Laravel 8 make 2 relationship between the same model - orm

Question

So, this is my relationship method on file model:
public function User()
{
return $this->belongsTo(
User::class,
'user_id',
'id'
);
}
public function modify()
{
return $this->belongsTo(
User::class,
'update_id',
'id'
);
}
This is my model table
This is my model migration code
public function up()
{
Schema::create('files', function (Blueprint $table) {
$table->id();
$table->foreignId('user_id')->constrained()->cascadeOnUpdate()->cascadeOnDelete();
$table->foreignId('update_id')->nullable()->references('id')->on('users');
$table->foreignId('division_id')->constrained()->cascadeOnUpdate();
$table->string('title');
$table->string('slug')->unique();
$table->text('details');
$table->timestamp('published_at')->nullable();
$table->timestamps();
});
}
This is my view code:
#foreach ($files as $key=>$file)
<tr>
<td>{{ $files->firstItem() + $key }}</td>
<td>{{ $file->title }}</td>
<td>{{ $file->division->name }}</td>
<td>
#if (auth()->user()->id == 1)
{{ $file->user->name }}
#else
{{ $file->user->name }}
#endif
</td>
<td>{{ $file->created_at }}</td>
<td>
{{-- #foreach ($file->modify as $update) --}}
{{ dd($file->modify->name) }}
This is my page view look like after executing code above
after change this line:
{{ dd($file->modify->name) }}
to:
{{ ($file->modify->name) }}
i got the following error:
ErrorException
Trying to get property 'name' of non-object

Answer 1

It would seem like the first $file in you array has the modify relationship set but there's a subsequent $file that's missing it. Either do a null check or make sure that the relationship is always set.