set on_delete on ForeignKeys, OneToOneFields and TreeForeignKeys

account/models.py

@@ -27,7 +27,7 @@
 
 class Account(models.Model):
 
-    user = models.OneToOneField(User, related_name="account", verbose_name=_("user"))
+    user = models.OneToOneField(User, related_name="account", verbose_name=_("user"), on_delete=models.CASCADE)
     timezone = TimeZoneField(_("timezone"))
     language = models.CharField(_("language"),
         max_length=10,
@@ -127,7 +127,7 @@ class InvalidCode(Exception):
     code = models.CharField(max_length=64, unique=True)
     max_uses = models.PositiveIntegerField(default=0)
     expiry = models.DateTimeField(null=True, blank=True)
-    inviter = models.ForeignKey(User, null=True, blank=True)
+    inviter = models.ForeignKey(User, null=True, blank=True, on_delete=models.SET_NULL)
     email = models.EmailField(blank=True)
     notes = models.TextField(blank=True)
     sent = models.DateTimeField(null=True, blank=True)
@@ -221,8 +221,8 @@ def send(self, **kwargs):
 
 class SignupCodeResult(models.Model):
 
-    signup_code = models.ForeignKey(SignupCode)
-    user = models.ForeignKey(User)
+    signup_code = models.ForeignKey(SignupCode, on_delete=models.CASCADE)
+    user = models.ForeignKey(User, on_delete=models.CASCADE)
     timestamp = models.DateTimeField(default=datetime.datetime.now)
 
     def save(self, **kwargs):
@@ -232,7 +232,7 @@ def save(self, **kwargs):
 
 class EmailAddress(models.Model):
 
-    user = models.ForeignKey(User)
+    user = models.ForeignKey(User, on_delete=models.CASCADE)
     email = models.EmailField(unique=settings.ACCOUNT_EMAIL_UNIQUE)
     verified = models.BooleanField(default=False)
     primary = models.BooleanField(default=False)
@@ -285,7 +285,7 @@ def change(self, new_email, confirm=True):
 
 class EmailConfirmation(models.Model):
 
-    email_address = models.ForeignKey(EmailAddress)
+    email_address = models.ForeignKey(EmailAddress, on_delete=models.CASCADE)
     created = models.DateTimeField(default=timezone.now)
     sent = models.DateTimeField(null=True)
     key = models.CharField(max_length=64, unique=True)

general/migrations/0004_auto_20161201_1831.py

@@ -110,11 +110,11 @@ class Migration(migrations.Migration):
         migrations.AlterField(
             model_name='rel_human_jobs',
             name='job',
-            field=mptt.fields.TreeForeignKey(verbose_name='Job', to='general.Job'),
+            field=mptt.fields.TreeForeignKey(verbose_name='Job', to='general.Job', on_delete=models.CASCADE),
         ),
         migrations.AlterField(
             model_name='rel_human_jobs',
             name='relation',
-            field=mptt.fields.TreeForeignKey(related_name='hu_job+', verbose_name='relation', blank=True, to='general.Relation', null=True),
+            field=mptt.fields.TreeForeignKey(related_name='hu_job+', verbose_name='relation', blank=True, to='general.Relation', null=True, on_delete=models.SET_NULL),
         ),
     ]

validation/models.py

@@ -6,9 +6,9 @@
 
 class Validation(models.Model):
     event = models.ForeignKey(EconomicEvent,
-        related_name="validations")
+        related_name="validations", on_delete=models.CASCADE)
     validated_by = models.ForeignKey(EconomicAgent,
-        related_name="validations")
+        related_name="validations", on_delete=models.CASCADE)
     validation_date = models.DateField(auto_now_add=True, blank=True, null=True, editable=False)
     note = models.TextField(blank=True, null=True)
 

valuenetwork/api/models.py

@@ -39,7 +39,7 @@ def formatAgentList(agent_list):
 class QuantityValue(models.Model):
     numeric_value = models.DecimalField(max_digits=8, decimal_places=2,
         default=Decimal("0.00"))
-    unit = models.ForeignKey(Unit, blank=True, null=True,
+    unit = models.ForeignKey(Unit, blank=True, null=True, on_delete=models.SET_NULL,
         related_name="quantity_value_units")
 
     class Meta:
@@ -88,7 +88,7 @@ class Fulfillment(models.Model):
         on_delete=models.DO_NOTHING)
     fulfills = models.ForeignKey(Commitment,
         related_name="fulfillments",
-        on_delete=models.DO_NOTHING) 
+        on_delete=models.DO_NOTHING)
     fulfilled_quantity = models.ForeignKey(QuantityValue,
         related_name="fulfillments",
         on_delete=models.DO_NOTHING)

valuenetwork/valueaccounting/migrations/0002_auto_20160706_2026.py

@@ -14,7 +14,7 @@ class Migration(migrations.Migration):
         migrations.AlterField(
             model_name='agenttype',
             name='parent',
-            field=models.ForeignKey(related_name='sub_agents', blank=True, editable=False, to='valueaccounting.AgentType', null=True, verbose_name='parent'),
+            field=models.ForeignKey(related_name='sub_agents', blank=True, editable=False, to='valueaccounting.AgentType', null=True, verbose_name='parent', on_delete=models.SET_NULL),
             preserve_default=True,
         ),
     ]

valuenetwork/valueaccounting/migrations/0005_auto_20161125_1138.py

@@ -14,16 +14,16 @@ class Migration(migrations.Migration):
         migrations.AddField(
             model_name='economicresourcetype',
             name='context_agent',
-            field=models.ForeignKey(related_name='context_resource_types', verbose_name='context agent', blank=True, to='valueaccounting.EconomicAgent', null=True),
+            field=models.ForeignKey(related_name='context_resource_types', verbose_name='context agent', blank=True, to='valueaccounting.EconomicAgent', null=True, on_delete=models.SET_NULL),
         ),
         migrations.AddField(
             model_name='exchangetype',
             name='context_agent',
-            field=models.ForeignKey(related_name='exchange_types', verbose_name='context agent', blank=True, to='valueaccounting.EconomicAgent', null=True),
+            field=models.ForeignKey(related_name='exchange_types', verbose_name='context agent', blank=True, to='valueaccounting.EconomicAgent', null=True, on_delete=models.SET_NULL),
         ),
         migrations.AddField(
             model_name='processpattern',
             name='context_agent',
-            field=models.ForeignKey(related_name='process_patterns', verbose_name='context agent', blank=True, to='valueaccounting.EconomicAgent', null=True),
+            field=models.ForeignKey(related_name='process_patterns', verbose_name='context agent', blank=True, to='valueaccounting.EconomicAgent', null=True, on_delete=models.SET_NULL),
         ),
     ]