Class: RuboCop::Cop::Rails::UnusedRenderContent

Inherits:

Base

• Object
• Base
• RuboCop::Cop::Rails::UnusedRenderContent

Includes:

RangeHelp

Defined in:

lib/rubocop/cop/rails/unused_render_content.rb

Overview

If you try to render content along with a non-content status code (100-199, 204, 205, or 304), it will be dropped from the response.

This cop checks for uses of ‘render` which specify both body content and a non-content status.

Examples:

# bad
render 'foo', status: :continue
render status: 100, plain: 'Ruby!'

# good
head :continue
head 100

Constant Summary

MSG =

'Do not specify body content for a response with a non-content status code'

RESTRICT_ON_SEND =

%i[render].freeze

NON_CONTENT_STATUS_CODES =

Set[*100..199, 204, 205, 304] & ::Rack::Utils::SYMBOL_TO_STATUS_CODE.values

NON_CONTENT_STATUSES =

Set[
  *::Rack::Utils::SYMBOL_TO_STATUS_CODE.invert.fetch_values(*NON_CONTENT_STATUS_CODES)
]

BODY_OPTIONS =

Set[
  :action,
  :body,
  :content_type,
  :file,
  :html,
  :inline,
  :json,
  :js,
  :layout,
  :plain,
  :raw,
  :template,
  :text,
  :xml
]

Instance Method Summary

• #on_send(node) ⇒ Object

Instance Method Details

#on_send(node) ⇒ Object

# File 'lib/rubocop/cop/rails/unused_render_content.rb', line 59

def on_send(node)
  unused_render_content?(node) do |unused_content_node|
    add_offense(unused_content_node)
  end
end