<?php
namespace XhunterModels;
use IlluminateDatabaseEloquentModel;
class Registro extends Model
{
protected $table = 'registro_emergencia';

protected $fillable = [
    'personal_id',
    'emergencias_id',
    'sub_estaciones',
    'emergencia',
    'descripción_emergencia',
    'dirección',
    'num_escoltas',
    'personas_atendidas',
    'hora_salida',
    'hora_retorno',
    'fecha_reporte'
];

public function personal()
{
    return $this->belongsTo(Personal::class);
}

public function vehiculos()
{
    return $this->belongsToMany(Vehiculo::class);
}

public function emergencias()
{
    return $this->belongsTo(Emergencia::class);
}

#region Accesores
public function getNamePersonalAttribute()
{
    return "{$this->personal->nombre_completo}";
}

public function getNameVehiculoAttribute()
{
    return "{$this->vehiculos->vehiculo_unidad}";
}

public function getNameEmergenciaAttribute()
{
    return "{$this->emergencias->tipo_emergencia}";
}
#endregion }

<?php
namespace XhunterModels;
use IlluminateDatabaseEloquentModel;
class Vehiculo extends Model
{
protected $fillable = [
    'imagen',
    'vehiculo_unidad',
    'num_serie',
    'inventario',
    'no_motor',
    'marca',
    'modelo',
    'placas',
    'estatus_vehiculo'
];

public function registro()
{
    return $this->belongsToMany(Registro::class);
}}

<?php
use IlluminateSupportFacadesSchema;
use IlluminateDatabaseSchemaBlueprint;
use IlluminateDatabaseMigrationsMigration;
class CreateReportesUnidades extends Migration
{
public function up()
{
    Schema::create('reportes_unidades', function (Blueprint $table) {
        $table->increments('id');
        $table->integer('registro_id')->unsigned();
  $table->foreign('registro_id')->references('id')->on('registro_emergencia');
        $table->integer('vehiculos_id')->unsigned();
        $table->foreign('vehiculos_id')->references('id')->on('vehiculos');
        $table->timestamps();
    });
}

/**
 * Reverse the migrations.
 *
 * @return void
 */
public function down()
{
    Schema::dropIfExists('reportes_unidades');
}
}