CODEWITHSUNDEEP
ruby-on-railsruby
user13798938
user13798938

Reputation:

How to pass variable from controller to partial view file in rails?

I want to send a variable from controller to partial file. My controller name is center_controller.rb and the partial file name is _view_center.html.erb. In controller, I have @notes variable. When I give <%= @notes %>, Iam not getting the values,nil is coming. Can you help me on that?

center_controller.rb
def view
@notes = Notes.all render"view_center.html.erb"
end

and In my view_center.html.erb <%= @notes %> But Iam not getting @notes values, it is nil. Thanks in Advance !!!

Upvotes: 0

Views: 596

Answers (1)

Toni Saez Valls
Toni Saez Valls

Reputation: 81

IMPORTANT UPDATE!

This is wrong

@notes = Notes.all

This is right

@notes = Note.all

Watch out ! When you call a class you want the class name in Singular

First of all you need to name the view to match the controller method.

View file names, by default, match the controller and action that they are tied to.

  • If you call your view (view_center.html.erb) you should name your controller method (view_center) example:
#center_controller.rb
def view_center
  @notes = Note.all
end

#views/center/view_center.html.erb
<%= @notes %>

When you want to render a partial that uses a instance variable, you should do:

<%= render 'view_center', notes: @notes %>

The [notes: @notes] sends the variable to the partial

In the partial file you need to do this:

<% notes.each do |note| %>
<% end %>

Otherwise, take a look at Rails naming conventions, because usually, controller filenames are plural: https://gist.github.com/iangreenleaf/b206d09c587e8fc6399e

  • centers_controller.rb
  • users_controller.rb
  • etc

Upvotes: 1

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