpResponseBadRequest(msg)
if not project.is_active:
msg = u"This project has been disabled."
return HttpResponseBadRequest(msg)
user_id = request.POST.get("user_id")
try:
user = User.objects.get(pk=user_id)
except User.DoesNotExist:
msg = u"Unable to locate user"
return HttpResponseBadRequest(msg)
was_already_pending = False
if is_pending_of(user, project):
was_already_pending = True
if project_join_request(project, user, site=request.current_site):
msg = "Your request has been sent to the project administrator for review"
if was_already_pending:
msg += " again.<p><em>You have sent this request before. Please contact the project administrator [<a href='mailto:{email}'>{email}</a>] if things are moving too slowly</em>.</p>".format(
email=project.email
)
else:
msg += "."
messages.add_message(request, messages.INFO, msg)
else:
msg = "Error sending project join request."
messages.add_message(request, messages.ERROR, msg)
return JsonResponse({"msg": msg})
def q_realization_remove_relationship_value(request):
valid_request, msg = validate_request(request)
if not valid_request:
return HttpResponseForbidden(msg)
target_index = int(request.POST.get("target_index"))
property_key = request.POST.get("key")
session_key = get_key_from_request(request)
cached_realizations_key = "{0}_realizations".format(session_key)
cached_realizations = get_cached_object(request.session, cached_realizations_key)
if not cached_realizations:
msg = "unable to locate cached_realizations"
raise QError(msg)
property = get_property_realization_by_fn(
lambda r: r.get_key() == property_key,
cached_realizations
)
if not property:
raise QError("unable to find property w/ key='{0}'".format(property_key))
# remove the model...
try:
target_to_remove = property.relationship_values(manager="allow_unsaved_relationship_values_manager").all()[target_index]
property.relationship_values(manager="allow_unsaved_relationship_values_manager").remove_potentially_unsaved(target_to_remove)
if target_to_remove.is_existing():
target_to_remove.delete()
except IndexError:
raise QError("unable to find target of {0} at index {1}".format(property, target_index))
# re-cache the changed realizations...
request.session[cached_realizations_key] = cached_realizations
# and return a success msg...
msg = "Successfully removed object"
# (don't need to explicitly render this msg using Django messaging framework)
# (b/c it will be obvious to the user that a model was removed since a subform will dissappear)
# (and, anyway, there is no corresponding msg that is used when a model is added to a property)
# messages.add_message(request, messages.SUCCESS, msg)
return JsonResponse({"msg": msg})
def q_project_add_member(request, project_name=None):
"""
approve a project join request
:param request:
:param project_name:
:return:
"""
valid_request, msg = validate_request(request)
if not valid_request:
return HttpResponseForbidden(msg)
try:
project = QProject.objects.get(name=project_name)
except QProject.DoesNotExist:
msg = u"Unable to locate project '%s'" % project_name
return HttpResponseBadRequest(msg)
if not project.is_active:
msg = u"This project has been disabled."
return HttpResponseBadRequest(msg)
user_id = request.POST.get("user_id")
try:
user = User.objects.get(pk=user_id)
except User.DoesNotExist:
msg = u"Unable to locate user"
return HttpResponseBadRequest(msg)
if not is_admin_of(request.user, project):
msg = u"This user has not requested to join this project"
return HttpResponseBadRequest(msg)
if not is_pending_of(user, project):
msg = u"This user has not requested to join this project"
return HttpResponseBadRequest(msg)
if project_join(project, user, site=request.current_site):
serialized_user = QProjectUserSerializer(user).data
return JsonResponse(serialized_user)
else:
msg = "Error adding user to project."
messages.add_message(request, messages.ERROR, msg)
return JsonResponse({"msg": msg})
def q_customization_delete(request):
# check the request was valid...
valid_request, msg = validate_request(request)
if not valid_request:
return HttpResponseForbidden(msg)
# check the requested customization exists...
customization_id = request.POST.get("customization_id")
try:
customization = QModelCustomization.objects.get(id=customization_id)
project = customization.project
except QModelCustomization.DoesNotExist:
msg = u"Unable to locate customization w/ id '%s'" % customization_id
return HttpResponseBadRequest(msg)
# check the user has permission to delete the customization...
current_user = request.user
if project.authenticated:
if not current_user.is_authenticated() or not is_admin_of(current_user, project):
msg = "{0} does not have permission to delete {1}".format(current_user, customization)
return HttpResponseForbidden(msg)
# check the customization can be deleted...
if customization.is_default:
msg = u"You cannot delete the default customization."
return HttpResponseBadRequest(msg)
# delete it!
customization.delete()
# make sure the customization no loner exists...
try:
customization.refresh_from_db()
msg = "Error deleting customization"
messages.add_message(request, messages.ERROR, msg)
except QModelCustomization.DoesNotExist:
msg = "You have successfully deleted this customization."
