I started using Mongoid 5 gem and so far looks OK in my Rails projects.

But I am also doing lots of batch data importing. My first observation was that loops with 1000 find_by clauses went from less then 3 seconds to more than 4 seconds. Which I can tolerate.

Bigger problem is that bulk inserting doesn't work anymore. Bulk inserts are more than 10x faster on Mongoid 4 so I would like to know, how to accomplish them in Mongoid 5.

Old code: result = MyCollection.collection.insert(@bulk) throws undefined method `insert' for #<Mongo::Collection:0x4f3039b0>" exception.

Thank for your reply
Damjan Rems (http://www.drgcms.org)