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Magento Theme Development Tutorial: How to Develop a Product Page

November 5, 2015

4 Min Read
Reading Time: 4 minutes

In the first part of the Magento Theme development, I introduced you to the basics of theme development, including the packages, folder structure in Magento and Magento Base Directory. The first part was only an introduction to Magento Theme building. Now, we are going to start with more technical aspects of theme development. I will be going through each part one-by-one. I will start off with the Product Page.

A good store needs well-built Product Pages. If this page fails to impress, chances are you will not make good sales. Therefore, proper attention should be giving to the development of this page.

Create Magento Theme

Every module of a theme gets its own XML file. This file defines the structure of the display to the browser. For product pages, the catalog.xml file is of great importance as it sets the structure for product page.

Creating catalog.xml file

Catalog.xml is saved in /app/design/frontend/cloudways/w-c/layout directory.

<catalog_product_view translate="label">
<label>Catalog Product View (Any)</label>
<!-- Mage_Catalog -->
<reference name="root">
<action method="setTemplate"><template>page/2columns-right.phtml</template></action>
</reference>
<reference name="head">
<action method="addJs"><script>varien/product.js</script></action>
<action method="addJs"><script>varien/configurable.js</script></action>

<action method="addItem"><type>js_css</type><name>calendar/calendar-win2k-1.css</name><params/><!--<if/><condition>can_load_calendar_js</condition>--></action>
<action method="addItem"><type>js</type><name>calendar/calendar.js</name><!--<params/><if/><condition>can_load_calendar_js</condition>--></action>
<action method="addItem"><type>js</type><name>calendar/calendar-setup.js</name><!--<params/><if/><condition>can_load_calendar_js</condition>--></action>
</reference>

And with this, our base catalog.xml file is complete.

Creating view.phtml file

Since we have now specified the layout, we will create the view.phtml file. It works as the main template for the substance segment in the XML earlier.

This file should be saved in /app/design/frontend/cloudways/w-c/template/catalog/product directory. Here is the view.phtml file.

<?php $_helper = $this->helper('catalog/output'); ?>
<?php $_product = $this->getProduct(); ?>

<script type="text/javascript">
var optionsPrice = new Product.OptionsPrice(<?php echo $this->getJsonConfig() ?>);
</script>
<div id="messages_product_view"><?php echo $this->getMessagesBlock()->getGroupedHtml() ?></div>
<div class="product-view">
<div class="product-essential">
<form action="<?php echo $this->getSubmitUrl($_product) ?>" method="post" id="product_addtocart_form"<?php if($_product->getOptions()): ?> enctype="multipart/form-data"<?php endif; ?>>
<div class="no-display">
<input type="hidden" name="product" value="<?php echo $_product->getId() ?>" />
<input type="hidden" name="related_product" id="related-products-field" value="" />
</div>

<div class="product-shop">
<div class="product-name">
<h1><?php echo $_helper->productAttribute($_product, $_product->getName(), 'name') ?></h1>
</div>

<?php echo $this->getReviewsSummaryHtml($_product, false, true)?>

<?php if ($this->canEmailToFriend()): ?>
<p class="email-friend"><a href="<?php echo $this->helper('catalog/product')->getEmailToFriendUrl($_product) ?>"><?php echo $this->__('Email to a Friend') ?></a></p>
<?php endif; ?>
<?php echo $this->getChildHtml('alert_urls') ?>
<?php echo $this->getChildHtml('product_type_data') ?>
<?php echo $this->getTierPriceHtml() ?>
<?php echo $this->getChildHtml('extrahint') ?>

<?php if (!$this->hasOptions()):?>
<div class="add-to-box">
<?php if($_product->isSaleable()): ?>
<?php echo $this->getChildHtml('addtocart') ?>
<?php if( $this->helper('wishlist')->isAllow() || $_compareUrl=$this->helper('catalog/product_compare')->getAddUrl($_product)): ?>
<span class="or"><?php echo $this->__('or') ?></span>
<?php endif; ?>
<?php endif; ?>
<?php echo $this->getChildHtml('addto') ?>
</div>
<?php echo $this->getChildHtml('extra_buttons') ?>
<?php elseif (!$_product->isSaleable()): ?>
<div class="add-to-box">
<?php echo $this->getChildHtml('addto') ?>
</div> 
<?php endif; ?>

<?php if ($_product->getShortDescription()):?>
<div class="short-description">
<h2><?php echo $this->__('Quick Overview') ?></h2>
<div class="std"><?php echo $_helper->productAttribute($_product, nl2br($_product->getShortDescription()), 'short_description') ?></div>
</div>
<?php endif;?>

<?php echo $this->getChildHtml('other');?>

<?php if ($_product->isSaleable() && $this->hasOptions()):?>
<?php echo $this->getChildChildHtml('container1', '', true, true) ?>
<?php endif;?>