messages.add_message(request, messages.INFO, msg)
return JsonResponse({"msg": msg})
def q_load_section(request, section_type=None):
valid_request, msg = validate_request(request)
if not valid_request:
return HttpResponseForbidden(msg)
try:
section_info = SECTION_MAP[section_type]
except KeyError:
msg = "I don't know how to render a section w/ type '{0}'".format(section_type)
return HttpResponseBadRequest(msg)
model_index = request.POST.get("index")
model_key = request.POST.get("key")
model_scope = request.POST.get("scope")
session_key = get_key_from_request(request)
cached_models_key = section_info["cached_models_key"].format(session_key=session_key)
cached_models = get_cached_object(request.session, cached_models_key)
if not cached_models:
msg = "unable to locate cached_models"
raise QError(msg)
get_model_fn = section_info["get_model_fn"]
model = get_model_fn(model_key, cached_models)
if not model:
raise QError("unable to find instance w/ key='{0}'".format(model_key))
template_context = {}
for context_key, context_value in section_info.get("template_context").iteritems():
form_class = context_value["class"]
template_context[context_key] = form_class(
instance=model,
name=context_value["name"].format(safe_key=model_key.replace('-', '_')),
scope_prefix=context_value["scope_prefix"].format(index=model_index)
)
template = "{0}/sections/{1}".format(APP_LABEL, section_info["template"])
return render_to_response(template, template_context, context_instance=RequestContext(request))
def q_document_publish(request):
valid_request, msg = validate_request(request)
if not valid_request:
return HttpResponseForbidden(msg)
model_id = request.POST.get("document_id")
try:
# model = QModel.objects.get(id=model_id)
model = MetadataModel.objects.get(id=model_id)
# except QModel.DoesNotExist:
except MetadataModel.DoesNotExist:
msg = u"Unable to locate model w/ id '%s'" % model_id
return HttpResponseBadRequest(msg)
# if not model.is_active:
if not model.active:
msg = u"This model has been disabled."
return HttpResponseBadRequest(msg)
if not model.is_document and model.is_root:
msg = u"This model is not a root document."
return HttpResponseBadRequest(msg)
if not model.is_complete():
msg = u"This model is incomplete."
return HttpResponseBadRequest(msg)
publication = model.publish(force_save=True)
if publication:
msg = "You have successfully published this document."
messages.add_message(request, messages.INFO, msg)
else:
msg = "Error publishing document."
messages.add_message(request, messages.ERROR, msg)
return JsonResponse({"msg": msg})
def q_realization_add_relationship_value(request):
# check the request was valid...
valid_request, msg = validate_request(request)
if not valid_request:
return HttpResponseForbidden(msg)
target_proxy_id = request.POST.get("target_proxy_id")
property_key = request.POST.get("key")
session_key = get_key_from_request(request)
cached_realizations_key = "{0}_realizations".format(session_key)
cached_realizations = get_cached_object(request.session, cached_realizations_key)
if not cached_realizations:
msg = "unable to locate cached_realizations"
return HttpResponseBadRequest(msg)
# do some sanity checks...
# check the realization to add to exists...
property_realization = get_property_realization_by_key(property_key, cached_realizations)
if not property_realization:
msg = "unable to find a QPropertyRealization with a key of '{0}'".format(property_key)
return HttpResponseBadRequest(msg)
# check that the target to add exists...
try:
target_proxy = QModelProxy.objects.get(id=target_proxy_id)
except QModelProxy.DoesNotExist:
msg = "unable to find a QModelProxy with an id of '{0}'".format(target_proxy_id)
return HttpResponseBadRequest(msg)
# check that it makes sense to add this target...
if target_proxy not in property_realization.proxy.relationship_target_models.all():
msg = "you are trying to add the wrong type of QModelRealization to this QPropertyRealization"
return HttpResponseBadRequest(msg)
if (not property_realization.is_infinite) and (property_realization.relationship_values(manager="allow_unsaved_relationship_values_manager").count() >= property_realization.cardinality_max):
msg = "you have already added the maximum amount of QModelRealizations to this QPropertyRealization"
return HttpResponseBadRequest(msg)
# check the user has permission to modify the realization...
current_user = request.user
project = cached_realizations.project
if project.authenticated:
if not current_user.is_authenticated() or not is_member_of(current_user, project):
msg = "{0} does not have permission to modify a realization".format(current_user)
return HttpResponseForbidden(msg)
# ...okay, sanity checks are over
# now create the model...
new_model_realization = get_new_realizations(
project=project,
ontology=target_proxy.ontology,
model_proxy=target_proxy,
key=target_proxy.name,
)
# now add the model...
property_realization.relationship_values(manager="allow_unsaved_relationship_values_manager").add_potentially_unsaved(new_model_realization)
with allow_unsaved_fk(QModelRealization, ["relationship_property"]):
# the custom manager above ("allow_unsaved_relationship_values_manager") lets me cope w/ an unsaved m2m relationship - it is what I ought to use
# however, some fns ("QRealization.get_root_realization") needs access to the reverse of that relationship; hence this extra bit of code
new_model_realization.relationship_property = property_realization
request.session[cached_realizations_key] = cached_realizations
# finally return a serialized version of that model...
new_model_realization_serialization = serialize_realizations(new_model_realization)
return JsonResponse(new_model_realization_serialization)
