class Geozone < ActiveRecord::Base include Graphqlable has_many :proposals has_many :spending_proposals has_many :debates has_many :users validates :name, presence: true def self.names Geozone.pluck(:name) end def safe_to_destroy? Geozone.reflect_on_all_associations(:has_many).all? do |association| association.klass.where(geozone: self).empty? end end end