fix: 누락된 null 설정 추가

Author: MU-Software

app/event/presentation/migrations/0010_alter_historicalpresentation_slideshow_url_and_more.py

@@ -0,0 +1,22 @@
+# Generated by Django 5.2 on 2025-07-13 12:46
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("presentation", "0009_historicalpresentation_slideshow_url_and_more"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="historicalpresentation",
+            name="slideshow_url",
+            field=models.URLField(blank=True, default="", null=True),
+        ),
+        migrations.AlterField(
+            model_name="presentation",
+            name="slideshow_url",
+            field=models.URLField(blank=True, default="", null=True),
+        ),
+    ]

app/event/presentation/models.py

@@ -79,7 +79,7 @@ class Presentation(BaseAbstractModel):
     summary = models.TextField(blank=True, default="")
     description = MarkdownField(blank=True, default="")
     image = models.ForeignKey(PublicFile, on_delete=models.PROTECT, null=True, blank=True)
-    slideshow_url = models.URLField(blank=True, default="")
+    slideshow_url = models.URLField(null=True, blank=True, default="")
 
     categories = models.ManyToManyField(to="PresentationCategory", through="PresentationCategoryRelation")
     objects: PresentationQuerySet = PresentationQuerySet.as_manager()