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PORails routing error doesn't recognize id
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  1. PORails routing error doesn't recognize id
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    copied!<p>I have a controller "manage_links.rb" that allows users to manage their links, which have a corresponding "link" model. I am getting the following error:</p> <pre><code>ActionController::RoutingError in Manage_links#index Showing app/views/manage_links/index.html.erb where line #16 raised: edit_manage_link_url failed to generate from {:controller=&gt;"manage_links", :action=&gt;"edit", :id=&gt;nil}, expected: {:controller=&gt;"manage_links", :action=&gt;"edit"}, diff: {:id=&gt;nil} Extracted source (around line #16): 13: &lt;td&gt;&lt;%=h link.text %&gt;&lt;/td&gt; 14: &lt;td&gt;&lt;%=h link.url %&gt;&lt;/td&gt; 15: &lt;td&gt;&lt;%= link_to 'Show', manage_link_path(link.id) %&gt;&lt;/td&gt; 16: &lt;td&gt;&lt;%= link_to 'Edit', edit_manage_link_path(link.id) %&gt;&lt;/td&gt; 17: &lt;td&gt;&lt;%= link_to 'Destroy', manage_link_path(link.id), :confirm =&gt; 'Are you sure?', :method =&gt; :delete %&gt;&lt;/td&gt; 18: &lt;/tr&gt; 19: &lt;% end %&gt; </code></pre> <p>I've got the following line in my config/routes.rb:</p> <blockquote> <p>map.resources :manage_links</p> </blockquote> <p>Here's an excerpt of what I get when I run "rake routes":</p> <blockquote> <pre><code> manage_links GET /manage_links(.:format) POST /manage_links(.:format) new_manage_link GET /manage_links/new(.:format) edit_manage_link GET /manage_links/:id/edit(.:format) manage_link GET /manage_links/:id(.:format) PUT /manage_links/:id(.:format) DELETE /manage_links/:id(.:format) </code></pre> </blockquote> <p>and here's the full code block that's causing the error:</p> <pre><code>&lt;% @links.each do |link| %&gt; &lt;tr&gt; &lt;td&gt;&lt;%=h link.text %&gt;&lt;/td&gt; &lt;td&gt;&lt;%=h link.url %&gt;&lt;/td&gt; &lt;td&gt;&lt;%= link_to 'Show', manage_link_path(link.id) %&gt;&lt;/td&gt; &lt;td&gt;&lt;%= link_to 'Edit', edit_manage_link_path(link.id) %&gt;&lt;/td&gt; &lt;td&gt;&lt;%= link_to 'Destroy', manage_link_path(link.id), :confirm =&gt; 'Are you sure?', :method =&gt; :delete %&gt;&lt;/td&gt; &lt;/tr&gt; &lt;% end %&gt; </code></pre> <p>here is the controller code:</p> <pre><code>class ManageLinksController &lt; ApplicationController before_filter :login_required before_filter :find_user # GET /links # GET /links.xml def index @links = @user.links respond_to do |format| format.html # index.html.erb format.xml { render :xml =&gt; @links } end end # GET /links/1 # GET /links/1.xml def show @link = @user.links.find(params[:id]) respond_to do |format| format.html # show.html.erb format.xml { render :xml =&gt; @link } end end # GET /links/new # GET /links/new.xml def new @link = @user.links.build respond_to do |format| format.html # new.html.erb format.xml { render :xml =&gt; @link } end end # GET /links/1/edit def edit @link = @user.links.find(params[:id]) end # POST /links # POST /links.xml def create @link = @user.links.build(params[:id]) respond_to do |format| if @link.save flash[:notice] = 'Link was successfully created.' format.html { redirect_to manage_link_url(@link) } format.xml { render :xml =&gt; @link, :status =&gt; :created, :location =&gt; @link } else format.html { render :action =&gt; "new" } format.xml { render :xml =&gt; @link.errors, :status =&gt; :unprocessable_entity } end end end # PUT /links/1 # PUT /links/1.xml def update @link = Link.find(params[:id]) respond_to do |format| if @link.update_attributes(params[:link]) flash[:notice] = 'Link was successfully updated.' format.html { redirect_to manage_link_url(@link) } format.xml { head :ok } else format.html { render :action =&gt; "edit" } format.xml { render :xml =&gt; @link.errors, :status =&gt; :unprocessable_entity } end end end # DELETE /links/1 # DELETE /links/1.xml def destroy @link = Link.find(params[:id]) @link.destroy respond_to do |format| format.html { redirect_to manage_link_path } format.xml { head :ok } end end def find_user @user = session[:user] end end </code></pre> <p>why is the call to "edit_manage_link_path(link.id) giving me an error? I know that link.id actually returns a number, and if I hard code a value for the parameter instead of link.id, the function seems to run correctly</p>
 

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