def list_requests(self, status, sort_by = None, sort_descending = None):
"""
Retrieve the list of requests
PARAMETERS:
* status: filter requests by status
"""
query = RequestEntity.all().filter('status =', status)
sign = sort_descending and '-' or ''
if sort_descending is None:
sort_descending = False
if sort_by == RequestSortOrder.REQUESTOR:
requests = query.order('%srequestor' % sign).fetch(1000)
elif sort_by == RequestSortOrder.RANK:
requests = query.fetch(1000)
requests.sort(key = lambda request: request.requestor.rank, reverse = sort_descending)
elif sort_by == RequestSortOrder.CATEGORY:
requests = query.fetch(1000)
requests.sort(key = lambda request: request.category.category, reverse = sort_descending)
elif sort_by == RequestSortOrder.SUBMITTED_ON:
requests = query.order('%ssubmitted_on' % sign).fetch(1000)
else:
requests = query.fetch(1000)
return requests
