Laravel foreign key reference - laravel

Question

I'm trying to reference the description of a foreign key via a relation, like follows:
My model.
namespace App;
use Illuminate\Database\Eloquent\Model;
class Evento extends Model
{
//
protected $fillable = [
'idEvento',
'strNombreEvento',
'strDireccion',
'strCiudad',
'strCorreo',
'strTelefono',
'strEncargadoEvento',
'strNotas',
'idEscuela',
];
protected $primaryKey = 'idEvento';
public function escuela()
{
return $this->belongsTo('App\Escuela','idEscuela');
}
public function diaevento()
{
return $this->hasMany('App\diaEvento');
}
}
The relation
namespace App;
use Illuminate\Database\Eloquent\Model;
class Escuela extends Model
{
//
protected $fillable = [
'idEscuela',
'strNombreEscuela',
'bolPrincipal',
'strLogo',
'sitDiasUsuarioInactivo',
'sitDiasToleranciaCobro',
];
protected $primaryKey = 'idEscuela';
public function grupos()
{
return $this->hasMany('app\grupo');
}
public function eventos()
{
return $this->hasMany('app\eventos');
}
}
My view
#extends('layouts.app')
#section('content')
#guest
#else
<nav class="navbar navbar-dark sticky-top bg-dark flex-md-nowrap p-0">
<a class="navbar-brand col-sm-3 col-md-2 mr-0" href="#">Eventos</a>
</nav>
<div class="container-fluid">
<div class="row">
<nav class="col-sm-1 d-md-block bg-light sidebar">
<div class="sidebar-sticky">
<h6 class="sidebar-heading d-flex justify-content-between align-items-center px-3 mt-4 mb-1 text-muted">
<span>Acciones</span>
<a class="d-flex align-items-center text-muted" href="#">
<span data-feather="plus-circle"></span>
</a>
</h6>
<ul class="nav flex-column">
<li class="nav-item">
<span data-feather="home"></span>
<span class="sr-only"></span>
</li>
<li class="nav-item">
<a class="nav-link" href="/gymmgr/public/eventos/create">
<span data-feather="file"></span>
Nuevo
</a>
</ul>
</div>
</nav>
<main role="main" class="col-md-9 ml-sm-auto col-lg-10 pt-3 px-4">
<div class="d-flex justify-content-between flex-wrap flex-md-nowrap align-items-center pb-2 mb-3 border-bottom">
<h1 class="h5">Catálogo</h1>
<div class="btn-toolbar mb-2 mb-md-0">
<div class="btn-group mr-2">
<button class="btn btn-sm btn-outline-secondary">Exportar</button>
</div>
</div>
</div>
<table class="table">
<thead class="thead-light">
<tr>
<th>Evento</th>
<th>Escuela</th>
<th>Dirección</th>
<th>Ciudad</th>
<th>Correo</th>
<th>Teléfono</th>
<th>Contacto</th>
</tr>
</thead>
<tbody>
#foreach($eventos as $evento)
<tr>
<td> {{ $evento->strNombreEvento }} </td>
<td>{{ $evento->escuela->strNombreEscuela }}</td>
<td>{{ $evento->strDireccion }} </td>
<td>{{ $evento->strCiudad }} </td>
<td>{{ $evento->strCorreo }} </td>
<td>{{ $evento->strTelefono }} </td>
<td>{{ $evento->strEncargadoEvento }} </td>
</tr>
#endforeach
</tbody>
</table>
</main>
</div>
</div>
#endguest
#endsection
My controller
public function index()
{
//
$eventos = evento::all();
return view('eventos.index', ['eventos'=>$eventos]);
}
The result.
The thing is that the same mechanics is working with another model, which I post:
namespace App;
use Illuminate\Database\Eloquent\Model;
class grupo extends Model
{
//
protected $fillable = [
'idGrupo',
'idEscuela',
'strNombreGrupo',
];
protected $primaryKey = 'idGrupo';
public function escuela()
{
return $this->belongsTo('App\Escuela','idEscuela');
}
public function horarioGrupo()
{
return $this->hasMany('App\horario_Periodicos');
}
}
The relation is the same as with evento above.
My view
#extends('layouts.app')
#section('content')
#guest
#else
<nav class="navbar navbar-dark sticky-top bg-dark flex-md-nowrap p-0">
