Marklogic/XQuery - 无法将结果限制为降序日期并使用元素 XML 标记

Question

我想使用 "element xml {" 语法。但是，我收到错误消息：

XDMP-UNEXPECTED: (err:XPST0003) Unexpected token syntax error, unexpected Rbrace_, expecting Function30_ or Percent

并突出显示最后一个右大括号。我试过取消引用，但这并没有给出正确的效果。

我附上了下面的代码。

xquery version "1.0-ml";
element xml {

let $sorted-articles :=
for $item in (doc()//article)
where ($item//article-meta//article-categories//subj-group[@subj-group-type="content-type"]//subject) = "MyNews"
and ($item//journal-title) = "MyJournal"
order by $item//pub-date/year descending, $item//pub-date/month descending, $item//pub-date/day descending
return $item

for $item at $count in subsequence($sorted-articles, 1, 5)
    return
      element article {
       element journal-title { $item//journal-title },
        element title { $item//article-title },
        element byline { $item//contrib/string-name },
        element body { $item//body },
      element images {
       for $graphic in $item//body//graphic
          return element image { ($graphic//@*[name()="xlink:href"]/data()) }}
          ,element year {$item//pub-date/year/string()},
        element month {$item//pub-date/month/string()},
        element day {$item//pub-date/day/string()},
        element doi { $item//article-id[@pub-id-type="doi"]/text() },
        element doitrim {substring-after($item//article-id[@pub-id-type="doi"]/text(),"/")}
};
};

Answer 1

你的代码末尾有多余的分号，试试这个：

xquery version "1.0-ml";
element xml {

let $sorted-articles :=
for $item in (doc()//article)
where ($item//article-meta//article-categories//subj-group[@subj-group-type="content-type"]//subject) = "MyNews"
and ($item//journal-title) = "MyJournal"
order by $item//pub-date/year descending, $item//pub-date/month descending, $item//pub-date/day descending
return $item

for $item at $count in subsequence($sorted-articles, 1, 5)
    return
      element article {
       element journal-title { $item//journal-title },
        element title { $item//article-title },
        element byline { $item//contrib/string-name },
        element body { $item//body },
      element images {
       for $graphic in $item//body//graphic
          return element image { ($graphic//@*[name()="xlink:href"]/data()) }}
          ,element year {$item//pub-date/year/string()},
        element month {$item//pub-date/month/string()},
        element day {$item//pub-date/day/string()},
        element doi { $item//article-id[@pub-id-type="doi"]/text() },
        element doitrim {substring-after($item//article-id[@pub-id-type="doi"]/text(),"/")}
}
}

HTH！

Marklogic/XQuery - 无法将结果限制为降序日期并使用元素 XML 标记

Marklogic/XQuery - Cannot limit results to Date Descending and use the element XML tag

xml

xquery

marklogic