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PORails 3 routing error in a relationship in a has_many => through association
 

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  1. PORails 3 routing error in a relationship in a has_many => through association
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    <p>I have my models setup as follows: </p> <pre><code> class User has_many :memberships, :dependent =&gt; :destroy has_many :groups, :through =&gt; :memberships Class Group has_many :memberships, :dependent =&gt; :destroy has_many :users, :through =&gt; :memberships Class Membership attr_accessible :user_id, :group_id belongs_to :user belongs_to :group </code></pre> <p>My MembershipController#create</p> <pre><code>def create @membership = current_user.memberships.build(:group_id =&gt; params[:group_id]) if @membership.save flash[:notice] = "You have joined this group." redirect_to :back else flash[:error] = "Unable to join." redirect_to :back end end </code></pre> <p>I have resources :memberships in my routes so that it can find the create action.</p> <p>Finally in my Group#show action I want a user to be able to join a group. So I created this form_tag</p> <pre><code>&lt;%= form_tag(membership_path) do %&gt; &lt;%= hidden_field_tag @group.id %&gt; &lt;%= submit_tag "Join Group"%&gt; &lt;% end %&gt; </code></pre> <p>This returns the following error:</p> <pre><code>Routing Error No route matches [POST] "/memberships/1" </code></pre> <p>I have run a rake routes to try and understand what I am missing here: </p> <p>memberships GET /memberships(.:format) {:action=>"index", :controller=>"memberships"} POST/memberships(.:format) {:action=>"create", controller=>"memberships"} new_membership GET /memberships/new(.:format) {:action=>"new",controller=>"memberships"} edit_membership GET /memberships/:id/edit(.:format){:action=>"edit", controller=>"memberships"}</p> <p>membership GET /memberships/:id(.:format) {:action=>"show", :controller=>"memberships"} PUT /memberships/:id(.:format){:action=>"update", :controller=>"memberships"} DELETE /memberships/:id(.:format) {:action=>"destroy", :controller=>"memberships"}</p> <p>Anyone see the error of my ways?</p>
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