21 lines
448 B
Ruby
21 lines
448 B
Ruby
class Message < ActiveRecord::Base
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belongs_to :user_sender, class_name: "User", foreign_key: "user_sender_id"
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belongs_to :user_target, class_name: "User", foreign_key: "user_target_id"
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validates_presence_of :user_sender, :user_target, :text, on: :create
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def sender
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@sender ||= if self.user_sender.present?
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user_sender
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else
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User.first
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end
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end
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def target
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# can be nil
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@target ||= user_target
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end
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end
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