module AbstractController::Rendering
Constants
- DEFAULT_PROTECTED_INSTANCE_VARIABLES
Public Instance Methods
Normalizes arguments and options, and then delegates to #render_to_body and
sticks the result in self.response_body
.
Supported options depend on the underlying render_to_body
implementation.
# File lib/abstract_controller/rendering.rb, line 24 def render(*args, &block) options = _normalize_render(*args, &block) rendered_body = render_to_body(options) if options[:html] _set_html_content_type else _set_rendered_content_type rendered_format end _set_vary_header self.response_body = rendered_body end
Performs the actual template rendering.
# File lib/abstract_controller/rendering.rb, line 48 def render_to_body(options = {}) end
Similar to render, but only
returns the rendered template as a string, instead of setting
self.response_body
.
If a component extends the semantics of response_body
(as ActionController extends it to be
anything that responds to the method each), this method needs to be
overridden in order to still return a string.
# File lib/abstract_controller/rendering.rb, line 42 def render_to_string(*args, &block) options = _normalize_render(*args, &block) render_to_body(options) end
Returns Content-Type
of rendered content.
# File lib/abstract_controller/rendering.rb, line 52 def rendered_format Mime[:text] end
This method should return a hash with assigns. You can overwrite this configuration per controller.
# File lib/abstract_controller/rendering.rb, line 60 def view_assigns variables = instance_variables - _protected_ivars variables.each_with_object({}) do |name, hash| hash[name.slice(1, name.length)] = instance_variable_get(name) end end
Private Instance Methods
Normalize args by converting render "foo"
to
render :action => "foo"
and render
"foo/bar"
to render :file =>
"foo/bar"
.
# File lib/abstract_controller/rendering.rb, line 72 def _normalize_args(action = nil, options = {}) # :doc: if action.respond_to?(:permitted?) if action.permitted? action else raise ArgumentError, "render parameters are not permitted" end elsif action.is_a?(Hash) action else options end end
Normalize options.
# File lib/abstract_controller/rendering.rb, line 87 def _normalize_options(options) # :doc: options end
Process extra options.
# File lib/abstract_controller/rendering.rb, line 92 def _process_options(options) # :doc: options end
# File lib/abstract_controller/rendering.rb, line 100 def _process_variant(options) end
# File lib/abstract_controller/rendering.rb, line 120 def _protected_ivars DEFAULT_PROTECTED_INSTANCE_VARIABLES end