diff --git a/apps/wpm/services.py b/apps/wpm/services.py
index b407ac82..29343f11 100644
--- a/apps/wpm/services.py
+++ b/apps/wpm/services.py
@@ -2,19 +2,20 @@ from apps.wpm.models import SfLog
 from apps.mtm.models import Shift, Mgroup
 import datetime
 
-def make_sflogs(mgroup: Mgroup, shift: Shift, start_date: datetime.date, end_date: datetime.date):
-    start_time_o = shift.start_time_o
-    end_time_o = shift.end_time_o
-    current_date = start_date
-    while current_date <= end_date:
-        start_time = datetime.datetime.combine(current_date, start_time_o)
-        end_time = datetime.datetime.combine(current_date, end_time_o)
-        if start_time > end_time:
-            start_time -= datetime.timedelta(days=1)
-        SfLog.objects.get_or_create(mgroup=mgroup, shift=shift, start_time=start_time, defaults={
-            "mgroup": mgroup,
-            "shift": shift,
-            "start_time": start_time,
-            "end_time": end_time,
-        })
-        current_date = current_date + datetime.timedelta(days=1)
\ No newline at end of file
+def make_sflogs(mgroup: Mgroup, start_date: datetime.date, end_date: datetime.date):
+    for shift in Shift.objects.all():
+        start_time_o = shift.start_time_o
+        end_time_o = shift.end_time_o
+        current_date = start_date
+        while current_date <= end_date:
+            start_time = datetime.datetime.combine(current_date, start_time_o)
+            end_time = datetime.datetime.combine(current_date, end_time_o)
+            if start_time > end_time:
+                start_time -= datetime.timedelta(days=1)
+            SfLog.objects.get_or_create(mgroup=mgroup, shift=shift, start_time=start_time, defaults={
+                "mgroup": mgroup,
+                "shift": shift,
+                "start_time": start_time,
+                "end_time": end_time,
+            })
+            current_date = current_date + datetime.timedelta(days=1)
\ No newline at end of file
diff --git a/apps/wpm/tasks.py b/apps/wpm/tasks.py
index 40e3f0aa..9377bc24 100644
--- a/apps/wpm/tasks.py
+++ b/apps/wpm/tasks.py
@@ -6,7 +6,7 @@ from apps.utils.sql import DbConnection
 from server.settings import get_sysconfig
 from django.core.cache import cache
 from apps.wpm.models import SfLog
-from apps.mtm.models import Mgroup, Shift
+from apps.mtm.models import Mgroup
 import datetime
 from django.db.models import Sum
 from apps.wpm.services import make_sflogs
@@ -20,7 +20,5 @@ def make_sflogs_simple(days=2):
     start_date = datetime.datetime.today()
     end_date = start_date + datetime.timedelta(days=days)
     mgroups = Mgroup.objects.filter(cate='section').all()
-    shifts = Shift.objects.all()
     for mgroup in mgroups:
-        for shift in shifts:
-            make_sflogs(mgroup, shift, start_date, end_date)
\ No newline at end of file
+            make_sflogs(mgroup, start_date, end_date)
\ No newline at end of file