Add teachers field to documentation

aleksis/apps/alsijil/migrations/0022_documentation_teachers.py

+# Generated by Django 4.2.9 on 2024-03-16 00:59
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("core", "0061_remove_group_additional_fields"),
+        ("alsijil", "0021_participationstatus"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="documentation",
+            name="teachers",
+            field=models.ManyToManyField(
+                blank=True,
+                null=True,
+                related_name="documentations_as_teacher",
+                to="core.person",
+                verbose_name="Teachers",
+            ),
+        ),
+    ]

aleksis/apps/alsijil/models.py

@@ -474,6 +474,10 @@ class Documentation(CalendarEvent):
         Subject, models.PROTECT, related_name="+", blank=True, null=True, verbose_name=_("Subject")
     )
 
+    teachers = models.ManyToManyField(
+        "core.Person", related_name="documentations_as_teacher", blank=True, null=True, verbose_name=_("Teachers")
+    )
+
     topic = models.CharField(verbose_name=_("Lesson Topic"), max_length=255, blank=True)
     homework = models.CharField(verbose_name=_("Homework"), max_length=255, blank=True)
     group_note = models.CharField(verbose_name=_("Group Note"), max_length=255, blank=True)