resource class capacities property

gistfile1.txt

@property
    def capacities(self):
        if not hasattr(self, '_capacities'):
            # racks = self.list_racks

            capacities = [rack.capacities for rack in self.list_racks]
            def add_capacities(c1, c2):
                return [Capacity({'name': a.name,
                                 'value': int(a.value) + int(b.value),
                                 'unit': a.unit}) for a, b in zip(c1, c2)]

            sums = reduce(add_capacities, capacities)
            self._capacities = sums

        #     capacities = list(itertools.chain(*[rack.capacities for rack in self.list_racks]))
        #     self._capacities = []
        #     capacity_names = []
        #     for capacity in capacities:
        #         if capacity.name in capacity_names:
        #             capacities = [c for c in self._capacities if c.name == capacity.name]
        #             capacities[0].value = int(capacities[0].value) + int(capacity.value)
        #         else:
        #             capacity_names.append(capacity.name)
        #             self._capacities.append(capacity)
        return self._capacities