def _transaction_cmp(first_transaction, second_transaction):
# if the forms aren't submitted by the same user, just default to server dates
if first_transaction.user_id != second_transaction.user_id:
return cc_cmp(first_transaction.server_date, second_transaction.server_date)
if first_transaction.form_id and first_transaction.form_id == second_transaction.form_id:
# short circuit if they are from the same form
return cc_cmp(
_type_sort(first_transaction.type),
_type_sort(second_transaction.type)
)
if not (first_transaction.server_date and second_transaction.server_date):
raise MissingServerDate()
# checks if the dates received are within a particular range
if abs(first_transaction.server_date - second_transaction.server_date) > fudge_factor:
return cc_cmp(first_transaction.server_date, second_transaction.server_date)
def _sortkey(transaction):
def form_index(form_id):
try:
return xform_ids.index(form_id)
except ValueError:
return sys.maxsize
# if the user is the same you should compare with the special logic below
return (
transaction.client_date,
form_index(transaction.form_id),
_type_sort(transaction.type),
)
return cc_cmp(_sortkey(first_transaction), _sortkey(second_transaction))
def _sortkey(action):
if not action.server_date or not action.date:
raise MissingServerDate()
form_cmp = lambda form_id: (form_ids.index(form_id) if form_id in
form_ids else sys.maxint, form_id)
return (
# this is sneaky - it's designed to use just the date for the
# server time in case the phone submits two forms quickly out of order
action.server_date.date(),
action.date,
form_cmp(action.xform_id),
_type_sort(action.action_type),
)
def _sortkey(action):
if not action.server_date or not action.date:
raise MissingServerDate()
form_cmp = lambda form_id: (form_ids.index(
form_id) if form_id in form_ids else sys.maxint, form_id)
# if the user is the same you should compare with the special logic below
# if the user is not the same you should compare just using received_on
return (
# this is sneaky - it's designed to use just the date for the
# server time in case the phone submits two forms quickly out of order
action.server_date.date(),
action.date,
form_cmp(action.xform_id),
_type_sort(action.action_type),
)
def action_cmp(first_action, second_action):
# compare server dates if the forms aren't submitted by the same user
if first_action.user_id != second_action.user_id:
return cmp(first_action.server_date, second_action.server_date)
if first_action.xform_id and first_action.xform_id == second_action.xform_id:
# short circuit if they are from the same form
return cmp(type_index(first_action.action_type),
type_index(second_action.action_type))
if not (first_action.server_date and second_action.server_date
and first_action.date and second_action.date):
raise MissingServerDate()
if abs(first_action.server_date -
second_action.server_date) > const.SIGNIFICANT_TIME:
return cmp(first_action.server_date, second_action.server_date)
return cmp(sort_key(first_action), sort_key(second_action))