19 lines
398 B
Ruby
19 lines
398 B
Ruby
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class Cacher < ActiveRecord::Observer
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observe :user
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def self.avatar_cache_key(user_id)
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['avatar_img', user_id].cache_key
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end
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def after_update(obj)
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case obj
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when User
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if obj.avatar_image_url_changed? ||
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obj.avatar_image_source_changed? ||
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obj.avatar_state_changed?
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Rails.cache.delete(Cacher.avatar_cache_key(obj.id))
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end
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end
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end
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end
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