hot fix for without redis config

lib/weixin_authorize/adapter/redis_storage.rb

@@ -27,7 +27,7 @@ module WeixinAuthorize
     end
     end
 
 
     def weixin_redis
     def weixin_redis
-      WeixinAuthorize.config.redis
+      WeixinAuthorize.weixin_redis
     end
     end
 
 
   end
   end

lib/weixin_authorize/adapter/storage.rb

@@ -10,7 +10,7 @@ module WeixinAuthorize
     end
     end
 
 
     def self.init_with(client)
     def self.init_with(client)
-      if WeixinAuthorize.config.redis.nil?
+      if WeixinAuthorize.weixin_redis.nil?
         ClientStorage.new(client)
         ClientStorage.new(client)
       else
       else
         RedisStorage.new(client)
         RedisStorage.new(client)

lib/weixin_authorize/config.rb

@@ -7,6 +7,11 @@ module WeixinAuthorize
     def configure
     def configure
       yield self.config ||= Config.new
       yield self.config ||= Config.new
     end
     end
+
+    def weixin_redis
+      return nil if WeixinAuthorize.config.nil?
+      @redis ||= WeixinAuthorize.config.redis
+    end
   end
   end
 
 
   class Config
   class Config