empty attributes on ts models with target equal or above ES2022

[Chen Yangjian]

class Template extends Bone {
  @Column()
  id: number;

  @Column()
  createdAt: Date;
}

the model above might be instantiated like an empty object when compiled with tsconfig that has target set to ES2022 or above:

Collection (30) [
  Template {}, ...
]

this is because public class fields will be initialized with [[Define]] rather than [[Set]] when the target is ES2022 or above. ts projects with this config will have to change the https://www.typescriptlang.org/tsconfig#useDefineForClassFields property to false.

• https://www.typescriptlang.org/docs/handbook/release-notes/typescript-3-7.html#the-usedefineforclassfields-flag-and-the-declare-property-modifier
• microsoft/TypeScript#48814

[JimmyDaddy]

Or use declare to define a column

class Base extends Bone {
  @Column()
  declare id: bigint;
}

class Note extends Base {
  @Column()
  declare body: string;
}