sqlx: fixed CacheIndexService initial logic

internal/dao/sakila/sakila.go

@@ -73,16 +73,23 @@ func NewDataService() (core.DataService, core.VersionInfo) {
 	}
 
 	// initialize core.CacheIndexService
-	if cfg.If("SimpleCacheIndex") {
+	cfg.On(cfg.Actions{
+		"SimpleCacheIndex": func() {
 			// simpleCache use special post index service
 			ips = newSimpleIndexPostsService(_db, ths)
 			cis, v = cache.NewSimpleCacheIndexService(ips)
-	} else if cfg.If("BigCacheIndex") {
+		},
+		"BigCacheIndex": func() {
 			// TODO: make cache index post in different scence like friendship/followship/lightship
 			cis, v = cache.NewBigCacheIndexService(ips, ams)
-	} else {
+		},
+		"RedisCacheIndex": func() {
+			cis, v = cache.NewRedisCacheIndexService(ips, ams)
+		},
+	}, func() {
+		// defualt no cache
 		cis, v = cache.NewNoneCacheIndexService(ips)
-	}
+	})
 	logrus.Infof("use %s as cache index service by version: %s", v.Name(), v.Version())
 
 	ds := &dataSrv{