Class: ActionView::Renderer
Relationships & Source Files | |
Inherits: | Object |
Defined in: | actionview/lib/action_view/renderer/renderer.rb |
Overview
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 Method Summary
- .new(lookup_context) ⇒ Renderer constructor
Instance Attribute Summary
Instance Method Summary
-
#render(context, options)
Main render entry point shared by Action View and Action Controller.
-
#render_body(context, options)
Render but returns a valid
::Rack
body. - #collection_from_object(object) private
- #collection_from_options(options) private
- #cache_hits Internal use only
-
#render_partial(context, options, &block)
Internal use only
Direct access to partial rendering.
- #render_partial_to_object(context, options, &block) Internal use only
-
#render_template(context, options)
Internal use only
Direct access to template rendering.
- #render_template_to_object(context, options) Internal use only
- #render_to_object(context, options) Internal use only
Constructor Details
.new(lookup_context) ⇒ Renderer
# File 'actionview/lib/action_view/renderer/renderer.rb', line 18
def initialize(lookup_context) @lookup_context = lookup_context end
Instance Attribute Details
#lookup_context (rw)
[ GitHub ]# File 'actionview/lib/action_view/renderer/renderer.rb', line 16
attr_accessor :lookup_context
Instance Method Details
#cache_hits
# File 'actionview/lib/action_view/renderer/renderer.rb', line 58
def cache_hits # :nodoc: @cache_hits ||= {} end
#collection_from_object(object) (private)
[ GitHub ]# File 'actionview/lib/action_view/renderer/renderer.rb', line 109
def collection_from_object(object) object if object.respond_to?(:to_ary) end
#collection_from_options(options) (private)
[ GitHub ]# File 'actionview/lib/action_view/renderer/renderer.rb', line 102
def ( ) if .key?(:collection) collection = [:collection] collection || [] end end
#render(context, options)
Main render entry point shared by Action View and Action Controller.
# File 'actionview/lib/action_view/renderer/renderer.rb', line 23
def render(context, ) render_to_object(context, ).body end
#render_body(context, options)
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.
# File 'actionview/lib/action_view/renderer/renderer.rb', line 40
def render_body(context, ) if .key?(:partial) [render_partial(context, )] else StreamingTemplateRenderer.new(@lookup_context).render(context, ) end end
#render_partial(context, options, &block)
Direct access to partial rendering.
# File 'actionview/lib/action_view/renderer/renderer.rb', line 54
def render_partial(context, , &block) # :nodoc: render_partial_to_object(context, , &block).body end
#render_partial_to_object(context, options, &block)
# File 'actionview/lib/action_view/renderer/renderer.rb', line 66
def render_partial_to_object(context, , &block) # :nodoc: partial = [:partial] if String === partial collection = ( ) if collection # Collection + Partial renderer = CollectionRenderer.new(@lookup_context, ) renderer.render_collection_with_partial(collection, partial, context, block) else if .key?(:object) # Object + Partial renderer = ObjectRenderer.new(@lookup_context, ) renderer.render_object_with_partial( [:object], partial, context, block) else # Partial renderer = PartialRenderer.new(@lookup_context, ) renderer.render(partial, context, block) end end else collection = collection_from_object(partial) || ( ) if collection # Collection + Derived Partial renderer = CollectionRenderer.new(@lookup_context, ) renderer.render_collection_derive_partial(collection, context, block) else # Object + Derived Partial renderer = ObjectRenderer.new(@lookup_context, ) renderer.render_object_derive_partial(partial, context, block) end end end
#render_template(context, options)
Direct access to template rendering.
# File 'actionview/lib/action_view/renderer/renderer.rb', line 49
def render_template(context, ) # :nodoc: render_template_to_object(context, ).body end
#render_template_to_object(context, options)
# File 'actionview/lib/action_view/renderer/renderer.rb', line 62
def render_template_to_object(context, ) # :nodoc: TemplateRenderer.new(@lookup_context).render(context, ) end
#render_to_object(context, options)
# File 'actionview/lib/action_view/renderer/renderer.rb', line 27
def render_to_object(context, ) # :nodoc: if .key?(:partial) render_partial_to_object(context, ) else render_template_to_object(context, ) end end