def estimated_revenue_gain(self):
"""
Return an estimate of how much new annual revenue will be obtained
on the basis of this period's full investment.
"""
return sum_or_0(self.estimated_acq_revenue_gain,
self.estimated_ret_revenue_gain)
def romi(self):
"""
Return an estimate of how effective marketing spend is, as a rough
integer multiple of current investment.
Returns 0 if the marketing investment in this period is $0.
"""
acq_weight = d_div_or_0(self.acq_investment, self.investment)
ret_weight = decimal.Decimal(1) - acq_weight
weighted_acq_romi = mult_or_0(self.acq_romi, acq_weight)
weighted_ret_romi = mult_or_0(self.ret_romi, ret_weight)
return round(sum_or_0(weighted_acq_romi, weighted_ret_romi))
def leased_units_calc(leased_units_end, leased_units_start, delta_leases):
"""The total number of leases in effect at the end of the period."""
# HACK To fix https://www.pivotaltracker.com/n/projects/2240283 in a day,
# we use the number explicitly imported from our spreadsheets
# *if it's available*. Otherwise, we compute it just like we used to.
# Eventually, I think we need to consider simply importing *all*
# of our per-period computations from the spreadsheet, and *completely*
# deleting our ComputedPeriod code. But we're not there yet, and I'd
# be nervous to make the change without a lot more available time. (This
# needs to get done *today*!) -Dave
if leased_units_end is not None:
result = leased_units_end
else:
result = sum_or_0(leased_units_start, delta_leases)
return result
def occupied_units(self):
"""The total occupancy in effect at the end of the period."""
# HACK To fix https://www.pivotaltracker.com/n/projects/2240283 in a day,
# we use the number explicitly imported from our spreadsheets
# *if it's available*. Otherwise, we compute it just like we used to.
# Eventually, I think we need to consider simply importing *all*
# of our per-period computations from the spreadsheet, and *completely*
# deleting our ComputedPeriod code. But we're not there yet, and I'd
# be nervous to make the change without a lot more available time. (This
# needs to get done *today*!) -Dave
underlying_value = self.period.get_value("occupied_units_end")
if underlying_value is not None:
result = underlying_value
else:
moved_in = sum_or_0(self.occupied_units_start, self.move_ins)
result = sub_or_0(moved_in, self.move_outs)
return result
def resident_decisions(self):
"""The total number of notices to renew and vacate"""
return sum_or_0(self.lease_renewal_notices,
self.lease_vacation_notices)