You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
24 lines
521 B
24 lines
521 B
# 基于Redis实现热门搜索关键字
|
|
class HotSearchKeyword
|
|
class << self
|
|
def add(keyword)
|
|
return if keyword.blank?
|
|
Rails.logger.info("[Hot Keyword] #{keyword} score increment ~")
|
|
Rails.cache.data.zincrby(redis_key, 1, keyword)
|
|
end
|
|
|
|
def hot(limit = 5)
|
|
Rails.cache.data.zrevrange(redis_key, 0, limit - 1)
|
|
end
|
|
|
|
def available?
|
|
Rails.cache.is_a?(ActiveSupport::Cache::RedisStore)
|
|
end
|
|
|
|
private
|
|
|
|
def redis_key
|
|
'educoder:es:hot_keyword'
|
|
end
|
|
end
|
|
end |