35 lines
825 B
Ruby
35 lines
825 B
Ruby
class CommentCache
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class<<self
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#-----------------------------新闻回复
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def comment_cache(id)
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key = "comment:"+id.to_s
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data = Rails.cache.read(key) rescue nil
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if data.nil?
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#直接存数据库对象
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data = Comment.find(id) rescue nil
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if data
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Rails.cache.write(key,data,{ expires_in: 90.minutes }) rescue Rails.cache.delete(key)
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end
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end
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data
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end
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#更新
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def update_comment_cache(id,comment)
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key = "comment:"+id.to_s
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data = Rails.cache.read(key)
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if data.nil?
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else
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Rails.cache.write(key,comment,{ expires_in: 90.minutes }) rescue Rails.cache.delete(key)
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end
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end
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#删除
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def delete_comment_cache(id)
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key = "comment:"+id.to_s
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Rails.cache.delete(key)
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end
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end
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end |