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Re: Itemref on parent entities within the same scope should not inherit itemprop value of the target

From: Jarno van Driel <jarnovandriel@gmail.com>
Date: Fri, 29 May 2015 00:12:29 +0200
Message-ID: <CADK2AU0SbeY_naO+d5+2hXx4dBUaNFeCxEWV5QfDcQfs4bgNrg@mail.gmail.com>
To: Alexandros Zepidis <alexandros@modelisto.com>
Cc: "schema.org Mailing List" <public-schemaorg@w3.org>
If you want to reference an entity without 'copying' the property that's
chaining it to a parent entity, @itemref is the wrong attribute to use. For
this to work you need to <link> element which's @href value points to an
@itemid value instead.

Important detail here is that you add a '#' prefix to the @itemid value
because you want it to be fragment identifier. Without the '#' you'd get a
full url like: http://www.example.com/your-pageAcmeCorp, as opposed to

<body itemscope itemtype="http://schema.org/WebPage">
    <div *itemid="AcmeCorp"* itemprop="publisher" itemscope itemtype="
        <span itemprop="name">Acme Corporation</span>
    <div itemprop="mainEntity" itemscope itemtype="http://schema.org/Person
        <span itemprop="name">Wylie Coyote</span>
       * <link itemprop="affiliation" href="#AcmeCorp">*

2015-05-28 1:27 GMT+02:00 Alexandros Zepidis <alexandros@modelisto.com>:

> Hello fellow professionals,
> I’d like to present something sort of a problem and a possible suggestion
> concerning the usage of itemref.
> It seems as itemref is intended to be used primarily for referencing
> entities that are not descendants of the parent scope. There is also the
> common case where a property is needed to reference an entity higher in
> it’s own dom hierarchy but still be inside the same parent item scope.
> When doing so, the property using itemref will use the target entity but
> is restricted to use any itemprop that was designated on its itemscope
> level as well - which would not always be right for its case.
> I believe that the property (itemref caller) should be able to call just
> the itemref target without inheriting the itemprops designated on that
> itemscope.
> Yours,
> Alexandros Zepidis
> http://modelisto.com
Received on Thursday, 28 May 2015 22:12:57 UTC

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