Raw rendering of a template to a string.
It is similar to render, except that it does not set the response_body and it should be guaranteed to always return a string.
If a component extends the semantics of response_body (as Action Controller extends it to be anything that responds to the method each), this method needs to be overridden in order to still return a string. :api: plugin
# File actionpack/lib/abstract_controller/rendering.rb, line 111 def render_to_string(*args, &block) options = _normalize_render(*args, &block) render_to_body(options) end