Class: VaporTiltAdapter::Renderer

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

Instance Method Summary collapse

Instance Method Details

#render(view_dir, template_filename, output_path, context, default_layout = false) ⇒ Object

Parses context data, sets instance variables, renders the view, and writes it to the specified file.

The values for these parameters will typically come straight from TiltRenderer via ARGV. They are:

view_dir

The absolute path to the directory where your views are located. The last character should be a /.

template_filename

The filename of the template being rendered, including extension.

output_path

The absolute path of the file to which the rendered template will be written.

context

A JSON string containing all the data (primarily the values of instance variables) to be used in your templates

default_layout

Either a string containing the filename of the default layout template, or

+false+ to have the default be to render without a layout.



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# File 'lib/vapor_tilt_adapter.rb', line 22

def render(view_dir, template_filename, output_path, context, default_layout = false)
  json          = JSON.parse(context, symbolize_names: true) || {}
  json[:layout] = default_layout unless json.key? :layout

  ivars = json.select { |k, _| k[0] == '@' }
  ivars&.each do |k, v|
    instance_variable_set(k, v)
  end

  template = Tilt.new(view_dir + template_filename)

  outstr = if (layout = json[:layout])
             Tilt.new(view_dir + layout).render(self) { template.render(self) }
           else
             template.render(self)
           end

  FileUtils.mkdir_p output_path.sub(%r{/[^/]*$}, '')
  File.write(output_path, outstr)
rescue
  write_error(output_path, $ERROR_INFO)
  raise $ERROR_INFO
end