feat: purchase order item model

printing/migrations/0017_alter_plateorder_image_name.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.2.7 on 2025-11-27 07:27
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('printing', '0016_plateorder_image_name'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='plateorder',
+            name='image_name',
+            field=models.TextField(blank=True, null=True, verbose_name='图片名称'),
+        ),
+    ]

printing/models.py

@@ -16,7 +16,7 @@ class PlateOrder(ModelBase):
     plate_date = models.DateTimeField(null=True, blank=True, verbose_name='下版时间')
     plate_method = models.CharField(max_length=50, blank=True, null=True, verbose_name='开版方式')
     plate_image = models.FileField(upload_to='plate_images/', null=True, blank=True, verbose_name='开版图')
-    image_name = models.CharField(max_length=100, blank=True, null=True, verbose_name='图片名称')
+    image_name = models.TextField(blank=True, null=True, verbose_name='图片名称')
     plate_notes = models.TextField(blank=True, null=True, verbose_name='打版注意事项')
     reprint_reason = models.TextField(blank=True, null=True, verbose_name='复版原因')