Link trading times to strategies

core/migrations/0031_strategy_trading_times.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.1.3 on 2022-11-25 18:03
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0030_remove_tradingtime_end_ts_and_more'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='strategy',
+            name='trading_times',
+            field=models.ManyToManyField(blank=True, to='core.tradingtime'),
+        ),
+    ]