CODEWITHSUNDEEP
ruby-on-rails
rota90
rota90

Reputation: 259

linking to named route with parameter

I am trying to show a user by id using the "link to" in my users_controller.rb I have a method show as shown below:

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

my route to this controller method is:

get 'users/:id/show' => 'users#show', as: :show

and the link to instruction is:

<%= link_to 'show it', show_path(id: user.id)  %>

the generated error is:

undefined local variable or method `user'

I also tried this syntax:

<%= link_to 'show it', show_path(@user.id)  %>

but also I had this error:

undefined method `id' for nil:NilClass

but when I tried this :<%= link_to 'show it', show_path(1) %>

it worked fine I am using rails 4 and I realy don't know where is the problem

Upvotes: 0

Views: 51

Answers (1)

Marko Krstic
Marko Krstic

Reputation: 1447

where do you have 

<%= link_to 'show it', show_path(@user.id)  %>

?

I mean, it should be probably in users controller and index.html.erb, called by index action. If so, you didn't set @user variable. You can for example in controller set:

@users = User.all

and then in your template:

<% @users.each do |user| %>
    <%= link_to 'show it', show_path(user.id)  %>
<% end %>

Upvotes: 1

Related Questions