Magento 1.9 skip payment method step when grandtotal is zero

Question

I want to skip payment method step when Grandtotal is zero

Any help would be appreciated.

Thanks!!

Answer 1

Try this!

<?php
require_once(Mage::getModuleDir('controllers','Mage_Checkout').DS.'OnepageController.php');

class SR_MagentoCommunity_OnepageController extends Mage_Checkout_OnepageController
{
    /**
     * Save checkout billing address
     */
    public function saveBillingAction()
    {
        if ($this->_expireAjax()) {
            return;
        }

        if ($this->isFormkeyValidationOnCheckoutEnabled() && !$this->_validateFormKey()) {
            return;
        }

        if ($this->getRequest()->isPost()) {
            $data = $this->getRequest()->getPost('billing', array());
            $customerAddressId = $this->getRequest()->getPost('billing_address_id', false);

            if (isset($data['email'])) {
                $data['email'] = trim($data['email']);
            }
            $result = $this->getOnepage()->saveBilling($data, $customerAddressId);

            if (!isset($result['error'])) {
                if ($this->getOnepage()->getQuote()->isVirtual()) {
                    if ($this->getOnepage()->getQuote()->getGrandTotal() <= 0) {
                        $paymentData = array('method' => 'free');
                        $this->getOnepage()->savePayment($paymentData);
                        $this->loadLayout('checkout_onepage_review');
                        $result['goto_section'] = 'review';
                        $result['update_section'] = array(
                            'name' => 'review',
                            'html' => $this->_getReviewHtml()
                        );
                    } else {
                        $result['goto_section'] = 'payment';
                        $result['update_section'] = array(
                            'name' => 'payment-method',
                            'html' => $this->_getPaymentMethodsHtml()
                        );
                    }
                } elseif (isset($data['use_for_shipping']) && $data['use_for_shipping'] == 1) {
                    $result['goto_section'] = 'shipping_method';
                    $result['update_section'] = array(
                        'name' => 'shipping-method',
                        'html' => $this->_getShippingMethodsHtml()
                    );

                    $result['allow_sections'] = array('shipping');
                    $result['duplicateBillingInfo'] = 'true';
                } else {
                    $result['goto_section'] = 'shipping';
                }
            }

            $this->_prepareDataJSON($result);
        }
    }

    /**
     * Shipping method save action
     */
    public function saveShippingMethodAction()
    {
        if ($this->_expireAjax()) {
            return;
        }

        if ($this->isFormkeyValidationOnCheckoutEnabled() && !$this->_validateFormKey()) {
            return;
        }

        if ($this->getRequest()->isPost()) {
            $data = $this->getRequest()->getPost('shipping_method', '');
            $result = $this->getOnepage()->saveShippingMethod($data);
            // $result will contain error data if shipping method is empty
            if (!$result) {
                Mage::dispatchEvent(
                    'checkout_controller_onepage_save_shipping_method',
                     array(
                          'request' => $this->getRequest(),
                          'quote'   => $this->getOnepage()->getQuote()));
                $this->getOnepage()->getQuote()->collectTotals();
                $this->_prepareDataJSON($result);
                if ($this->getOnepage()->getQuote()->getGrandTotal() <= 0) {
                    $paymentData = array('method' => 'free');
                    $this->getOnepage()->savePayment($paymentData);
                    $this->loadLayout('checkout_onepage_review');
                    $result['goto_section'] = 'review';
                    $result['update_section'] = array(
                        'name' => 'review',
                        'html' => $this->_getReviewHtml()
                    );
                } else {
                    $result['goto_section'] = 'payment';
                    $result['update_section'] = array(
                        'name' => 'payment-method',
                        'html' => $this->_getPaymentMethodsHtml()
                    );
                }
            }
            $this->getOnepage()->getQuote()->collectTotals()->save();
            $this->_prepareDataJSON($result);
        }
    }

    /**
     * Create order action
     */
    public function saveOrderAction()
    {
        $this->getOnepage()->getQuote()->collectTotals()->save();
        return parent::saveOrderAction();
    }
}

Overwrite Mage_Checkout_Block_Onepage_Payment class:

<blocks>
    <checkout>
        <rewrite>
            <onepage_payment>SR_MagentoCommunity_Block_Onepage_Payment</onepage_payment>
        </rewrite>
    </checkout>
</blocks>

app/code/local/SR/MagentoCommunity/Block/Onepage/Payment.php

<?php

class SR_MagentoCommunity_Block_Onepage_Payment extends Mage_Checkout_Block_Onepage_Payment
{
    /**
     * Retrieve is allow and show block
     *
     * @return bool
     */
    public function isShow()
    {

        if ($this->getGrandTotal() <= 0) {
            return false;
        }

        return true;
    }

    private function getGrandTotal()
    {
        return Mage::getSingleton('checkout/type_onepage')->getQuote()->getGrandTotal();
    }
}

