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nestjstypeorm

how can I change entity type in nestjs with typeorm

I'm using typeorm and nestjs on my project.

I have a project with multiple actions in one service.

let aorB: A | B;

if(checkpoint === 'A') { 
    //A point
    aorB = await this.Arepository.findOne();
}else{
    //B point
    aorB = await this.Brepository.findOne();
}

const ab = aorB.onlyAColumn; //error

I used the code above, aorB would not be changed to type A in A Point.

I want the type to change at each point.

How can I do this?

Solution

  • You can simply use (aorB as A).onlyAColumn. Or probably these answer might help you TypeScript type cast