Laravel view won't loop model even though it is populated - laravel-5

Question

I'm creating a web based interface for my dovecot database.
I can get a list of all the virtual domains in the database and the number of emails and aliases easily enough.
But when I try to load a page to list the emails under a specific domain, it goes weird.
Three simple models:
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class VirtualDomain extends Model
{
public function emails()
{
return $this->hasMany('App\VirtualUser', 'domain_id');
}
public function aliases()
{
return $this->hasMany('App\VirtualAlias', 'domain_id');
}
}
class VirtualUser extends Model
{
/**
* The attributes that should be hidden for arrays.
*
* #var array
*/
protected $hidden = [
'password',
];
}
class VirtualAlias extends Model
{
//
}
My default controller:
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\VirtualDomain;
use App\VirtualUser;
class HomeController extends Controller
{
/**
* Create a new controller instance.
*
* #return void
*/
public function __construct()
{
$this->middleware('auth');
}
/**
* #return \Illuminate\Http\Response
*/
public function index()
{
return view('home', [
'domains' => VirtualDomain::all(),
]);
}
public function domain($name)
{
$domain = VirtualDomain::where('name', $name)->first();
return view('domain', [
'domain' => $domain,
'emails' => VirtualUser::where('domain_id', $domain->id),
]);
}
}
and a couple of simple blades
home.blade.php
<p>
{{ $domains->count() }} domains
</p>
<table class="table-summary">
<thead>
<tr>
<th>name</th>
<th>emails</th>
<th>aliases</th>
<th class="table-summary-options">options</th>
</tr>
</thead>
<tbody>
#foreach ($domains as $domain)
<tr>
<td><a title="view emails for this domain" href="domain/{{ $domain->name }}">{{ $domain->name }}</a></td>
<td>{{ $domain->emails->count() }}</td>
<td>{{ $domain->aliases->count() }}</td>
<td class="table-summary-options"><a class="ui-action" title="remove this domain" href=""><img src="/img/ui/remove.png" alt="remove"></a></td>
</tr>
#endforeach
</tbody>
</table>
and domain.blade.php
<p>
<< - {{ $domain->name }} - {{ $emails->count() }} emails
</p>
<table class="table-summary">
<thead>
<tr>
<th>email</th>
<th class="table-summary-options">options</th>
</tr>
</thead>
<tbody>
#foreach ($emails as $email)
<tr>
<td><a title="view aliases for this domain" href="email/{{ $email->email }}">{{ $email->email }}</a></td>
<td class="table-summary-options"><a class="ui-action" title="remove this email" href=""><img src="/img/ui/remove.png" alt="remove"></a></td>
</tr>
#endforeach
</tbody>
</table>
The view outputs the correct number of emails under the domain with {{ $emails->count() }} - but the#foreach ($emails as $email)` does not loop.
When I modify the blade to simple use the emails from the domain variable ({{ $domain->emails->count() }} and #foreach ($domain->emails as $email)), I get the right count and the list is populated correctly.
What's making it go wrong when using the emails variable?

Answer 1

You have to make a small change for it to work
public function domain($name)
{
$domain = VirtualDomain::where('name', $name)->first();
return view('domain', [
'domain' => $domain,
'emails' => VirtualUser::where('domain_id', $domain->id)->get(),
]);
}
Without ->get() you will get a query builder instance while with get() will return a collection. In the foreach loop a collection can be iterated while a query builder instance can't be.
Hope this helps