Filament•7mo ago

Editing a many-to-many attachment with pivot attributes.

I have a Creature and Shield model with a CreatureShield pivot table. The belongsToMany relationship is defined in both Models. I can attach and detach from the Creature model, including adding pivot table fields for new attachments. When I try to edit an existing attachment I get this error: Filament\Support\Services\RelationshipJoiner::prepareQueryForNoConstraints(): Argument #1 ($relationship) must be of type Illuminate\Database\Eloquent\Relations\Relation, null given, called in /var/www/html/vendor/filament/forms/src/Components/Select.php This is my first Laravel project and I'm a hobby coder so please excuse my lack of knowledge.

Solution:

I solved the problem by removing the "shield_id" select statement.

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2 Replies

RandakOP•7mo ago

class ShieldsRelationManager extends RelationManager
{
    protected static string $relationship = 'shields';

    public function form(Form $form): Form
    {
        return $form
            ->schema([
                Forms\Components\Select::make('shield_id')
                    ->relationship('shield', 'description')
                    ->required(),
                Forms\Components\Select::make('combat_action')
                    ->required()
                    ->options([
                        'attack' => 'Attack',
                        'parry' => 'Parry',
                    ]),
                Forms\Components\TextInput::make('fame_points')
                    ->required()
                    ->integer(),
            ]);
    }

    public function table(Table $table): Table
    {
        return $table
            ->allowDuplicates()
            ->recordTitleAttribute('description')
            ->columns([
                Tables\Columns\TextColumn::make('description')
                    ->sortable(),
                Tables\Columns\TextColumn::make('combat_action')
                    ->sortable(),
                Tables\Columns\TextColumn::make('fame_points')
                    ->sortable(),

            ])
            ->headerActions([
                Tables\Actions\AttachAction::make()
                    ->preloadRecordSelect()
                    ->form(fn (AttachAction $action): array => [
                        $action->getRecordSelect(),
                        Forms\Components\Select::make('combat_action')
                            ->options([
                                'attack' => 'Attack',
                                'parry' => 'Parry',
                            ])
                            ->required(),
                        Forms\Components\TextInput::make('fame_points')
                            ->numeric()
                            ->required(),
                    ]),
            ])

class ShieldsRelationManager extends RelationManager
{
    protected static string $relationship = 'shields';

    public function form(Form $form): Form
    {
        return $form
            ->schema([
                Forms\Components\Select::make('shield_id')
                    ->relationship('shield', 'description')
                    ->required(),
                Forms\Components\Select::make('combat_action')
                    ->required()
                    ->options([
                        'attack' => 'Attack',
                        'parry' => 'Parry',
                    ]),
                Forms\Components\TextInput::make('fame_points')
                    ->required()
                    ->integer(),
            ]);
    }

    public function table(Table $table): Table
    {
        return $table
            ->allowDuplicates()
            ->recordTitleAttribute('description')
            ->columns([
                Tables\Columns\TextColumn::make('description')
                    ->sortable(),
                Tables\Columns\TextColumn::make('combat_action')
                    ->sortable(),
                Tables\Columns\TextColumn::make('fame_points')
                    ->sortable(),

            ])
            ->headerActions([
                Tables\Actions\AttachAction::make()
                    ->preloadRecordSelect()
                    ->form(fn (AttachAction $action): array => [
                        $action->getRecordSelect(),
                        Forms\Components\Select::make('combat_action')
                            ->options([
                                'attack' => 'Attack',
                                'parry' => 'Parry',
                            ])
                            ->required(),
                        Forms\Components\TextInput::make('fame_points')
                            ->numeric()
                            ->required(),
                    ]),
            ])

The closest I've got is adding

->multiple

->multiple

Select:make(shield_id) That allows me to open the edit form, but does not pre-populate the shield description. When I click on that field it brings up the search (no dropdown) and then errors when I type anything. The other fields seem to edit fine.

Solution

Randak•7mo ago

I solved the problem by removing the "shield_id" select statement.

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Editing a many-to-many attachment with pivot attributes.