Coupling beetwen Magento_Checkout::js/view/shipping.js:validateShippingInformation() and layout definition or view.

[funkyproject]

Summary

On checkout shipping step, I reorganized the shipping address form and moved the postCode and countryId fields into a group.

I can't validate the shipping address without overriding the Magento_Checkout:js/view/shipping.js file and particulary the validateShippingInformation().

country = registry.get(this.parentName + '.shippingAddress.shipping-address-fieldset.country_id'),

In my case, I need to change this to :

country = registry.get(this.parentName + '.shippingAddress.shipping-address-fieldset.address_group.country_id'),

Preconditions

1. Magento CE 2.3.1

Steps to reproduce

1. Move the country_id field of shipping form into checkout.
2. validate the shipping address.

Examples (*)

This is the layoutProcessorPlugin for reorganize the shipping and billing form:

use Magento\Checkout\Block\Checkout\LayoutProcessor;

/**
 * Alter  Layout Processor and change shipping form
 */
class LayoutProcessorPlugin
{
    /**
     * Change jsLayout after process.
     *
     * @param LayoutProcessor $subject
     * @param array $jsLayout
     *
     * @return array
     *
     * @SuppressWarnings("unused")
     */
    public function afterProcess(LayoutProcessor $subject, $jsLayout): array
    {
        $this->updateShippingForm($jsLayout);
        $this->updateBillingForm($jsLayout);
        $this->moveBillingForm($jsLayout);

        return $jsLayout;
    }

    /**
     * Update shipping form.
     *
     * @param array $jsLayout
     */
    private function updateShippingForm(&$jsLayout): void
    {
        $fieldSet = &$jsLayout['components']['checkout']['children']
        ['steps']['children']['shipping-step']['children']['shippingAddress']
        ['children']['shipping-address-fieldset']['children'];

        $this->updateAddressForm($fieldSet, true);
    }

    /**
     * Update billing form.
     *
     * @param array $jsLayout
     */
    private function updateBillingForm(&$jsLayout): void
    {
        $fieldSet = &$jsLayout['components']['checkout']['children']
        ['steps']['children']['billing-step']['children']['payment']['children']['afterMethods']['children']
        ['billing-address-form']['children']['form-fields']['children'];

        $this->updateAddressForm($fieldSet, false);
    }

    /**
     * Update address form.
     *
     * @param array $fieldSet
     * @param bool $isShipping
     *
     * @SuppressWarnings(PHPMD)
     */
    private function updateAddressForm(&$fieldSet, bool $isShipping): void
    {
        $sort = [
            'prefix'             => ['sortOrder' => 5],
            'firstname_lastname' => ['sortOrder' => 10],
            'company_group'      => ['sortOrder' => 20],
            'address_group'      => ['sortOrder' => 200],
            'last_group'         => ['sortOrder' => 220],
            'region_id'          => ['sortOrder' => 210]
        ];

        $fieldSet['email'] = $fieldSet['firstname'];
        $fieldSet['email']['type'] = 'email';
        $fieldSet['email']['label'] = __('Email');
        $fieldSet['email']['dataScope'] = 'shippingAddress.email';

        $fieldSet['prefix']['component'] = 'Magento_Ui/js/form/element/checkbox-set';
        $fieldSet['prefix']['multiple'] = false;
        $fieldSet['prefix']['config']['template'] = 'ui/form/element/checkbox-set';
        $fieldSet['prefix']['config']['elementTpl'] = 'ui/form/components/single/radio';

        $fieldSet['firstname']['sortOrder'] = 2;
        $fieldSet['lastname']['sortOrder'] = 1;

        $fieldSet['postcode']['validation']['domtom'] = true;

        unset($fieldSet['telephone']['config']['tooltip']);
        $groups = [];
        $groups['firstname_lastname'] = [
            'component' => 'Magento_Ui/js/form/components/group',
            'label'     => [],
            'dataScope' => '',
            'provider'  => 'checkoutProvider',
            'sortOrder' => 1,
            'type'      => 'group',
            'config'    => [
                'template'          => 'ui/group/group',
                'additionalClasses' => 'form__row form__row--two'
            ],
            '_children' => ['lastname', 'firstname']
        ];

