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mongodb - Batch insert/update using Mongoid?

I googled and all others, but I didn't find the answer. The question is:

Hi, how can I do batch insert with Mongoid to MongoDB?

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You can insert a batch array of hashes using the ruby mongo driver's insert method. From any Mongoid class, you can call collection to access it.

batch = [{:name => "mongodb"}, {:name => "mongoid"}]  
Article.collection.insert(batch)

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