forked from bai/curriculum-project-hub
feat(database): 后台成员组(MemberGroup)管理与嵌套解析
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/**
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* 默认 GroupResolver 实现:读 in-hub MemberGroup 闭包(ADR-0028)。
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*
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* resolveMemberGroupIds(user) = 用户**活跃直接组 ∪ 这些组的活跃祖先**,去重
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* (闭包 depth0 自身行令每个直接组也是自己的祖先)。等价于:授权放在组 G 上,
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* G 及其全部子孙的成员都命中(需求 3.2 权限沿树向下 → 解析沿树向上收集)。
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*
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* 实时、不缓存(契约 D4/G4):成员变更在下一次受保护请求即可见。
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* MemberGroup 全局(无 organizationId),解析不做 org scope。
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* 两条 Prisma 查询,不用裸 SQL(与 treeService 风格一致)。
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*/
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import type { PrismaClient } from "@prisma/client";
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import type { GroupResolver } from "./groupResolver.js";
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export function createMemberGroupResolver(prisma: PrismaClient): GroupResolver {
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return {
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async resolveMemberGroupIds(userId) {
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// 1) 活跃直接组:成员未撤销 + 组未归档。
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const direct = await prisma.memberGroupMembership.findMany({
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where: { userId, revokedAt: null, group: { archivedAt: null } },
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select: { groupId: true },
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});
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if (direct.length === 0) return [];
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const directIds = direct.map((m) => m.groupId);
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// 2) 经闭包取活跃祖先(含 depth0 自身);祖先组须未归档。
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const ancestors = await prisma.memberGroupClosure.findMany({
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where: { descendantId: { in: directIds }, ancestor: { archivedAt: null } },
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select: { ancestorId: true },
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});
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return [...new Set(ancestors.map((a) => a.ancestorId))];
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},
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};
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}
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