notgiorgi · June 19, 2016 15:19
diff --git a/prod_cat.js b/prod_cat.js
 // Get all products of category with _id:0 and it's child categories
 // category : {
 //   _id : Number,
 //   name : String,
 //   ancestors : Array<_id>
 // }

 var cursor = db.collection('categories').find({  ancestors : 0 });

 cursor.forEach((doc) => {
  db.collection('products').find({ category : doc._id });
 });
	// Get all products of category with _id:0 and it's child categories
	// category : {
	// _id : Number,
	// name : String,
	// ancestors : Array<_id>
	// }

	var cursor = db.collection('categories').find({ ancestors : 0 });

	cursor.forEach((doc) => {
	db.collection('products').find({ category : doc._id });
	});