Class: Mongoid::AtomicUpdatePreparer Private

Inherits:
Object
  • Object
show all
Defined in:
lib/mongoid/atomic_update_preparer.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

A singleton class to assist with preparing attributes for atomic updates.

Once the deprecated Hash#__consolidate__ method is removed entirely, these methods may be moved into Mongoid::Contextual::Mongo as private methods.

Class Method Summary collapse

Class Method Details

.prepare(attributes, klass) ⇒ Hash

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Convert the key/values in the attributes into a hash of atomic updates. Non-operator keys are assumed to use $set operation.

Parameters:

  • klass (Class) —

    The model class.

  • attributes (Hash) —

    The attributes to convert.

Returns:

  • (Hash) —

    The prepared atomic updates.



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# File 'lib/mongoid/atomic_update_preparer.rb', line 21

def prepare(attributes, klass)
  attributes.each_pair.with_object({}) do |(key, value), atomic_updates|
    key = klass.database_field_name(key.to_s)

    if key.to_s.start_with?('$')
      (atomic_updates[key] ||= {}).update(prepare_operation(klass, key, value))
    else
      (atomic_updates['$set'] ||= {})[key] = mongoize_for(key, klass, key, value)
    end
  end
end