Class: MongoidAbility::AbilityResolver

Inherits:
Object
  • Object
show all
Defined in:
lib/mongoid_ability/ability_resolver.rb

Instance Method Summary collapse

Constructor Details

#initialize(owner, action, subject_type, subject = nil) ⇒ AbilityResolver

Returns a new instance of AbilityResolver.

Raises:

  • (StandardError) 


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# File 'lib/mongoid_ability/ability_resolver.rb', line 4

def initialize owner, action, subject_type, subject=nil
  @subject_class = subject_type.to_s.constantize
  
  raise StandardError, "#{subject_type} class does not have default locks" unless @subject_class.respond_to?(:default_locks)
  raise StandardError, "#{subject_type} class does not have default lock for :#{action} action" unless @subject_class.self_and_ancestors_with_default_locks.any? do |cls|
    cls.default_locks.any?{ |l| l.action == action }
  end

  @owner = owner
  @action = action.to_sym
  @subject_type = subject_type.to_s
  @subject = subject
  @subject_id = subject.id if subject.present?
end

Instance Method Details

#outcome ⇒ Object 



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# File 'lib/mongoid_ability/ability_resolver.rb', line 21

def outcome
  locks_for_subject_type = @owner.locks_relation.for_action(@action).for_subject_type(@subject_type)

  return unless locks_for_subject_type.exists?

  # return outcome if owner defines lock for id
  if @subject.present?
    id_locks = locks_for_subject_type.id_locks.for_subject_id(@subject_id)
    return false if id_locks.any?(&:closed?)
    return true if id_locks.any?(&:open?)
  end

  # return outcome if owner defines lock for subject_type
  class_locks = locks_for_subject_type.class_locks
  return false if class_locks.class_locks.any?(&:closed?)
  return true if class_locks.class_locks.any?(&:open?)

  nil
end