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Last active August 26, 2016 09:53
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Upgrading to Mongoid 5.x
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upgrade.md

Upgrade to Mongoid 5.x

Mongoid 5 is a major upgrade to Mongoid for several reasons :

Here is a non comprehensive list of things to chexk or upgrade.

  • Mongoid.yml. The driver changes, so the options you pass to mongoid.yml also do. You should generate a brand new one and find the equivalent options you were using. The sessions entry has been replaced by the clients entry.
  • Aggregation. User.collection.aggregate now requires an array as argument, not a variable number of hashes
  • Moped:: classes like Errors or BSON don't exist anymore.
  • find_and_modify has been removed
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