Filament•2mo ago

Using Related Field Data in Validation Messages

Can anyone tell me how to pass related data into the Validation message? Currently, this works as I want it to; I just need a better error message.

Select::make('entity_type_id')
    ->label('Entity Type')
    ->relationship('entityType', 'name')
    ->required(),
TextInput::make('name')
    ->required()
    ->unique('entities', 'name')
    ->validationMessages([
        'unique' => 'This {{I want to display entityType.name here}} already has an attribute with this name.',
    ])
    ->maxLength(255),

Select::make('entity_type_id')
    ->label('Entity Type')
    ->relationship('entityType', 'name')
    ->required(),
TextInput::make('name')
    ->required()
    ->unique('entities', 'name')
    ->validationMessages([
        'unique' => 'This {{I want to display entityType.name here}} already has an attribute with this name.',
    ])
    ->maxLength(255),

3 Replies

EleventhTower•2mo ago

I managed to get what I want with this:

 Select::make('entity_type_id')
    ->label('Entity Type')
    ->relationship('entityType', 'name')
    ->required(),
TextInput::make('name')
    ->required()
    ->unique('entities', 'name')
    ->validationMessages([
        'unique' => function ($get) {
            $entityTypeName = EntityType::where('id', $get('entity_type_id'))->first()->name;
            return "This {$entityTypeName} already has an entity with this name.";
        },
    ])
    ->maxLength(255),

 Select::make('entity_type_id')
    ->label('Entity Type')
    ->relationship('entityType', 'name')
    ->required(),
TextInput::make('name')
    ->required()
    ->unique('entities', 'name')
    ->validationMessages([
        'unique' => function ($get) {
            $entityTypeName = EntityType::where('id', $get('entity_type_id'))->first()->name;
            return "This {$entityTypeName} already has an entity with this name.";
        },
    ])
    ->maxLength(255),

Is there a better way to do this?

brahim•2mo ago

EleventhTower•2mo ago

Just an update that I found with other tests while implementing this, I had to change the implemenation of the unique rule to use modifyRuleUsing.

Select::make('entity_type_id')
    ->label('Entity Type')
    ->relationship('entityType', 'name')
    ->required(),
TextInput::make('name')
    ->required()
     ->unique(modifyRuleUsing: fn(Unique $rule, $get) => $rule->where('entity_type_id', get('entity_type_id')))
    ->validationMessages([
        'unique' => function ($get) {
            $entityTypeName = EntityType::where('id', $get('entity_type_id'))->first()?->name;
            return "The Entity Type '{$entityTypeName}' already has an entity with this name.";
        },
    ])
    ->maxLength(255),

Select::make('entity_type_id')
    ->label('Entity Type')
    ->relationship('entityType', 'name')
    ->required(),
TextInput::make('name')
    ->required()
     ->unique(modifyRuleUsing: fn(Unique $rule, $get) => $rule->where('entity_type_id', get('entity_type_id')))
    ->validationMessages([
        'unique' => function ($get) {
            $entityTypeName = EntityType::where('id', $get('entity_type_id'))->first()?->name;
            return "The Entity Type '{$entityTypeName}' already has an entity with this name.";
        },
    ])
    ->maxLength(255),

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Using Related Field Data in Validation Messages