Saying Model.index(:field => -1)
, more or less, just registers the existence of the index with Model
, it doesn't actually create an index. You're looking for create_indexes
:
- (true) create_indexes
Send the actual index creation comments to the MongoDB driver
So you'd want to say:
Model.index(field: -1)
Model.create_indexes
You can also create them directly through Moped by calling create
on the collection's indexes
:
Mongoid::Sessions.default[:models].indexes.create(field: -1)
Model.collection.indexes.create(field: 1)
# or in newer versions:
Model.collection.indexes.create_one(field: 1)
Mongoid::Sessions
has been renamed to Mongoid::Clients
in newer versions so you might need to say:
Mongoid::Clients.default[:models].indexes.create(field: 1)
Model.collection.indexes.create(field: 1)
# or in even newer versions:
Model.collection.indexes.create_one(field: 1)