85 lines
2.9 KiB
TypeScript
85 lines
2.9 KiB
TypeScript
import { defineEventHandler, readBody } from 'h3'
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import { db } from '~/drizzle/db'
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import { gradeClass } from '~/drizzle/schema'
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import { createApiError } from '~~/server/utils/apiError'
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import { SERVER_ERROR_CODES } from '~~/server/config/constants'
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const MAX_BATCH_SIZE = 500
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export default defineEventHandler(async (event) => {
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// 检查认证和权限
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const user = event.context.user
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if (!user || !['ADMIN', 'SUPER_ADMIN'].includes(user.role)) {
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throw createApiError(403, SERVER_ERROR_CODES.COMMON_INSUFFICIENT_PERMISSION, '没有权限访问')
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}
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const body = await readBody(event)
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// 批量模式：items 数组，已存在的组合跳过，返回新增/跳过数量
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if (Array.isArray(body?.items)) {
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if (body.items.length > MAX_BATCH_SIZE) {
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throw createApiError(400, SERVER_ERROR_CODES.COMMON_INVALID_PARAMS, `单次批量最多 ${MAX_BATCH_SIZE} 项`)
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}
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const pairs = body.items
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.map((item) => ({
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grade: typeof item?.grade === 'string' ? item.grade.trim() : '',
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class: typeof item?.class === 'string' ? item.class.trim() : ''
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}))
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.filter((item) => item.grade && item.class)
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const seen = new Set<string>()
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const uniquePairs = pairs.filter((item) => {
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const key = `${item.grade}\u0000${item.class}`
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if (seen.has(key)) return false
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seen.add(key)
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return true
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})
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if (uniquePairs.length === 0) {
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throw createApiError(400, SERVER_ERROR_CODES.COMMON_INVALID_PARAMS, '年级和班级不能为空')
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}
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const existingRows = await db
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.select({ grade: gradeClass.grade, class: gradeClass.class })
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.from(gradeClass)
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const existingKeys = new Set(existingRows.map((row) => `${row.grade}\u0000${row.class}`))
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const toInsert = uniquePairs.filter((item) => !existingKeys.has(`${item.grade}\u0000${item.class}`))
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const skipped = uniquePairs.length - toInsert.length
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if (toInsert.length > 0) {
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// onConflictDoNothing 兜底并发下的唯一约束冲突（预查已跳过存量，此处防竞态）
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await db.insert(gradeClass).values(toInsert).onConflictDoNothing()
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}
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return {
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success: true,
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added: toInsert.length,
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skipped
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}
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}
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// 单条模式（插入用 onConflictDoNothing 兜底并发唯一冲突，冲突返回 409）
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const grade = typeof body.grade === 'string' ? body.grade.trim() : ''
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const studentClass = typeof body.class === 'string' ? body.class.trim() : ''
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if (!grade || !studentClass) {
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throw createApiError(400, SERVER_ERROR_CODES.COMMON_INVALID_PARAMS, '年级和班级不能为空')
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}
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const inserted = (await db
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.insert(gradeClass)
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.values({ grade, class: studentClass })
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.onConflictDoNothing()
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.returning({ id: gradeClass.id, grade: gradeClass.grade, class: gradeClass.class }))[0]
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if (!inserted) {
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throw createApiError(409, SERVER_ERROR_CODES.GRADE_CLASS_DUPLICATE, '该年级班级组合已存在')
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}
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return {
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success: true,
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item: inserted
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}
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}) |