I can't insert related table field

Question

These are my tables:

@Entity('personas')
export class Personas {

    @PrimaryGeneratedColumn()
    @IsNumber()
    id: number;

    @Column({type:"varchar",length:100})
    @IsNotEmpty()
    nombre: string;
    
    @OneToMany(type => Contactos, contactos => contactos.idpersona, {cascade: true})
    contactos : Contactos[] 
    
}

@Entity('contactos')
export class Contactos {

  @PrimaryGeneratedColumn()
  @IsNumber()
  id: number;

  @Column()
  @IsNotEmpty()
  idpersona: number;
  @ManyToOne(type => Personas, {
  })
  @JoinColumn({name: "idpersona"})
  persona: string;

  @Column({type:"varchar",length:100})
  nombre: string;

  @Column({type:"varchar",length:11})
  telefono: string;
   
}

This is the body of the query to add the records:

{
    "nombre":"TestPersona",
    "contactos":[{      
                "nombre":"TestContacto",
                "telefono": "123456789"}
                ]
}

This is the error: [ExceptionsHandler] Field 'idpersona' doesn't have a default value.

It is assumed that the field idPersona in Contacts, should be inserted automatically. What am I doing wrong?. From already thank you very much.

Answer 1

I leave the way I fix it, in case it helps someone in the future.

In personas changed:

@OneToMany(() => Contacto, (contacto) => contacto.idpersona, {
cascade: ['insert']
})
public contactos: Contacto[]`

with:

@OneToMany(type => Contactos, contactos => contactos.personas,{
cascade : true,
})
public contactos: Contactos[];`

In contactos changed:

@Column()
@IsNotEmpty()
idpersona: number;
@ManyToOne(type => Personas, {
})
@JoinColumn({name: "idpersona"})
persona: string;`

with:

@ManyToOne(() => Personas, personas => personas.id, {nullable: false})
@JoinColumn({name: "idpersona"})
personas: Personas;