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class ConferenceInvitee < ActiveRecord::Base
attr_accessible :pin, :speaker, :moderator, :phone_number, :phone_number_attributes
belongs_to :conference
belongs_to :phone_book_entry
has_one :phone_number, :as => :phone_numberable, :dependent => :destroy
accepts_nested_attributes_for :phone_number
validates_presence_of :conference_id
validates_presence_of :conference
validates_presence_of :phone_number
validates_numericality_of :pin, :only_integer => true,
:greater_than => 0,
:allow_nil => true,
:allow_blank => true
validates_length_of :pin, :minimum => MINIMUM_PIN_LENGTH,
:allow_nil => true,
:allow_blank => true
validates_inclusion_of :speaker, :in => [true, false]
validates_inclusion_of :moderator, :in => [true, false]
validate :uniqueness_of_phone_number_in_the_parent_conference
validates_uniqueness_of :phone_book_entry_id, :scope => :conference_id, :allow_nil => true
def to_s
"ID #{self.id}"
end
private
def uniqueness_of_phone_number_in_the_parent_conference
if self.conference.conference_invitees.where('id != ?', self.id).count > 0 &&
self.conference.conference_invitees.where('id != ?', self.id).map{|x| x.phone_number.number}.
include?(self.phone_number.number)
errors.add(:base, 'Phone number is not unique within the conference.')
end
end
end
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