Class: ActionView::Helpers::Tags::Label

Inherits:
Base show all
Defined in:
actionview/lib/action_view/helpers/tags/label.rb

Overview

:nodoc:

Constant Summary

Constants included from ActionView::Helpers::TagHelper

ActionView::Helpers::TagHelper::BOOLEAN_ATTRIBUTES, ActionView::Helpers::TagHelper::PRE_CONTENT_STRINGS

Constants included from UrlHelper

UrlHelper::BUTTON_TAG_METHOD_VERBS

Instance Attribute Summary

Attributes inherited from Base

#object

Instance Method Summary collapse

Methods included from FormOptionsHelper

#collection_check_boxes, #collection_radio_buttons, #collection_select, #grouped_collection_select, #grouped_options_for_select, #option_groups_from_collection_for_select, #options_for_select, #options_from_collection_for_select, #select, #time_zone_options_for_select, #time_zone_select

Methods included from ActionView::Helpers::TextHelper

#concat, #current_cycle, #cycle, #excerpt, #highlight, #pluralize, #reset_cycle, #safe_concat, #simple_format, #truncate, #word_wrap

Methods included from ActiveSupport::Concern

#append_features, extended, #included

Methods included from OutputSafetyHelper

#raw, #safe_join

Methods included from ActionView::Helpers::TagHelper

#cdata_section, #content_tag, #escape_once, #tag

Methods included from CaptureHelper

#capture, #content_for, #content_for?, #flush_output_buffer, #provide, #with_output_buffer

Methods included from SanitizeHelper

#sanitize, #sanitize_css, #strip_links, #strip_tags

Methods included from ActiveModelInstanceTag

#content_tag, #error_message, #error_wrapping, #object, #tag

Methods included from FormTagHelper

#button_tag, #check_box_tag, #color_field_tag, #date_field_tag, #datetime_field_tag, #datetime_local_field_tag, #email_field_tag, #field_set_tag, #file_field_tag, #form_tag, #hidden_field_tag, #image_submit_tag, #label_tag, #month_field_tag, #number_field_tag, #password_field_tag, #radio_button_tag, #range_field_tag, #search_field_tag, #select_tag, #submit_tag, #telephone_field_tag, #text_area_tag, #text_field_tag, #time_field_tag, #url_field_tag, #utf8_enforcer_tag, #week_field_tag

Methods included from UrlHelper

#button_to, #current_page?, #link_to, #link_to_if, #link_to_unless, #link_to_unless_current, #mail_to, #url_for

Constructor Details

#initialize(object_name, method_name, template_object, content_or_options = nil, options = nil) ⇒ Label

Returns a new instance of Label.



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# File 'actionview/lib/action_view/helpers/tags/label.rb', line 5

def initialize(object_name, method_name, template_object, content_or_options = nil, options = nil)
  options ||= {}

  content_is_options = content_or_options.is_a?(Hash)
  if content_is_options
    options.merge! content_or_options
    @content = nil
  else
    @content = content_or_options
  end

  super(object_name, method_name, template_object, options)
end

Instance Method Details

#render(&block) ⇒ Object 



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# File 'actionview/lib/action_view/helpers/tags/label.rb', line 19

def render(&block)
  options = @options.stringify_keys
  tag_value = options.delete("value")
  name_and_id = options.dup

  if name_and_id["for"]
    name_and_id["id"] = name_and_id["for"]
  else
    name_and_id.delete("id")
  end

  add_default_name_and_id_for_value(tag_value, name_and_id)
  options.delete("index")
  options.delete("namespace")
  options["for"] = name_and_id["id"] unless options.key?("for")

  if block_given?
    content = @template_object.capture(&block)
  else
    content = if @content.blank?
                @object_name.gsub!(/\[(.*)_attributes\]\[\d+\]/, '.\1')
                method_and_value = tag_value.present? ? "#{@method_name}.#{tag_value}" : @method_name

                if object.respond_to?(:to_model)
                  key = object.class.model_name.i18n_key
                  i18n_default = ["#{key}.#{method_and_value}".to_sym, ""]
                end

                i18n_default ||= ""
                I18n.t("#{@object_name}.#{method_and_value}", :default => i18n_default, :scope => "helpers.label").presence
              else
                @content.to_s
              end

    content ||= if object && object.class.respond_to?(:human_attribute_name)
                  object.class.human_attribute_name(@method_name)
                end

    content ||= @method_name.humanize
  end

  label_tag(name_and_id["id"], content, options)
end