Module: AbstractController::Rendering

Extended by:
ActiveSupport::Concern
Includes:
ActionView::ViewPaths
Included in:
ActionMailer::Base
Defined in:
actionpack/lib/abstract_controller/rendering.rb

Constant Summary collapse

DEFAULT_PROTECTED_INSTANCE_VARIABLES =
%i(@_action_name @_response_body @_formats @_prefixes)

Instance Method Summary collapse

Methods included from ActiveSupport::Concern

append_features, class_methods, extended, included, prepend_features, prepended

Methods included from ActionView::ViewPaths

#_prefixes, all_view_paths, #append_view_path, #details_for_lookup, get_view_paths, #lookup_context, #prepend_view_path, set_view_paths

Instance Method Details

#render(*args, &block) ⇒ Object

Normalizes arguments, options and then delegates render_to_body and sticks the result in self.response_body.


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# File 'actionpack/lib/abstract_controller/rendering.rb', line 23

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

#render_to_body(options = {}) ⇒ Object

Performs the actual template rendering.


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# File 'actionpack/lib/abstract_controller/rendering.rb', line 51

def render_to_body(options = {})
end

#render_to_string(*args, &block) ⇒ Object

Raw rendering of a template to a string.

It is similar to render, except that it does not set the response_body and it should be guaranteed to always return a string.

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.


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# File 'actionpack/lib/abstract_controller/rendering.rb', line 45

def render_to_string(*args, &block)
  options = _normalize_render(*args, &block)
  render_to_body(options)
end

#rendered_formatObject

Returns Content-Type of rendered content.


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# File 'actionpack/lib/abstract_controller/rendering.rb', line 55

def rendered_format
  Mime[:text]
end

#view_assignsObject

This method should return a hash with assigns. You can overwrite this configuration per controller.


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# File 'actionpack/lib/abstract_controller/rendering.rb', line 63

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