.

anatomy/migrations/0022_auto_20210121_1806.py

@@ -0,0 +1,20 @@
+# Generated by Django 3.1.3 on 2021-01-21 18:06
+
+import anatomy.models
+import django.core.files.storage
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('anatomy', '0021_auto_20210120_2206'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='anatomyquestion',
+            name='image',
+            field=models.ImageField(storage=django.core.files.storage.FileSystemStorage(base_url='/media/anatomy/', location='/home/ross/scripts/sites/rad/media//anatomy/'), upload_to=anatomy.models.image_directory_path),
+        ),
+    ]

rapids/admin.py

@@ -55,7 +55,7 @@ class RapidAdmin(VersionAdmin):
     filter_horizontal = (
         "abnormality",
         "region",
-        "examination",
+        #"examination",
     )
     save_on_top = True
     save_as = True

rapids/migrations/0005_auto_20210121_1806.py

@@ -0,0 +1,30 @@
+# Generated by Django 3.1.3 on 2021-01-21 18:06
+
+import django.core.files.storage
+from django.db import migrations, models
+import django.db.models.deletion
+import rapids.models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('rapids', '0004_auto_20210120_2214'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='rapid',
+            name='examination',
+        ),
+        migrations.AddField(
+            model_name='rapid',
+            name='examination',
+            field=models.ForeignKey(help_text='Name of the (primary) examination', null=True, on_delete=django.db.models.deletion.SET_NULL, to='rapids.examination'),
+        ),
+        migrations.AlterField(
+            model_name='rapidimage',
+            name='image',
+            field=models.ImageField(storage=django.core.files.storage.FileSystemStorage(base_url='/media/rapids/', location='/home/ross/scripts/sites/rad/media//rapids/'), upload_to=rapids.models.image_directory_path),
+        ),
+    ]

rapids/models.py

@@ -142,8 +142,8 @@ class Rapid(models.Model):
         Region,
         blank=True,
         help_text="Region of the abnormality (laterality independent)")
-    examination = models.ManyToManyField(
+    examination = models.ForeignKey(
-        Examination, help_text="Name of the (primary) examination")
+        Examination, help_text="Name of the (primary) examination", on_delete=models.SET_NULL, null=True)
     laterality = models.CharField(
         max_length=20,
         choices=LATERALITY_CHOICES,