feat: make location string optional but enforce either location or location string

src/fellchensammlung/migrations/0047_alter_adoptionnotice_further_information_and_more.py

@@ -0,0 +1,28 @@
+# Generated by Django 5.2.1 on 2025-05-23 16:07
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('fellchensammlung', '0046_alter_importantlocation_location'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='adoptionnotice',
+            name='further_information',
+            field=models.URLField(blank=True, help_text='Verlinke hier die Quelle der Vermittlung (z.B. die Website des Tierheims', null=True, verbose_name='Link zu mehr Informationen'),
+        ),
+        migrations.AlterField(
+            model_name='adoptionnotice',
+            name='name',
+            field=models.CharField(max_length=200, verbose_name='Titel der Vermittlung'),
+        ),
+        migrations.AlterField(
+            model_name='rescueorganization',
+            name='location_string',
+            field=models.CharField(blank=True, max_length=200, null=True, verbose_name='Ort der Organisation'),
+        ),
+    ]