Fix Postgres error

debug_events.py

@@ -0,0 +1,49 @@
+#!/usr/bin/env python
+"""
+Location2025とイベントの関係を調査するスクリプト
+"""
+
+from rog.models import Location2025, NewEvent2
+from django.db import connection
+
+def main():
+    print('=== Location2025とイベントの関係調査 ===')
+
+    # Location2025のeventフィールドの外部キー先を確認
+    event_field = Location2025._meta.get_field('event')
+    print(f'Location2025.event field references: {event_field.related_model}')
+
+    # 現在のLocation2025データのイベント分布
+    print('\n=== Location2025のイベント分布 ===')
+    cursor = connection.cursor()
+    cursor.execute("""
+        SELECT l.event_id, ne.event_name, COUNT(*) as count
+        FROM rog_location2025 l
+        LEFT JOIN rog_newevent2 ne ON l.event_id = ne.id
+        GROUP BY l.event_id, ne.event_name
+        ORDER BY count DESC
+    """)
+
+    for row in cursor.fetchall():
+        event_id, event_name, count = row
+        print(f'  Event ID {event_id}: {event_name} ({count}件)')
+
+    # NewEvent2の一覧
+    print('\n=== NewEvent2テーブルの全イベント ===')
+    for event in NewEvent2.objects.all()[:10]:
+        print(f'  ID {event.id}: {event.event_name} (status: {event.status})')
+
+    # CSVアップロード画面のイベント選択肢を確認
+    print('\n=== CSVアップロード画面のイベント選択肢 ===')
+    events = NewEvent2.objects.filter(status='public').order_by('-start_datetime')
+    for event in events[:5]:
+        print(f'  ID {event.id}: {event.event_name} (status: {event.status}, start: {event.start_datetime})')
+
+    # 実際のLocation2025サンプルデータ
+    print('\n=== Location2025サンプルデータ ===')
+    sample_locations = Location2025.objects.all()[:3]
+    for loc in sample_locations:
+        print(f'  CP{loc.cp_number}: {loc.cp_name} -> Event ID {loc.event_id} ({loc.event.event_name if loc.event else "None"})')
+
+if __name__ == '__main__':
+    main()