40 lines
1.9 KiB
Ruby
40 lines
1.9 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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JOIN_REQUEST_IS_NOT_FOR_RECEIVER_AND_MUSIC_SESSION = "You can only associate a join request with an invitation if that join request comes from the invited user and if it's for the same music session"
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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", :foreign_key => "music_session_id"
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belongs_to :join_request, :inverse_of => :invitations, :class_name => "JamRuby::JoinRequest"
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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_or_requested_to_join
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private
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def require_sender_in_music_session
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if music_session && !music_session.part_of_session?(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_or_requested_to_join
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if !join_request.nil? && (join_request.user != receiver || join_request.music_session != music_session)
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errors.add(:join_request, JOIN_REQUEST_IS_NOT_FOR_RECEIVER_AND_MUSIC_SESSION )
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elsif join_request.nil?
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# we only check for friendship requirement if this was not in response to a join_request
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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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end
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