Default inject value to 0

Braulio Bhavamitra
1 parent 88dba088
Showing 1 changed file with 2 additions and 1 deletions Show diff stats
app/models/product.rb
 class Product < ActiveRecord::Base
+
   belongs_to :enterprise
   has_one :region, :through => :enterprise
   validates_presence_of :enterprise
@@ -163,7 +164,7 @@ class Product &lt; ActiveRecord::Base
  
   def total_production_cost
     return inputs_cost if price_details.empty?
-    inputs_cost + price_details.map(&:price).inject { |sum,price| sum + price }
+    inputs_cost + price_details.map(&:price).inject(0){ |sum,price| sum + price }
   end
  
   def price_described?
1	1	class Product < ActiveRecord::Base
	2	+
2	3	belongs_to :enterprise
3	4	has_one :region, :through => :enterprise
4	5	validates_presence_of :enterprise
...	...	@@ -163,7 +164,7 @@ class Product < ActiveRecord::Base
163	164
164	165	def total_production_cost
165	166	return inputs_cost if price_details.empty?
166		- inputs_cost + price_details.map(&:price).inject { \|sum,price\| sum + price }
	167	+ inputs_cost + price_details.map(&:price).inject(0){ \|sum,price\| sum + price }
167	168	end
168	169
169	170	def price_described?
...	...