<%=select("product", "category_id", Category.find(:all).collect {|p| [ p.name, p.id ] },{:selected => 16 }, { :include_blank => true }) %> make sure that the selected value is a integer.

How to create a section box with a selected options in rails?

<%=select("product", "category_id", Category.find(:all).collect {|p| [ p.name, p.id ] },{:selected => 16 }, { :include_blank => true }) %> make sure that the selected value is a integer. 07.12.13

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