Undefined offset 0 - Laravel

Question

I have a list of users, each user has their 'role' (role/function within the system, such as 'user' and 'admin') and this role has to be shown on the user listing screen, which I did using the code block below.

@foreach ($users as $key => $user)
 <tr class="list-users">
  <td>{{ $user->id }}</td>
  <td>{{ $user->name }}</td>
  <td>{{ $user->email }}</td>
  <td>{{ $user->roles[0]->name }}</td>
 </tr>
@endforeach

Error occurs with this line <td>{{ $user->roles[0]->name }}</td>, indicating that roles do not have the index '0', but when I dump {{ dd($user->roles[0]->name) }}, it returns me the variable normally ( a string with the name of the user’s role).

If I try to access using the 'role' using {{ $user->roles()->first()->name }} the case is similar. With the dd() works normally, but in the @foreach an error occurs. The only difference is the type of error returned: 'Trying to get property 'name' of non-object '.

What could be causing this?

Answer 1

Sometimes a user may not have a role defined, and even though by the question I understand that every user has a role, sometimes, it may be the case that it was registered without a role.

I would suggest using the following code to make sure the user has some role:

{{ is_null($user->roles()->first()) ? 'Sem qualificação' : $user->roles()->first()->name }}

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And a hint, if not using the function with when loading users, I would suggest using to not have to upload this information when displaying.

Just put the function with('roles') when loading users, here is the documentation, Eager Loading.