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Quantity field that displays the initial quantity (not editable) and allows editing with delta quantity instead (ex: +5, -8). The input data of this form type is the initial (as a plain integer) however, its output on submit is the delta quantity.

Type options

Option Type Default value Description

Code example

$builder->add('delta_quantity', DeltaQuantityType::class, [
    'required' => false,
    'label' => $this->trans('Edit quantity', 'Admin.Catalog.Feature'),
    'disabling_switch' => true,
    'disabling_switch_event' => 'combinationSwitchDeltaQuantity',
    'disabled_value' => function (?array $data) {
        return empty($data['quantity']) && empty($data['delta']);

Preview example

DeltaQuantityType rendered in form example