Routers should once again work with NewCourse requests.

application/models/rows/ApprovalActionCollegeRouter.php

@@ -20,7 +20,13 @@ class ApprovalActionCollegeRouter extends ApprovalAction
     {
         $newCourse = $request->getCourseGeneration();
         $currentCourse = $newCourse->getParentGeneration(true);
-        $parentChain->advance($request, $currentCourse->getHomeCollege()->name);
+        if ($currentCourse instanceof CourseGeneration) {
+            $course = $currentCourse;
+        } else {
+            $course = $newCourse;
+        }
+
+        $parentChain->advance($request, $course->getHomeCollege()->name);
     }
 
     public function updateFromForm($formData)

application/models/rows/ApprovalActionDepartmentRouter.php

@@ -20,7 +20,13 @@ class ApprovalActionDepartmentRouter extends ApprovalAction
     {
         $newCourse = $request->getCourseGeneration();
         $currentCourse = $newCourse->getParentGeneration(true);
-        $parentChain->advance($request, $currentCourse->getHomeDepartment()->name);
+        if ($currentCourse instanceof CourseGeneration) {
+            $course = $currentCourse;
+        } else {
+            $course = $newCourse;
+        }
+
+        $parentChain->advance($request, $course->getHomeDepartment()->name);
     }
 
     public function updateFromForm($formData)

application/models/rows/ApprovalActionSubjectRouter.php

@@ -20,7 +20,13 @@ class ApprovalActionSubjectRouter extends ApprovalAction
     {
         $newCourse = $request->getCourseGeneration();
         $currentCourse = $newCourse->getParentGeneration(true);
-        $parentChain->advance($request, $currentCourse->subject);
+        if ($currentCourse instanceof CourseGeneration) {
+            $course = $currentCourse;
+        } else {
+            $course = $newCourse;
+        }
+
+        $parentChain->advance($request, $course->subject);
     }
 
     public function updateFromForm($formData)