Class: Curly::TemplateHandler

Inherits:
Object
  • Object
show all
Defined in:
lib/curly/template_handler.rb

Class Method Summary collapse

Class Method Details

.call(template) ⇒ Object

Handles a Curly template, compiling it to Ruby code. The code will be evaluated in the context of an ActionView::Base instance, having access to a number of variables.

template - The ActionView::Template template that should be compiled.

Returns a String containing the Ruby code representing the template.



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# File 'lib/curly/template_handler.rb', line 14

def self.call(template)
  path = template.virtual_path
  presenter_class = Curly::Presenter.presenter_name_for_path(path)

  source = Curly.compile(template.source)
  template_digest = Digest::MD5.hexdigest(template.source)

  # Template is empty, so there's no need to initialize a presenter.
  return %("") if template.source.empty?

  <<-RUBY
  if local_assigns.empty?
    options = assigns
  else
    options = local_assigns
  end

  presenter = #{presenter_class}.new(self, options.with_indifferent_access)

  view_function = lambda do
    #{source}
  end

  if key = presenter.cache_key
    @output_buffer = ActiveSupport::SafeBuffer.new

    template_digest = #{template_digest.inspect}

    if #{presenter_class}.respond_to?(:cache_key)
      presenter_key = #{presenter_class}.cache_key
    else
      presenter_key = nil
    end

    options = {
      expires_in: presenter.cache_duration
    }

    cache([template_digest, key, presenter_key].compact, options) do
      safe_concat(view_function.call)
    end

    @output_buffer
  else
    view_function.call.html_safe
  end
  RUBY
end