title: I can't insert related table field
body: <p>These are my tables:</p>
  <pre><code>@Entity('personas')
  export class Personas {
  
      @PrimaryGeneratedColumn()
      @IsNumber()
      id: number;
  
      @Column({type:&quot;varchar&quot;,length:100})
      @IsNotEmpty()
      nombre: string;
      
      @OneToMany(type =&gt; Contactos, contactos =&gt; contactos.idpersona, {cascade: true})
      contactos : Contactos[] 
      
  }
  
  @Entity('contactos')
  export class Contactos {
  
    @PrimaryGeneratedColumn()
    @IsNumber()
    id: number;
  
    @Column()
    @IsNotEmpty()
    idpersona: number;
    @ManyToOne(type =&gt; Personas, {
    })
    @JoinColumn({name: &quot;idpersona&quot;})
    persona: string;
  
    @Column({type:&quot;varchar&quot;,length:100})
    nombre: string;
  
    @Column({type:&quot;varchar&quot;,length:11})
    telefono: string;
     
  }
  </code></pre>
  <p>This is the body of the query to add the records:</p>
  <pre><code>{
      &quot;nombre&quot;:&quot;TestPersona&quot;,
      &quot;contactos&quot;:[{      
                  &quot;nombre&quot;:&quot;TestContacto&quot;,
                  &quot;telefono&quot;: &quot;123456789&quot;}
                  ]
  }
  </code></pre>
  <p>This is the error: [ExceptionsHandler] Field 'idpersona' doesn't have a default value.</p>
  <p>It is assumed that the field idPersona in Contacts, should be inserted automatically. What am I doing wrong?. From already thank you very much.</p>