Created
July 24, 2012 21:37
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model arithmetic
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| describe Rate do | |
| it "can do arithmetic" do | |
| total = Rate.new(amount: 100.00) + Rate.new(amount: 200.00) | |
| total.should == 300.00 | |
| end | |
| end | |
| class Rate < ActiveRecord::Base | |
| attr_accessible :amount | |
| delegate :+, :-, :/, :*, :to_d, :to_f, :to_i, :to => :amount | |
| end |
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