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POSubmit Form and Create action for a Polymorphic Association
 

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  1. POSubmit Form and Create action for a Polymorphic Association
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    <p>I received help <a href="https://stackoverflow.com/questions/8890497/setting-up-a-polymorphic-association">Setting up a polymorphic association</a></p> <p>I am now having trouble implementing the submit form and create action. A user just needs to follow and unfollow each model.</p> <p>In my Follow Controller</p> <pre><code> class FollowsController &lt; ApplicationController before_filter :find_supports def create @relation = find_supports @follow = @relation.find(params[:follow]) current_user.follows.follow!(@follow) respond_to do |format| format.html { redirect_to :back } format.js end end def destroy @follows = Follow.find(params[:id]).followable current_user.unfollow!(@follows) respond_to do |format| format.html { redirect_to :back } format.js end end private def find_supports params.each do |name, value| if name =~ /(.+)_id$/ return $1.classify.constantize.find(value) else nil end end end end </code></pre> <p>In my Follow Form, which is rendered at on my polymorphic models</p> <p><strong>EDIT</strong></p> <pre><code> &lt;%= form_for @cause.follows.build(params[:follow]) do |f| %&gt; &lt;div&gt;&lt;%= f.hidden_field :followable_id %&gt;&lt;/div&gt; &lt;div&gt;&lt;%= f.hidden_field :followable_type %&gt;&lt;/div&gt; &lt;div&gt;&lt;%= f.hidden_field :follower_id %&gt;&lt;/div&gt; &lt;div class="create-button"&gt;&lt;%= f.submit "Follow" %&gt;&lt;/div&gt; &lt;% end %&gt; &lt;!-- I now get the values for followable_id and followable_type, but it wont get grab the follower_id and I get an error in the create action --&gt; </code></pre> <p>and in my User Model, I have these 3 methods</p> <pre><code> def following?(follow) follows.find_by_followable_id(follow) end def follow!(followable) follows.create![] ##I have tried many different params here end def unfollow!(followable) follows.destroy(params[:followable_id]).destroy end </code></pre> <p>I cannot get the follower_id, followable_id and followable_type to save properly. Any suggestions? Thanks in advance, I have spent many hours with this.</p>
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    1. USKyle C
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    1. CODid you ever figure this out? I'm having a similar problem with create on a polymorphic association.
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    2. CO@lflores yes I did. I will add my solution
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