Class: ActionView::Helpers::InstanceTag

Inherits:
Object
  • Object
show all
Includes:
FormOptionsHelper, FormTagHelper, TagHelper
Defined in:
lib/action_view/helpers/date_helper.rb,
lib/action_view/helpers/form_helper.rb,
lib/action_view/helpers/form_options_helper.rb,
lib/action_view/helpers/active_record_helper.rb

Overview

:nodoc:

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

Class Method Summary collapse

Instance Method Summary collapse

Methods included from FormOptionsHelper

#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 TagHelper

#cdata_section, #escape_once

Methods included from FormTagHelper

#check_box_tag, #field_set_tag, #file_field_tag, #form_tag, #hidden_field_tag, #image_submit_tag, #label_tag, #password_field_tag, #radio_button_tag, #select_tag, #submit_tag, #text_area_tag, #text_field_tag

Constructor Details

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

Returns a new instance of InstanceTag.



745
746
747
748
749
750
751
752
753
754
755
756
 
# File 'lib/action_view/helpers/form_helper.rb', line 745

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

Instance Attribute Details

#method_name ⇒ Object (readonly)

Returns the value of attribute method_name.



739
740
741
 
# File 'lib/action_view/helpers/form_helper.rb', line 739

def method_name
  @method_name
end

#object_name ⇒ Object (readonly)

Returns the value of attribute object_name.



739
740
741
 
# File 'lib/action_view/helpers/form_helper.rb', line 739

def object_name
  @object_name
end

Class Method Details

.check_box_checked?(value, checked_value) ⇒ Boolean

Returns:

  • (Boolean) 


886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
 
# File 'lib/action_view/helpers/form_helper.rb', line 886

def check_box_checked?(value, checked_value)
  case value
  when TrueClass, FalseClass
    value
  when NilClass
    false
  when Integer
    value != 0
  when String
    value == checked_value
  when Array
    value.include?(checked_value)
  else
    value.to_i != 0
  end
end

.radio_button_checked?(value, checked_value) ⇒ Boolean

Returns:

  • (Boolean) 


903
904
905
 
# File 'lib/action_view/helpers/form_helper.rb', line 903

def radio_button_checked?(value, checked_value)
  value.to_s == checked_value.to_s
end

.value(object, method_name) ⇒ Object 



874
875
876
 
# File 'lib/action_view/helpers/form_helper.rb', line 874

def value(object, method_name)
  object.send method_name unless object.nil?
end

.value_before_type_cast(object, method_name) ⇒ Object 



878
879
880
881
882
883
884
 
# File 'lib/action_view/helpers/form_helper.rb', line 878

def value_before_type_cast(object, method_name)
  unless object.nil?
    object.respond_to?(method_name + "_before_type_cast") ?
    object.send(method_name + "_before_type_cast") :
    object.send(method_name)
  end
end

Instance Method Details

#column_type ⇒ Object 



300
301
302
 
# File 'lib/action_view/helpers/active_record_helper.rb', line 300

def column_type
  object.send(:column_for_attribute, @method_name).type
end

#content_tag(name, value, options) ⇒ Object 



257
258
259
260
261
262
263
 
# File 'lib/action_view/helpers/active_record_helper.rb', line 257

def content_tag(name, value, options)
  if object.respond_to?(:errors) && object.errors.respond_to?(:on)
    error_wrapping(content_tag_without_error_wrapping(name, value, options), object.errors.on(@method_name))
  else
    content_tag_without_error_wrapping(name, value, options)
  end
end

#content_tag_without_error_wrapping ⇒ Object 



256
 
# File 'lib/action_view/helpers/active_record_helper.rb', line 256

alias_method :content_tag_without_error_wrapping, :content_tag

#error_message ⇒ Object 



296
297
298
 
# File 'lib/action_view/helpers/active_record_helper.rb', line 296

def error_message
  object.errors.on(@method_name)
end

#error_wrapping(html_tag, has_error) ⇒ Object 



292
293
294
 
# File 'lib/action_view/helpers/active_record_helper.rb', line 292

def error_wrapping(html_tag, has_error)
  has_error ? Base.field_error_proc.call(html_tag, self) : html_tag
end

