mirror of
https://github.com/rails/rails.git
synced 2022-11-09 12:12:34 -05:00
94 lines
3.3 KiB
Ruby
94 lines
3.3 KiB
Ruby
require 'active_support/core_ext/object/try'
|
|
|
|
module ActionView
|
|
module Rendering
|
|
# Returns the result of a render that's dictated by the options hash. The primary options are:
|
|
#
|
|
# * <tt>:partial</tt> - See ActionView::Partials.
|
|
# * <tt>:update</tt> - Calls update_page with the block given.
|
|
# * <tt>:file</tt> - Renders an explicit template file (this used to be the old default), add :locals to pass in those.
|
|
# * <tt>:inline</tt> - Renders an inline template similar to how it's done in the controller.
|
|
# * <tt>:text</tt> - Renders the text passed in out.
|
|
#
|
|
# If no options hash is passed or :update specified, the default is to render a partial and use the second parameter
|
|
# as the locals hash.
|
|
def render(options = {}, locals = {}, &block) #:nodoc:
|
|
case options
|
|
when Hash
|
|
if block_given?
|
|
content = _render_partial(options.merge(:partial => options[:layout]), &block)
|
|
safe_concat(content)
|
|
else
|
|
_render(options)
|
|
end
|
|
when :update
|
|
update_page(&block)
|
|
else
|
|
_render_partial(:partial => options, :locals => locals)
|
|
end
|
|
end
|
|
|
|
# This is the API to render a ViewContext's template from a controller.
|
|
def render_template(options, &block)
|
|
_evaluate_assigns_and_ivars
|
|
|
|
# TODO Layout for partials should be handled here, because inside the
|
|
# partial renderer it looks for the layout as a partial.
|
|
if options.key?(:partial) && options[:layout]
|
|
options[:layout] = _find_layout(options[:layout])
|
|
end
|
|
|
|
_render(options, &block)
|
|
end
|
|
|
|
# This method holds the common render logic for both controllers and
|
|
# views rendering stacks.
|
|
def _render(options) #:nodoc:
|
|
if options.key?(:partial)
|
|
_render_partial(options)
|
|
else
|
|
template = _determine_template(options)
|
|
yield template if block_given?
|
|
_render_template(template, options[:layout], options)
|
|
end
|
|
end
|
|
|
|
# Determine the template to be rendered using the given options.
|
|
def _determine_template(options) #:nodoc:
|
|
if options.key?(:inline)
|
|
handler = Template.handler_class_for_extension(options[:type] || "erb")
|
|
Template.new(options[:inline], "inline template", handler, {})
|
|
elsif options.key?(:text)
|
|
Template::Text.new(options[:text], self.formats.try(:first))
|
|
elsif options.key?(:_template)
|
|
options[:_template]
|
|
elsif options.key?(:file)
|
|
with_fallbacks { find(options[:file], options[:prefix]) }
|
|
elsif options.key?(:template)
|
|
find(options[:template], options[:prefix])
|
|
end
|
|
end
|
|
|
|
# Renders the given template. An string representing the layout can be
|
|
# supplied as well.
|
|
def _render_template(template, layout = nil, options = {}) #:nodoc:
|
|
locals = options[:locals] || {}
|
|
layout = _find_layout(layout) if layout
|
|
|
|
ActiveSupport::Notifications.instrument("action_view.render_template",
|
|
:identifier => template.identifier, :layout => layout.try(:identifier)) do
|
|
|
|
content = template.render(self, locals) { |*name| _layout_for(*name) }
|
|
@_content_for[:layout] = content
|
|
|
|
if layout
|
|
@_layout = layout.identifier
|
|
content = _render_layout(layout, locals)
|
|
end
|
|
|
|
content
|
|
end
|
|
end
|
|
|
|
end
|
|
end
|