完整性更新

现在已经实现了大部分基础功能

src/app/(dashboard)/teacher/homework/assignments/create/page.tsx

@@ -1,12 +1,13 @@
 import { HomeworkAssignmentForm } from "@/modules/homework/components/homework-assignment-form"
 import { getExams } from "@/modules/exams/data-access"
+import { getTeacherClasses } from "@/modules/classes/data-access"
 import { EmptyState } from "@/shared/components/ui/empty-state"
 import { FileQuestion } from "lucide-react"
 
 export const dynamic = "force-dynamic"
 
 export default async function CreateHomeworkAssignmentPage() {
-  const exams = await getExams({})
+  const [exams, classes] = await Promise.all([getExams({}), getTeacherClasses()])
   const options = exams.map((e) => ({ id: e.id, title: e.title }))
 
   return (
@@ -25,8 +26,15 @@ export default async function CreateHomeworkAssignmentPage() {
           icon={FileQuestion}
           action={{ label: "Create Exam", href: "/teacher/exams/create" }}
         />
+      ) : classes.length === 0 ? (
+        <EmptyState
+          title="No classes available"
+          description="Create a class first, then publish homework to that class."
+          icon={FileQuestion}
+          action={{ label: "Go to Classes", href: "/teacher/classes/my" }}
+        />
       ) : (
-        <HomeworkAssignmentForm exams={options} />
+        <HomeworkAssignmentForm exams={options} classes={classes} />
       )}
     </div>
   )