diff options
Diffstat (limited to 'actionpack/lib/action_view')
3 files changed, 83 insertions, 1 deletions
diff --git a/actionpack/lib/action_view/helpers/prototype_helper.rb b/actionpack/lib/action_view/helpers/prototype_helper.rb index ed3f7b7d7f..9fa27d6386 100644 --- a/actionpack/lib/action_view/helpers/prototype_helper.rb +++ b/actionpack/lib/action_view/helpers/prototype_helper.rb @@ -384,8 +384,19 @@ module ActionView # page['blank_slate'] # => $('blank_slate'); # page['blank_slate'].show # => $('blank_slate').show(); # page['blank_slate'].show('first').up # => $('blank_slate').show('first').up(); + # + # You can also pass in a record, which will use ActionController::RecordIdentifier.dom_id to lookup + # the correct id: + # + # page[@post] # => $('post_45') + # page[Post.new] # => $('new_post') def [](id) - JavaScriptElementProxy.new(self, id) + case id + when String, Symbol, NilClass + JavaScriptElementProxy.new(self, id) + else + JavaScriptElementProxy.new(self, ActionController::RecordIdentifier.dom_id(id)) + end end # Returns an object whose <tt>#to_json</tt> evaluates to +code+. Use this to pass a literal JavaScript diff --git a/actionpack/lib/action_view/helpers/record_identification_helper.rb b/actionpack/lib/action_view/helpers/record_identification_helper.rb new file mode 100644 index 0000000000..2e5ff865cc --- /dev/null +++ b/actionpack/lib/action_view/helpers/record_identification_helper.rb @@ -0,0 +1,16 @@ +module RecordIdentificationHelper + # See ActionController::RecordIdentifier.partial_path -- this is just a delegate to that for convenient access in the view. + def partial_path(*args, &block) + ActionController::RecordIdentifier.partial_path(*args, &block) + end + + # See ActionController::RecordIdentifier.dom_class -- this is just a delegate to that for convenient access in the view. + def dom_class(*args, &block) + ActionController::RecordIdentifier.dom_class(*args, &block) + end + + # See ActionController::RecordIdentifier.dom_id -- this is just a delegate to that for convenient access in the view. + def dom_id(*args, &block) + ActionController::RecordIdentifier.dom_id(*args, &block) + end +end
\ No newline at end of file diff --git a/actionpack/lib/action_view/helpers/record_tag_helper.rb b/actionpack/lib/action_view/helpers/record_tag_helper.rb new file mode 100644 index 0000000000..29845ba147 --- /dev/null +++ b/actionpack/lib/action_view/helpers/record_tag_helper.rb @@ -0,0 +1,55 @@ +module RecordTagHelper + # Produces a wrapper DIV element with id and class parameters that + # relate to the specified ActiveRecord object. Usage example: + # + # <% div_for(@person, :class => "foo") do %> + # <%=h @person.name %> + # <% end %> + # + # produces: + # + # <div id="person_123" class="person foo"> Joe Bloggs </div> + # + def div_for(record, *args, &block) + content_tag_for(:div, record, *args, &block) + end + + # content_tag_for creates an HTML element with id and class parameters + # that relate to the specified ActiveRecord object. For example: + # + # <% content_tag_for(:tr, @person) do %> + # <td><%=h @person.first_name %></td> + # <td><%=h @person.last_name %></td> + # <% end %> + # + # would produce hthe following HTML (assuming @person is an instance of + # a Person object, with an id value of 123): + # + # <tr id="person_123" class="person">....</tr> + # + # If you require the HTML id attribute to have a prefix, you can specify it: + # + # <% content_tag_for(:tr, @person, :foo) do %> ... + # + # produces: + # + # <tr id="foo_person_123" class="person">... + # + # content_tag_for also accepts a hash of options, which will be converted to + # additional HTML attributes. If you specify a +:class+ value, it will be combined + # with the default class name for your object. For example: + # + # <% content_tag_for(:li, @person, :class => "bar") %>... + # + # produces: + # + # <li id="person_123" class="person bar">... + # + def content_tag_for(tag_name, record, *args, &block) + prefix = args.first.is_a?(Hash) ? nil : args.shift + options = args.first.is_a?(Hash) ? args.shift : {} + concat content_tag(tag_name, capture(&block), + options.merge({ :class => "#{dom_class(record)} #{options[:class]}".strip, :id => dom_id(record, prefix) })), + block.binding + end +end
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