Multiple OneToOne relation with TypeOrm doesn't work - sql

Question

I currently using NestJS 8.4.7 and TypeORM 0.3.10
I want to make two (or more) OneToOne relations in my entity class based on an existing SQL Database
Here is my code :
// Article Entity
#Entity({ name: 'node' })
export class Article {
#PrimaryGeneratedColumn('increment')
public articleId: number
#OneToOne(() => ArticleBody)
#JoinColumn({ name: 'articleId', referencedColumnName: 'bodyId' })
public body: ArticleBody
#OneToOne(() => ArticleTitle)
#JoinColumn({ name: 'articleId', referencedColumnName: 'titleId' })
public title: ArticleTitle
}
// Body Entity
#Entity({ name: 'article_body' })
export class ArticleBody {
#PrimaryGeneratedColumn()
public bodyId: number
#Column({ nullable: false })
public bodyValue: string
}
// Title Entity
#Entity({ name: 'article_title' })
export class ArticleTitle {
#PrimaryGeneratedColumn()
public titleId: number
#Column({ nullable: false })
public titleValue: string
}
And I have this error:
sqlMessage: ERROR [ExceptionsHandler] Unknown column 'Article__Article_body.titleId' in 'on clause'
sql: SELECT
`Article`.`articleId` AS `Article_nid`,
`Article__Article_body`.`bodyValue` AS `Article__Article_body_bodyValue`,
`Article__Article_title`.`titleValue` AS `Article__Article_title_titleValue`
FROM `Article` `Article`
LEFT JOIN `article_body` `Article__Article_body` ON Article__Article_body.titleId=`Article`.`articleId`
LEFT JOIN `article_title` `Article__Article_title` ON `Article__Article_title`.`titleId`=`Article`.`articleId`
WHERE (`Article`.`articleId` = 1)
It looks like if the last JoincolumnOptions overwrites all previous JoincolumnOptions

Answer 1

// Article Entity
#Entity({ name: 'node' })
export class Article {
#PrimaryGeneratedColumn('increment')
public articleId: number;
#OneToOne(() => ArticleBody)
#JoinColumn({ name: 'articleBodyId' })
public body: ArticleBody;
#OneToOne(() => ArticleTitle)
#JoinColumn({ name: 'articleTitleId' })
public title: ArticleTitle;
}
// Body Entity
#Entity({ name: 'article_body' })
export class ArticleBody {
#PrimaryGeneratedColumn("increment")
public bodyId: number;
#Column({ name: 'body_value', nullable: false })
public bodyValue: string;
}
// Title Entity
#Entity({ name: 'article_title' })
export class ArticleTitle {
#PrimaryGeneratedColumn("increment")
public titleId: number;
#Column({ name: 'title_value', nullable: false })
public titleValue: string;
}
In Article Entity your joinColumn name is same that's why the error is giving