33 lines
1.2 KiB
Ruby
33 lines
1.2 KiB
Ruby
module JamRuby
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class Invitation < ActiveRecord::Base
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FRIENDSHIP_REQUIRED_VALIDATION_ERROR = "You can only invite friends"
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MEMBERSHIP_REQUIRED_OF_MUSIC_SESSION = "You must be a member of the music session to send invitations on behalf of it"
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self.primary_key = 'id'
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belongs_to :sender, :inverse_of => :sent_invitations, :class_name => "JamRuby::User", :foreign_key => "sender_id"
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belongs_to :receiver, :inverse_of => :received_invitations, :class_name => "JamRuby::User", :foreign_key => "receiver_id"
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belongs_to :music_session, :inverse_of => :invitations, :class_name => "JamRuby::MusicSession"
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validates :sender, :presence => true
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validates :receiver, :presence => true
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validates :music_session, :presence => true
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validate :require_sender_in_music_session, :require_are_friends
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private
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def require_sender_in_music_session
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unless music_session.users.exists? sender
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errors.add(:music_session, MEMBERSHIP_REQUIRED_OF_MUSIC_SESSION)
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end
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end
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def require_are_friends
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unless receiver.friends.exists? sender
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errors.add(:receiver, FRIENDSHIP_REQUIRED_VALIDATION_ERROR)
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end
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end
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end
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end
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