In Magento 2 there is form field type 'checkboxes'. I've added it to my adminhtml edit form:

// app\code\Vendor\Module\Block\Adminhtml\Point\Edit\Form.php

                'label' => __('Payment Types'),
                'name' => 'payment_types',
                'values' => [
                    ['value' => '2','label' => 'Card'],
                    ['value' => '3','label' => 'Cash'],
                    ['value' => '4','label' => 'Prepaid'],

And it looks like this:


I've tried to store it in database in varchar field with imploding and exploding it in model:

     * Set payment_types
     * @param array $paymentTypes
     * @return \Vendor\Module\Api\Data\PointInterface
    public function setPaymentTypes($paymentTypes)
        $stringTypes = implode(', ', $paymentTypes);

        return $this->setData(self::PAYMENT_TYPES, $stringTypes);

     * Get payment types
     * @return string|null
    public function getPaymentTypes()
        return explode(', ', $this->getData(self::PAYMENT_TYPES));

But it always saves the last checkbox's value. For example: if I check 'Card' and 'Cash', in database it will be '3', if I check 'Cash' and 'Prepaid', it will be '4' and so on.

Saving it as a string suits perfect for me, but I need it to save correct values: '2, 3' in first case and '3, 4' in second.

What is the right way of doing this?

1 Answer 1


Change this

'name' => 'payment_types',

to this

'name' => 'payment_types[]',

and the rest of your code should work.

  • Sounds logical, but when I change it to 'payment_types[]' I get and error "Something went wrong while saving the point."
    – jurgen
    Commented May 26, 2016 at 15:03
  • see how the data you get throgh $_POST looks like.
    – Marius
    Commented May 26, 2016 at 15:08
  • When I made explode and implode in Model, it has no effect. But when I made it in ResourceModel in _afterLoad() and _beforeSave(), it works perfectly, thank you!
    – jurgen
    Commented May 26, 2016 at 16:27

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