Class: Mongoid::Persistence::Atomic::AddToSet
- Includes:
- Operation
- Defined in:
- lib/mongoid/persistence/atomic/add_to_set.rb
Overview
This class provides the ability to perform an explicit $addToSet modification on a specific field.
Instance Attribute Summary
Attributes included from Operation
#document, #field, #options, #value
Instance Method Summary collapse
-
#persist ⇒ Object
Sends the atomic $addToSet operation to the database.
Methods included from Operation
#collection, #initialize, #operation, #path, #prepare
Instance Method Details
#persist ⇒ Object
Sends the atomic $addToSet operation to the database.
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# File 'lib/mongoid/persistence/atomic/add_to_set.rb', line 19 def persist prepare do document[field] = [] unless document[field] values = document.send(field) values.push(value) unless values.include?(value) values.tap do if document.persisted? collection.update(document.atomic_selector, operation("$addToSet"), ) document.remove_change(field) end end end end |