Question

I’ve created in rails(3) a new html page in my project model named contact.html.erb and I am interested in linking to it from a different page, i’ve added the code:

<%= link_to 'contact', contact_project_path(@project) %>

Project is a model that belongs_to a User (which is the contact in the contact page).

This link gives me an error message saying that contact_project_path doesnt exist. I know I need to define it somewhere but I don’t know where or how. I want the page to be specific per project. I’ve created an action in the project_controler named contact and left it empty.

What am i missing?

I’ve searched for a soloution for quite some time and haven’t found an answer to this question anywhere else. I’m aware its a little bit basic but I have no other options.

Answer 1

-REVISED ANSWER-
Based on comments I see you’re not trying to associate a contact model, just a view. In that case, you still need to change the routes file, but you need to decide if you want to get a single contact page for all projects, or one contact view per project. IE:

# Collection Contact
example.com/projects/contact # IE One contact view for all projects

# Member Contact
example.com/projects/1/contact # IE One contact view per project

Either way you need to use a block for your project resource in your routes file. So, if you want there to be one contact page for the collection (all projects), do:

resources :projects do
  collection do
    get 'contact'
  end
end

Or, if you want one contact view per member (one per project) do:

resources :projects do
  member do
    get 'contact'
  end
end

Either way this will give you helper methods which you can put into link_to

For the collection it should be contact_projects_path (no arguments), and for members it should be contact_project_path(@project) (pass in the project as an argument.

You can use get post put delete or match as a parameter in a collection or member block, that just tells Rails what kind of request to handle at that URL, and what helpers to generate. For normal views you want a GET request.

I hope this finally answers your question 🙂

-ORIGINAL ANSWER-

This is for routing to a MODEL, not just a view

Add to your routes.rb:

resources :projects do
  resource :contact
end

If I understand your question correctly, that should create a helper called project_contact_path().

This record will be projects/123/contact.

If you want more than one contact per project, you’ll need to make it plural (resource :contacts). Then your records would look like projects/123/contacts/123.

See http://guides.rubyonrails.org/routing.html

You would link to this using link_to( project_contact_path(@project) ) if there’s only one contact per project, or link_to( project_contact_path(@project,@contact) ) if there are multiple contacts per project.