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PO"Couldn't find <object> without an ID"
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  1. PO"Couldn't find <object> without an ID"
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    copied!<p>I'm having problems implementing a kind of comments form, where comments (called "microposts") belong_to both users and posts, users have_many comments, and posts (called "propositions") have_many comments.</p> <p>My code for the comments form is:</p> <pre><code>&lt;%= form_for @micropost do |f| %&gt; &lt;div class="field"&gt; &lt;%= f.text_area :content %&gt; &lt;/div&gt; &lt;div class="actions"&gt; &lt;%= f.submit "Submit" %&gt; &lt;/div&gt; &lt;% end %&gt; </code></pre> <p>The MicropostsController has this in the create action:</p> <pre><code> def create @proposition = Proposition.find(params[:proposition_id]) @micropost = current_user.microposts.build(params[:micropost]) @micropost.proposition = @proposition if @micropost.save flash[:success] = "Contribution submitted" redirect_to root_path else @feed_items = [] render 'pages/home' end end </code></pre> <p>The form for creating a new micropost is on the same page as a proposition, yet the proposition id doesn't seem to get passed at any point.</p> <p>This is the error I get on submitting the micropost form:</p> <blockquote> <p>ActiveRecord::RecordNotFound in MicropostsController#create</p> <p>Couldn't find Proposition without an ID</p> </blockquote> <p>Parameters are:</p> <blockquote> <p>{"commit"=>"Submit", "micropost"=>{"proposition_id"=>"", "content"=>"First comment"}, "authenticity_token"=>"TD6kZaHv3CPWM7xLzibEbaLJHI0Uw43H+pq88HLZFjc=", "utf8"=>"✓"}</p> </blockquote> <p>I'm completely new to rails and very new to coding anything at all, so I'd be grateful for any help you can give me!</p> <p>Thanks in advance.</p>
 

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