Method to check whether template compilation is necessary. The template will be compiled if the inline template or file has not been compiled yet, if local_assigns has a new key, which isn’t supported by the compiled code yet, or if the file has changed on disk and checking file mods hasn’t been disabled.

Source Code

# File action_view/base.rb, line 537
def compile_template?(template, file_name, local_assigns)
  method_key    = file_name || template
  render_symbol = @@method_names[method_key]

  compile_time = @@compile_time[render_symbol]
  if compile_time && supports_local_assigns?(render_symbol, local_assigns)
    if file_name && !@@cache_template_loading
      template_changed_since?(file_name, compile_time)
    end
  else
    true
  end
end