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From "Andrew Reslan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (COUCHDB-1476) In view map function doc object does not have .constructor defined on any of the contained objects.
Date Tue, 01 May 2012 17:02:49 GMT
Andrew Reslan created COUCHDB-1476:
--------------------------------------

             Summary: In view map function doc object does not have .constructor defined on
any of the contained objects.
                 Key: COUCHDB-1476
                 URL: https://issues.apache.org/jira/browse/COUCHDB-1476
             Project: CouchDB
          Issue Type: Bug
          Components: JavaScript View Server
    Affects Versions: 1.2
         Environment: CouchDB 1.2 Release binary on Windows 2003
            Reporter: Andrew Reslan
            Priority: Minor


I am doing some complex view map processing using external libraries.

These libraries use the following checks when parsing a JSON document:

function _isObject(v) {
  return (v !== null && !_isUndefined(v) && v.constructor === Object);
}

function _isArray(v) {
  return (v !== null && !_isUndefined(v) && v.constructor === Array);
}

The 'doc' object passed to the mapping function does not appear to have the .constructor property
defined, nor on any of the enclosed objects, this causes the JSON processing to fail.

A simple workaround is to stringily the doc object and parse the results back, the fixed document
then has the .constructor properties correctly set on all objects

var fixed = JSON.parse(JSON.stringify(doc));

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