Magento – How to set billing and shipping address to Quote

In the template app/design/frontend/base/default/template/customer/address/edit.phtml you can see at the bottom there are two input items one for default shipping and one for default billing addresses.

<li<?php if($this->canSetAsDefaultShipping()) echo ' class="control"' ?>>
    <?php if($this->isDefaultShipping()): ?>
        <strong><?php echo $this->__('Default Shipping Address') ?></strong>
    <?php elseif($this->canSetAsDefaultShipping()): ?>
        <input type="checkbox" id="primary_shipping" name="default_shipping" value="1" title="<?php echo $this->__('Use as My Default Shipping Address') ?>" class="checkbox" /><label for="primary_shipping"><?php echo $this->__('Use as my default shipping address') ?></label>
    <?php else: ?>
        <input type="hidden" name="default_shipping" value="1" />
    <?php endif; ?>
</li>

What I would suggest is that you have two options.

1. Override the template used via layout xml and then simply remove this part from your new template.
2. Override the block so that the function canSetAsDefaultShipping always returns false.

Personally I would choose the template way at the moment as template changes feel easier to me.

If you have a sample layout xml the following snippet should work.

<customer_address_form>
    <reference name="customer_address_edit">
        <action method="setTemplate"><template>your/path/to/template.phtml</template></action>
    </reference>
</customer_address_form>

You need to set it the other way around. The default_billing for the customer.

$customerId = 1234; // Customer id
$data = array(); // Address data

$customer = Mage::getModel('customer/customer');

// Load customer
$customer->load($customerId);

// Get current address
$address = $customer->getPrimaryBillingAddress();

// Do we add a new address
$isNewAddress = false;
if (!$address) {
    $address = Mage::getModel('customer/address');

    $address->setCustomer($customer);
    $isNewAddress = true;
}

// Append data
$address->addData($data);
$address->save();

if ($isNewAddress) {
    // Add address to customer and save
    $customer->addAddress($address)
        ->setDefaultBilling($address->getId())
        ->save();
}