Make VM order-able again

uncloud_pay/models.py

@@ -636,6 +636,20 @@ class Order(models.Model):
     def bills(self):
         return Bill.objects.filter(order=self)
 
+    @staticmethod
+    def from_product(product, **kwargs):
+        # FIXME: this is only a workaround.
+        billing_address = BillingAddress.get_preferred_address_for(product.owner)
+        if billing_address == None:
+            raise Exception("Owner does not have a billing address!")
+
+        return Order(description=product.description,
+                one_time_price=product.one_time_price,
+                recurring_price=product.recurring_price,
+                billing_address=billing_address,
+                owner=product.owner,
+                **kwargs)
+
     def __str__(self):
         return "Order {} created at {}, {}->{}, recurring period {}. One time price {}, recurring price {}".format(
             self.uuid, self.creation_date,

uncloud_vm/migrations/0014_vmwithosproduct_primary_disk.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.0.6 on 2020-05-08 14:01
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('uncloud_vm', '0013_remove_vmproduct_primary_disk'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='vmwithosproduct',
+            name='primary_disk',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, to='uncloud_vm.VMDiskProduct'),
+        ),
+    ]

uncloud_vm/models.py

@@ -69,7 +69,7 @@ class VMProduct(Product):
     cores = models.IntegerField()
     ram_in_gb = models.FloatField()
 
-
+    # Default recurring price is PER_MONTH, see uncloud_pay.models.Product.
     @property
     def recurring_price(self):
         return self.cores * 3 + self.ram_in_gb * 4
@@ -99,7 +99,7 @@ class VMProduct(Product):
 
 
 class VMWithOSProduct(VMProduct):
-    pass
+    primary_disk = models.ForeignKey('VMDiskProduct', on_delete=models.CASCADE, null=True)
 
 
 class VMDiskImageProduct(UncloudModel):

uncloud_vm/serializers.py

@@ -2,7 +2,7 @@ from django.contrib.auth import get_user_model
 
 from rest_framework import serializers
 
-from .models import VMHost, VMProduct, VMSnapshotProduct, VMDiskProduct, VMDiskImageProduct, VMCluster
+from .models import *
 from uncloud_pay.models import RecurringPeriod, BillingAddress
 
 # XXX: does not seem to be used?
@@ -86,40 +86,33 @@ class ManagedVMProductSerializer(serializers.ModelSerializer):
     """
     primary_disk = CreateManagedVMDiskProductSerializer()
     class Meta:
-        model = VMProduct
+        model = VMWithOSProduct
         fields = [ 'cores', 'ram_in_gb', 'primary_disk']
 
-class VMProductSerializer(serializers.HyperlinkedModelSerializer):
+class VMProductSerializer(serializers.ModelSerializer):
     primary_disk = CreateVMDiskProductSerializer()
     snapshots = VMSnapshotProductSerializer(many=True, read_only=True)
     disks = VMDiskProductSerializer(many=True, read_only=True)
 
     class Meta:
-        model = VMProduct
+        model = VMWithOSProduct
         fields = ['uuid', 'order', 'owner', 'status', 'name', 'cores',
                 'ram_in_gb', 'primary_disk', 'snapshots', 'disks', 'extra_data']
         read_only_fields = ['uuid', 'order', 'owner', 'status']
 
 class OrderVMProductSerializer(VMProductSerializer):
     recurring_period = serializers.ChoiceField(
-            choices=VMProduct.allowed_recurring_periods())
+            choices=VMWithOSProduct.allowed_recurring_periods())
 
     def __init__(self, *args, **kwargs):
         super(VMProductSerializer, self).__init__(*args, **kwargs)
-        self.fields['billing_address'] = serializers.ChoiceField(
-                choices=BillingAddress.get_addresses_for(
-                    self.context['request'].user)
-                )
 
     class Meta:
         model = VMProductSerializer.Meta.model
-        fields = VMProductSerializer.Meta.fields + [
+        fields = VMProductSerializer.Meta.fields + [ 'recurring_period' ]
-                'recurring_period', 'billing_address'
-                ]
         read_only_fields = VMProductSerializer.Meta.read_only_fields
 
 # Nico's playground.
-
 class NicoVMProductSerializer(serializers.ModelSerializer):
     snapshots = VMSnapshotProductSerializer(many=True, read_only=True)
     order = serializers.StringRelatedField()
@@ -134,7 +127,6 @@ class NicoVMProductSerializer(serializers.ModelSerializer):
                                       'ram_in_gb'
         ]
 
-
 class DCLVMProductSerializer(serializers.HyperlinkedModelSerializer):
     """
     Create an interface similar to standard DCL

uncloud_vm/views.py

@@ -10,7 +10,7 @@ from rest_framework.response import Response
 from rest_framework.exceptions import ValidationError
 
 from .models import VMHost, VMProduct, VMSnapshotProduct, VMDiskProduct, VMDiskImageProduct, VMCluster
-from uncloud_pay.models import Order
+from uncloud_pay.models import Order, BillingAddress
 
 from .serializers import *
 from uncloud_pay.helpers import ProductViewSet
@@ -136,9 +136,9 @@ class VMProductViewSet(ProductViewSet):
 
     def get_queryset(self):
         if self.request.user.is_superuser:
-            obj = VMProduct.objects.all()
+            obj = VMWithOSProduct.objects.all()
         else:
-            obj = VMProduct.objects.filter(owner=self.request.user)
+            obj = VMWithOSProduct.objects.filter(owner=self.request.user)
 
         return obj
 
@@ -156,29 +156,39 @@ class VMProductViewSet(ProductViewSet):
         serializer = self.get_serializer(data=request.data)
         serializer.is_valid(raise_exception=True)
         order_recurring_period = serializer.validated_data.pop("recurring_period")
-        order_billing_address = serializer.validated_data.pop("billing_address")
-
-        # Create base order.
-        order = Order(
-                recurring_period=order_recurring_period,
-                billing_address=order_billing_address,
-                owner=request.user,
-                starting_date=timezone.now()
-                )
-        order.save()
 
         # Create disk image.
-        disk = VMDiskProduct(owner=request.user, order=order,
+        disk = VMDiskProduct(owner=request.user,
                 **serializer.validated_data.pop("primary_disk"))
+        vm = VMWithOSProduct(owner=request.user, primary_disk=disk,
+                **serializer.validated_data)
+        disk.vm = vm # XXX: Is this really needed?
 
-        # Create VM.
+        # Create VM and Disk orders.
-        vm = serializer.save(owner=request.user, order=order, primary_disk=disk)
+        vm_order = Order.from_product(
-        disk.vm = vm
+                vm,
+                recurring_period=order_recurring_period,
+                starting_date=timezone.now()
+                )
+
+        disk_order = Order.from_product(
+                disk,
+                recurring_period=order_recurring_period,
+                starting_date=timezone.now()
+                )
+
+
+        # Commit to DB.
+        vm.order = vm_order
+        vm.save()
+        vm_order.save()
+
+        disk.order = disk_order
+        disk_order.save()
         disk.save()
 
         return Response(VMProductSerializer(vm, context={'request': request}).data)
 
-
 class NicoVMProductViewSet(ProductViewSet):
     permission_classes = [permissions.IsAuthenticated]
     serializer_class = NicoVMProductSerializer
@@ -194,6 +204,7 @@ class NicoVMProductViewSet(ProductViewSet):
 
         return Response(serializer.data)
 
+
 ###
 # Admin stuff.