Create two distinct classes featuring varied decorator choices

Question

Create two distinct classes featuring varied decorator choices

I need to split a single class definition into two separate classes: one with nullable true, and the other with nullable false. Specifically, I'm trying to create different versions of PlanInput.

const createExample = (nullable) => {

  @InputType()
  class PlanInput {

    @IsNotEmpty({ message: 'Plan name can\'t be empty' })
    @Trim()
    @Field({ nullable })
    name?: string

  }

  return PlanInput
}

export const PlanInput = createExample(true)
export const PlanCreateInput = createExample(false)

Can this separation be achieved using TypeStack or just by utilizing ES6 features?

typescript typeorm typegraphql

Answer 1

Answer №1

To achieve this functionality, simply extend the PlanInput class and set nullability using a private boolean variable.

@InputType()
class PlanInput {
  private nullable = true;
  @IsNotEmpty({ message: 'Plan name can\'t be empty' })
  @Trim()
  @Field({ nullable: this.nullable })
  name?: string
}

class PlanCreateInput extends PlanInput {
  private nullable = false;
}

Answer 2

To achieve this functionality, simply extend the PlanInput class and set nullability using a private boolean variable.

@InputType()
class PlanInput {
  private nullable = true;
  @IsNotEmpty({ message: 'Plan name can\'t be empty' })
  @Trim()
  @Field({ nullable: this.nullable })
  name?: string
}

class PlanCreateInput extends PlanInput {
  private nullable = false;
}

Create two distinct classes featuring varied decorator choices

Answer №1

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