Question

I am trying to get the parent document of a new response document so I can duplicate the functionality of form inheritance in xpages. The following is my code and the error being returned:

Error while executing JavaScript action expression
Script interpreter error, line=3, col=60: 'parentDoc' is null
JavaScript code

   1: if (document2.isNewNote()) {
   2: var parentDoc:NotesDocument = database.getDocumentByID(document2.getParentId());
   3: getComponent("immediateParentSubject1").setValue(parentDoc.getItemValueString("Subject"));
   4: }

Answer 1

I usually use a dataContext and getParentDocumentUNID() when I need a handle on the parent document for the variable “document”. You can use this for a new document (not saved yet):

<xp:this.dataContexts>
    <xp:dataContext var="parentDoc">
        <xp:this.value><![CDATA[#{javascript:
            try {
                if (document.isResponse()) {
                    return database.getDocumentByUNID(document.getDocument().getParentDocumentUNID());
                } else {
                    return "";
                }
            } catch(e) {
                return "";
        }}]]></xp:this.value>
    </xp:dataContext>
</xp:this.dataContexts>

You can then use parentDoc in other controls and do parentDoc.getItemValueString("Subject") etc.