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13 lines
463 B
Ruby
13 lines
463 B
Ruby
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# The Tagging join model. This model is automatically generated and added to your app if you run the tagging generator included with has_many_polymorphs.
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class Tagging < ActiveRecord::Base
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belongs_to :tag
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belongs_to :taggable, :polymorphic => true
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# This callback makes sure that an orphaned <tt>Tag</tt> is deleted if it no longer tags anything.
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def after_destroy
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tag.destroy_without_callbacks if tag and tag.taggings.count == 0
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end
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end
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