</div>

<div class="product-img-box">
<?php echo $this->getChildHtml('media') ?>
</div>

<div class="clearer"></div>
<?php if ($_product->isSaleable() && $this->hasOptions()):?>
<?php echo $this->getChildChildHtml('container2', '', true, true) ?>
<?php endif;?>
</form>
<script type="text/javascript">
//<![CDATA[
var productAddToCartForm = new VarienForm('product_addtocart_form');
productAddToCartForm.submit = function(button, url) {
if (this.validator.validate()) {
var form = this.form;
var oldUrl = form.action;

if (url) {
form.action = url;
}
var e = null;
try {
this.form.submit();
} catch (e) {
}
this.form.action = oldUrl;
if (e) {
throw e;
}

if (button && button != 'undefined') {
button.disabled = true;
}
}
}.bind(productAddToCartForm);

productAddToCartForm.submitLight = function(button, url){
if(this.validator) {
var nv = Validation.methods;
delete Validation.methods['required-entry'];
delete Validation.methods['validate-one-required'];
delete Validation.methods['validate-one-required-by-name'];
// Remove custom datetime validators
for (var methodName in Validation.methods) {
if (methodName.match(/^validate-datetime-.*/i)) {
delete Validation.methods[methodName];
}
}

if (this.validator.validate()) {
if (url) {
this.form.action = url;
}
this.form.submit();
}
Object.extend(Validation.methods, nv);
}
}.bind(productAddToCartForm);
//]]>
</script>
</div>

<div class="product-collateral">
<?php foreach ($this->getChildGroup('detailed_info', 'getChildHtml') as $alias => $html):?>
<div class="box-collateral <?php echo "box-{$alias}"?>">
<?php if ($title = $this->getChildData($alias, 'title')):?>
<h2><?php echo $this->escapeHtml($title); ?></h2>
<?php endif;?>
<?php echo $html; ?>
</div>
<?php endforeach;?>

<?php echo $this->getChildHtml('product_additional_data') ?>

</div>
<?php echo $this->getChildHtml('info_tabs') ?> 
</div>

Creating Product Image File (media.phtml)

Media.phtml should be saved in /app/design/frontend/cloudways/w-c/template/catalog/product/view  directory. Here is the code for media.phtml file.

<?php
$_product = $this->getProduct();
$_helper = $this->helper('catalog/output');
?>
<?php if ($_product->getImage() != 'no_selection' && $_product->getImage()): ?>
<div class="product-image-zoom-wrap">
<p class="product-image product-image-zoom">
<?php
$_img = '<img id="image" src="'.$this->helper('catalog/image')->init($_product, 'image').'" alt="'.$this->htmlEscape($this->getImageLabel()).'" title="'.$this->htmlEscape($this->getImageLabel()).'" />';
echo $_helper->productAttribute($_product, $_img, 'image');
?>
</p>
</div>
<p class="zoom-notice" id="track_hint"><?php echo $this->__('Double click on above image to view full picture') ?></p>
<div class="zoom">
<img id="zoom_out" src="<?php echo $this->getSkinUrl('images/slider_btn_zoom_out.gif') ?>" alt="<?php echo $this->__('Zoom Out') ?>" title="<?php echo $this->__('Zoom Out') ?>" class="btn-zoom-out" />
<div id="track">
<div id="handle"></div>
</div>
<img id="zoom_in" src="<?php echo $this->getSkinUrl('images/slider_btn_zoom_in.gif') ?>" alt="<?php echo $this->__('Zoom In') ?>" title="<?php echo $this->__('Zoom In') ?>" class="btn-zoom-in" />
</div>
<script type="text/javascript">
//<![CDATA[
Event.observe(window, 'load', function() {
product_zoom = new Product.Zoom('image', 'track', 'handle', 'zoom_in', 'zoom_out', 'track_hint');
});
//]]>
</script>
<?php else: ?>
<p class="product-image">
<?php
$_img = '<img src="'.$this->helper('catalog/image')->init($_product, 'image')->resize(239).'" alt="'.$this->htmlEscape($this->getImageLabel()).'" title="'.$this->htmlEscape($this->getImageLabel()).'" />';
echo $_helper->productAttribute($_product, $_img, 'image');
?>
</p>
<?php endif; ?>
<?php if (count($this->getGalleryImages()) > 0): ?>
<div class="more-views">
<h2><?php echo $this->__('More Views') ?></h2>
<ul>
<?php foreach ($this->getGalleryImages() as $_image): ?>
<li>
<a href="#" onclick="popWin('<?php echo $this->getGalleryUrl($_image) ?>', 'gallery', 'width=300,height=300,left=0,top=0,location=no,status=yes,scrollbars=yes,resizable=yes'); return false;" title="<?php echo $this->htmlEscape($_image->getLabel()) ?>"><img src="<?php echo $this->helper('catalog/image')->init($this->getProduct(), 'thumbnail', $_image->getFile())->resize(56); ?>" width="56" height="56" alt="<?php echo $this->htmlEscape($_image->getLabel()) ?>" /></a>
</li>
<?php endforeach; ?>
</ul>
</div>
<?php endif; ?>

This is what the end result should look like.

Product Page

With this, you have created your very own product page! Want to own this code? No worries. You can easily get hold of this theme (via the zip file). But, you have to wait for that. I will put a link to the theme file in the final article in the series.

Next up in the series, I will be going through the final steps that will give the complete shape to your theme.

With this series, I hope to benefit the growing community of Magento Front-end Development Beginners. This theme could easily help you in starting your very own ecommerce store on Magento. For the best results, you can host it on the Cloudways Platform for as low as $10. Amazed? Just visit our Cloudways Managed Magento hosting page for more details. If you are already convinced, sign up now for a free trial.

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