Mongo query example

gistfile1.txt

try {
    
   function getNextSequenceValue(sequenceName){

   var sequenceDocument = db.getCollection('counters').findAndModify({
      query:{_id: sequenceName },
      update: {$inc:{sequence_value:1}},
      new:true
   });
	
        return sequenceDocument.sequence_value;
    }

db.getCollection('tree').find().forEach(function(tree){
       db.getCollection('tree').update({ _id: tree._id },
      { $set: { "orderId": NumberInt(getNextSequenceValue('TreeId')) }}
       );
  });

} catch (e) {
   print(e);
}

try {

db.getCollection('frontendUser').find().forEach(function(frontendUser){
db.getCollection('frontendUser').update({ _id: frontendUser._id },
{ $set: { "emailVerified": true }}
);
});

} catch (e) {
print(e);
}