feat: MaterialBatch 添加字段以支持追踪原料批次2

apps/inm/services.py

@@ -80,7 +80,6 @@ class InmService:
         out = -1
         默认使用count字段做加减
         """
-        from apps.wpm.models import WMaterial
         if type is None or belong_dept is None:
             mio = i.mio
             type = mio.type
@@ -99,6 +98,7 @@ class InmService:
             defaults=ddict
         )
         if mb.batch_ofrom is None and material.type in [Material.MA_TYPE_GOOD, Material.MA_TYPE_GOOD]:
+            from apps.wpm.models import WMaterial
             wm_qs = WMaterial.objects.filter(material=material, batch=i.batch)
             batchs_count = wm_qs.values_list('batch_ofrom', flat=True).distinct().count()
             if batchs_count > 1: