add key persons + key sites to case study

backend/case_study/admin.py

@@ -5,8 +5,8 @@
 @admin.register(models.CaseStudy)
 class CaseStudyAdmin(admin.ModelAdmin):
     list_display = ["name", "description"]
-    fields = ["name", "description", "episodes"]
-    filter_horizontal = ["episodes"]
+    fields = ["name", "description", "episodes", "key_persons", "key_sites"]
+    filter_horizontal = ["episodes", "key_persons", "key_sites"]
 
 
 @admin.register(models.Episode)

backend/case_study/migrations/0003_casestudy_key_persons_casestudy_key_sites.py

@@ -0,0 +1,25 @@
+# Generated by Django 4.2.7 on 2024-04-15 12:31
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('person', '0014_alter_persondateofbirth_person_and_more'),
+        ('space', '0008_alter_spacedescription_source'),
+        ('case_study', '0002_casestudy_description_alter_casestudy_name_episode_and_more'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='casestudy',
+            name='key_persons',
+            field=models.ManyToManyField(blank=True, help_text='Key historical figures involved in this case study', to='person.historicalperson'),
+        ),
+        migrations.AddField(
+            model_name='casestudy',
+            name='key_sites',
+            field=models.ManyToManyField(blank=True, help_text='Key historical sites involved in this case study', to='space.structure'),
+        ),
+    ]

backend/case_study/models.py

@@ -1,7 +1,8 @@
 from django.db import models
 from core.models import Named
 from event.models import EventDescription
-
+from person.models import HistoricalPerson
+from space.models import Structure
 
 class CaseStudy(Named, models.Model):
     """
@@ -18,6 +19,18 @@ class Meta:
         help_text="Episodes involved in this case study",
     )
 
+    key_persons = models.ManyToManyField(
+        to=HistoricalPerson,
+        blank=True,
+        help_text="Key historical figures involved in this case study",
+    )
+
+    key_sites = models.ManyToManyField(
+        to=Structure,
+        blank=True,
+        help_text="Key historical sites involved in this case study",
+    )
+
     def __str__(self):
         return self.name