From 8a3ab76a6335f120e49e375e4a44023db9adfd43 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E9=B9=8F=E5=AE=87?=
 <9664676+pengyuthon@user.noreply.gitee.com>
Date: Sat, 20 Sep 2025 19:59:58 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E5=8A=9F=E8=83=BD?=
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---
 yuthon_property/models/property_meter_archives.py | 2 ++
 yuthon_property/models/property_meter_water.py    | 1 +
 2 files changed, 3 insertions(+)

diff --git a/yuthon_property/models/property_meter_archives.py b/yuthon_property/models/property_meter_archives.py
index 9a0030a81..b82793944 100644
--- a/yuthon_property/models/property_meter_archives.py
+++ b/yuthon_property/models/property_meter_archives.py
@@ -226,8 +226,10 @@ class MeterArchivesLine(models.Model):
                 idx = lines.ids.index(line.id)
                 if idx > 0:
                     prev_line = lines[idx - 1]
+                    line.last_read = prev_line.current_read
                     line.last_dosage = (prev_line.current_read or 0) - (prev_line.last_read or 0)
                 else:
+                    line.last_read = 0.0
                     line.last_dosage = 0.0
             else:
                 # 当前记录没有抄表日期，无法计算上次用量
diff --git a/yuthon_property/models/property_meter_water.py b/yuthon_property/models/property_meter_water.py
index 18546e1bc..697dff3b4 100644
--- a/yuthon_property/models/property_meter_water.py
+++ b/yuthon_property/models/property_meter_water.py
@@ -204,6 +204,7 @@ class MeterWaterLine(models.Model):
                 idx = lines.ids.index(line.id)
                 if idx > 0:
                     prev_line = lines[idx - 1]
+                    line.last_read = prev_line.current_read
                     line.last_dosage = (prev_line.current_read or 0) - (prev_line.last_read or 0)
                 else:
                     line.last_dosage = 0.0