undefined method `remote_function' for #<#<Class:0x0000000c5c6190>:0x0000000bff7408>

[essaebrahem]

iam migrating ruby 1.8.7 rails 2 to rails 5 ruby 2.4
i got this error
Showing c:/site/simple_cms/app/views/user/all.erb where line #36 raised:

undefined method `remote_function' for #<#Class:0x0000000c5c6190:0x0000000bff7408>
Extracted source (around line #36):
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  <div class="text-input-bg"><%= select :user_type, :type, [["#{t('admin')}","Admin"], ["#{t('employee_text')}","Employee"],["#{t('student_text')}","Student"],["#{t('parent')}","Parent"]],
      {:prompt => "#{t('select_a_role')}"},
      {:onChange => "#{remote_function(:url => {:action => "list_user"},
      :with => "'user_type='+value",
      :before => "Element.show('loader')",
      :success => "Element.hide('loader')"