82 lines
2.3 KiB
Plaintext
82 lines
2.3 KiB
Plaintext
// This is your Prisma schema file,
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// learn more about it in the docs: https://pris.ly/d/prisma-schema
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// Looking for ways to speed up your queries, or scale easily with your serverless or edge functions?
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// Try Prisma Accelerate: https://pris.ly/cli/accelerate-init
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generator client {
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provider = "prisma-client"
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output = "../generated/prisma"
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}
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datasource db {
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provider = "postgresql"
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}
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model Item {
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id Int @id @default(autoincrement())
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name String // 名称（必填）
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source String? // 来源（可选）
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// 数量管理
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quantity Decimal? @db.Decimal(10, 3) // 总数量（如 1.5 kg）
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unit String? // 单位（如 "kg", "个"）
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usedQuantity Decimal? @default(0.0) @map("used_quantity") @db.Decimal(10, 3) // 已使用量
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// 日期
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productionDate DateTime? @map("production_date") // 生产日期
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expiryDate DateTime? @map("expiry_date") // 过期日期
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// 位置（可选）
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location Location? @relation(fields: [locationId], references: [id])
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locationId Int? @map("location_id")
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// 价格（单位：元）
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price Decimal? @db.Decimal(12, 2)
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// 附属信息（JSONB，灵活扩展）
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extraInfo Json? @map("extra_info")
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// 图片
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images Image[] @relation("ItemImage")
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// 时间戳
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createdAt DateTime @default(now()) @map("created_at")
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updatedAt DateTime @updatedAt @map("updated_at")
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// 索引
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@@index([locationId])
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@@map("items")
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}
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model Location {
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id Int @id @default(autoincrement())
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name String // 位置名称（如 "厨房", "工具箱"）
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// 树形结构：自引用
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parent Location? @relation("LocationChildren", fields: [parentId], references: [id])
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parentId Int? @map("parent_id")
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children Location[] @relation("LocationChildren")
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// 关联物品
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items Item[]
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createdAt DateTime @default(now()) @map("created_at")
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@@index([parentId])
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@@map("locations")
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}
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model Image {
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id Int @id @default(autoincrement())
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item Item @relation("ItemImage", fields: [itemId], references: [id])
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itemId Int @map("item_id")
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imageUrl String @map("image_url") // 存储路径，如 "/uploads/item_123_1.jpg"
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sortOrder Int @default(0) @map("sort_order") // 排序
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createdAt DateTime @default(now()) @map("created_at")
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@@index([itemId])
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@@map("item_images")
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}
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