diff options
Diffstat (limited to 'actionpack/lib')
| -rw-r--r-- | actionpack/lib/action_view/helpers/form_helper.rb | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/actionpack/lib/action_view/helpers/form_helper.rb b/actionpack/lib/action_view/helpers/form_helper.rb index 07e2c8d341..319aa36698 100644 --- a/actionpack/lib/action_view/helpers/form_helper.rb +++ b/actionpack/lib/action_view/helpers/form_helper.rb @@ -555,6 +555,19 @@ module ActionView # ... # <% end %> # + # In addition, you may want to have access to the current iteration index. + # In that case, you can use a similar method called fields_for_with_index + # which receives a block with an extra parameter: + # + # <%= form_for @person do |person_form| %> + # ... + # <%= person_form.fields_for_with_index :projects do |project_fields, index| %> + # Position: <%= index %> + # Name: <%= project_fields.text_field :name %> + # <% end %> + # ... + # <% end %> + # # When projects is already an association on Person you can use # +accepts_nested_attributes_for+ to define the writer method for you: # @@ -1216,6 +1229,12 @@ module ActionView RUBY_EVAL end + def fields_for_with_index(record_name, record_object = nil, fields_options = {}, &block) + index = fields_options[:index] || options[:child_index] || nested_child_index(@object_name) + block_with_index = Proc.new{ |obj| block.call(obj, index) } + fields_for(record_name, record_object, fields_options, &block_with_index) + end + def fields_for(record_name, record_object = nil, fields_options = {}, &block) fields_options, record_object = record_object, nil if record_object.is_a?(Hash) fields_options[:builder] ||= options[:builder] |