def get_nodes_by_ids(request):
if request.method == 'POST':
nodes = ContentNode.objects.prefetch_related('children').prefetch_related('files')\
.prefetch_related('assessment_items').prefetch_related('tags').filter(pk__in=json.loads(request.body))\
.defer('node_id', 'original_source_node_id', 'source_node_id', 'content_id', 'original_channel_id', 'source_channel_id', 'source_id', 'source_domain', 'created', 'modified')
return HttpResponse(JSONRenderer().render(
ContentNodeSerializer(nodes, many=True).data))
def get_nodes_by_ids(request, ids):
nodes = ContentNode.objects.prefetch_related('children', 'files', 'assessment_items', 'tags')\
.filter(pk__in=ids.split(","))\
.defer('node_id', 'original_source_node_id', 'source_node_id', 'content_id',
'original_channel_id', 'source_channel_id', 'source_id', 'source_domain', 'created', 'modified')
serializer = ContentNodeSerializer(nodes, many=True)
return Response(serializer.data)
def get_node_path(request):
if request.method == 'POST':
data = json.loads(request.body)
try:
topic = ContentNode.objects.prefetch_related('children').get(
node_id=data['topic_id'], tree_id=data['tree_id'])
if topic.kind_id != content_kinds.TOPIC:
node = ContentNode.objects.prefetch_related('files')\
.prefetch_related('assessment_items')\
.prefetch_related('tags').get(node_id=data['topic_id'], tree_id=data['tree_id'])
nodes = node.get_ancestors(ascending=True)
else:
node = data['node_id'] and ContentNode.objects.prefetch_related('files')\
.prefetch_related('assessment_items')\
.prefetch_related('tags').get(node_id=data['node_id'], tree_id=data['tree_id'])
nodes = topic.get_ancestors(include_self=True, ascending=True)
return HttpResponse(
json.dumps({
'path':
JSONRenderer().render(
ContentNodeSerializer(nodes, many=True).data),
'node':
node and JSONRenderer().render(
ContentNodeEditSerializer(node).data),
'parent_node_id':
topic.kind_id != content_kinds.TOPIC and node.parent
and node.parent.node_id
}))
except ObjectDoesNotExist:
return HttpResponseNotFound(
"Invalid URL: the referenced content does not exist in this channel."
)
def move_nodes(request):
logging.debug("Entering the move_nodes endpoint")
if request.method != 'POST':
return HttpResponseBadRequest(
"Only POST requests are allowed on this endpoint.")
else:
data = json.loads(request.body)
try:
nodes = data["nodes"]
target_parent = ContentNode.objects.get(pk=data["target_parent"])
channel_id = data["channel_id"]
min_order = data.get("min_order") or 0
max_order = data.get("max_order") or min_order + len(nodes)
except KeyError:
return ObjectDoesNotExist(
"Missing attribute from data: {}".format(data))
all_ids = []
with transaction.atomic():
with ContentNode.objects.delay_mptt_updates():
for n in nodes:
min_order = min_order + float(max_order - min_order) / 2
node = ContentNode.objects.get(pk=n['id'])
_move_node(node,
parent=target_parent,
sort_order=min_order,
channel_id=channel_id)
all_ids.append(n['id'])
serialized = ContentNodeSerializer(
ContentNode.objects.filter(pk__in=all_ids), many=True).data
return HttpResponse(JSONRenderer().render(serialized))
def sync_nodes(request):
logging.debug("Entering the sync_nodes endpoint")
if request.method != 'POST':
return HttpResponseBadRequest(
"Only POST requests are allowed on this endpoint.")
else:
data = json.loads(request.body)
try:
nodes = data["nodes"]
channel_id = data['channel_id']
except KeyError:
return ObjectDoesNotExist(
"Missing attribute from data: {}".format(data))
all_nodes = []
with transaction.atomic(), ContentNode.objects.delay_mptt_updates():
for n in nodes:
node, _ = _sync_node(ContentNode.objects.get(pk=n),
channel_id,
sync_attributes=True,
sync_tags=True,
sync_files=True,
sync_assessment_items=True)
if node.changed:
node.save()
all_nodes.append(node)
return HttpResponse(JSONRenderer().render(
ContentNodeSerializer(all_nodes, many=True).data))
def get_node_path(request, topic_id, tree_id, node_id):
try:
topic = ContentNode.objects.prefetch_related('children').get(
node_id__startswith=topic_id, tree_id=tree_id)
if topic.kind_id != content_kinds.TOPIC:
node = ContentNode.objects.prefetch_related(
'files', 'assessment_items',
'tags').get(node_id__startswith=topic_id, tree_id=tree_id)
nodes = node.get_ancestors(ascending=True)
else:
node = node_id and ContentNode.objects.prefetch_related(
'files', 'assessment_items', 'tags').get(
node_id__startswith=node_id, tree_id=tree_id)
nodes = topic.get_ancestors(include_self=True, ascending=True)
return HttpResponse(
json.dumps({
'path':
JSONRenderer().render(
ContentNodeSerializer(nodes, many=True).data),
'node':
node and JSONRenderer().render(
ContentNodeEditSerializer(node).data),
'parent_node_id':
topic.kind_id != content_kinds.TOPIC and node.parent
and node.parent.node_id
}))
except ObjectDoesNotExist:
return HttpResponseNotFound(
"Invalid URL: the referenced content does not exist in this channel."
