CODEWITHSUNDEEP
ruby-on-railsruby
user12073145
user12073145

Reputation:

How to add toastr JS notification on application level in Ruby on Rails

I am using toastr gem for my notifications. I am trying to add a toastr notification to my application whenever a method on my application_controller.rb is active. 

rescue_from Pundit::NotAuthorizedError, with: :user_not_authorized

    def user_not_authorized
      toastr.info('You cannot access this page.', 'info')
      redirect_to contacts_path
    end

As you can see I tried to add toastrfunction on my controller, however this doesn't work. How can I show this toastr notification whenever this method hits or simply whenever a non-admin user access an unathorized page?

Upvotes: 0

Views: 880

Answers (2)

Eyeslandic
Eyeslandic

Reputation: 14890

To build on the first answer, this is what I did in my app. Added what I wanted to show to flash in the controller and then show the flash messages in toastr

I'm using the great slim extension there, add it with gem 'slim-rails' and save this file as _messages.html.slim, you can then include it in your layout file.

- flash.each do |name, msg|
  javascript:
    window.onload = function() {  
      var name = "#{name}";

      if (name == 'info' || name == 'notice') {
        toastr.info("#{msg}");
      }
      else if (name == 'success') {      
        toastr.success("#{msg}");
      } 
      else if (name == 'error') {      
        toastr.error("#{msg}");
      } 
      else {
        toastr.info("#{msg}");
      }        
    };

Upvotes: 1

pedrosfdcarneiro
pedrosfdcarneiro

Reputation: 341

toastr is a Javascript library and you can't use it within Ruby code.

However, if you want to show some kind of notifications to a user and define them in the context of a Rails controller, you can make use of Rails Flash Notifications.

In the application_controller.rb file:

rescue_from Pundit::NotAuthorizedError, with: :user_not_authorized

def user_not_authorized
  flash[:notice] = "You cannot access this page."
  redirect_to contacts_path
end

And somewhere in your HTML/ERB file, you would render the HTML elements for each one of the the flash notifications set in the controllers:

<html>
  <!-- <head/> -->
  <body>
    <% flash.each do |name, msg| -%>
      <%= content_tag :div, msg, class: name %>
    <% end -%>

    <!-- more content -->
  </body>
</html>

You can consult more example of its usage in the link above.

Upvotes: 0

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