diff options
Diffstat (limited to 'actionview/lib/action_view')
| -rw-r--r-- | actionview/lib/action_view/helpers/form_options_helper.rb | 21 | ||||
| -rw-r--r-- | actionview/lib/action_view/helpers/form_tag_helper.rb | 17 |
2 files changed, 36 insertions, 2 deletions
diff --git a/actionview/lib/action_view/helpers/form_options_helper.rb b/actionview/lib/action_view/helpers/form_options_helper.rb index d3deee0df3..1b7b188d65 100644 --- a/actionview/lib/action_view/helpers/form_options_helper.rb +++ b/actionview/lib/action_view/helpers/form_options_helper.rb @@ -707,6 +707,27 @@ module ActionView # collection_check_boxes(:post, :author_ids, Author.all, :id, :name_with_initial) do |b| # b.label(:"data-value" => b.value) { b.check_box + b.text } # end + # + # ==== Gotcha + # + # When no selection is made for a collection of checkboxes most + # web browsers will not send any value. + # + # For example, if we have a +User+ model with +category_ids+ field and we + # have the following code in our update action: + # + # @user.update(params[:user]) + # + # If no +category_ids+ are selected then we can safely assume this field + # will not be updated. + # + # This is possible thanks to a hidden field generated by the helper method + # for every collection of checkboxes. + # This hidden field is given the same field name as the checkboxes with a + # blank value. + # + # In the rare case you don't want this hidden field, you can pass the + # <tt>include_hidden: false</tt> option to the helper method. def collection_check_boxes(object, method, collection, value_method, text_method, options = {}, html_options = {}, &block) Tags::CollectionCheckBoxes.new(object, method, self, collection, value_method, text_method, options, html_options).render(&block) end diff --git a/actionview/lib/action_view/helpers/form_tag_helper.rb b/actionview/lib/action_view/helpers/form_tag_helper.rb index 1f76f40138..896020bc15 100644 --- a/actionview/lib/action_view/helpers/form_tag_helper.rb +++ b/actionview/lib/action_view/helpers/form_tag_helper.rb @@ -448,8 +448,9 @@ module ActionView # <tt>reset</tt>button or a generic button which can be used in # JavaScript, for example. You can use the button tag as a regular # submit tag but it isn't supported in legacy browsers. However, - # the button tag allows richer labels such as images and emphasis, - # so this helper will also accept a block. + # the button tag does allow for richer labels such as images and emphasis, + # so this helper will also accept a block. By default, it will create + # a button tag with type `submit`, if type is not given. # # ==== Options # * <tt>:data</tt> - This option can be used to add custom data attributes. @@ -472,6 +473,15 @@ module ActionView # button_tag # # => <button name="button" type="submit">Button</button> # + # button_tag 'Reset', type: 'reset' + # # => <button name="button" type="reset">Reset</button> + # + # button_tag 'Button', type: 'button' + # # => <button name="button" type="button">Button</button> + # + # button_tag 'Reset', type: 'reset', disabled: true + # # => <button name="button" type="reset" disabled="disabled">Reset</button> + # # button_tag(type: 'button') do # content_tag(:strong, 'Ask me!') # end @@ -479,6 +489,9 @@ module ActionView # # <strong>Ask me!</strong> # # </button> # + # button_tag "Save", data: { confirm: "Are you sure?" } + # # => <button name="button" type="submit" data-confirm="Are you sure?">Save</button> + # # button_tag "Checkout", data: { disable_with: "Please wait..." } # # => <button data-disable-with="Please wait..." name="button" type="submit">Checkout</button> # |