Lighting and inheritance at Symfony

Question

I have a database schema in Symfony:

Persona:
    actAs: { Timestampable: ~ }
    columns:
      primer_nombre:  { type: string(255), notnull: true }
      segundo_nombre: { type: string(255) }
      apellido:   { type: string(255), notnull: true }
      rut:         { type: string(255) }
      email:       { type: string(255) }
      email2:      { type: string(255) } 
      direccion:     { type: string(400) }
      ciudad:        { type: string(255) }
      region:      { type: string(255) }
      pais:     { type: string(255) }
      telefono:       { type: string(255) }
      telefono2:      { type: string(255) }
      fecha_nacimiento:   { type: date }

Alumno:
 inheritance:
    type:          concrete
    extends:       Persona
 columns:
  comentario:  { type: string(255) }
  estado_pago: { type: string(255) }

Alumno_Beca:
 columns:
  persona_id:   { type: integer, primary: true }
  beca_id: { type: integer, primary: true }
 relations:
  Alumno: { onDelete: CASCADE, local: persona_id, foreign: id } 
  Beca: { onDelete: CASCADE, local: beca_id, foreign: id } 

Beca:
 columns:
  nombre:        { type: string(255) }
  monto:      { type: double }
  porcentaje:  { type: double }
  descripcion: { type: string(5000) }

As you can see, alumno has a specific inheritance from persona. Now I am trying to create fixtures for these two tables, and I can not get Doctrine to load them. This gives me this error:

SQLSTATE [23000]: integrity constraint Violation: 1452 Unable to add or update child row: foreign key constraint failed ( eat/alumno__beca, CONSTRAINT alumno__beca_persona_id_alumno_idFOREIGN KEY ( persona_id) REFERENCES alumno( id) DELETE CASCADE)

Does anyone know how to write a fixture for a table inherited from another?

Thank!

Answer 1

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