Getting data from foreign key on view (Laravel 5.6) - php

Question

I already searched for answers but I couldn't find any answer that could solve my problem.
I have 2 tables: phones and phone_types. The first one has a foreign key associated with the phone_types primary key. I want to show on view the name of phone_type through phone object. Something like $phone->phone_type->name.
My code generates this error: Trying to get property of non-object (View: /home/ablono/dev/MisServices/resources/views/painel/phones/home.blade.php)
My code is listed below.
phone_types miration table:
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreatePhoneTypesTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('phone_types', function (Blueprint $table) {
$table->increments('id');
$table->string('name', 20);
$table->string('description', 30);
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('phone_types');
}
}
```
phones migration table:
<?php
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreatePhonesTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('phones', function (Blueprint $table) {
$table->increments('id');
$table->string('ddd')->default('13');
$table->string('number', 20);
$table->integer('phone_type_id')->unsigned();
$table->foreign('phone_type_id')
->references('id')
->on('phone_types')
->onDelete('cascade');
$table->timestamps();
});
Schema::create('phone_user', function (Blueprint $table) {
$table->increments('id');
$table->integer('phone_id')->unsigned();
$table->integer('user_id')->unsigned();
$table->foreign('phone_id')
->references('id')
->on('phones')
->onDelete('cascade');
$table->foreign('user_id')
->references('id')
->on('users')
->onDelete('cascade');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('phone_user');
Schema::dropIfExists('phones');
}
}
I didn't code anything on PhoneType model, but here is the code:
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class PhoneType extends Model
{
//
}
Phone model:
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Phone extends Model
{
public function users()
{
return $this->belongsToMany(\App\User::class);
}
public function phoneType()
{
return $this->hasMany(\App\PhoneType::class);
}
}
Method that is sending that to view:
public function index()
{
$phones = Phone::all();
return view('painel.phones.home', compact('phones'));
}
Part of view that is listing data:
<table class="table">
<thead>
<th>ID</th>
<th>DDD</th>
<th>Número</th>
<th>Tipo de Telefone</th>
<th width="150px">Ações</th>
</thead>
<tbody>
#foreach($phones as $phone)
<tr>
<div class="loading"></div>
<td>{{ $phone->id }}</td>
<td>{{ $phone->ddd }}</td>
<td>{{ $phone->number }}</td>
<td>{{ $phone->phone_type_id->name }}</td>
<td>
<i class="fa fa-lg fa-phone" title="Visualizar usuários que usam {{ $phone->number }}"></i>
<i class="fa fa-lg fa-pencil" title="Editar {{ $phone->number }}"></i>
<i class="fa fa-lg fa-times" title="Excluir {{ $phone->number }}"></i>
<i class="fa fa-lg fa-eye" title="Visualizar {{ $phone->number }}"></i>
</td>
</tr>
#endforeach
</tbody>
</table>

Answer 1

Change your relationship to belongsTo():
public function phoneType()
{
return $this->belongsTo(\App\PhoneType::class, 'phone_type_id');
}
And in view
<td>{{ $phone->phone_type->name }}</td>

Answer 2

Please check your eloquent model relationship. And accessing the eloquent property is like .
$main-model->$sub-model(method name of model which you want access)->property
Note: When you access method please convert method name in to snake case