#object ⇒ Object 



857
858
859
860
861
862
863
 
# File 'lib/action_view/helpers/form_helper.rb', line 857

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

#tag(name, options) ⇒ Object 



248
249
250
251
252
253
254
 
# File 'lib/action_view/helpers/active_record_helper.rb', line 248

def tag(name, options)
  if object.respond_to?(:errors) && object.errors.respond_to?(:on)
    error_wrapping(tag_without_error_wrapping(name, options), object.errors.on(@method_name))
  else
    tag_without_error_wrapping(name, options)
  end
end

#tag_without_error_wrapping ⇒ Object 



247
 
# File 'lib/action_view/helpers/active_record_helper.rb', line 247

alias_method :tag_without_error_wrapping, :tag

#to_boolean_select_tag(options = {}) ⇒ Object 



840
841
842
843
844
845
846
847
848
849
850
851
 
# File 'lib/action_view/helpers/form_helper.rb', line 840

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 



823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
 
# File 'lib/action_view/helpers/form_helper.rb', line 823

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
  add_default_name_and_id(options)
  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_collection_select_tag(collection, value_method, text_method, options, html_options) ⇒ Object 



536
537
538
539
540
541
542
543
544
545
 
# File 'lib/action_view/helpers/form_options_helper.rb', line 536

def to_collection_select_tag(collection, value_method, text_method, options, html_options)
  html_options = html_options.stringify_keys
  add_default_name_and_id(html_options)
  value = value(object)
  disabled_value = options.has_key?(:disabled) ? options[:disabled] : nil
  selected_value = options.has_key?(:selected) ? options[:selected] : value
  content_tag(
    "select", add_options(options_from_collection_for_select(collection, value_method, text_method, :selected => selected_value, :disabled => disabled_value), options, value), html_options
  )
end

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



853
854
855
 
# File 'lib/action_view/helpers/form_helper.rb', line 853

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

#to_date_select_tag(options = {}, html_options = {}) ⇒ Object 



919
920
921
 
# File 'lib/action_view/helpers/date_helper.rb', line 919

def to_date_select_tag(options = {}, html_options = {})
  datetime_selector(options, html_options).select_date.html_safe
end

#to_date_select_tag_without_error_wrapping ⇒ Object 



265
266
267
 
# File 'lib/action_view/helpers/active_record_helper.rb', line 265

def to_date_select_tag(options = {}, html_options = {})
  datetime_selector(options, html_options).select_date.html_safe
end

#to_datetime_select_tag(options = {}, html_options = {}) ⇒ Object 



927
928
929
 
# File 'lib/action_view/helpers/date_helper.rb', line 927

def to_datetime_select_tag(options = {}, html_options = {})
  datetime_selector(options, html_options).select_datetime.html_safe
end

#to_datetime_select_tag_without_error_wrapping ⇒ Object 



274
275
276
 
# File 'lib/action_view/helpers/active_record_helper.rb', line 274

def to_datetime_select_tag(options = {}, html_options = {})
  datetime_selector(options, html_options).select_datetime.html_safe
end

#to_grouped_collection_select_tag(collection, group_method, group_label_method, option_key_method, option_value_method, options, html_options) ⇒ Object 



547
548
549
550
551
552
553
554
 
# File 'lib/action_view/helpers/form_options_helper.rb', line 547

def to_grouped_collection_select_tag(collection, group_method, group_label_method, option_key_method, option_value_method, options, html_options)
  html_options = html_options.stringify_keys
  add_default_name_and_id(html_options)
  value = value(object)
  content_tag(
    "select", add_options(option_groups_from_collection_for_select(collection, group_method, group_label_method, option_key_method, option_value_method, value), options, value), html_options
  )
end

