60 lines
2.3 KiB
Ruby
60 lines
2.3 KiB
Ruby
#
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# A wrapper around redis that namespaces keys with the current site id
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#
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class DiscourseRedis
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def self.raw_connection(config = nil)
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config ||= self.config
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redis_opts = {host: config['host'], port: config['port'], db: config['db']}
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redis_opts[:password] = config['password'] if config['password']
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Redis.new(redis_opts)
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end
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def self.config
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YAML.load(ERB.new(File.new("#{Rails.root}/config/redis.yml").read).result)[Rails.env]
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end
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def initialize
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@config = DiscourseRedis.config
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@redis = DiscourseRedis.raw_connection(@config)
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end
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# prefix the key with the namespace
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def method_missing(meth, *args, &block)
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if @redis.respond_to?(meth)
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@redis.send(meth, *args, &block)
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else
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super
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end
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end
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# Proxy key methods through, but prefix the keys with the namespace
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%w(append blpop brpop brpoplpush decr decrby del exists expire expireat get getbit getrange getset hdel
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hexists hget hgetall hincrby hincrbyfloat hkeys hlen hmget hmset hset hsetnx hvals incr incrby incrbyfloat
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lindex linsert llen lpop lpush lpushx lrange lrem lset ltrim mget move mset msetnx persist pexpire pexpireat psetex
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pttl rename renamenx rpop rpoplpush rpush rpushx sadd scard sdiff set setbit setex setnx setrange sinter
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sismember smembers sort spop srandmember srem strlen sunion ttl type watch zadd zcard zcount zincrby
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zrange zrangebyscore zrank zrem zremrangebyrank zremrangebyscore zrevrange zrevrangebyscore zrevrank zrangebyscore).each do |m|
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define_method m do |*args|
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args[0] = "#{DiscourseRedis.namespace}:#{args[0]}"
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@redis.send(__method__, *args)
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end
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end
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def self.namespace
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RailsMultisite::ConnectionManagement.current_db
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end
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def self.new_redis_store
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redis_config = YAML.load(ERB.new(File.new("#{Rails.root}/config/redis.yml").read).result)[Rails.env]
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redis_store = ActiveSupport::Cache::RedisStore.new "redis://#{(':' + redis_config['password'] + '@') if redis_config['password']}#{redis_config['host']}:#{redis_config['port']}/#{redis_config['cache_db']}"
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redis_store.options[:namespace] = -> { DiscourseRedis.namespace }
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redis_store
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end
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def url
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"redis://#{(':' + @config['password'] + '@') if @config['password']}#{@config['host']}:#{@config['port']}/#{@config['db']}"
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end
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end
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