added protect on each ams model, new migration file

app/entities/migrations/0009_auto_20200317_1203.py

+# Generated by Django 2.2 on 2020-03-17 12:03
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('entities', '0008_delete_assetgroup'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='amsasset',
+            name='asset_type',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='ams_asset_type', to='entities.AMSAssetType', to_field='code'),
+        ),
+        migrations.AlterField(
+            model_name='amsasset',
+            name='code',
+            field=models.CharField(default='', max_length=255, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='amsasset',
+            name='created_by',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='ams_asset_created_by', to=settings.AUTH_USER_MODEL, to_field='code'),
+        ),
+        migrations.AlterField(
+            model_name='amsassetgroup',
+            name='created_by',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='ams_asset_group_created_by', to=settings.AUTH_USER_MODEL, to_field='code'),
+        ),
+        migrations.AlterField(
+            model_name='amsassetstock',
+            name='asset',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='ams_asset_to_assetdetail', to='entities.AMSAsset', to_field='code'),
+        ),
+        migrations.AlterField(
+            model_name='amsassetstock',
+            name='asset_group',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='ams_asset_to_assetgroup', to='entities.AMSAssetGroup', to_field='code'),
+        ),
+        migrations.AlterField(
+            model_name='amsassetstock',
+            name='code',
+            field=models.CharField(default='', max_length=255, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='amsassetstock',
+            name='manager',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='ams_asset_manager', to=settings.AUTH_USER_MODEL, to_field='code'),
+        ),
+        migrations.AlterField(
+            model_name='amsassetstock',
+            name='user_client',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='ams_asset_user_client', to=settings.AUTH_USER_MODEL, to_field='code'),
+        ),
+        migrations.AlterField(
+            model_name='amsassettype',
+            name='created_by',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='ams_asset_type_created_by', to=settings.AUTH_USER_MODEL, to_field='code'),
+        ),
+        migrations.AlterField(
+            model_name='amsprivilege',
+            name='department',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='ams_privilege_departments', to='entities.Department', to_field='code'),
+        ),
+        migrations.AlterField(
+            model_name='amsprivilege',
+            name='id_number',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='ams_privilege_id_number', to=settings.AUTH_USER_MODEL, to_field='code'),
+        ),
+    ]

app/entities/models.py

@@ -1249,13 +1249,13 @@ class ChangeRequestSettings(models.Model):
 class AMSPrivilege(models.Model):
     id_number = models.ForeignKey(
         User,
-        on_delete=models.CASCADE,
+        on_delete=models.PROTECT,
         to_field='code',
         related_name='ams_privilege_id_number'
     )
     department = models.ForeignKey(
         Department,
-        on_delete=models.CASCADE,
+        on_delete=models.PROTECT,
         related_name='ams_privilege_departments',
         to_field='code'
     )
@@ -1281,7 +1281,7 @@ class AMSAssetGroup(models.Model):
         max_length=255)
     created_by = models.ForeignKey(
         User,
-        on_delete=models.CASCADE,
+        on_delete=models.PROTECT,
         to_field='code',
         related_name='ams_asset_group_created_by'
     )
@@ -1319,7 +1319,7 @@ class AMSAssetType(models.Model):
     )
     created_by = models.ForeignKey(
         User,
-        on_delete=models.CASCADE,
+        on_delete=models.PROTECT,
         to_field='code',
         related_name='ams_asset_type_created_by'
     )
@@ -1354,7 +1354,7 @@ class AMSAsset(models.Model):
         max_length=255)
     asset_type = models.ForeignKey(
         AMSAssetType,
-        on_delete=models.CASCADE,
+        on_delete=models.PROTECT,
         to_field='code',
         related_name='ams_asset_type'
     )
@@ -1364,7 +1364,7 @@ class AMSAsset(models.Model):
         max_length=255)
     created_by = models.ForeignKey(
         User,
-        on_delete=models.CASCADE,
+        on_delete=models.PROTECT,
         to_field='code',
         related_name='ams_asset_created_by'
     )
@@ -1412,13 +1412,13 @@ class AMSAssetStock(models.Model):
     )
     user_client = models.ForeignKey(
         User,
-        on_delete=models.CASCADE,
+        on_delete=models.PROTECT,
         to_field='code',
         related_name='ams_asset_user_client'
     )
     manager = models.ForeignKey(
         User,
-        on_delete=models.CASCADE,
+        on_delete=models.PROTECT,
         to_field='code',
         related_name='ams_asset_manager'
     )
@@ -1428,13 +1428,13 @@ class AMSAssetStock(models.Model):
     )
     asset = models.ForeignKey(
         AMSAsset,
-        on_delete=models.CASCADE,
+        on_delete=models.PROTECT,
         to_field='code',
         related_name='ams_asset_to_assetdetail'
     )
     asset_group = models.ForeignKey(
         AMSAssetGroup,
-        on_delete=models.CASCADE,
+        on_delete=models.PROTECT,
         to_field='code',
         related_name='ams_asset_to_assetgroup'
     )