Finally, overwrite

skin/frontend/base/default/js/opcheckout.js

ShippingMethod.prototype.nextStep = function(transport){
    var response = transport.responseJSON || transport.responseText.evalJSON(true) || {};

    if (response.error) {
        alert(response.message.stripTags().toString());
        return false;
    }

    if (response.update_section) {
        $('checkout-'+response.update_section.name+'-load').update(response.update_section.html);
    }

    if (response.goto_section) {
        checkout.gotoSection(response.goto_section, true);
        checkout.reloadProgressBlock();
        return;
    }

    payment.initWhatIsCvvListeners();

    if (response.payment_methods_html) {
        $('checkout-payment-method-load').update(response.payment_methods_html);
    }

    checkout.setShippingMethod();
};

Review.prototype.save = function(){
    if (checkout.loadWaiting!=false) return;
    checkout.setLoadWaiting('review');
    if (!$('#co-payment-form')) {
        var params = 'method=free';
    } else {
        var params = Form.serialize(payment.form);
    }


    if (this.agreementsForm) {
        params += '&'+Form.serialize(this.agreementsForm);
    }
    params.save = true;
    new Ajax.Request(
        this.saveUrl,
        {
            method:'post',
            parameters:params,
            onComplete: this.onComplete,
            onSuccess: this.onSave,
            onFailure: checkout.ajaxFailure.bind(checkout)
        }
    );
};

[Update]

How you overwrite opcheckout.js?

skin/frontend/base/default/js/rewriteopcheckout.js

ShippingMethod.prototype.nextStep = function(transport){
    var response = transport.responseJSON || transport.responseText.evalJSON(true) || {};

    if (response.error) {
        alert(response.message.stripTags().toString());
        return false;
    }

    if (response.update_section) {
        $('checkout-'+response.update_section.name+'-load').update(response.update_section.html);
    }

    if (response.goto_section) {
        checkout.gotoSection(response.goto_section, true);
        checkout.reloadProgressBlock();
        return;
    }

    payment.initWhatIsCvvListeners();

    if (response.payment_methods_html) {
        $('checkout-payment-method-load').update(response.payment_methods_html);
    }

    checkout.setShippingMethod();
};

Review.prototype.save = function(){
    if (checkout.loadWaiting!=false) return;
    checkout.setLoadWaiting('review');
    if (!$('#co-payment-form')) {
        var params = 'method=free';
    } else {
        var params = Form.serialize(payment.form);
    }


    if (this.agreementsForm) {
        params += '&'+Form.serialize(this.agreementsForm);
    }
    params.save = true;
    new Ajax.Request(
        this.saveUrl,
        {
            method:'post',
            parameters:params,
            onComplete: this.onComplete,
            onSuccess: this.onSave,
            onFailure: checkout.ajaxFailure.bind(checkout)
        }
    );
};

Now open checkout/onepage.phtml template in your current theme. Ex. my case is default rwd/default.

app/design/frontend/rwd/default/template/checkout/onepage.phtml

Add following line:

<script type="text/javascript" src="<?php echo $this->getSkinUrl('js/rewriteopcheckout.js') ?>"></script>

I have tested with M1.9.4.1 with the fresh installation with sample data.

Answer 2

Affected file for above described problem is

{Magento-Root-Folder}/app/design/frontend/{YourTheme}/default/template/checkout/onepage/payment/methods.phtml

note that if folder 'checkout' is not available in your template folder, make sure to copy it from {Magento-Root-Folder}/app/design/frontend/base/default/template/checkout to your template folder; make sure you keep the structure identical

inside this file (methods.phtml) we actually look through available payments (around line 45), this is where we need to adjust a little.

1) place this line anywhere on top of your file to get current quote data (we will need it in step 2)

$quote_data = Mage::helper('checkout')->getQuote()->getData();

it will contain $quote_data[grand_total]

2) search for the payment methods iterating around line 45

foreach ($methods as $_method):
    $_code = $_method->getCode();

we need to check $_code ('free' means Zero Subtotal Checkout) and add a simple if clause inside the same foreach:

if ($_code == "free" && $quote_data[grand_total] < 1) { // if payment method is free and grand total '0'
    // this is where your action should happen
    $class_show_pm = ""; // will be used to show/hide 'dt' tag
    $radio_checked = "checked"; // will be used to enable/disable radio button
    $radio_onclick = "payment.switchMethod(" .$_code .")"; // will be used to load js code
} else {
    $class_show_pm = "none";
    $radio_checked = "";
    $radio_onclick = "";
}

You can check out this Skip Payment Step if Grand Total 0 too

I hope this helps