Admin - Searching user is case insensitive

Author: Un3x

app/controllers/admin/users_controller.rb

@@ -1,5 +1,6 @@
 class Admin::UsersController < AdminController
   def index
+    downcase_params if params[:q].present?
     @q = User.includes(:editor).ransack(params[:q])
     @users = @q.result(distinct: true).page(params[:page])
   end
@@ -51,4 +52,8 @@ def user_update_params
   def provider_klass
     Kernel.const_get("API#{namespace.classify}::Provider")
   end
+
+  def downcase_params
+    params[:q][:email_or_authorization_requests_siret_or_authorization_requests_external_id_eq] = params[:q][:email_or_authorization_requests_siret_or_authorization_requests_external_id_eq].downcase if params[:q][:email_or_authorization_requests_siret_or_authorization_requests_external_id_eq].present?
+  end
 end