class AssignmentClass(object):
s = Slot.search()
def min_free_slot(self):
res = self.s.filter('term', status=STATUS_FREE).aggs.metric(
'assign_slot', 'min', field=SLOT_NO).execute()
if res:
return int(res.aggregations.assign_slot.value)
else:
return False
def max_occupied_slot_plus_one(self):
try:
res = self.s.filter('term', status=STATUS_OCCUPIED).aggs.metric(
'assign_slot', 'max', field=SLOT_NO).execute()
except AttributeError:
return 1
else:
if res.aggregations.assign_slot.value >= MAX_NO_OF_SLOTS:
return False
else:
return int(res.aggregations.assign_slot.value + 1)
def assign_slot(self):
assigned_slot = self.min_free_slot()
return assigned_slot or self.max_occupied_slot_plus_one()
def regsearch(self, reg_no):
try:
s= Slot.search()
slot = s.filter("term", registration_no = reg_no).execute()[0]
print slot, slot.registration_no, slot.slot_no
except NotFoundError:
return False
else:
return dict(registration_no=slot.registration_no, slot_no=slot.slot_no, colour= slot.colour)
def coloursearch(self, colour):
try:
s= Slot.search()
slot = s.filter("term", colour = colour).execute()
except NotFoundError:
return False
else:
slots = []
for car in slot:
slots.append(dict(registration_no=car.registration_no, slot_no=car.slot_no))
return slots
def regsearch(self, reg_no):
try:
s = Slot.search()
slot = s.filter("term", registration_no=reg_no).execute()[0]
except NotFoundError:
return False
else:
return {
'registration_no': slot.registration_no,
'slot_no': slot.slot_no,
'colour': slot.colour
}
def coloursearch(self, colour):
try:
s = Slot.search()
slot = s.filter("term", colour=colour).execute()
except NotFoundError:
return False
else:
slots = []
for car in slot:
slots.append({
'registration_no': car.registration_no,
'slot_no': car.slot_no,
})
return slots
class AvailabilityClass(object):
s = Slot.search().sort(SLOT_NO)
def search_free(self):
return self.s.filter('term', status=STATUS_FREE).execute()
def search_occupied(self):
return self.s.filter('term', status=STATUS_OCCUPIED).execute()
def is_max_slot_no_reached(self):
max_slot_no = assignmentclass.max_occupied_slot_plus_one()
return max_slot_no or False
def is_available(self):
"""
to check if parking space is available
:return: bool
"""
is_free = self.search_free()
return is_free or self.is_max_slot_no_reached()
def allfree(self):
"""
finds all the free slots
:return: list
"""
slots = self.search_free()
available_slots = []
for slot in slots:
available_slots.append({'Slot_no': slot.slot_no})
max_slot_no = self.is_max_slot_no_reached()
if max_slot_no:
for i in range(max_slot_no + 1, MAX_NO_OF_SLOTS + 1):
available_slots.append({'Slot_no': i})
return available_slots or 'All Occupied'
def is_duplicate(reg_no):
return bool(Slot.search().filter('term', registration_no=reg_no).execute())
def is_duplicate(reg_no):
s = Slot.search()
if s.filter("term", registration_no=reg_no).execute():
return True
else:
return False