diff --git a/pricing/pricing.py b/pricing/pricing.py
index d441f54..98cc0fe 100644
--- a/pricing/pricing.py
+++ b/pricing/pricing.py
@@ -461,8 +461,15 @@ class PricingProgram:
 	
 	async def buffered_charging(ppid, data):
 		r = await PricingProgram.get_ppid_pricing(ppid)
-		prices = PricingProgram.get_pricing_from_ymalstr(data,
-				r.pricing_data)
+		# get_ppid_pricing 缓存命中时返回 dict(Redis JSON 反序列化)，
+		# 未命中时返回 DictObject(sqlor 行对象)，两者都要兼容。
+		if hasattr(r, 'pricing_data'):
+			pricing_data = r.pricing_data
+		elif isinstance(r, dict):
+			pricing_data = r.get('pricing_data')
+		else:
+			pricing_data = r['pricing_data']
+		prices = PricingProgram.get_pricing_from_ymalstr(data, pricing_data)
 		amt = 0.0
 		for p in prices:
 			p.cost = p.amount  # discount removed