xdmp:使用CPF时的日志错误(MarkLogic)

Question

我尝试按照Marklogic上的教程创建我们自己的CPF。我几乎复制并粘贴了xdmp:log之外的所有代码和大部分功能。一旦完成任务，中央公积金就会结束任务。marklogic的文档可以在这里找到Getting Started with a Simple CPF Application

如果我做错了什么，我会在这里发布我的代码和我所做的事情。

=Documents Used=

add-last-updated.xqy添加到模块DB中的=>

xquery version "1.0-ml";
import module namespace cpf="http://marklogic.com/cpf" 
  at "/MarkLogic/cpf/cpf.xqy";
declare variable $cpf:document-uri as xs:string external;
declare variable $cpf:transition as node() external;
if (cpf:check-transition($cpf:document-uri,$cpf:transition)) then try {
  let $doc := fn:doc($cpf:document-uri)
  return
      xdmp:node-insert-child(
        $doc/book,
        <last-updated>{fn:current-dateTime()}</last-updated>
      ),
  xdmp:log( "add last-updated ran OK" ),
  cpf:success($cpf:document-uri, $cpf:transition, ())
} catch ($e) {
  cpf:failure($cpf:document-uri, $cpf:transition, $e, ())
}
else ()

add-copyright.xqy添加到模块DB中的=>

xquery version "1.0-ml";
import module namespace cpf = "http://marklogic.com/cpf" 
  at "/MarkLogic/cpf/cpf.xqy";
declare variable $cpf:document-uri as xs:string external;
declare variable $cpf:transition as node() external;
if (cpf:check-transition($cpf:document-uri,$cpf:transition)) then try {
  let $doc := fn:doc( $cpf:document-uri )
  return
      xdmp:node-insert-child( 
        $doc/book,
        <copyright>
          <year>2010</year>
          <holder>The Publisher</holder>
        </copyright>),
      xdmp:log( "add copyright ran OK" ),
      cpf:success( $cpf:document-uri, $cpf:transition, () )
}
catch ($e) {
  cpf:failure( $cpf:document-uri, $cpf:transition, $e, () )
}
else ()

copyright.xml =>已添加到管道中并附加到“默认文档”域

<pipeline xmlns="http://marklogic.com/cpf/pipelines">
  <pipeline-name>Copyright Pipeline</pipeline-name>
  <pipeline-description>Pipeline to test CPF</pipeline-description>
  <success-action>
    <module>/MarkLogic/cpf/actions/success-action.xqy</module>
  </success-action>
  <failure-action>
    <module>/MarkLogic/cpf/actions/failure-action.xqy</module>
  </failure-action>
  <state-transition>
    <annotation>
      When a document containing ‘book' as a root element is created, 
      add a ‘copyright' statement.
    </annotation>
    <state>http://marklogic.com/states/initial</state>
    <on-success>http://marklogic.com/states/done</on-success>
    <on-failure>http://marklogic.com/states/error</on-failure>
    <execute>
      <condition>
        <module>/MarkLogic/cpf/actions/namespace-condition.xqy</module>
        <options xmlns="/MarkLogic/cpf/actions/namespace-condition.xqy">
          <root-element>book</root-element>
          <namespace/>
        </options>
      </condition>
      <action>
        <module>add-copyright.xqy</module>
      </action>
    </execute>
  </state-transition>
  <state-transition>
    <annotation>
      When a document containing ‘book' as a root element is updated, 
      add a ‘last-updated' element
    </annotation>
    <state>http://marklogic.com/states/updated</state>
    <on-success>http://marklogic.com/states/done</on-success>
    <on-failure>http://marklogic.com/states/error</on-failure>
    <execute>
      <condition>
        <module>/MarkLogic/cpf/actions/namespace-condition.xqy</module>
        <options xmlns="/MarkLogic/cpf/actions/namespace-condition.xqy">
          <root-element>book</root-element>
          <namespace/>
        </options>
      </condition>
      <action>
        <module>add-last-updated.xqy</module>
      </action>
    </execute>
  </state-transition>
</pipeline>

=Tested Using=

xquery version "1.0-ml";
let $contents :=   
  <book>
    <bookTitle>All About George</bookTitle>
    <chapter1>
      <chapterTitle>Curious George</chapterTitle>
      <para>
        George Washington crossed the Delaware to see what was on the other side.
      </para>
    </chapter1>
  </book>
return
  xdmp:document-insert("/content.xml", $contents)

一般来说，代码可以正常工作，文档在第一次插入时会被编辑输出，如下所示，但是MarkLogic/Data/ logs /8000_ErrorLog中的日志没有更新。此外，当我尝试将xdmp:log放在xdmp: node -insert-child之上时，CPF过早地停止，并且节点不会被编辑。我非常感谢任何建议，以帮助解决这个问题。

<book>
  <bookTitle>All About George</bookTitle>
  <chapter1>
    <chapterTitle>Curious George</chapterTitle>
    <para>
      George Washington crossed the Delaware to see what was on the other side.
    </para>
  </chapter1>
  <copyright>
    <year>2010</year>
    <holder>The Publisher</holder>
  </copyright>
</book>

=Update=

我遵循mholstege建议，删除了我的"return“和"let”语句，并按照grtjn的建议删除了日志。从那里我意识到日志被推入到"TaskServer_Error“日志中。对于我来说，这是一个愚蠢的问题，谢谢你的帮助。

Answer 1

您格式化代码的方式告诉我，您认为xdmp:log和cpf:success行属于return，但事实并非如此:只有return之后的第一个表达式才是。因此，当您重新排序这些行时，您可能会在此模块上得到一个未定义的变量静态错误。您实际上并不需要let和return：您只需将use doc($document-uri)/book直接放在xdmp:node-replace调用中即可。然后，您可以随意重新排序序列。如果希望xdmp:node-replace和xdmp:log位于$doc变量的作用域中，请用括号将该表达式序列括起来。