Sync UK company and project site address fields on applicable projects

datahub/investment/project/signals.py

@@ -1,3 +1,5 @@
+import reversion
+
 from django.db.models import Q
 from django.db.models.signals import m2m_changed, post_save, pre_save
 from django.dispatch import receiver
@@ -121,3 +123,30 @@ def update_country_investment_originates_from(sender, **kwargs):
             investment_project.save(
                 update_fields=('country_investment_originates_from',),
             )
+
+
+@receiver(
+    post_save,
+    sender=Company,
+    dispatch_uid='update_project_site_address_fields_when_company_address_changes_from_post_save',
+)
+def update_project_site_address_fields_when_company_address_changes(sender, **kwargs):
+    """Updates site address in applicable projects when the company's address changes."""
+    instance = kwargs['instance']
+    created = kwargs['created']
+    if not created:
+        investment_projects = InvestmentProject.objects.filter(
+            uk_company_id=instance.pk,
+            site_address_is_company_address=True,
+        )
+        for investment_project in investment_projects:
+            with reversion.create_revision():
+                investment_project.address_1 = instance.address_1
+                investment_project.address_2 = instance.address_2
+                investment_project.address_town = instance.address_town
+                investment_project.address_postcode = instance.address_postcode
+                investment_project.save(
+                    update_fields=[
+                        'address_1', 'address_2', 'address_town', 'address_postcode',
+                    ],
+                )

datahub/investment/project/test/test_signals.py

@@ -1,12 +1,16 @@
 from unittest.mock import Mock
 
 import pytest
+import reversion
+
+from reversion.models import Version
 
 from datahub.company.test.factories import CompanyFactory
 from datahub.core.constants import (
     Country as CountryConstant,
     InvestmentProjectStage as InvestmentProjectStageConstant,
 )
+# from core.models import Country
 from datahub.core.test_utils import random_obj_for_model
 from datahub.investment.project.test.factories import InvestmentProjectFactory
 from datahub.metadata.models import InvestmentBusinessActivity
@@ -136,3 +140,64 @@ def test_update_investor_company_doesnt_update_country_of_origin_for_won_project
                 str(project.country_investment_originates_from_id)
                 == CountryConstant.japan.value.id
             )
+
+
+@pytest.mark.django_db
+class TestUpdateProjectSiteAddressFieldsWhenCompanyAddressChanges:
+
+    def test_update_project_site_address_fields_when_company_address_changes(self):
+        """Test post save signal updates site address in applicable investment projects."""
+        old_address_fields = {
+            'address_1': 'Old Admiralty Building',
+            'address_2': 'Whitehall',
+            'address_town': 'London',
+            'address_postcode': 'SW1A 2AA',
+        }
+        # setup models
+        with reversion.create_revision():
+            uk_based_company = CompanyFactory(
+                address_country_id=CountryConstant.united_kingdom.value.id,
+                **old_address_fields,
+            )
+            project_to_update = InvestmentProjectFactory(
+                uk_company=uk_based_company,
+                site_address_is_company_address=True,
+                **old_address_fields,
+            )
+            project_to_not_update = InvestmentProjectFactory(
+                uk_company=uk_based_company,
+                site_address_is_company_address=False,
+                **old_address_fields,
+            )
+
+        # initial assertions
+        assert Version.objects.get_for_object(project_to_update).count() == 1
+        assert Version.objects.get_for_object(project_to_not_update).count() == 1
+
+        # update company address
+        new_address_fields = {
+            'address_1': '10 Downing Street',
+            'address_2': 'Whitehall',
+            'address_town': 'Manchester',
+            'address_postcode': 'M1 1AA',
+        }
+        for attribute, value in new_address_fields.items():
+            setattr(uk_based_company, attribute, value)
+        uk_based_company.save()
+
+        # final assertions
+        project_to_update.refresh_from_db()
+        assert project_to_update.site_address_is_company_address is True
+        assert project_to_update.address_1 == new_address_fields['address_1']
+        assert project_to_update.address_2 == new_address_fields['address_2']
+        assert project_to_update.address_town == new_address_fields['address_town']
+        assert project_to_update.address_postcode == new_address_fields['address_postcode']
+        assert Version.objects.get_for_object(project_to_update).count() == 2
+
+        project_to_not_update.refresh_from_db()
+        assert project_to_not_update.site_address_is_company_address is False
+        assert project_to_not_update.address_1 == old_address_fields['address_1']
+        assert project_to_not_update.address_2 == old_address_fields['address_2']
+        assert project_to_not_update.address_town == old_address_fields['address_town']
+        assert project_to_not_update.address_postcode == old_address_fields['address_postcode']
+        assert Version.objects.get_for_object(project_to_not_update).count() == 1