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[Bug 6288] [UPDUseCase] Static Typing and Parts Q3 Solution 2

From: <bugzilla@wiggum.w3.org>
Date: Tue, 10 Feb 2009 13:09:31 +0000
To: public-qt-comments@w3.org
Message-Id: <E1LWsMl-0003Xt-Hv@wiggum.w3.org>

http://www.w3.org/Bugs/Public/show_bug.cgi?id=6288


Jonathan Robie <jonathan.robie@redhat.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED




--- Comment #1 from Jonathan Robie <jonathan.robie@redhat.com>  2009-02-10 13:09:30 ---
I am fixing this by adding a note to the example:


Solution 2 (using a recursive updating function):

declare updating function 
    local:delete-subtree($p as element(part))
  {
      for $child in doc("part-list.xml")//part
      where $p/@partid eq $child/@partof
      return (
        delete nodes $child,
        local:delete-subtree($child)
      )
  };

for $p in doc("part-list.xml")//part[@name="car"]
return 
  local:delete-subtree($p)


NOTE:

Because this data is not covered by a schema, an implementation that supports
static typing will raise an error for the comparison $p/@partid eq
$child/@partof. This can be solved by creating a schema for the data and
importing it into the query.



Please let me know if this is not sufficient.

Jonathan


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Received on Tuesday, 10 February 2009 13:09:41 UTC

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