Rails form_for select, invalid selected when disabled: true -


can guys me little problem? select tag:

<%= f.select :department_id, options_for_select(department.in_order.map {|d| [d.name, d.id]}, obj.department_id), { prompt: true }, class: 'form-control input-sm', disabled: lambda {action_name == 'revise'} %>

if disabled: true set, "department invalid" error on validation. when not set, fine.

this due fact html fields when disabled not submitted form. need readonly. readonly gives same functionality disabled still submitted form.

http://www.w3schools.com/tags/att_input_readonly.asp


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