[FR] Add last updated column for supplier parts (#4214)

* Move to updated Meta mixin

* [FR] Add last updated column for supplier parts
Fixes #3327

* add updated to table

* bump API version

* add missing migration

* incremetn api ;-)

InvenTree/part/migrations/0093_auto_20230115_1404.py

@@ -0,0 +1,28 @@
+# Generated by Django 3.2.16 on 2023-01-15 14:04
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('part', '0092_part_last_stocktake'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='partinternalpricebreak',
+            name='updated',
+            field=models.DateTimeField(auto_now=True, help_text='Timestamp of last update', null=True, verbose_name='Updated'),
+        ),
+        migrations.AddField(
+            model_name='partsellpricebreak',
+            name='updated',
+            field=models.DateTimeField(auto_now=True, help_text='Timestamp of last update', null=True, verbose_name='Updated'),
+        ),
+        migrations.AlterField(
+            model_name='partpricing',
+            name='updated',
+            field=models.DateTimeField(auto_now=True, help_text='Timestamp of last update', null=True, verbose_name='Updated'),
+        ),
+    ]

InvenTree/part/models.py

@@ -2275,7 +2275,7 @@ def after_save_part(sender, instance: Part, created, **kwargs):
             pass
 
 
-class PartPricing(models.Model):
+class PartPricing(common.models.MetaMixin):
     """Model for caching min/max pricing information for a particular Part
 
     It is prohibitively expensive to calculate min/max pricing for a part "on the fly".
@@ -2785,12 +2785,6 @@ class PartPricing(models.Model):
         choices=common.settings.currency_code_mappings(),
     )
 
-    updated = models.DateTimeField(
-        verbose_name=_('Updated'),
-        help_text=_('Timestamp of last pricing update'),
-        auto_now=True
-    )
-
     scheduled_for_update = models.BooleanField(
         default=False,
     )