Filament•16mo ago

Multiple select displays only one item

I have a select that allows multiple elements to be selected (they are currently in Edit). My select has selected elements id: 29,5 Which in the Platform table corresponds to: Xbox Series X, PC. He in the panel instead, shows me only Xbox Series X, fetching only one element.

Select::make('id_console[]')
    ->label('Platform:')
    ->relationship('platform','name')
    ->extraInputAttributes(['multiple' => true])
    ->searchable()
    ->required(),

Select::make('id_console[]')
    ->label('Platform:')
    ->relationship('platform','name')
    ->extraInputAttributes(['multiple' => true])
    ->searchable()
    ->required(),

public function platform()
{
    return $this->belongsTo('App\Models\Platform', 'id_console', 'id');
}

public function platform()
{
    return $this->belongsTo('App\Models\Platform', 'id_console', 'id');
}

4 Replies

cheesegrits•16mo ago

I'm a little confused. Your 'platform' relationship is a BelongsTo, so by definition can only have a single selection. And not sure what that extraInputAttributes is for? If you want to select mutiple options, you need to use ->multiple(), and the relationship itself has to be a BelongsToMany (or some other "many" relationship).

AskancyOP•16mo ago

I too am confused @Hugh Messenger 😂, with:

    public function platforms()
    {
        return $this->hasMany('App\Models\Piattaforme', 'id', 'id_console');
    }

    public function platforms()
    {
        return $this->hasMany('App\Models\Piattaforme', 'id', 'id_console');
    }

  Select::make('id_console[]')
      ->label('Platform:')
      ->relationship('platforms','name')
      ->multiple()
      ->searchable()
      ->required(),

  Select::make('id_console[]')
      ->label('Platform:')
      ->relationship('platforms','name')
      ->multiple()
      ->searchable()
      ->required(),

I get the error: >Filament\Forms\Components\Select::getRelationship(): Return value must be of type Illuminate\Database\Eloquent\Relations\BelongsTo|Illuminate\Database\Eloquent\Relations\BelongsToMany|Znck\Eloquent\Relations\BelongsToThrough|null, Illuminate\Database\Eloquent\Relations\HasMany returned

Brian Kidd•16mo ago

He pointed out the relationship needs to be a BelongsToMany, not HasMany

cheesegrits•16mo ago

It wouldn't be a HasMany. It seems like what you need is a pivot table between whatever the model you are building this form on is, and the Platform model, so you can use a HasMany. https://laravel.com/docs/10.x/eloquent-relationships#many-to-many

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Multiple select displays only one item