Typescript 如何插入此关系的跟随者

我有这个不动产

@ManyToMany(() => User, user => user.following)
@JoinTable()
followers: User[]

@ManyToMany(() => User, user => user.followers)
following: User[]

如何在此关系中插入新的跟随者？

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我是typeorm和sql数据库的新手

您可以通过启用级联来实现这一点：

@ManyToMany(() => User, user => user.following, {cascadeInsert: true, cascadeUpdate: true})
@JoinTable()
followers: User[]

@ManyToMany(() => User, user => user.followers, {cascadeInsert: true, cascadeUpdate: true})
following: User[]

如果不想使用cascadeInsert和cascadeUpdate，则必须手动保存相关实体：

const follower1 = new Follower({...});
await connection.manager.save(follower1);

const follower2 = new Follower({...});
await connection.manager.save(follower2);

const entity = new Entity();
entity.followers = [follower1, follower2];
await connection.manager.save(entity);

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有关详细信息，请参见TypeORM文档：）

您可以通过启用级联来实现这一点：

@ManyToMany(() => User, user => user.following, {cascadeInsert: true, cascadeUpdate: true})
@JoinTable()
followers: User[]

@ManyToMany(() => User, user => user.followers, {cascadeInsert: true, cascadeUpdate: true})
following: User[]

如果不想使用cascadeInsert和cascadeUpdate，则必须手动保存相关实体：

const follower1 = new Follower({...});
await connection.manager.save(follower1);

const follower2 = new Follower({...});
await connection.manager.save(follower2);

const entity = new Entity();
entity.followers = [follower1, follower2];
await connection.manager.save(entity);

有关详细信息，请参见TypeForm文档：）