        $groups['company_group'] = [
            'component' => 'Magento_Ui/js/form/components/group',
            'label'     => [],
            'dataScope' => '',
            'provider'  => 'checkoutProvider',
            'sortOrder' => 2,
            'type'      => 'group',
            'config'    => [
                'template'          => 'ui/group/group',
                'additionalClasses' => 'form__row form__row--two'
            ],
            '_children' => ['company']
        ];

        $groups['address_group'] = [
            'component' => 'Magento_Ui/js/form/components/group',
            'label'     => [],
            'dataScope' => '',
            'provider'  => 'checkoutProvider',
            'sortOrder' => 2,
            'type'      => 'group',
            'config'    => [
                'template'          => 'ui/group/group',
                'additionalClasses' => 'form__row form__row--three'
            ],
            '_children' => ['postcode', 'city', 'country_id']
        ];

        $groups['last_group'] = [
            'component' => 'Magento_Ui/js/form/components/group',
            'label'     => [],
            'dataScope' => '',
            'provider'  => 'checkoutProvider',
            'sortOrder' => 2,
            'type'      => 'group',
            'config'    => [
                'template'          => 'ui/group/group',
                'additionalClasses' => 'form__row form__row--three'
            ],
            '_children' => ['telephone', 'email']
        ];

        $fieldSet['postcode']['config']['additionalClasses'] = 'field--15';
        $fieldSet['postcode']['sortOrder'] = 1;
        $fieldSet['city']['config']['additionalClasses'] = 'field--30';
        $fieldSet['city']['sortOrder'] = 2;
        $fieldSet['country_id']['config']['additionalClasses'] = 'field--48';
        $fieldSet['country_id']['sortOrder'] = 3;
        $fieldSet['email']['sortOrder'] = 2;
        $fieldSet['telephone']['sortOrder'] = 1;

        $fieldSet['street']['children'][0]['label'] = __('Address');
        $fieldSet['street']['children'][1]['label'] = __('Additional address');
        unset($fieldSet['street']['children'][2]);

        foreach ($groups as $name => $group) {
            $group['children'] = [];
            foreach ($group['_children'] as $childrenName) {
                $group['children'][$childrenName] = $fieldSet[$childrenName];
                unset($fieldSet[$childrenName]);
            }
            $fieldSet[$name] = $group;
        }

        foreach ($sort as $item => $config) {
            $fieldSet[$item] = array_merge($fieldSet[$item], $config);
        }

        unset($fieldSet['region_id']);
    }

    /**
     * Move billing form.
     *
     * @param array $jsLayout
     */
    private function moveBillingForm(&$jsLayout): void
    {
        $billingStep = &$jsLayout['components']['checkout']['children']['steps']['children']
        ['billing-step']['children']['payment']['children'];

        $afterMethods = $billingStep['afterMethods']['children'];
        $billingStep['afterMethods']['children'] = [];

        unset($afterMethods['discount']);
        $billingStep['beforeMethods']['children'] = array_merge(
            $billingStep['beforeMethods']['children'],
            $afterMethods
        );
    }
}

Proposed solution

No idea, but if we could set an alias for the uiRegistry, We could decoupling the view and validation logic.

[m2-assistant]

Hi @funkyproject. Thank you for your report.
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• Information on your environment
• Steps to reproduce
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• yes
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[m2-assistant]

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[krzksz]

Hey @funkyproject, thanks for finding this out!

Indeed, having paths to different components hardcoded in the source is not in line with Magento best practices. I took some time and applies some changes in https://github.com/magento/magento2/pull/25541/files that I found the most sensible. With it, you should be able to pass adjusted paths to country components through configuration which you seem to be customizing anyway.

Waiting for your feedback regarding this proposed solution.