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使用 Validation

要使用验证,请使用class-validator。 示例如何在 TypeORM 中使用 class-validator:

import { Entity, PrimaryGeneratedColumn, Column } from "typeorm";
import { Contains, IsInt, Length, IsEmail, IsFQDN, IsDate, Min, Max } from "class-validator";
@Entity()
export class Post {
@PrimaryGeneratedColumn()
id: number;
@Column()
@Length(10, 20)
title: string;
@Column()
@Contains("hello")
text: string;
@Column()
@IsInt()
@Min(0)
@Max(10)
rating: number;
@Column()
@IsEmail()
email: string;
@Column()
@IsFQDN()
site: string;
@Column()
@IsDate()
createDate: Date;
}

验证:

import { getManager } from "typeorm";
import { validate } from "class-validator";
let post = new Post();
post.title = "Hello"; // 不应该通过
post.text = "this is a great post about hell world"; //不应该通过
post.rating = 11; //不应该通过
post.email = "google.com"; //不应该通过
post.site = "googlecom"; //不应该通过
const errors = await validate(post);
if (errors.length > 0) {
throw new Error(`Validation failed!`);
} else {
await getManager().save(post);
}