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PORoutes, path helpers and STI in Rails 4.0
 

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    <p>This is driving me crazy! I have the two models <code>Lion</code> and <code>Cheetah</code>. Both inherit from <code>Wildcat</code>.</p> <pre><code>class Wildcat &lt; ActiveRecord::Base; end class Lion &lt; Wildcat; end class Cheetah &lt; Wildcat; end </code></pre> <p>STI is used here.</p> <p>They all get handled through the controller <code>WildcatsController</code>. There, I have a <code>before_filer</code> to get the <code>type</code> of wildcat from the <code>params[:type]</code> and all the other stuff to use the correct class.</p> <p>In my <code>routes.rb</code>, I created the following routes:</p> <pre><code>resources :lions, controller: 'wildcats', type: 'Lion' resources :cheetahs, controller: 'wildcats', type: 'Cheetah' </code></pre> <p>If I now want to use the path helpers, that I get from the routes (<code>lions_path</code>,<code>lion_path</code>,<code>new_lion_path</code>, etc.), everything is working as expected, except the <code>show</code> and the <code>new</code> paths. For example <code>lions_path</code> returns the path <code>/lions</code>. The <code>new</code> path returns <code>/lions/new?type=Lion</code>. Same with the <code>show</code> path. When I try to enter <code>/lions/new</code> to my root domain it correctly adds the type param in the background.</p> <p>So, my question is, why does Rails add the <code>type</code> parameter to the url if I use the path helper? And why only for <code>new</code> and <code>show</code>?</p> <p>I am running Rails 4.0.0 with Ruby 2.0 using a fresh Rails app.</p>
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