Class: ActionView::Helpers::InstanceTag

Inherits:
Object
  • Object
show all
Includes:
DateHelper, FormOptionsHelper, 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_TEXT_AREA_OPTIONS = 
{ "wrap" => "virtual", "cols" => 40, "rows" => 20 }.freeze
DEFAULT_DATE_OPTIONS = 
{ :discard_type => true }.freeze

Constants included from FormOptionsHelper

FormOptionsHelper::COUNTRIES

Constants included from DateHelper

DateHelper::DEFAULT_PREFIX

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from FormOptionsHelper

#collection_select, #country_options_for_select, #country_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 DateHelper

#date_select, #datetime_select, #distance_of_time_in_words, #distance_of_time_in_words_to_now, #select_date, #select_datetime, #select_day, #select_hour, #select_minute, #select_month, #select_second, #select_time, #select_year

Constructor Details

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

Returns a new instance of InstanceTag.



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# File 'lib/action_view/helpers/form_helper.rb', line 151

def initialize(object_name, method_name, template_object, local_binding = nil)
  @object_name, @method_name = object_name, method_name
  @template_object, @local_binding = template_object, local_binding
  if @object_name.sub!(/\[\]$/,"")
    @auto_index = @template_object.instance_variable_get("@#{Regexp.last_match.pre_match}").id_before_type_cast
  end
end

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 145

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 145

def object_name
  @object_name
end

Instance Method Details

#column_type ⇒ Object 



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# File 'lib/action_view/helpers/active_record_helper.rb', line 187

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

#content_tag(name, value, options) ⇒ Object 



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# File 'lib/action_view/helpers/active_record_helper.rb', line 153

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 



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# File 'lib/action_view/helpers/active_record_helper.rb', line 152

alias_method :content_tag_without_error_wrapping, :content_tag

#error_message ⇒ Object 



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# File 'lib/action_view/helpers/active_record_helper.rb', line 183

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

#error_wrapping(html_tag, has_error) ⇒ Object 



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# File 'lib/action_view/helpers/active_record_helper.rb', line 179

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

#object ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 231

def object
  @template_object.instance_variable_get "@#{@object_name}"
end

#tag(name, options) ⇒ Object 



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# File 'lib/action_view/helpers/active_record_helper.rb', line 144

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 



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# File 'lib/action_view/helpers/active_record_helper.rb', line 143

alias_method :tag_without_error_wrapping, :tag

#to_boolean_select_tag(options = {}) ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 219

def to_boolean_select_tag(options = {})
  options = options.stringify_keys
  add_default_name_and_id(options)
  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 187

def to_check_box_tag(options = {}, checked_value = "1", unchecked_value = "0")
  options = options.stringify_keys
  options["type"]     = "checkbox"
  options["value"]    = checked_value
  checked = case value
    when TrueClass, FalseClass
      value
    when NilClass
      false
    when Integer
      value != 0
    else
      value.to_i != 0
    end
  if checked
    options["checked"] = "checked"
  else
    options.delete("checked")
  end
  add_default_name_and_id(options)
  tag("input", options) << tag("input", "name" => options["name"], "type" => "hidden", "value" => unchecked_value)
end

#to_collection_select_tag(collection, value_method, text_method, options, html_options) ⇒ Object 



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# File 'lib/action_view/helpers/form_options_helper.rb', line 274

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)
  content_tag(
    "select", add_blank_option(options_from_collection_for_select(collection, value_method, text_method, value), options[:include_blank]), html_options
  )
end

#to_country_select_tag(priority_countries, options, html_options) ⇒ Object 



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# File 'lib/action_view/helpers/form_options_helper.rb', line 282

def to_country_select_tag(priority_countries, options, html_options)
  html_options = html_options.stringify_keys
  add_default_name_and_id(html_options)
  content_tag("select", add_blank_option(country_options_for_select(value, priority_countries), options[:include_blank]), html_options)
end

#to_date_select_tag(options = {}) ⇒ Object 



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# File 'lib/action_view/helpers/date_helper.rb', line 229

def to_date_select_tag(options = {})
  defaults = { :discard_type => true }
  options  = defaults.merge(options)
  options_with_prefix = Proc.new { |position| options.merge(:prefix => "#{@object_name}[#{@method_name}(#{position}i)]") }
  date     = options[:include_blank] ? (value || 0) : (value || Date.today)

  date_select = ""
  options[:order]   = [:month, :year, :day] if options[:month_before_year] # For backwards compatibility
  options[:order] ||= [:year, :month, :day]

  position = {:year => 1, :month => 2, :day => 3}

  discard = {}
  discard[:year]  = true if options[:discard_year]
  discard[:month] = true if options[:discard_month]
  discard[:day]   = true if options[:discard_day] or options[:discard_month]

  options[:order].each do |param|
    date_select << self.send("select_#{param}", date, options_with_prefix.call(position[param])) unless discard[param]
  end

  return date_select
end

#to_date_select_tag_without_error_wrapping ⇒ Object 



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# File 'lib/action_view/helpers/active_record_helper.rb', line 161

def to_date_select_tag(options = {})
  defaults = { :discard_type => true }
  options  = defaults.merge(options)
  options_with_prefix = Proc.new { |position| options.merge(:prefix => "#{@object_name}[#{@method_name}(#{position}i)]") }
  date     = options[:include_blank] ? (value || 0) : (value || Date.today)

