refector: 添加api说明

apps/pm/services.py

@@ -1,2 +1,15 @@
+from apps.sam.models import Order, OrderItem
+from apps.mtm.models import Route
+from rest_framework.exceptions import ParseError
+
 class PmService:
-    pass
+    
+    @classmethod
+    def make_mtasks_by_order(cls, order: Order):
+        """
+        从订单自动生成生产任务
+        """
+        for orderitem in OrderItem.objects.filter(order=order):
+            routes = Route.objects.filter(material=orderitem.material, is_autotask=True)
+            if routes.exists():
+                pass

apps/pm/views.py

@@ -6,6 +6,11 @@ from apps.pm.filters import MtaskFilter
 # Create your views here.
 
 class MtaskViewSet(CustomModelViewSet):
+    """
+    list: 生产任务
+
+    生产任务
+    """
     queryset = Mtask.objects.all()
     serializer_class = MtaskSerializer
     filterset_class = MtaskFilter