英文:
How to get the current model name or use other method at runtime in Prisma ORM
问题
以下是您要求的代码的翻译部分：
在 prisma ORM 版本 `4.9.0` 中已包含新功能 [文档链接](https://www.prisma.io/docs/concepts/components/prisma-client/client-extensions/model)
在更新 `schema.prisma` 如下后，我们如何在运行时获取模型名称并在运行时使用其他方法：
```js
const { PrismaClient, Prisma } = require("@prisma/client");
const db = new PrismaClient().$extends({
client: {
log: (s) => console.log(s),
async useLog() {
// 如何在这里使用 log 函数
},
},
model: {
$allModels: {
log: (s) => console.log(s),
async find(id, option = {}) {
// 如何在运行时获取当前模型名称
// 或者在这里使用其他函数
},
},
},
});
module.exports = { db };
希望这有助于您理解代码的翻译。如果您有任何其他问题，请随时提问。
英文:
New feature has been included In prisma ORM version 4.9.0 Doc Link
After update schema.prisma as follow
generator client {
provider = "prisma-client-js"
previewFeatures = ["clientExtensions"]
}
How do we get model name at runtime and use other method also at runtime
const { PrismaClient, Prisma } = require("@prisma/client");
const db = new PrismaClient().$extends({
client: {
log: (s) => console.log(s),
async useLog() {
// how to use log function
// here
},
},
model: {
$allModels: {
log: (s) => console.log(s),
async find(id, option = {}) {
// how to get current model name in runtime
// or use other function here
},
},
},
});
module.exports = { db };
答案1
得分: 0
这是解决方案：
const { PrismaClient, Prisma } = require("@prisma/client");
const db = new PrismaClient().$extends({
client: {
log: (s) => console.log(s),
async useLog() {
const ctx = Prisma.getExtensionContext(this);
ctx.log("test"); // 在控制台上打印 "test"
},
},
model: {
$allModels: {
log: (s) => console.log(s),
async find(id, option = {}) {
const ctx = Prisma.getExtensionContext(this);
// 这里记录当前运行时模型名称
console.log(ctx.name);
// 在这里我们可以使用 prisma 模型的其他方法
return ctx.findUniqueOrThrow({
where: {
id,
},
...option,
});
},
},
},
});
module.exports = { db };
现在我们可以像下面这样在所有模型中使用 find 方法：
const { db } = require("@app/src/utils/db");
const teacher = await db.teacher.find(teacherId);
const student = await db.student.find(studentId);
英文:
Here is the solution
const { PrismaClient, Prisma } = require("@prisma/client");
const db = new PrismaClient().$extends({
client: {
log: (s) => console.log(s),
async useLog() {
const ctx = Prisma.getExtensionContext(this);
ctx.log("test"); // it will print "test" on console
},
},
model: {
$allModels: {
log: (s) => console.log(s),
async find(id, option = {}) {
const ctx = Prisma.getExtensionContext(this);
// here is log the current runtime model name
console.log(ctx.name);
// here we can use other method of prisma model
return ctx.findUniqueOrThrow({
where: {
id,
},
...option,
});
},
},
},
});
module.exports = { db };
Now we can use find method in all model just like
const { db } = require("@app/src/utils/db");
const teacher = await db.teacher.find(teacherId);
const student = await db.student.find(studentId);
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