Initial commit: sync from server - all domains and code

www/fahrschultermin.de/database/migrations/013_combo_generic_key_cleanup.sql

@@ -0,0 +1,42 @@
+UPDATE appointment_units
+SET requirement_key = COALESCE(
+    (
+        SELECT r.requirement_key
+        FROM appointments a
+        JOIN students s ON s.id = a.student_id
+        JOIN license_class_templates t ON t.id = s.template_id
+        JOIN license_template_requirements r ON r.template_id = t.id
+        WHERE a.id = appointment_units.appointment_id
+          AND t.is_combination = 1
+          AND COALESCE(r.phase_label, '') <> ''
+          AND substr(r.requirement_key, instr(r.requirement_key, '::') + 2) = appointment_units.requirement_key
+        ORDER BY r.sort_order
+        LIMIT 1
+    ),
+    requirement_key
+)
+WHERE requirement_key NOT LIKE '%::%'
+  AND appointment_id IN (
+      SELECT a.id
+      FROM appointments a
+      JOIN students s ON s.id = a.student_id
+      JOIN license_class_templates t ON t.id = s.template_id
+      WHERE t.is_combination = 1
+  );
+
+DELETE FROM student_requirement_snapshots
+WHERE requirement_key NOT LIKE '%::%'
+  AND student_id IN (
+      SELECT s.id
+      FROM students s
+      JOIN license_class_templates t ON t.id = s.template_id
+      WHERE t.is_combination = 1
+  )
+  AND EXISTS (
+      SELECT 1
+      FROM students s
+      JOIN license_template_requirements r ON r.template_id = s.template_id
+      WHERE s.id = student_requirement_snapshots.student_id
+        AND COALESCE(r.phase_label, '') <> ''
+        AND substr(r.requirement_key, instr(r.requirement_key, '::') + 2) = student_requirement_snapshots.requirement_key
+  );