diff options
Diffstat (limited to 'actionpack/lib/action_view/helpers/form_options_helper.rb')
| -rw-r--r-- | actionpack/lib/action_view/helpers/form_options_helper.rb | 70 |
1 files changed, 69 insertions, 1 deletions
diff --git a/actionpack/lib/action_view/helpers/form_options_helper.rb b/actionpack/lib/action_view/helpers/form_options_helper.rb index 8cb5882aab..3db5202e7d 100644 --- a/actionpack/lib/action_view/helpers/form_options_helper.rb +++ b/actionpack/lib/action_view/helpers/form_options_helper.rb @@ -162,6 +162,60 @@ module ActionView InstanceTag.new(object, method, self, options.delete(:object)).to_collection_select_tag(collection, value_method, text_method, options, html_options) end + + # Returns <tt><select></tt>, <tt><optgroup></tt> and <tt><option></tt> tags for the collection of existing return values of + # +method+ for +object+'s class. The value returned from calling +method+ on the instance +object+ will + # be selected. If calling +method+ returns +nil+, no selection is made without including <tt>:prompt</tt> + # or <tt>:include_blank</tt> in the +options+ hash. + # + # Parameters: + # * +object+ - The instance of the class to be used for the select tag + # * +method+ - The attribute of +object+ corresponding to the select tag + # * +collection+ - An array of objects representing the <tt><optgroup></tt> tags. + # * +group_method+ - The name of a method which, when called on a member of +collection+, returns an + # array of child objects representing the <tt><option></tt> tags. + # * +group_label_method+ - The name of a method which, when called on a member of +collection+, returns a + # string to be used as the +label+ attribute for its <tt><optgroup></tt> tag. + # * +option_key_method+ - The name of a method which, when called on a child object of a member of + # +collection+, returns a value to be used as the +value+ attribute for its <tt><option></tt> tag. + # * +option_value_method+ - The name of a method which, when called on a child object of a member of + # +collection+, returns a value to be used as the contents of its <tt><option></tt> tag. + # + # Example object structure for use with this method: + # class Continent < ActiveRecord::Base + # has_many :countries + # # attribs: id, name + # end + # class Country < ActiveRecord::Base + # belongs_to :continent + # # attribs: id, name, continent_id + # end + # class City < ActiveRecord::Base + # belongs_to :country + # # attribs: id, name, country_id + # end + # + # Sample usage: + # grouped_collection_select(:city, :country_id, @continents, :countries, :name, :id, :name) + # + # Possible output: + # <select name="city[country_id]"> + # <optgroup label="Africa"> + # <option value="1">South Africa</option> + # <option value="3">Somalia</option> + # </optgroup> + # <optgroup label="Europe"> + # <option value="7" selected="selected">Denmark</option> + # <option value="2">Ireland</option> + # </optgroup> + # </select> + # + def grouped_collection_select(object, method, collection, group_method, group_label_method, option_key_method, option_value_method, options = {}, html_options = {}) + InstanceTag.new(object, method, self, options.delete(:object)).to_grouped_collection_select_tag(collection, group_method, group_label_method, option_key_method, option_value_method, options, html_options) + end + + + # Return select and option tags for the given object and method, using # #time_zone_options_for_select to generate the list of option tags. # @@ -490,6 +544,15 @@ module ActionView ) end + 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 + def to_time_zone_select_tag(priority_zones, options, html_options) html_options = html_options.stringify_keys add_default_name_and_id(html_options) @@ -508,7 +571,8 @@ module ActionView option_tags = "<option value=\"\">#{options[:include_blank] if options[:include_blank].kind_of?(String)}</option>\n" + option_tags end if value.blank? && options[:prompt] - ("<option value=\"\">#{options[:prompt].kind_of?(String) ? options[:prompt] : 'Please select'}</option>\n") + option_tags + prompt = options[:prompt].kind_of?(String) ? options[:prompt] : I18n.translate('support.select.prompt', :default => 'Please select') + "<option value=\"\">#{prompt}</option>\n" + option_tags else option_tags end @@ -524,6 +588,10 @@ module ActionView @template.collection_select(@object_name, method, collection, value_method, text_method, objectify_options(options), @default_options.merge(html_options)) end + def grouped_collection_select(method, collection, group_method, group_label_method, option_key_method, option_value_method, options = {}, html_options = {}) + @template.grouped_collection_select(@object_name, method, collection, group_method, group_label_method, option_key_method, option_value_method, objectify_options(options), @default_options.merge(html_options)) + end + def time_zone_select(method, priority_zones = nil, options = {}, html_options = {}) @template.time_zone_select(@object_name, method, priority_zones, objectify_options(options), @default_options.merge(html_options)) end |