diff --git a/apps/wpm/models.py b/apps/wpm/models.py
index cbaf639d..52f21f3c 100644
--- a/apps/wpm/models.py
+++ b/apps/wpm/models.py
@@ -127,6 +127,10 @@ class WMaterial(CommonBDModel):
     material_ofrom = models.ForeignKey(Material, verbose_name='原料物料', on_delete=models.SET_NULL, null=True, blank=True, related_name='wm_mofrom')
     number_from = models.TextField("来源于个号", null=True, blank=True)
 
+    @property
+    def belong_dept_or_mgroup_id(self):
+        return self.mgroup.id if self.mgroup else self.belong_dept.id
+        
     @property
     def count_working(self):
         return Mlogb.objects.filter(wm_in=self, mlog__submit_time__isnull=True).aggregate(count=Sum('count_use'))['count'] or 0
@@ -654,10 +658,6 @@ class Handover(CommonADModel):
     @property
     def handoverb(self):
         return Handoverb.objects.filter(handover=self)
-    
-    @property
-    def belong_dept_or_mgroup_id(self):
-        return self.mgroup.id if self.mgroup else self.belong_dept.id
 
 class Handoverb(BaseModel):
     """TN: 子级交接记录