Using schema.org branchOf with itemref

问题

I have a company page that has all the local branches listed on it.

On the page header, I have an itemType of Organization defined.
Each LocalBusiness (Hotel) is further down the page.

For each Hotel, I\'m trying to add the branchOf property using a meta tag, but both Yandex and Google Snippets comes up blank for this attribute. Is it possible to do this way?

<div itemscope itemtype=\"http://schema.org/Organization\" id=\"schema-organization\">
 <meta itemprop=\"description\" content=\"blah blah blah\" />
 <a href=\"/\" itemprop=\"url\">
  <h1 itemprop=\"name\">The Hotel Chain</h1>
 </a>

 <div itemprop=\"address\" itemscope itemtype=\"http://schema.org/PostalAddress\">
  <div itemprop=\"addressLocality\">new york city</div>
  <meta itemprop=\"addressRegion\" content=\"NY\" />
 </div>
</div>
<!-- snip -->
<div itemscope itemtype=\"http://schema.org/Hotel\">
 <meta itemprop=\"branchOf\" itemref=\"schema-organization\" />
 <h2 itemprop=\"name\">Hotel Location 1</h2>
 <a href=\"http://maps.google.com/blahblah\" itemprop=\"map\">Get directions on Google Maps</a>

 <div itemprop=\"geo\" itemscope itemtype=\"http://schema.org/GeoCoordinates\">
  <meta itemprop=\"latitude\" content=\"40.7450605\" />
  <meta itemprop=\"longitude\" content=\"-73.98301879999997\" />
 </div>

 <div class=\"wrap-address clearfix\" itemprop=\"address\" itemscope itemtype=\"http://schema.org/PostalAddress\">
  <ul class=\"ul-reset\">
   <li><span itemprop=\"streetAddress\">1234 Some Street</span> (between 3rd Ave &amp; Lexington Ave)</li>
   <li>
    <span itemprop=\"addressLocality\">New York City</span>, 
    <span itemprop=\"addressRegion\">NY</span> 
    <span itemprop=\"postalCode\">10016</span>
   </li>
  </ul>
 </div>   

 <ul>
  <li><strong>Phone:</strong><span itemprop=\"telephone\">555-555-5555</span></li>
  <li><strong>Fax:</strong><span itemprop=\"faxNumber\">555-555-5555</span></li>
 </ul>
 <ul>
  <li>
   Information:&nbsp;
   <a href=\"mailto:info@hotellocation1.com\" itemprop=\"email\">info@hotellocation1.com</a>
  </li>
  <li itemprop=\"contactPoint\" itemscope itemtype=\"http://schema.org/ContactPoint\">
   <span itemprop=\"contactType\">Reservations</span>:&nbsp;
   <a href=\"mailto:reservations@hotellocation1.com\" itemprop=\"email\">reservations@hotellocation1.com</a>
  </li>
  <li itemprop=\"contactPoint\" itemscope itemtype=\"http://schema.org/ContactPoint\">
   <span itemprop=\"contactType\">Concierge</span>:&nbsp;
   <a href=\"mailto:Concierge@hotellocation1.com\" itemprop=\"email\">Concierge@hotellocation1.com</a>
  </li>
 </ul>
</div>

回答1:

About itemref:

it has to be specified on elements with itemscope
it is used to reference other properties (= itemprop in Microdata)

So this means for you:

move itemref to the Hotel
move itemprop="branchOf" to the Organization

Minimal example:

<div itemprop="branchOf" itemscope itemtype="http://schema.org/Organization" id="schema-organization">
 <h1 itemprop="name">The Hotel Chain</h1>
</div>

<div itemscope itemtype="http://schema.org/Hotel" itemref="schema-organization">
 <h2 itemprop="name">Hotel Location 1</h2>
</div>

来源：https://stackoverflow.com/questions/21146046/using-schema-org-branchof-with-itemref

标签

microdata

schema.org