)
def duplicate_nodes(request):
logging.debug("Entering the copy_node endpoint")
if request.method != 'POST':
return HttpResponseBadRequest(
"Only POST requests are allowed on this endpoint.")
else:
data = json.loads(request.body)
try:
nodes = data["nodes"]
sort_order = data.get("sort_order") or 1
target_parent = data["target_parent"]
channel_id = data["channel_id"]
new_nodes = []
with transaction.atomic():
with ContentNode.objects.disable_mptt_updates():
for node_data in nodes:
new_node = _duplicate_node_bulk(node_data['id'],
sort_order=sort_order,
parent=target_parent,
channel_id=channel_id)
new_nodes.append(new_node.pk)
sort_order += 1
except KeyError:
raise ObjectDoesNotExist(
"Missing attribute from data: {}".format(data))
serialized = ContentNodeSerializer(
ContentNode.objects.filter(pk__in=new_nodes), many=True).data
return HttpResponse(JSONRenderer().render(serialized))
def duplicate_nodes_task(self,
user_id,
channel_id,
target_parent,
node_ids,
sort_order=1):
new_nodes = []
user = User.objects.get(id=user_id)
self.progress = 0.0
self.root_nodes_to_copy = len(node_ids)
self.progress += 10.0
self.update_state(state='STARTED', meta={'progress': self.progress})
with transaction.atomic():
with ContentNode.objects.disable_mptt_updates():
for node_id in node_ids:
new_node = duplicate_node_bulk(node_id,
sort_order=sort_order,
parent=target_parent,
channel_id=channel_id,
user=user,
task_object=self)
new_nodes.append(new_node.pk)
sort_order += 1
return ContentNodeSerializer(ContentNode.objects.filter(pk__in=new_nodes),
many=True).data
def test_fields_are_json_serializable(self):
"""
The serializer should return data that is ready for serialization, and not in 'object' form.
"""
node_ids = ['00000000000000000000000000000003', '00000000000000000000000000000004', '00000000000000000000000000000005']
objects = ContentNodeSerializer(ContentNode.objects.filter(node_id__in=node_ids), many=True).data
for object in objects:
ensure_no_querysets_in_serializer(object)
def test_repr_doesnt_evaluate_querysets(self):
node_ids = [
"00000000000000000000000000000003",
"00000000000000000000000000000004",
"00000000000000000000000000000005",
]
objects = ContentNodeSerializer(
ContentNode.objects.filter(node_id__in=node_ids), many=True
)
object = ContentNodeSerializer(
ContentNode.objects.get(node_id=node_ids[0])
)
# Ensure we don't evaluate querysets when repr is called on a Serializer. See docs for
# no_field_eval_repr in contentcuration/serializers.py for more info.
obj_string = repr(object)
assert "QuerySet" not in obj_string, "object __repr__ contains queryset: {}".format(obj_string)
objs_string = repr(objects)
assert "QuerySet" not in objs_string, "objects __repr__ contains queryset: {}".format(objs_string)
def test_resource_count(self):
topic_tree_node = tree()
query = Metadata(topic_tree_node)
results = query.annotate(**{RESOURCE_COUNT: ResourceCount()})
serialized = ContentNodeSerializer(topic_tree_node).data
self.assertEqual(
serialized.get('metadata').get('resource_count'),
results.get(serialized.get('id')).get(RESOURCE_COUNT))
self.assertEqual(5,
results.get(serialized.get('id')).get(RESOURCE_COUNT))
def test_descendant_count(self):
topic_tree_node = tree()
query = Metadata(topic_tree_node)
results = query.annotate(**{DESCENDANT_COUNT: DescendantCount()})
serialized = ContentNodeSerializer(topic_tree_node).data
self.assertEqual(
serialized.get('metadata').get('total_count'),
results.get(serialized.get('id')).get(DESCENDANT_COUNT))
self.assertEqual(
7,
results.get(serialized.get('id')).get(DESCENDANT_COUNT))
def test_coach_count(self):
topic_tree_node = tree()
nested_topic = topic_tree_node.get_descendants().filter(
kind=content_kinds.TOPIC).first()
self.create_coach_node(nested_topic)
query = Metadata(topic_tree_node)
results = query.annotate(**{COACH_COUNT: CoachCount()})
serialized = ContentNodeSerializer(topic_tree_node).data
self.assertEqual(
serialized.get('metadata').get('coach_count'),
results.get(serialized.get('id')).get(COACH_COUNT))
self.assertEqual(1, results.get(serialized.get('id')).get(COACH_COUNT))
def test_resource_size__topic(self):
topic_tree_node = tree()
