feat: wpr添加初始物料字段

apps/wpmw/migrations/0006_auto_20250513_1100.py

@@ -0,0 +1,25 @@
+# Generated by Django 3.2.12 on 2025-05-13 03:00
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mtm', '0057_process_number_to_batch'),
+        ('wpmw', '0005_wpr_wpr_from'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='wpr',
+            name='material_start',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='material_start_wpr', to='mtm.material', verbose_name='初始物料'),
+        ),
+        migrations.AlterField(
+            model_name='wpr',
+            name='material',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='material_wpr', to='mtm.material', verbose_name='当前物料形态'),
+        ),
+    ]

apps/wpmw/models.py

@@ -16,7 +16,8 @@ class Wpr(BaseModel):
     number = models.CharField("编号", max_length=50, null=True, blank=True)
     version = models.PositiveIntegerField("版本号", default=9999)
     state = models.PositiveSmallIntegerField('状态', default=10, choices=WmStateOption.choices)
-    material = models.ForeignKey(Material, verbose_name="当前物料形态", on_delete=models.CASCADE)
+    material = models.ForeignKey(Material, verbose_name="当前物料形态", on_delete=models.CASCADE, related_name="material_wpr")
+    material_start = models.ForeignKey(Material, verbose_name="初始物料", on_delete=models.CASCADE, null=True, blank=True, related_name="material_start_wpr")
     defects = models.ManyToManyField("qm.defect", through="wpmw.wprdefect", verbose_name="缺陷项")
 
 
@@ -27,6 +28,7 @@ class Wpr(BaseModel):
 
     @classmethod
     def change_or_new(cls, wpr=None, number=None, mb=None, wm=None, old_mb=None, old_wm=None, ftest=None, wpr_from=None):
+        is_create = False
         if wpr is None and number is None:
             raise ParseError("id和number不能同时为空")
         if mb and wm:
@@ -48,6 +50,7 @@ class Wpr(BaseModel):
                         ins = cls(number=number)
                         ins.version = -1
                         ins.oinfo = {}
+                        is_create = True
                     else:
                         raise ParseError(f"该物料编号{number}-已存在不可使用")
                 else:
@@ -56,6 +59,7 @@ class Wpr(BaseModel):
                 ins = cls(number=number)
                 ins.version = -1
                 ins.oinfo = {}
+                is_create = True
                 # if batch_from: # 尝试从批号追踪来源
                 #     ins_from = cls.objects.filter(number=batch_from).order_by("-version").first()
                 #     if ins_from:
@@ -86,11 +90,15 @@ class Wpr(BaseModel):
         ins.mb = mb
         if mb:
             ins.material = mb.material
+            if is_create:
+                ins.material_start = mb.material
 
         ins.wm = wm
         if wm:
             ins.material = wm.material
             ins.state = wm.state
+            if is_create:
+                ins.material_start = wm.material
             WprDefect.objects.filter(wpr=ins).delete()
             if wm.defect:
                 WprDefect.objects.create(wpr=ins, defect=wm.defect, is_main=True)