add recent_check field to link

needed to facilitate sorting of links by test results

doab_check/check.py

@@ -118,5 +118,7 @@ def check_link(link):
     check.return_code = code
     check.content_type = ct
     check.save()
+    check.link.recent_check = check
+    check.link.save()
     
     

doab_check/migrations/0003_link_recent_check.py

@@ -0,0 +1,19 @@
+# Generated by Django 4.1.7 on 2023-04-27 18:10
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('doab_check', '0002_alter_check_content_type'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='link',
+            name='recent_check',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='checked_link', to='doab_check.check'),
+        ),
+    ]

doab_check/migrations/0004_auto_20230427_1818.py

@@ -0,0 +1,20 @@
+# Generated by Django 4.1.7 on 2023-04-27 18:18
+
+from django.db import migrations
+
+
+def populate_recent(apps, schema_editor):
+    Check = apps.get_model("doab_check", "Check")
+    for check in Check.objects.order_by('created'):
+        check.link.recent_check = check
+        check.link.save()
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('doab_check', '0003_link_recent_check'),
+    ]
+
+    operations = [
+        migrations.RunPython(populate_recent),
+    ]

doab_check/models.py

@@ -40,6 +40,12 @@ class Link(models.Model):
     # derived from url so we can do sorting, etc.
     provider = models.CharField(max_length=255, default='')
     
+    recent_check = models.ForeignKey("Check", null=True, related_name='checked_link',
+        on_delete=models.SET_NULL)
+    
+    def recent_checks(self):
+        return self.checks.order_by('-created')
+    
     def save(self, *args, **kwargs):
         if self.url:
             netloc = urlparse(self.url).netloc.lower()