Add weekday selection and client side date formatting

spec/models/product_category_spec.rb

@@ -0,0 +1,14 @@
+require 'spec_helper'
+
+describe ProductCategory do
+  describe '#week_days' do
+    let(:product_category) { create :product_category }
+    subject { product_category }
+    let(:default) { Array.new(7, 1) }
+    its(:week_days) { should == default }
+    it "typecasts strings into integers" do
+      subject.week_days = Array.new(7, "0")
+      subject.week_days.should == Array.new(7, 0)
+    end
+  end
+end