text: 
    'use strict';
  
    var mongo     = require('../../../../../configuration/mongodb');
  
    exports.studentLogOut = function( req, res ) {
      mongo.db( 'sessions' )
        .collection( 'sessions' )
        .remove( {_id: req.session.studentUser} )
        .then(function( session ) {
          req.session.studentUser = null;
          res.json({studentIsLogOut: true})
        })
    }
  