Module: ActionView::Helpers::OutputSafetyHelper

Included in:
ActionView::Helpers, TagHelper, TagHelper::TagBuilder, TextHelper
Defined in:
lib/action_view/helpers/output_safety_helper.rb

Overview

Action View Raw Output Helpers

Instance Method Summary collapse

Instance Method Details

#raw(stringish) ⇒ Object

This method outputs without escaping a string. Since escaping tags is now default, this can be used when you don’t want Rails to automatically escape tags. This is not recommended if the data is coming from the user’s input.

For example:

raw @user.name
# => 'Jimmy <alert>Tables</alert>'



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# File 'lib/action_view/helpers/output_safety_helper.rb', line 18

def raw(stringish)
  stringish.to_s.html_safe
end

#safe_join(array, sep = $,) ⇒ Object

This method returns an HTML safe string similar to what Array#join would return. The array is flattened, and all items, including the supplied separator, are HTML escaped unless they are HTML safe, and the returned string is marked as HTML safe.

safe_join([tag.p("foo"), "<p>bar</p>"], "<br>")
# => "<p>foo</p>&lt;br&gt;&lt;p&gt;bar&lt;/p&gt;"

safe_join([tag.p("foo"), tag.p("bar")], tag.br)
# => "<p>foo</p><br><p>bar</p>"



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# File 'lib/action_view/helpers/output_safety_helper.rb', line 33

def safe_join(array, sep = $,)
  sep = ERB::Util.unwrapped_html_escape(sep)

  array.flatten.map! { |i| ERB::Util.unwrapped_html_escape(i) }.join(sep).html_safe
end

#to_sentence(array, options = {}) ⇒ Object

Converts the array to a comma-separated sentence where the last element is joined by the connector word. This is the html_safe-aware version of ActiveSupport’s Array#to_sentence.



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# File 'lib/action_view/helpers/output_safety_helper.rb', line 43

def to_sentence(array, options = {})
  options.assert_valid_keys(:words_connector, :two_words_connector, :last_word_connector, :locale)

  default_connectors = {
    words_connector: ", ",
    two_words_connector: " and ",
    last_word_connector: ", and "
  }
  if defined?(I18n)
    i18n_connectors = I18n.translate(:'support.array', locale: options[:locale], default: {})
    default_connectors.merge!(i18n_connectors)
  end
  options = default_connectors.merge!(options)

  case array.length
  when 0
    "".html_safe
  when 1
    ERB::Util.html_escape(array[0])
  when 2
    safe_join([array[0], array[1]], options[:two_words_connector])
  else
    safe_join([safe_join(array[0...-1], options[:words_connector]), options[:last_word_connector], array[-1]], nil)
  end
end