  date_select = ""
  options[:order]   = [:month, :year, :day] if options[:month_before_year] # For backwards compatibility
  options[:order] ||= [:year, :month, :day]

  position = {:year => 1, :month => 2, :day => 3}

  discard = {}
  discard[:year]  = true if options[:discard_year]
  discard[:month] = true if options[:discard_month]
  discard[:day]   = true if options[:discard_day] or options[:discard_month]

  options[:order].each do |param|
    date_select << self.send("select_#{param}", date, options_with_prefix.call(position[param])) unless discard[param]
  end

  return date_select
end

#to_date_tag ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 210

def to_date_tag()
  defaults = DEFAULT_DATE_OPTIONS.dup
  date     = value || Date.today
  options  = Proc.new { |position| defaults.merge(:prefix => "#{@object_name}[#{@method_name}(#{position}i)]") }
  html_day_select(date, options.call(3)) +
  html_month_select(date, options.call(2)) +
  html_year_select(date, options.call(1))
end

#to_datetime_select_tag(options = {}) ⇒ Object 



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# File 'lib/action_view/helpers/date_helper.rb', line 253

def to_datetime_select_tag(options = {})
  defaults = { :discard_type => true }
  options  = defaults.merge(options)
  options_with_prefix = Proc.new { |position| options.merge(:prefix => "#{@object_name}[#{@method_name}(#{position}i)]") }
  datetime = options[:include_blank] ? (value || 0) : (value || Time.now)

  datetime_select  = select_year(datetime, options_with_prefix.call(1))
  datetime_select << select_month(datetime, options_with_prefix.call(2)) unless options[:discard_month]
  datetime_select << select_day(datetime, options_with_prefix.call(3)) unless options[:discard_day] || options[:discard_month]
  datetime_select << " &mdash; " + select_hour(datetime, options_with_prefix.call(4)) unless options[:discard_hour]
  datetime_select << " : " + select_minute(datetime, options_with_prefix.call(5)) unless options[:discard_minute] || options[:discard_hour]

  return datetime_select
end

#to_datetime_select_tag_without_error_wrapping ⇒ Object 



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# File 'lib/action_view/helpers/active_record_helper.rb', line 170

def to_datetime_select_tag(options = {})
  defaults = { :discard_type => true }
  options  = defaults.merge(options)
  options_with_prefix = Proc.new { |position| options.merge(:prefix => "#{@object_name}[#{@method_name}(#{position}i)]") }
  datetime = options[:include_blank] ? (value || 0) : (value || Time.now)

  datetime_select  = select_year(datetime, options_with_prefix.call(1))
  datetime_select << select_month(datetime, options_with_prefix.call(2)) unless options[:discard_month]
  datetime_select << select_day(datetime, options_with_prefix.call(3)) unless options[:discard_day] || options[:discard_month]
  datetime_select << " &mdash; " + select_hour(datetime, options_with_prefix.call(4)) unless options[:discard_hour]
  datetime_select << " : " + select_minute(datetime, options_with_prefix.call(5)) unless options[:discard_minute] || options[:discard_hour]

  return datetime_select
end

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



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# File 'lib/action_view/helpers/form_helper.rb', line 159

def to_input_field_tag(field_type, options = {})
  options = options.stringify_keys
  if field_type == "hidden"
    options.delete("size")
  else
    options["size"] ||= options["maxlength"] || DEFAULT_FIELD_OPTIONS["size"]
  end
  options["type"] = field_type
  options["value"] ||= value_before_type_cast unless field_type == "file"
  add_default_name_and_id(options)
  tag("input", options)
end

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



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# File 'lib/action_view/helpers/form_helper.rb', line 172

def to_radio_button_tag(tag_value, options = {})
  options = DEFAULT_FIELD_OPTIONS.merge(options.stringify_keys)
  options["type"]     = "radio"
  options["value"]    = tag_value
  options["checked"]  = "checked" if value == tag_value
  add_default_name_and_id(options)
  tag("input", options)
end

#to_select_tag(choices, options, html_options) ⇒ Object 



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# File 'lib/action_view/helpers/form_options_helper.rb', line 268

def to_select_tag(choices, options, html_options)
  html_options = html_options.stringify_keys
  add_default_name_and_id(html_options)
  content_tag("select", add_blank_option(options_for_select(choices, value), options[:include_blank]), html_options)
end

#to_tag(options = {}) ⇒ Object 



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# File 'lib/action_view/helpers/active_record_helper.rb', line 125

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
      to_input_field_tag("text", options)
    when :date
      to_date_select_tag(options)
    when :datetime
      to_datetime_select_tag(options)
    when :boolean
      to_boolean_select_tag(options)
  end
end

#to_text_area_tag(options = {}) ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 181

def to_text_area_tag(options = {})
  options = DEFAULT_TEXT_AREA_OPTIONS.merge(options.stringify_keys)
  add_default_name_and_id(options)
  content_tag("textarea", html_escape(value_before_type_cast), options)
end

#to_time_zone_select_tag(priority_zones, options, html_options) ⇒ Object 



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# File 'lib/action_view/helpers/form_options_helper.rb', line 288

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

#value ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 235

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

#value_before_type_cast ⇒ Object 



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# File 'lib/action_view/helpers/form_helper.rb', line 239

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