def getSimilarByKeywords(material_id, version):
"""Returns list of similar materials getting by comparing keywords"""
# why possibly version gets nothing as value?
if not version:
version = models.getMaterialLatestVersion(material_id)
try:
weight_list = {}
material = models.Material.objects.filter(
material_id=material_id,
version=version).values('keywords')[0]
# build the keyword query
keywords = material.get('keywords', '')
keywords = keywords.split('\n')
for kw in keywords:
objs = models.Material.objects.exclude(material_id=material_id).\
filter(keywords__contains=kw).values('material_id', 'title')
m_list = [(item['material_id'], item['title']) for item in objs]
for m_item in m_list:
mid = m_item[0]
if not weight_list.has_key(mid):
item_dict = {'material_id': m_item[0], 'title': m_item[1]}
weight_list[mid] = [0, item_dict]
weight_list[mid][0] += SM_WEIGHT_KEYWORD
# sort by weights then limit the results
couples = weight_list.values()
couples.sort(reverse=True)
result = [item[1] for item in couples[:10]]
except:
raise404(request, 404)
return result
def listMaterialFiles(request, *args, **kwargs):
"""Lists all files attached to the specific material, except the material image
"""
material_id = kwargs.get('mid', None)
version = kwargs.get('version', None)
# why possibly version gets nothing as value?
if not version:
version = models.getMaterialLatestVersion(material_id)
file_ids = models.listMaterialFiles(material_id, version)
return Response(file_ids)
def put(self, request, *args, **kwargs):
""" Check in a material """
try:
serializer = self.get_serializer(data=request.DATA)
response = None
if serializer.is_valid():
# check if valid editor or new material will be created
sobj = serializer.object
sobj.material_id = material_id = kwargs['mid']
# special update or checkin?
if request.GET.get('magic-update', None):
sobj.version = current_version = int(kwargs['version'])
res = models.deleteMaterial(material_id, current_version)
if not res:
raise # 404
else:
last_version = models.getMaterialLatestVersion(sobj.material_id)
try:
sobj.version = last_version + 1
except AttributeError:
sobj.version = 1
self.pre_save(sobj)
self.object = serializer.save()
# update the person and roles
models.setMaterialPersons(self.object.id, request.DATA)
# add the attached image manually
self.object.image = request.FILES.get('image', None)
self.object.save()
# next, add all other files submitted
material_id = self.object.material_id
material_version = self.object.version
for key in request.FILES.keys():
if key == 'image': continue
mfile = models.MaterialFile()
mfile.material_id = material_id
mfile.version = material_version
file_content = request.FILES.get(key, None)
mfile.mfile = file_content
mfile.name = request.FILES[key].name
mfile.description = request.DATA.get(key+'_description', '')
mfile.mime_type = mimetypes.guess_type(
os.path.realpath(mfile.mfile.name))[0] or ''
mfile.save()
# (module/collection) create the zip package and post to vpt
try:
if not request.DATA.get('export-later', 0):
requestMaterialPDF(self.object)
except:
pass
response = Response(serializer.data, status=status.HTTP_201_CREATED)
else:
response = Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
return response
except:
raise404(request)
