passing parameters through link_to

rubyonrails-talk
1

Is it possible to pass parameters through link_to that will be used by the controller that link_to directs to? Specifically I have this code: <% for user in @users -%>   <%= link_to user.screen_name, {:action => "index", :controller => "users", :user_id => user.id } %> <% end %>

Is it possible to use the parameter at the end of link_to(:user_id => user.id) to initialize a hash @user using the user_id?

This is the index action in the users controller:   def index     @user = User.find(:all, :conditions => { :id => :user_id })   end

I dont know if this makes sense but ultimately I am trying to link to a profile and have that profile be filled with the user that matches the id of the link that is clicked. So I am trying to pass the id of the user through link_to and use that id in the index action above to populate a hash with the corresponding user. Im not sure if this is the way to go about it. Ive been stuck on this for a while, so any input is much appreciated. Thanks, Dave

2

Is it possible to pass parameters through link_to that will be used by the controller that link_to directs to? Specifically I have this code: <% for user in @users -%>   <%= link_to user.screen_name, {:action => "index", :controller => "users", :user_id => user.id } %> <% end %>

Is it possible to use the parameter at the end of link_to(:user_id => user.id) to initialize a hash @user using the user_id?

This is the index action in the users controller: def index    @user = User.find(:all, :conditions => { :id => :user_id }) end

Either i'm horribly confused or you just need to do params[:user_id]. Typically though you'd just do

<%= link_to user.screen_name, {:action => "index", :controller => "users", :id => user.id }

and access it via params[:id]

Fred

3

It sounds like to me that you just want to be able to have a user profile page with that particular user's info listed. Change your loop to this:

<% for user in @users -%>    <%= link_to %Q{#{user.screen_name}}, {:controller => "users", :action => "index", :id => user.id } %> <% end %>

Then, what you need to do is create another action in your 'users' controller, for example, 'profile' that finds the params/attributes for that user record.

Add this to your 'users' controller:

def profile     @user = User.find(params[:id]) end

Then, create a view called profile.rhtml. Once you do that you can call upon any of the user's attributes with <%= @user.method_name %> (e.g. @user.screen_name, @user.email, etc.).