nested_topic = topic_tree_node.get_descendants().filter(
kind=content_kinds.TOPIC).first()
self.create_coach_node(nested_topic)
query = Metadata(topic_tree_node)
results = query.annotate(**{RESOURCE_SIZE: ResourceSize()})
serialized = ContentNodeSerializer(topic_tree_node).data
self.assertEqual(
serialized.get('metadata').get('resource_size'),
results.get(serialized.get('id')).get(RESOURCE_SIZE))
self.assertEqual(0,
results.get(serialized.get('id')).get(RESOURCE_SIZE))
def test_assessment_count(self):
tree()
node = ContentNode.objects.get(
node_id='00000000000000000000000000000005')
query = Metadata(node)
results = query.annotate(**{ASSESSMENT_COUNT: AssessmentCount()})
serialized = ContentNodeSerializer(node).data
self.assertEqual(
serialized.get('metadata').get('resource_count'),
results.get(serialized.get('id')).get(ASSESSMENT_COUNT))
self.assertEqual(
3,
results.get(serialized.get('id')).get(ASSESSMENT_COUNT))
def duplicate_node_inline(request):
logging.debug("Entering the copy_node endpoint")
if request.method != 'POST':
return HttpResponseBadRequest(
"Only POST requests are allowed on this endpoint.")
else:
data = json.loads(request.body)
try:
node = ContentNode.objects.get(pk=data["node_id"])
channel_id = data["channel_id"]
target_parent = ContentNode.objects.get(pk=data["target_parent"])
channel = target_parent.get_channel()
request.user.can_edit(channel and channel.pk)
record_node_duplication_stats(
[node], ContentNode.objects.get(pk=target_parent.pk),
Channel.objects.get(pk=channel_id))
new_node = None
with transaction.atomic():
with ContentNode.objects.disable_mptt_updates():
sort_order = (
node.sort_order + node.get_next_sibling().sort_order
) / 2 if node.get_next_sibling() else node.sort_order + 1
new_node = _duplicate_node_bulk(node,
sort_order=sort_order,
parent=target_parent,
channel_id=channel_id,
user=request.user)
if not new_node.title.endswith(_(" (Copy)")):
new_node.title = new_node.title + _(" (Copy)")
new_node.save()
return HttpResponse(JSONRenderer().render(
ContentNodeSerializer(
ContentNode.objects.filter(pk=new_node.pk),
many=True).data))
except KeyError:
raise ObjectDoesNotExist(
"Missing attribute from data: {}".format(data))
def duplicate_nodes(request):
logging.debug("Entering the copy_node endpoint")
if request.method != 'POST':
return HttpResponseBadRequest(
"Only POST requests are allowed on this endpoint.")
data = json.loads(request.body)
try:
nodes = data["nodes"]
sort_order = data.get("sort_order") or 1
channel_id = data["channel_id"]
new_nodes = []
target_parent = ContentNode.objects.get(pk=data["target_parent"])
channel = target_parent.get_channel()
request.user.can_edit(channel and channel.pk)
nodes_being_copied = []
for node_data in nodes:
nodes_being_copied.append(
ContentNode.objects.get(pk=node_data['id']))
# record_node_duplication_stats(nodes_being_copied, ContentNode.objects.get(pk=target_parent.pk),
# Channel.objects.get(pk=channel_id))
with transaction.atomic():
with ContentNode.objects.disable_mptt_updates():
for node_data in nodes:
new_node = duplicate_node_bulk(node_data['id'],
sort_order=sort_order,
parent=target_parent,
channel_id=channel_id,
user=request.user)
new_nodes.append(new_node.pk)
sort_order += 1
except KeyError:
raise ObjectDoesNotExist(
"Missing attribute from data: {}".format(data))
serialized = ContentNodeSerializer(
ContentNode.objects.filter(pk__in=new_nodes), many=True).data
return HttpResponse(JSONRenderer().render(serialized))
def sync_channel_endpoint(request):
logging.debug("Entering the sync_nodes endpoint")
if request.method != 'POST':
return HttpResponseBadRequest(
"Only POST requests are allowed on this endpoint.")
else:
data = json.loads(request.body)
try:
nodes = sync_channel(
Channel.objects.get(pk=data['channel_id']),
sync_attributes=data.get('attributes'),
sync_tags=data.get('tags'),
sync_files=data.get('files'),
sync_assessment_items=data.get('assessment_items'),
sync_sort_order=data.get('sort'),
)
return HttpResponse(JSONRenderer().render(
ContentNodeSerializer(nodes, many=True).data))
except KeyError:
return ObjectDoesNotExist(
"Missing attribute from data: {}".format(data))