File: renderer.rb

package info (click to toggle)
rails 2:4.1.8-1+deb8u4
  • links: PTS, VCS
  • area: main
  • in suites: jessie
  • size: 22,132 kB
  • ctags: 27,642
  • sloc: ruby: 172,886; sql: 43; yacc: 43; sh: 14; makefile: 12
file content (54 lines) | stat: -rw-r--r-- 1,910 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
module ActionView
  # This is the main entry point for rendering. It basically delegates
  # to other objects like TemplateRenderer and PartialRenderer which
  # actually renders the template.
  #
  # The Renderer will parse the options from the +render+ or +render_body+
  # method and render a partial or a template based on the options. The
  # +TemplateRenderer+ and +PartialRenderer+ objects are wrappers which do all
  # the setup and logic necessary to render a view and a new object is created
  # each time +render+ is called.
  class Renderer
    attr_accessor :lookup_context

    def initialize(lookup_context)
      @lookup_context = lookup_context
    end

    # Main render entry point shared by AV and AC.
    def render(context, options)
      if options.respond_to?(:permitted?) && !options.permitted?
        raise ArgumentError, "render parameters are not permitted"
      end

      if options.key?(:partial)
        render_partial(context, options)
      else
        render_template(context, options)
      end
    end

    # Render but returns a valid Rack body. If fibers are defined, we return
    # a streaming body that renders the template piece by piece.
    #
    # Note that partials are not supported to be rendered with streaming,
    # so in such cases, we just wrap them in an array.
    def render_body(context, options)
      if options.key?(:partial)
        [render_partial(context, options)]
      else
        StreamingTemplateRenderer.new(@lookup_context).render(context, options)
      end
    end

    # Direct accessor to template rendering.
    def render_template(context, options) #:nodoc:
      TemplateRenderer.new(@lookup_context).render(context, options)
    end

    # Direct access to partial rendering.
    def render_partial(context, options, &block) #:nodoc:
      PartialRenderer.new(@lookup_context).render(context, options, block)
    end
  end
end