itemOffered and offers do not match in range vs. domain: CreativeWork #637
Description
http://schema.org/offers includes CreativeWork as its domain, while http://schema.org/itemOffered does only include Product in its range..
So currently, you have to use Book -> offers -> Offer for books; Offer -> itemOffered -> Book does not work as of now.
Note: It is not clear to me whether we should simply include CreativeWork in the range of itemOffered. Using multi-typed entities properly would be a cleaner approach
Works:
<body>
<div itemscope itemtype="http://schema.org/Book">
<img itemprop="image" src="catcher-in-the-rye-book-cover.jpg" alt="cover art: red horse, city in background" />
<span itemprop="name">The Catcher in the Rye</span> -
<link itemprop="bookFormat" href="http://schema.org/Paperback">Mass Market Paperback
by <a itemprop="author" href="/author/jd_salinger.html">J.D. Salinger</a>
<div itemprop="offers" itemscope itemtype="http://schema.org/Offer">
Price: <span itemprop="price" content="6.99">$6.99</span>
<meta itemprop="priceCurrency" content="USD" />
<link itemprop="availability" href="http://schema.org/InStock" />In Stock
</div>
Product details
<span itemprop="numberOfPages">224</span> pages
Publisher: <span itemprop="publisher">Little, Brown, and Company</span> -
<meta itemprop="datePublished" content="1991-05-01" />May 1, 1991
Language: <span itemprop="inLanguage">English</span>
ISBN-10: <span itemprop="isbn">0316769487</span>
</div>
...
</body>
Does not work:
<body>
<div itemprop="offers" itemscope itemtype="http://schema.org/Offer">
Price: <span itemprop="price" content="6.99">$6.99</span>
<meta itemprop="priceCurrency" content="USD" />
<link itemprop="availability" href="http://schema.org/InStock" />In Stock
<div itemprop="itemOffered" itemscope itemtype="http://schema.org/Book">
<link itemprop="additionalType" href="http://schema.org/Product" />
<img itemprop="image" src="catcher-in-the-rye-book-cover.jpg" alt="cover art: red horse, city in background" />
<span itemprop="name">The Catcher in the Rye</span> -
<link itemprop="bookFormat" href="http://schema.org/Paperback">Mass Market Paperback
by <a itemprop="author" href="/author/jd_salinger.html">J.D. Salinger</a>
Product details
<span itemprop="numberOfPages">224</span> pages
Publisher: <span itemprop="publisher">Little, Brown, and Company</span> -
<meta itemprop="datePublished" content="1991-05-01" />May 1, 1991
Language: <span itemprop="inLanguage">English</span>
ISBN-10: <span itemprop="isbn">0316769487</span>
</div>
</div>
...
</body>