Sha256: a5a65874a1b7a57f2ce54609b2f39c0bdf8216244f82f2d2c867372a2edcebe1
Contents?: true
Size: 1.17 KB
Versions: 10
Compression:
Stored size: 1.17 KB
Contents
class ResidenceFuelType < ActiveRecord::Base
self.primary_key = "name"
has_many :prices, :class_name => 'ResidenceFuelPrice', :foreign_key => 'residence_fuel_type_name'
col :name
col :emission_factor, :type => :float
col :emission_factor_units
# col :energy_content, :type => :float
# col :energy_content_units
def price_per_unit(relaxations = [])
conditions = { :residence_fuel_type_name => self }
relaxations.push Hash.new
relaxations.each do |relaxation|
relaxation_conditions = Hash.new
if timeframe = relaxation[:timeframe]
relaxation_conditions[:year] = timeframe.from.year
relaxation_conditions[:month] = timeframe.from.month..timeframe.to.yesterday.month
end
if location = relaxation[:location]
relaxation_conditions[:locatable_type] = location.class.to_s
relaxation_conditions[:locatable_id] = location.id
end
if non_nil_result = ResidenceFuelPrice.average(:price, :conditions => conditions.merge(relaxation_conditions))
return non_nil_result
end
end
nil
end
class << self
def [](fuel)
find_by_name fuel.to_s.humanize.downcase
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems