diff options
Diffstat (limited to 'railties/guides/source/action_view_overview.textile')
| -rw-r--r-- | railties/guides/source/action_view_overview.textile | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/railties/guides/source/action_view_overview.textile b/railties/guides/source/action_view_overview.textile index bb1b3b5fd8..2c0b81121f 100644 --- a/railties/guides/source/action_view_overview.textile +++ b/railties/guides/source/action_view_overview.textile @@ -585,6 +585,14 @@ Computes the path to an image asset in the +public/images+ directory. Full paths image_path("edit.png") # => /images/edit.png </ruby> +h5. image_url + +Computes the url to an image asset in the +public/images+ directory. This will call +image_path+ internally and merge with your current host or your asset host. + +<ruby> +image_url("edit.png") # => http://www.example.com/images/edit.png +</ruby> + h5. image_tag Returns an html image tag for the source. The source can be a full path or a file that exists in your +public/images+ directory. @@ -629,6 +637,14 @@ Computes the path to a JavaScript asset in the +public/javascripts+ directory. I javascript_path "common" # => /javascripts/common.js </ruby> +h5. javascript_url + +Computes the url to a JavaScript asset in the +public/javascripts+ directory. This will call +javascript_path+ internally and merge with your current host or your asset host. + +<ruby> +javascript_url "common" # => http://www.example.com/javascripts/common.js +</ruby> + h5. stylesheet_link_tag Returns a stylesheet link tag for the sources specified as arguments. If you don't specify an extension, +.css+ will be appended automatically. @@ -659,6 +675,14 @@ Computes the path to a stylesheet asset in the +public/stylesheets+ directory. I stylesheet_path "application" # => /stylesheets/application.css </ruby> +h5. stylesheet_url + +Computes the url to a stylesheet asset in the +public/stylesheets+ directory. This will call +stylesheet_path+ internally and merge with your current host or your asset host. + +<ruby> +stylesheet_url "application" # => http://www.example.com/stylesheets/application.css +</ruby> + h4. AtomFeedHelper h5. atom_feed @@ -1124,6 +1148,79 @@ If <tt>@post.author_id</tt> is 1, this would return: </select> </html> +h5. collection_radio_buttons + +Returns +radio_button+ tags for the collection of existing return values of +method+ for +object+'s class. + +Example object structure for use with this method: + +<ruby> +class Post < ActiveRecord::Base + belongs_to :author +end + +class Author < ActiveRecord::Base + has_many :posts + def name_with_initial + "#{first_name.first}. #{last_name}" + end +end +</ruby> + +Sample usage (selecting the associated Author for an instance of Post, +@post+): + +<ruby> +collection_radio_buttons(:post, :author_id, Author.all, :id, :name_with_initial) +</ruby> + +If <tt>@post.author_id</tt> is 1, this would return: + +<html> +<input id="post_author_id_1" name="post[author_id]" type="radio" value="1" checked="checked" /> +<label for="post_author_id_1">D. Heinemeier Hansson</label> +<input id="post_author_id_2" name="post[author_id]" type="radio" value="2" /> +<label for="post_author_id_2">D. Thomas</label> +<input id="post_author_id_3" name="post[author_id]" type="radio" value="3" /> +<label for="post_author_id_3">M. Clark</label> +</html> + +h5. collection_check_boxes + +Returns +check_box+ tags for the collection of existing return values of +method+ for +object+'s class. + +Example object structure for use with this method: + +<ruby> +class Post < ActiveRecord::Base + has_and_belongs_to_many :author +end + +class Author < ActiveRecord::Base + has_and_belongs_to_many :posts + def name_with_initial + "#{first_name.first}. #{last_name}" + end +end +</ruby> + +Sample usage (selecting the associated Authors for an instance of Post, +@post+): + +<ruby> +collection_check_boxes(:post, :author_ids, Author.all, :id, :name_with_initial) +</ruby> + +If <tt>@post.author_ids</tt> is [1], this would return: + +<html> +<input id="post_author_ids_1" name="post[author_ids][]" type="checkbox" value="1" checked="checked" /> +<label for="post_author_ids_1">D. Heinemeier Hansson</label> +<input id="post_author_ids_2" name="post[author_ids][]" type="checkbox" value="2" /> +<label for="post_author_ids_2">D. Thomas</label> +<input id="post_author_ids_3" name="post[author_ids][]" type="checkbox" value="3" /> +<label for="post_author_ids_3">M. Clark</label> +<input name="post[author_ids][]" type="hidden" value="" /> +</html> + h5. country_options_for_select Returns a string of option tags for pretty much any country in the world. |