Set minimum commerce product price

cateye

6/17/23, 11:23 PM

I want to set a minimum price that can be entered in the product add/edit form of Commerce. If users enter a lower price, an error should be displayed, when they click on the save button.

I am using the following code to achieve that.

function THEME_form_commerce_product_default_add_form_alter(&$form, \Drupal\Core\Form\FormStateInterface $form_state, $form_id) {
  $form['#validate'][] = '_custom_formvalidation_number_price_validate';
}
    
function _custom_formvalidation_number_price_validate(&$form, FormStateInterface $form_state) {
  if ($form['variations']['widget']['entity']['price']['widget'][0]['#default_value'] = ['number' => 2,'currency_code' => 'EUR'] > 2) {
    $form_state->setErrorByName('price', t('The price must be at least 2'));
  }
}

I need to check the entered value, not the default value. Which element is that exactly?

0 + 0

commerce

griz

6/20/23, 9:29 PM

You should write a simple module containing your custom validation function. The module should also contain a 'hook_form_alter' function that targets your form, and adds a reference to your validation function to form's the '#validate' array. https://drupal.stackexchange.com/questions/183685/how-do-i-add-a-custom-validation-handler-to-an-existing-form-field https://www.drupal.org/forum/support/module-development-and-code-questions/2017-02-11/form-custom-validation-after-hook

cateye

6/23/23, 12:41 PM

This is very helpful but I still can't set a minimum price value.

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Set minimum commerce product price

TH: กำหนดราคาสินค้าการค้าขั้นต่ำ

RO: Setați prețul minim al produsului comercial

RU: Установить минимальную цену коммерческого продукта

VI: Đặt giá sản phẩm thương mại tối thiểu

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