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- #---
- # Excerpted from "Agile Web Development with Rails",
- # published by The Pragmatic Bookshelf.
- # Copyrights apply to this code. It may not be used to create training material,
- # courses, books, articles, and the like. Contact us if you are in doubt.
- # We make no guarantees that this code is fit for any purpose.
- # Visit http://www.pragmaticprogrammer.com/titles/rails4 for more book information.
- #---
- #---
- # Excerpted from "Agile Web Development with Rails, 4rd Ed.",
- # published by The Pragmatic Bookshelf.
- # Copyrights apply to this code. It may not be used to create training material,
- # courses, books, articles, and the like. Contact us if you are in doubt.
- # We make no guarantees that this code is fit for any purpose.
- # Visit http://www.pragmaticprogrammer.com/titles/rails4 for more book information.
- #---
- class EvalTemplate < ActionView::TemplateHandler
- include ActionView::TemplateHandlers::Compilable
- def compile(template)
- compiled = "controller.headers['Content-Type'] ||= 'text/plain'\n"
- compiled << "output = ''\n"
-
- compiled << template.source.split(/\n/).map do |line|
- <<-ruby_eval
- line = #{line.inspect}
- @eval_template_scope ||= binding
- begin
- output << line + " => " + eval(line,@eval_template_scope).to_s + "\n"
- rescue Exception => err
- output << line + " => " + err.inspect + "\n"
- end
- ruby_eval
- end.join("\n")
- end
- end
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