Class: Volt::HttpResponseRenderer

Inherits:
Object
  • Object
show all
Defined in:
lib/volt/server/rack/http_response_renderer.rb

Overview

Renders responses for HttpController actions

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.register_renderer(name, content_type, proc) ⇒ Object

Register renderers.



14
15
16
 
# File 'lib/volt/server/rack/http_response_renderer.rb', line 14

def self.register_renderer(name, content_type, proc)
  @renderers[name.to_sym] = { proc: proc, content_type: content_type }
end

.renderers ⇒ Object 



9
10
11
 
# File 'lib/volt/server/rack/http_response_renderer.rb', line 9

def self.renderers
  @renderers
end

Instance Method Details

#render(content) ⇒ Object

Iterate through @renderes to find a matching renderer for the given content and call the given proc. Other params fromt he content are returned as additional headers Returns an empty string if no renderer could be found



26
27
28
29
30
31
32
33
34
35
36
37
38
39
 
# File 'lib/volt/server/rack/http_response_renderer.rb', line 26

def render(content)
  content = content.symbolize_keys
  self.class.renderers.keys.each do |renderer_name|
    if content.key?(renderer_name)
      renderer = self.class.renderers[renderer_name]
      to_render = content.delete(renderer_name)
      rendered = renderer[:proc].call(to_render)
      return [rendered, content.merge(content_type: renderer[:content_type])]
    end
  end

  # If we couldn't find a renderer - just render an empty string
  ['', content_type: 'text/plain']
end