feat: align with upstream 1.5.9.9

server/api/admin/grade-class/initialize.post.ts

@@ -0,0 +1,64 @@
+import { defineEventHandler } from 'h3'
+import { and, eq, isNotNull } from 'drizzle-orm'
+import { db } from '~/drizzle/db'
+import { gradeClass, users } from '~/drizzle/schema'
+import { createApiError } from '~~/server/utils/apiError'
+import { SERVER_ERROR_CODES } from '~~/server/config/constants'
+
+const MAX_BATCH_SIZE = 500
+
+// 从现有用户提取年级班级组合并写入配置（仅 active 用户）
+export default defineEventHandler(async (event) => {
+  // 检查认证和权限
+  const user = event.context.user
+  if (!user || !['ADMIN', 'SUPER_ADMIN'].includes(user.role)) {
+    throw createApiError(403, SERVER_ERROR_CODES.COMMON_INSUFFICIENT_PERMISSION, '没有权限访问')
+  }
+
+  const userCombos = await db
+    .selectDistinct({
+      grade: users.grade,
+      class: users.class
+    })
+    .from(users)
+    .where(and(eq(users.status, 'active'), isNotNull(users.grade), isNotNull(users.class)))
+
+  const pairs = userCombos
+    .map((item) => ({
+      grade: typeof item.grade === 'string' ? item.grade.trim() : '',
+      class: typeof item.class === 'string' ? item.class.trim() : ''
+    }))
+    .filter((item) => item.grade && item.class)
+
+  const seen = new Set<string>()
+  const uniquePairs = pairs.filter((item) => {
+    const key = `${item.grade}\u0000${item.class}`
+    if (seen.has(key)) return false
+    seen.add(key)
+    return true
+  })
+
+  const existingRows = await db
+    .select({ grade: gradeClass.grade, class: gradeClass.class })
+    .from(gradeClass)
+  const existingKeys = new Set(existingRows.map((row) => `${row.grade}\u0000${row.class}`))
+  const toInsert = uniquePairs.filter((item) => !existingKeys.has(`${item.grade}\u0000${item.class}`))
+
+  let added = 0
+  for (let i = 0; i < toInsert.length; i += MAX_BATCH_SIZE) {
+    const batch = toInsert.slice(i, i + MAX_BATCH_SIZE)
+    const inserted = await db
+      .insert(gradeClass)
+      .values(batch)
+      .onConflictDoNothing()
+      .returning({ id: gradeClass.id })
+    added += inserted.length
+  }
+
+  return {
+    success: true,
+    total: uniquePairs.length,
+    added,
+    skipped: uniquePairs.length - added
+  }
+})