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



783
784
785
786
787
788
789
790
791
792
793
794
795
 
# File 'lib/action_view/helpers/form_helper.rb', line 783

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"] ||= 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 = {}) ⇒ Object 



758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
 
# File 'lib/action_view/helpers/form_helper.rb', line 758

def to_label_tag(text = nil, options = {})
  options = options.stringify_keys
  tag_value = options.delete("value")
  name_and_id = options.dup
  name_and_id["id"] = name_and_id["for"]
  add_default_name_and_id_for_value(tag_value, name_and_id)
  options.delete("index")
  options["for"] ||= name_and_id["id"]

  content = if text.blank?
    i18n_label = I18n.t("helpers.label.#{object_name}.#{method_name}", :default => "")
    i18n_label if i18n_label.present?
  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

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



797
798
799
800
801
802
803
804
805
806
807
808
809
810
 
# File 'lib/action_view/helpers/form_helper.rb', line 797

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_select_tag(choices, options, html_options) ⇒ Object 



527
528
529
530
531
532
533
534
 
# File 'lib/action_view/helpers/form_options_helper.rb', line 527

def to_select_tag(choices, options, html_options)
  html_options = html_options.stringify_keys
  add_default_name_and_id(html_options)
  value = value(object)
  selected_value = options.has_key?(:selected) ? options[:selected] : value
  disabled_value = options.has_key?(:disabled) ? options[:disabled] : nil
  content_tag("select", add_options(options_for_select(choices, :selected => selected_value, :disabled => disabled_value), options, selected_value), html_options)
end

#to_tag(options = {}) ⇒ Object 



227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
 
# File 'lib/action_view/helpers/active_record_helper.rb', line 227

def to_tag(options = {})
  case column_type
    when :string
      field_type = @method_name.include?("password") ? "password" : "text"
      to_input_field_tag(field_type, options)
    when :text
      to_text_area_tag(options)
    when :integer, :float, :decimal
      to_input_field_tag("text", options)
    when :date
      to_date_select_tag(options)
    when :datetime, :timestamp
      to_datetime_select_tag(options)
    when :time
      to_time_select_tag(options)
    when :boolean
      to_boolean_select_tag(options)
  end
end

#to_text_area_tag(options = {}) ⇒ Object 



812
813
814
815
816
817
818
819
820
821
 
# File 'lib/action_view/helpers/form_helper.rb', line 812

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

#to_time_select_tag(options = {}, html_options = {}) ⇒ Object 



923
924
925
 
# File 'lib/action_view/helpers/date_helper.rb', line 923

def to_time_select_tag(options = {}, html_options = {})
  datetime_selector(options, html_options).select_time.html_safe
end

#to_time_select_tag_without_error_wrapping ⇒ Object 



283
284
285
 
# File 'lib/action_view/helpers/active_record_helper.rb', line 283

def to_time_select_tag(options = {}, html_options = {})
  datetime_selector(options, html_options).select_time.html_safe
end

#to_time_zone_select_tag(priority_zones, options, html_options) ⇒ Object 



556
557
558
559
560
561
562
563
564
565
566
 
# File 'lib/action_view/helpers/form_options_helper.rb', line 556

def to_time_zone_select_tag(priority_zones, options, html_options)
  html_options = html_options.stringify_keys
  add_default_name_and_id(html_options)
  value = value(object)
  content_tag("select",
    add_options(
      time_zone_options_for_select(value || options[:default], priority_zones, options[:model] || ActiveSupport::TimeZone),
      options, value
    ), html_options
  )
end

#value(object) ⇒ Object 



865
866
867
 
# File 'lib/action_view/helpers/form_helper.rb', line 865

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

#value_before_type_cast(object) ⇒ Object 



869
870
871
 
# File 'lib/action_view/helpers/form_helper.rb', line 869

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