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couchbasecouchbase-view

Couchbase views query

I have a view which filters out the data for me. I want to add a check in my search criteria => If a field does not exist in document don't consider that document.

Here is my view code, studentId may not be present in all the documents.

function (doc, meta) {
   if(meta.id && meta.id.indexOf("DOCUMENT_") == 0 && doc.studentId != null) {
   emit([doc.studentId, doc.studentStatus, doc.studentName], null);
  }
}

Any pointers?

Solution

  • In your code, simply use the same syntax you used earlier in the if statement:

    if(doc.studentId && meta.id && meta.id.indexOf("DOCUMENT_") == 0) ...

    Note that the following

    if(doc.studentId...

    will return true if studentId is defined, otherwise false.