class Person < ActiveRecord::Base
  has_many :parenthoods
  has_many :children, through: :parenthoods

  validates :first_name, presence: true
  validates :last_name, presence: true

  scope :with_name, lambda { |name|
    where("concat(first_name, ' ', last_name) RLIKE ?", name)
  }

  scope :just_parents, lambda {
    joins(:children)
      .order(:first_name)
      .uniq
  }

  scope :staff, -> { where(staff: true) }

  scope :admins, -> { where(admin: true) }

  def name
    "#{first_name} #{last_name}"
  end
end