Laravel Nova Price Field

Installation

composer require wamesk/laravel-nova-price-field

Casts

This package provides two Eloquent casts for storing prices as integers (cents).

PriceCast

Full-featured cast with tax support. Use when the model has tax logic (withTax, withoutTax, taxAmount, etc.).

use Wame\LaravelNovaPriceField\Casts\PriceCast;

protected function casts(): array
{
    return [
        'price' => PriceCast::class,
    ];
}

Available methods on the cast value:

Optional model static properties:

// Automatically reads price_without_tax column
public static string|bool $priceWithoutTaxColumn = true;

// Custom tax column (default: 'tax')
public static string $taxColumn = 'vat';

// Custom quantity column (default: 'quantity')
public static string $quantityColumn = 'qty';

// Custom currency column
public static string $currencyColumn = 'currency_code';

SimplePriceCast

Lightweight cast without any tax logic. Use for cost fields, budgets, or any price stored without VAT context.

use Wame\LaravelNovaPriceField\Casts\SimplePriceCast;

protected function casts(): array
{
    return [
        'planned_cost' => SimplePriceCast::class,
        'actual_cost'  => SimplePriceCast::class,
    ];
}

Available methods on the cast value:

Both casts share the same base class (AbstractPriceCast) and resolve the currency from the model's currency, currency_id, or $currencyColumn property (defaulting to EUR).

Nova Field

Auto-detection of cast type

The Price field automatically detects which cast is used on the model attribute and adjusts its behaviour accordingly — no manual configuration needed.

If ->withAllFieldOnForm() is called on a field backed by SimplePriceCast, the tax input sub-fields are suppressed automatically (the with_all_field_on_form meta is overridden to false at resolve time).

// PriceCast — full tax fields shown automatically
Price::make('Price', 'price'),

// SimplePriceCast — tax fields hidden automatically, even with withAllFieldOnForm()
Price::make('Planned cost', 'planned_cost'),

Shows a single input for price. When viewing on detail or index, shows price with currency suffix.

use Wame\LaravelNovaPriceField\Fields\Price;

Price::make('price'),

Showing total price

Price::make('price')
    ->asTotal(),

Usage should be only for viewing (detail and index page).

Multiple fields on form

Adds price without tax and tax input with automatic calculation. Saves only price with tax.

Price::make()
    ->withAllFieldOnForm()

With custom column names:

Price::make()
    ->withAllFieldOnForm(withoutTaxColumn: 'price_without_tax', taxColumn: 'tax')

Using price inputs without tax input

Price::make()
    ->withAllFieldOnForm()
    ->hideTaxFormField()
    ->setTax(23)

Using predefined tax options

Price::make()
    ->withAllFieldOnForm()
    ->taxFieldAsSelect([
        10 => ['name' => 'Reduced tax (10%)'],
        23 => ['name' => 'Standard tax (23%)'],
    ])

Save the selected option ID:

Price::make()
    ->withAllFieldOnForm()
    ->taxFieldAsSelect([
        10 => ['id' => 'reduced',  'name' => 'Reduced tax (10%)'],
        23 => ['id' => 'standard', 'name' => 'Standard tax (23%)'],
    ], 'vat_rate_type')

Save the option value (key) instead of ID:

Price::make()
    ->withAllFieldOnForm()
    ->taxFieldAsSelect([
        10 => ['id' => 'reduced',  'name' => 'Reduced tax (10%)'],
        23 => ['id' => 'standard', 'name' => 'Standard tax (23%)'],
    ], 'vat_rate_type', true)