我在Rails 4中定制Spree 2.3应用程序.当我保存price.amount时,它似乎在数据库中正确保存,但是当我检索它时,它被包装在BigDecimal类中并返回0.
如何存储或检索正确的值？
# in the form <%= number_field_tag :amount %> # controller action @variant.price = params[:amount] # appears in Postgresql database as type 'numeric' id: 35,amount: 60.00 # retrieved in Rails console as BigDecimal class instance # looks like the wrong amount 2.1.1 :001 > Spree::Price.find_by_id(35).amount => #<BigDecimal:105806d20,'0.0',9(27)> # converts to 0.0 2.1.1 :002 > Spree::Price.find_by_id(35).amount.to_f => 0.0 # testing data retrieval in the console 2.1.1 :003 > ActiveRecord::Base.connection.execute("SELECT * FROM spree_prices WHERE id=35").first => {"id"=>"35","variant_id"=>"35","amount"=>"60.00","currency"=>"USD","deleted_at"=>nil} 2.1.1 :004 > Spree::Price.find(35) => #<Spree::Price id: 35,variant_id: 35,amount: #<BigDecimal:109ec4a28,9(27)>,currency: "USD",deleted_at: nil>