def start(request, *args, **kwargs):
"""Starts the task to find all duplicate proposals which are about to be
accepted for a single GSoCProgram.
Expects the following to be present in the POST dict:
program_key: Specifies the program key name for which to find the
duplicate proposals
repeat: Specifies if a new task that must be performed again an hour
later, with the same POST data
Args:
request: Django Request object
"""
from soc.logic.helper import timeline as timeline_helper
post_dict = request.POST
# retrieve the program_key and survey_key from POST data
program_key = post_dict.get('program_key')
repeat = post_dict.get('repeat')
if not (program_key and repeat):
# invalid task data, log and return OK
return error_handler.logErrorAndReturnOK('Invalid task data: %s' %
post_dict)
# get the program for the given keyname
program_entity = program_logic.getFromKeyName(program_key)
if not program_entity:
# invalid program specified, log and return OK
return error_handler.logErrorAndReturnOK(
'Invalid program specified: %s' % program_key)
# obtain the proposal duplicate status
pds_entity = pds_logic.getOrCreateForProgram(program_entity)
if pds_entity.status == 'idle':
# delete all old duplicates
prop_duplicates = pd_logic.deleteAllForProgram(program_entity)
# pass these data along params as POST to the new task
task_params = {'program_key': program_key}
task_url = '/tasks/gsoc/proposal_duplicates/calculate'
new_task = taskqueue.Task(params=task_params, url=task_url)
# add a new task that performs duplicate calculation per
# organization
new_task.add()
# update the status of the PDS entity to processing
fields = {'status': 'processing'}
pds_logic.updateEntityProperties(pds_entity, fields)
# Add a new clone of this task that must be performed an hour later because
# the current task is part of the task that repeatedly runs but repeat
# it before accepted students are announced only.
if repeat == 'yes' and timeline_helper.isBeforeEvent(
program_entity.timeline, 'accepted_students_announced_deadline'):
# pass along these params as POST to the new task
task_params = {'program_key': program_key, 'repeat': 'yes'}
task_url = '/tasks/gsoc/proposal_duplicates/start'
new_task = taskqueue.Task(params=task_params,
url=task_url,
countdown=3600)
new_task.add()
# return OK
return http.HttpResponse()
def calculate(request, *args, **kwargs):
"""Calculates the duplicate proposals in a given program for
a student on a per Organization basis.
Expects the following to be present in the POST dict:
program_key: Specifies the program key name for which to find the
duplicate proposals
org_cursor: Specifies the organization datastore cursor from which to
start the processing of finding the duplicate proposals
Args:
request: Django Request object
"""
from soc.modules.gsoc.logic.models.student_proposal import logic \
as sp_logic
post_dict = request.POST
program_key = post_dict.get('program_key')
if not program_key:
# invalid task data, log and return OK
return error_handler.logErrorAndReturnOK('Invalid program key: %s' %
post_dict)
program_entity = program_logic.getFromKeyName(program_key)
if not program_entity:
# invalid program specified, log and return OK
return error_handler.logErrorAndReturnOK(
'Invalid program specified: %s' % program_key)
fields = {'scope': program_entity, 'slots >': 0, 'status': 'active'}
# get the organization and update the cursor if possible
q = org_logic.getQueryForFields(fields)
# retrieve the org_cursor from POST data
org_cursor = post_dict.get('org_cursor')
if org_cursor:
org_cursor = str(org_cursor)
q.with_cursor(org_cursor)
result = q.fetch(1)
# update the cursor
org_cursor = q.cursor()
if result:
org_entity = result[0]
# get all the proposals likely to be accepted in the program
accepted_proposals = sp_logic.getProposalsToBeAcceptedForOrg(
org_entity)
for ap in accepted_proposals:
student_entity = ap.scope
proposal_duplicate = pd_logic.getForFields(
{'student': student_entity}, unique=True)
if proposal_duplicate and ap.key(
) not in proposal_duplicate.duplicates:
# non-counted (to-be) accepted proposal found
pd_fields = {
'duplicates': proposal_duplicate.duplicates + [ap.key()],
}
pd_fields['is_duplicate'] = len(pd_fields['duplicates']) >= 2
if org_entity.key() not in proposal_duplicate.orgs:
pd_fields['orgs'] = proposal_duplicate.orgs + [
org_entity.key()
]
proposal_duplicate = pd_logic.updateEntityProperties(
proposal_duplicate, pd_fields)
else:
pd_fields = {
'program': program_entity,
'student': student_entity,
'orgs': [org_entity.key()],
'duplicates': [ap.key()],
'is_duplicate': False
}
proposal_duplicate = pd_logic.updateOrCreateFromFields(
pd_fields)
# Adds a new task that performs duplicate calculation for
# the next organization.
task_params = {
'program_key': program_key,
'org_cursor': unicode(org_cursor)
}
task_url = '/tasks/gsoc/proposal_duplicates/calculate'
new_task = taskqueue.Task(params=task_params, url=task_url)
new_task.add()
else:
# There aren't any more organizations to process. So delete
# all the proposals for which there are not more than one
# proposal for duplicates property.
pd_logic.deleteAllForProgram(program_entity, non_dupes_only=True)
# update the proposal duplicate status and its timestamp
pds_entity = pds_logic.getOrCreateForProgram(program_entity)
new_fields = {
'status': 'idle',
'calculated_on': datetime.datetime.now()
}
pds_logic.updateEntityProperties(pds_entity, new_fields)
# return OK
return http.HttpResponse()