TypeORM生成正确的查询，但不返回任何数据

Question

我正在使用TypeORM查询一个简单的“ Like”实体，其定义如下：

@Entity()
export class Like extends BaseEntity {

    @ManyToOne(type => Post, post => post.likeList)
    post: Post;

    @ManyToOne(type => Contest, contest => contest.likeList)
    contest: Contest; // Denormalization

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

我需要基于where子句选择确定的postId，为实现这一点，我正在使用repository运行以下查询

const test = await this.repository.find({
                where: {
                    user: userId,
                    contest: contestId,
                },
                select: ['post'],
            });

针对我的postgres数据库运行时，生成的SQL语句-SELECT "Like"."postId" FROM "like" "Like" WHERE "Like"."userId" = $1 AND "Like"."contestId" = $2 -- PARAMETERS: [3,1]-产生以下输出：

有趣的是，test的值始终是一个空数组...我缺少什么？

Answer 1

您可以尝试

const test = await this.repository.find({
                where: {
                    user: userId,
                    contest: contestId,
                },
                relations: ['post'],
            });
console.log('result data: test', test);
return test;