Update a column in database in NodeJs

问题

I want to update a column which has a relation:

async update(req, res): Promise<any> {
        const {email, password, id} = req.body;
        try {
            await getConnection()
                .createQueryBuilder()
                .update(User)
                .set({
                    email: email,
                    password: password,
                    meta: [{   
                        name: "tesst",
                        message: "jasshd"
                    }]
                })
                .where("id = :id", {id: id})
                .execute();

            res.status(201).send({
                message: 'user updated'
            })

        } catch (e) {
            console.log('update', e)
            res.send({
                message: 'update error'
            })
        }
    }

Meta table is in relation with User table. Trying to update the user with the attached meta i get: EntityColumnNotFound: No entity column "meta" was found.. Why i get this error? Note: If i use this relation when i register the user like:

const user = this.usersRepository.create({
  email,
  password,
  meta: [{
    name: "tesst",
    message: "jasshd"
  }]
});
return await this.usersRepository.save(user);

... the code work. Why the code works when i register the user but not when i update it?

@Entity()
export class User {
    @PrimaryGeneratedColumn()
    id: number;

    @Column({nullable: true})
    email: string;

    @Column({nullable: true})
    password: string;


    @OneToMany(() => Meta, meta => meta.user, { cascade: true })
    meta: Meta[];
}


export class Meta {
    @PrimaryGeneratedColumn({name: metaId})
    metaId: number;

    @Column({nullable: true})
    name: string;

    @Column({nullable: true})
    message: string;

    @ManyToOne(() => User, user => user.meta)
    user: User;
}

回答1:

I don't think you can update the relation data with querybuilder, the solution I see here is to update meta with itself :

async update(req, res): Promise<any> {
    const {email, password, id} = req.body;
    try {
        await getConnection()
            .createQueryBuilder()
            .update(User)
            .set({
                email: email,
                password: password,
                meta: [{   
                    name: "tesst",
                    message: "jasshd"
                }]
            })
            .where("id = :id", {id: id})
            .execute();
  // Update meta :
    await getConnection()
            .createQueryBuilder()
            .update(Meta)
            .set({ 
                    name: "tesst",
                    message: "jasshd"
            })
            .where("user = :id", {id: id})
            .execute();
        res.status(201).send({
            message: 'user updated'
        })

    } catch (e) {
        console.log('update', e)
        res.send({
            message: 'update error'
        })
    }
}

Ps: this operation will update all the data of meta that has user = :id

来源：https://stackoverflow.com/questions/65907844/update-a-column-in-database-in-nodejs