Ruby on Rails：获取具有模型中未包含的属性的参数

Question

I have a field which is not in my model, but it is in my _form.html.erb . Now i want to get it from form, but i get this error :

undefined method 'description' for Object

My controller:

def job_params
@job_params ||=params.permit(:description) # (description is not an attribute in job model ).

How can i get description ?? My form:

<%= form_for(@job) do |f| %>
<div class="field">
  <%= f.label :description %><br>
  <%= f.text_field :description %>
</div>

Answer 1

use attr_accessor in your model for description .

class DummyModel < ActiveRecord::Base
  attr_accessor: description
end

Reference

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