<a class="navbar-brand col-sm-3 col-md-2 mr-0" href="#">Grupos</a>
</nav>
<div class="container-fluid">
<div class="row">
<nav class="col-sm-1 d-md-block bg-light sidebar">
<div class="sidebar-sticky">
<h6 class="sidebar-heading d-flex justify-content-between align-items-center px-3 mt-4 mb-1 text-muted">
<span>Acciones</span>
<a class="d-flex align-items-center text-muted" href="#">
<span data-feather="plus-circle"></span>
</a>
</h6>
<ul class="nav flex-column">
<li class="nav-item">
<span data-feather="home"></span>
<span class="sr-only"></span>
</li>
<li class="nav-item">
<a class="nav-link" href="/gymmgr/public/grupos/create">
<span data-feather="file"></span>
Nuevo
</a>
</ul>
</div>
</nav>
<main role="main" class="col-md-9 ml-sm-auto col-lg-10 pt-3 px-4">
<div class="d-flex justify-content-between flex-wrap flex-md-nowrap align-items-center pb-2 mb-3 border-bottom">
<h1 class="h5">Catálogo</h1>
<div class="btn-toolbar mb-2 mb-md-0">
<div class="btn-group mr-2">
<button class="btn btn-sm btn-outline-secondary">Exportar</button>
</div>
</div>
</div>
<table class="table">
<thead class="thead-light">
<tr>
<th>Nombre del grupo</th>
<th>Escuela</th>
</tr>
</thead>
<tbody>
#foreach($grupos as $grupo)
<tr>
<td> {{ $grupo->strNombreGrupo }} ></td>
<td>{{ $grupo->escuela->strNombreEscuela }}</td>
</tr>
#endforeach
</tbody>
</table>
</main>
</div>
</div>
#endguest
#endsection
The controller
public function index()
{
//
$grupos = grupo::all();
return view('grupos.index', ['grupos'=>$grupos]);
}
I would appreciate your help.
Thanks.
I post my migrations, they where added today
The original Evento
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateEventosTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('eventos', function (Blueprint $table) {
$table->increments('idEvento');
$table->string('strNombreEvento', 200);
$table->string('strDireccion', 200);
$table->string('strCiudad', 200);
$table->string('strCorreo', 200);
$table->string('strTelefono', 20);
$table->string('strEncargadoEvento', 60);
$table->string('strNotas', 300);
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('eventos');
}
}
These one was dump, thinking in a direct referent from the foreign table
From Evento to Escuela, no intermediate.
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class DeleteDiasEventoTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
//
Schema::dropIfExists('dias_eventos');
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
//
Schema::create('dias_eventos', function (Blueprint $table) {
$table->increments('idDiasEventos');
$table->integer('idEvento')->unsigned();
$table->foreign('idEvento')->references('idEvento')->on('eventos');
$table->integer('idDiaEventos')->unsigned();
$table->foreign('idDiaEventos')->references('id')->on('dia_eventos');
$table->unique(['idEvento','idDiaEventos']);
$table->timestamps();
});
}
}
Then I modified Evento, including the foreign key by itself.
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class ModifyEventoTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
//
Schema::table('eventos', function($table) {
$table->integer('idEscuela')->unsigned();
$table->foreign('idEscuela')->references('idEscuela')->on('escuelas');
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::table('eventos', function (Blueprint $table) {
$table->dropForeign('eventos_idescuela_foreign');
$table->dropColumn('idEscuela');
});
}
}

Answer 1

Is your query returning array or object? If you dump it out, you might find that it's an array and all you need is an array access ([]) instead of an object access (->).