'Typeorm using class-transformer to change value in table

I'm using Nest.js with Typeorm and library class-transformer:

import { Transform } from 'class-transformer';

@PrimaryGeneratedColumn()
@Transform(
    ({ value }) => `${value}/${moment().format('MM-YYYY')}`,
)
invoiceNumber: string;

I'm trying to generate somethink like this: 1/01-2022. But still I have only an number e.g 1 (without date).

How I can add date to incremented value?



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