Question

I have a function to take ownership of a job which updates the database to update the username in a table row. I want to link to this function from the view and then redirect to the appropriate page.

How do you link to a controller function or a model function from the view?

from the index i want to have another link beside show, edit, delete, which says ‘take ownership’
This will then fire off an action in the application controller

def accept_job(job_type, id, username)
    if (job_type == 'decom')
      Decommission.update(id, :username => username)
    else

    end
end

Answer 1

You can use the instance variable @controller to get a reference to the controller. As for calling a model function, you can call Model.function to call class methods, or if you have a particular Model instance called model_instance, then use model_instance.function to call an instance method.

Edit: Okay, I think I understand what you’re asking now.

You should

1. Create a new action in the controller, let’s call it update_username:

   def update_username
     job = Job.find(params[:id])
     job.your_method #call your method on the model to update the username
     redirect_to :back #or whatever you'd like it to redirect to
   end
   

2. Add your action the routes in routes.rb. See Rails Routing from the Outside In for more details.

3. Add your link in the view:

   <%=link_to "Update my username please!", update_username_job_path%>