11 lines
438 B
Ruby
11 lines
438 B
Ruby
class Relation < ActiveRecord::Base
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belongs_to :target, :polymorphic => true
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belongs_to :object, :polymorphic => true
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ROLES = %w[reader writer admin]
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validates :role, :inclusion => {:in => ROLES}
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scope :by_object, lambda {|obj| {:conditions => ['object_id = ? AND object_type = ?', obj.id, obj.class.to_s]}}
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scope :by_target, lambda {|tar| {:conditions => ['target_id = ? AND target_type = ?', tar.id, tar.class.to_s]}}
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end
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