fix item caching

obj.go

@@ -803,10 +803,15 @@ func loadObjItem() error {
 		c.Code = intl_id
 		c.Name = name
 		c.Weight = weight
+
 		muxObjItem.Lock()
 		cacheObjItem[intl_id] = *c
 		cacheObjItem[name] = *c
 		muxObjItem.Unlock()
+
+		muxObjItemId.Lock()
+		cacheObjItemId[id] = *c
+		muxObjItemId.Unlock()
 	}
 
 	items2, err := db.Query(`SELECT oi.obj_id, oi.intl_id, obn.name, oi.weight FROM obj_item oi, obj_name obn WHERE obn.obj_id = oi.obj_id AND obn.priority > 0;`)

sql.go

@@ -391,7 +391,7 @@ func initDB() {
 
 	_, err = db.Exec(`CREATE VIEW obj_item_name_v AS
                            SELECT obi.obj_id
-                                 ,obi.intl_id
+                                 ,obi.intl_id COLLATE utf8mb4_unicode_ci AS intl_id
                                  ,obn.name COLLATE utf8mb4_unicode_ci AS name
                                  ,obn.priority
                              FROM obj_name obn