module Mongoid::Persistable::Pullable

def pull(pulls)

Returns:
  • (Document) - The document.

Parameters:
  • pulls (Hash) -- The field/value pull pairs.

Other tags:
    Note: - If duplicate values are found they will all be pulled.

Other tags:
    Example: Pull a value from the array. - 
def pull(pulls)
  prepare_atomic_operation do |ops|
    process_atomic_operations(pulls) do |field, value|
      (send(field) || []).delete(value)
      ops[atomic_attribute_name(field)] = value
    end
    { "$pull" => ops }
  end
end

def pull_all(pulls)

Returns:
  • (Document) - The document.

Parameters:
  • pulls (Hash) -- The pull all operations.

Other tags:
    Example: Pull values from the arrays. - 
def pull_all(pulls)
  prepare_atomic_operation do |ops|
    process_atomic_operations(pulls) do |field, value|
      existing = send(field) || []
      value.each{ |val| existing.delete(val) }
      ops[atomic_attribute_name(field)] = value
    end
    { "$pullAll" => ops }
  end
end