Customer account creation, save boolean value in attribute

Question

So, as the title says, i've added some new attributes in my customer entity, one of which is a boolean, as you can see from the code in setup/InstallData.php

$customerSetup->addAttribute(\Magento\Customer\Model\Customer::ENTITY, 'azienda', [
        'type' => 'int',
        'label' => 'Azienda',
        'input' => 'boolean',
        'source' => '',
        'required' => false,
        'visible' => true,
        'position' => 333,
        'system' => false,
        'backend' => ''
    ]);

and i've also created the frontend layout override for "customer_account_create", everything works fine, other text fields i've added are saved correctly but i can't get it to save in my database this "azienda" attribute which is a boolean. I've tried checkboxes, radiobuttons, textfields with "yes", "true" and "1", whatever i put in that field the boolean attribute will be always unchecked (false) after registration.

Hope i've explained my issue well enough, thank you for your help :)

Answer 1

I have managed to fix it, in the end it wasn't something hard or impossible to find.

I did what i should have done from the beginning, check how the "subscribe to newsletter" was being saved and i've noticed that the <input type="checkbox"> had the value="1" property, so i've put it in my checkbox and now it works. Leaving here the code if someone has my same problem.

    <div class="field choice newsletter">
        <input type="checkbox" name="azienda" title="<?= $block->escapeHtmlAttr(__('Azienda')) ?>" value="1" id="azienda" class="checkbox">
        <label for="azienda" class="label"><span><?= $block->escapeHtml(__('Azienda')) ?></span></label>
    </div>

From what i understand this works because the checkboxes will be added to the post request ONLY if they are checked with the on value but if we add the value="1" property that gets sent instead and when Magento2 receives azienda -> 1 it saves it correctly in my user entity