Methods

Included Modules

Constants

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

Instance Public methods

render(*args, &block)

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.

📝 Source code 
# File actionpack/lib/abstract_controller/rendering.rb, line 25
    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
🔎 See on GitHub

render_to_body(options = {})

Performs the actual template rendering.

📝 Source code 
# File actionpack/lib/abstract_controller/rendering.rb, line 49
    def render_to_body(options = {})
    end
🔎 See on GitHub

render_to_string(*args, &block)

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.

📝 Source code 
# File actionpack/lib/abstract_controller/rendering.rb, line 43
    def render_to_string(*args, &block)
      options = _normalize_render(*args, &block)
      render_to_body(options)
    end
🔎 See on GitHub

rendered_format()

Returns Content-Type of rendered content.

📝 Source code 
# File actionpack/lib/abstract_controller/rendering.rb, line 53
    def rendered_format
      Mime[:text]
    end
🔎 See on GitHub

view_assigns()

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

📝 Source code 
# File actionpack/lib/abstract_controller/rendering.rb, line 61
    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
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Instance Private methods

_normalize_args(action = nil, options = {})

Normalize args by converting render "foo" to render action: "foo" and render "foo/bar" to render file: "foo/bar".

📝 Source code 
# File actionpack/lib/abstract_controller/rendering.rb, line 73
    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
🔎 See on GitHub

_normalize_options(options)

Normalize options.

📝 Source code 
# File actionpack/lib/abstract_controller/rendering.rb, line 88
    def _normalize_options(options) # :doc:
      options
    end
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_process_options(options)

Process extra options.

📝 Source code 
# File actionpack/lib/abstract_controller/rendering.rb, line 93
    def _process_options(options) # :doc:
      options
    end
🔎 See on GitHub