Module: ActionView::Helpers::InstanceTagMethods

Extended by:
ActiveSupport::Concern
Includes:
Context, CaptureHelper, FormTagHelper, TagHelper
Included in:
InstanceTag
Defined in:
lib/action_view/helpers/form_helper.rb

Overview

:nodoc:

Defined Under Namespace

Modules: ClassMethods

Constant Summary collapse

DEFAULT_FIELD_OPTIONS = 
{ "size" => 30 }.freeze
DEFAULT_RADIO_OPTIONS = 
{ }.freeze
DEFAULT_TEXT_AREA_OPTIONS = 
{ "cols" => 40, "rows" => 20 }.freeze

Constants included from TagHelper

TagHelper::BOOLEAN_ATTRIBUTES

Instance Attribute Summary collapse

Attributes included from Context

#output_buffer

Instance Method Summary collapse

Methods included from CaptureHelper

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

Methods included from Context

#convert_to_model

Methods included from TagHelper

#cdata_section, #content_tag, #escape_once, #tag

Methods included from FormTagHelper

#check_box_tag, #email_field_tag, #field_set_tag, #file_field_tag, #form_tag, #hidden_field_tag, #image_submit_tag, #label_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, #url_field_tag

Methods included from TextHelper

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

Methods included from SanitizeHelper

#sanitize, #sanitize_css, #strip_links, #strip_tags

Methods included from UrlHelper

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

Methods included from ActionDispatch::Routing::UrlFor

#url_for, #url_options

Methods included from ActionDispatch::Routing::PolymorphicRoutes

#polymorphic_path, #polymorphic_url

Instance Attribute Details

#method_name ⇒ Object (readonly)

Returns the value of attribute method_name.



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# File 'lib/action_view/helpers/form_helper.rb', line 857

def method_name
  @method_name
end

#object_name ⇒ Object (readonly)

Returns the value of attribute object_name.



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# File 'lib/action_view/helpers/form_helper.rb', line 857

def object_name
  @object_name
end

Instance Method Details

#initialize(object_name, method_name, template_object, object = nil) ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 863

def initialize(object_name, method_name, template_object, object = nil)
  @object_name, @method_name = object_name.to_s.dup, method_name.to_s.dup
  @template_object = template_object
  @object = object
  if @object_name.sub!(/\[\]$/,"") || @object_name.sub!(/\[\]\]$/,"]")
    if (object ||= @template_object.instance_variable_get("@#{Regexp.last_match.pre_match}")) && object.respond_to?(:to_param)
      @auto_index = object.to_param
    else
      raise ArgumentError, "object[] naming but object param and @object var don't exist or don't respond to to_param: #{object.inspect}"
    end
  end
end

#object ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 997

def object
  @object || @template_object.instance_variable_get("@#{@object_name}")
rescue NameError
  # As @object_name may contain the nested syntax (item[subobject]) we
  # need to fallback to nil.
  nil
end

#to_boolean_select_tag(options = {}) ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 980

def to_boolean_select_tag(options = {})
  options = options.stringify_keys
  add_default_name_and_id(options)
  value = value(object)
  tag_text = "<select"
  tag_text << tag_options(options)
  tag_text << "><option value=\"false\""
  tag_text << " selected" if value == false
  tag_text << ">False</option><option value=\"true\""
  tag_text << " selected" if value
  tag_text << ">True</option></select>"
end

#to_check_box_tag(options = {}, checked_value = "1", unchecked_value = "0") ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 958

def to_check_box_tag(options = {}, checked_value = "1", unchecked_value = "0")
  options = options.stringify_keys
  options["type"]     = "checkbox"
  options["value"]    = checked_value
  if options.has_key?("checked")
    cv = options.delete "checked"
    checked = cv == true || cv == "checked"
  else
    checked = self.class.check_box_checked?(value(object), checked_value)
  end
  options["checked"] = "checked" if checked
  if options["multiple"]
    add_default_name_and_id_for_value(checked_value, options)
    options.delete("multiple")
  else
    add_default_name_and_id(options)
  end
  hidden = tag("input", "name" => options["name"], "type" => "hidden", "value" => options['disabled'] && checked ? checked_value : unchecked_value)
  checkbox = tag("input", options)
  (hidden + checkbox).html_safe
end

#to_content_tag(tag_name, options = {}) ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 993

def to_content_tag(tag_name, options = {})
  content_tag(tag_name, value(object), options)
end

#to_input_field_tag(field_type, options = {}) ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 910

def to_input_field_tag(field_type, options = {})
  options = options.stringify_keys
  options["size"] = options["maxlength"] || DEFAULT_FIELD_OPTIONS["size"] unless options.key?("size")
  options = DEFAULT_FIELD_OPTIONS.merge(options)
  if field_type == "hidden"
    options.delete("size")
  end
  options["type"]  ||= field_type
  options["value"] = options.fetch("value"){ value_before_type_cast(object) } unless field_type == "file"
  options["value"] &&= html_escape(options["value"])
  add_default_name_and_id(options)
  tag("input", options)
end

#to_label_tag(text = nil, options = {}, &block) ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 876

def to_label_tag(text = nil, options = {}, &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["for"] ||= name_and_id["id"]

  if block_given?
    label_tag(name_and_id["id"], options, &block)
  else
    content = if text.blank?
      I18n.t("helpers.label.#{object_name}.#{method_name}", :default => "").presence
    else
      text.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

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

#to_number_field_tag(field_type, options = {}) ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 924

def to_number_field_tag(field_type, options = {})
  options = options.stringify_keys
  if range = options.delete("in") || options.delete("within")
    options.update("min" => range.min, "max" => range.max)
  end
  to_input_field_tag(field_type, options)
end

#to_radio_button_tag(tag_value, options = {}) ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 932

def to_radio_button_tag(tag_value, options = {})
  options = DEFAULT_RADIO_OPTIONS.merge(options.stringify_keys)
  options["type"]     = "radio"
  options["value"]    = tag_value
  if options.has_key?("checked")
    cv = options.delete "checked"
    checked = cv == true || cv == "checked"
  else
    checked = self.class.radio_button_checked?(value(object), tag_value)
  end
  options["checked"]  = "checked" if checked
  add_default_name_and_id_for_value(tag_value, options)
  tag("input", options)
end

#to_text_area_tag(options = {}) ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 947

def to_text_area_tag(options = {})
  options = DEFAULT_TEXT_AREA_OPTIONS.merge(options.stringify_keys)
  add_default_name_and_id(options)

  if size = options.delete("size")
    options["cols"], options["rows"] = size.split("x") if size.respond_to?(:split)
  end

  content_tag("textarea", html_escape(options.delete('value') || value_before_type_cast(object)), options)
end

#value(object) ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 1005

def value(object)
  self.class.value(object, @method_name)
end

#value_before_type_cast(object) ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 1009

def value_before_type_cast(object)
  self.class.value_before_type_cast(object, @method_name)
end