create project

backend/prisma/schema.prisma

@@ -0,0 +1,60 @@
+generator client {
+  provider = "prisma-client-js"
+}
+
+datasource db {
+  provider = "postgresql"
+  url      = env("DATABASE_URL")
+}
+
+model User {
+  id              String     @id @default(cuid())
+  phone           String     @unique
+  passwordHash    String
+  nickname        String
+  email           String?
+  familyIds       String[]
+  activeFamilyId  String?
+  joinDate        DateTime   @default(now())
+  createdAt       DateTime   @default(now())
+  bills           Bill[]
+  familiesCreated Family[]   @relation("FamilyCreator")
+}
+
+model Family {
+  id         String         @id @default(cuid())
+  name       String
+  inviteCode String         @unique
+  createdBy  String
+  creator    User           @relation("FamilyCreator", fields: [createdBy], references: [id])
+  createdAt  DateTime       @default(now())
+  members    FamilyMember[]
+  bills      Bill[]
+}
+
+model FamilyMember {
+  id        String   @id @default(cuid())
+  familyId  String
+  family    Family   @relation(fields: [familyId], references: [id], onDelete: Cascade)
+  userId    String
+  nickname  String
+  role      String
+  joinedAt  DateTime @default(now())
+  @@unique([familyId, userId])
+}
+
+model Bill {
+  id        String   @id @default(cuid())
+  userId    String
+  user      User     @relation(fields: [userId], references: [id])
+  familyId  String?
+  family    Family?  @relation(fields: [familyId], references: [id])
+  type      String
+  amount    Float
+  category  String
+  note      String?
+  emoji     String?
+  time      String
+  date      DateTime
+  createdAt DateTime @default(now())
+}

backend/prisma/seed.ts

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+import { PrismaClient } from '@prisma/client';
+import bcrypt from 'bcryptjs';
+
+const prisma = new PrismaClient();
+
+async function main() {
+  const passwordHash = await bcrypt.hash('123456', 10);
+
+  const user = await prisma.user.upsert({
+    where: { phone: '13800138000' },
+    update: {},
+    create: {
+      phone: '13800138000',
+      passwordHash,
+      nickname: '小明',
+      joinDate: new Date('2026-03-01'),
+    },
+  });
+
+  const family = await prisma.family.upsert({
+    where: { id: 'f_preset_home' },
+    update: {},
+    create: {
+      id: 'f_preset_home',
+      name: '小明的家',
+      inviteCode: 'ABCDEF',
+      createdBy: user.id,
+      members: {
+        create: {
+          userId: user.id,
+          nickname: '小明',
+          role: 'owner',
+        },
+      },
+    },
+  });
+
+  await prisma.user.update({
+    where: { id: user.id },
+    data: {
+      familyIds: [family.id],
+      activeFamilyId: family.id,
+    },
+  });
+
+  const sampleBills = [
+    { type: 'expense' as const, amount: 32, category: '餐饮', emoji: '🍜', note: '午餐-兰州拉面', time: '12:30', date: new Date('2026-05-01') },
+    { type: 'expense' as const, amount: 15, category: '交通', emoji: '🚇', note: '地铁通勤', time: '08:45', date: new Date('2026-05-02') },
+    { type: 'expense' as const, amount: 128, category: '购物', emoji: '🛒', note: '超市采购', time: '18:20', date: new Date('2026-05-03') },
+    { type: 'expense' as const, amount: 45, category: '餐饮', emoji: '☕', note: '星巴克咖啡', time: '15:00', date: new Date('2026-05-03') },
+    { type: 'income' as const, amount: 15000, category: '工资', emoji: '💰', note: '5月工资', time: '10:00', date: new Date('2026-05-05') },
+    { type: 'expense' as const, amount: 200, category: '居住', emoji: '🏠', note: '物业费', time: '09:00', date: new Date('2026-05-06') },
+    { type: 'expense' as const, amount: 88, category: '餐饮', emoji: '🍣', note: '和朋友聚餐', time: '19:30', date: new Date('2026-05-07') },
+    { type: 'expense' as const, amount: 56, category: '交通', emoji: '🚕', note: '打车回家', time: '22:15', date: new Date('2026-05-08') },
+  ];
+
+  for (const bill of sampleBills) {
+    await prisma.bill.create({
+      data: {
+        userId: user.id,
+        familyId: family.id,
+        ...bill,
+      },
+    });
+  }
+
+  console.log('✅ 种子数据已创建:');
+  console.log('   预设账号: 13800138000 / 123456');
+  console.log('   家庭: 小明的家');
+  console.log('   账单: 8 条示例');
+}
+
+main()
+  .catch((e) => { console.error(e); process.exit(1); })
+  .finally(() => prisma.$disconnect());