Using plain properties (not columns) in entity classes

Hello, my issue would be the same as https://github.com/typeorm/typeorm/issues/3569

@Entity()
export class User extends Base{

    @Column('varchar', { length: 255, unique: true })
    @IsEmail({}, { message: "Invalid email." })
    @IsUnique()
    email: string;

    @Column('varchar', { length: 255 })
    @MinLength(6, { message: "Password must have at least 6 characters" })
    password: string;

    @Column('varchar', { length: 255 })
    salt: string;

    @Column('varchar', { length: 255 })
    role: string;

    password_changed: number = 0;

    @BeforeUpdate()
    setDataBeforeUpdate(){
        if (this.password_changed){
            this.password = PasswordHelper.hashString(this.password, this.salt);
        }
    }
}

Let’s take the above piece of code… i want the password_changed field to not be a column…just a plain old property for this class. The problem is that on update

const repo: Repository<User> = getRepository(User);
await repo.update(row.id, row).then().catch( (e) => { throw e; });

i get this error

EntityColumnNotFound: No entity column "password_changed" was found.
    at new EntityColumnNotFound (.../src/error/EntityColumnNotFound.ts:8:9)
    at .../src/query-builder/UpdateQueryBuilder.ts:403:27
    at Array.forEach (<anonymous>)
    at UpdateQueryBuilder.createUpdateExpression (.../src/query-builder/UpdateQueryBuilder.ts:398:68)
    at UpdateQueryBuilder.getQuery (.../src/query-builder/UpdateQueryBuilder.ts:50:24)

Thanks.

[cstapetrei]

hey @cstapetrei, i have the same problem as yours, i fixed it by deleting the property before an update. In your case

const repo: Repository<User> = getRepository(User);
delete row. password_changed;
await repo.update(row.id, row).then().catch( (e) => { throw e; });

Hehe…nice hack 😄

I’ll give it a go…buuuut it would be nicer to be fixed … even with a @NotColumn() decorator or smth like that 😄

[pauloprado]

Any updates? Deleting the field is a nice hack, but it may affect the code once the property will no longer exists in the object.

The idea @cstapetrei of @NotCollumn() decorator seems pretty good