Posts Tagged ‘Magento’

Benchmarking Zend_Cache backends for Magento

October 3rd, 2011

The Zend_Cache module from the Zend Framework is a nice piece of work. It has a slew of programmer-friendly frontends and a respectable set of backends with a well-designed interface. I love the a-la-carte approach, but I am only really interested in the Zend_Cache_Core frontend and the backends that support tagging since that is what is required by Magento. This begs the question, which backend should you use? While I have my own opinion on that matter (ahem, Redis. -post coming soon-ish), I wanted a reliable way to test Zend_Cache backend performances so I wrote a benchmark! This benchmark was both forked from and inspired by the benchmark found in Vinai Kopp’s Symlink Cache. It uses Magento’s core/cache model rather than Zend_Cache_Core directly so a Magento (or Magento-lite) installation and bash are the only requirements.

The purpose of this post is not to provide a bunch of cache backend benchmarks, but rather to simply introduce my benchmark code in the hopes that others conduct their own tests and hopefully publish their findings. A link to this post is appreciated. Also, if there are any criticisms of the benchmark I’d love to see a pull request. :)

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Magento , ,

The Right Way to Optimize Apache’s .htaccess Files

June 30th, 2010

While researching Magento performance optimizations you have probably already read about how to optimize Apache’s configuration by moving your configuration directives into the configuration files and out of the .htaccess files. Of course you need root to do this, but assuming you can, there are still very very wrong ways to do this that will result in no real performance gains, leave gaping security holes, and consume more time than necessary. Read on, a handy script for solving these problems and before and after performance benchmarks to prove the gains are included.

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Module Manager Update, now on Google Code!

January 31st, 2010

I recently updated Module Manager (first post) to support nested modules and renamed the .modman definitions file to simply modman for easier editing in IDEs. To top it off I am officially releasing it to the public under the Apache License 2.0 so that you may start using it in your own projects.

Additionally, Module Manager now has it’s own home on Google Code so check it out! (pun intended)

Here is an example of the new nested modules feature:

# My template files
skin               skin/frontend/my/default
design             app/design/frontend/my/default

# Import Colin_HotDealz module
@import            modules/Colin_HotDealz

Magento, Programming , , ,

Module Manager – for when svn:externals just doesn’t cut it.

October 17th, 2009

Update 1/30/2010:
Added nested modules, renamed .modman file to modman, released under Apache License 2.0, and hosted on Google Code.

This project was inspired by my recent Magento development work so I’m not sure how much application it has outside of that, but if you’ve ever wanted to use svn:externals with individual files (you can’t btw) then this is the next best thing (and therefore the best thing). Perhaps some other VCS supports this functionality natively , if you know of it please clue me in. I’ve used git and bazaar but still like the simplicity of subversion for small, non-distributed projects.

Magento’s source code is split among several different groups of files: code, design, locale, skin, libs, etc (as in config), etc.. (as in etcetera)
You really cannot avoid ever having to mix a file in here or there which means svn:externals won’t cut it. Besides, svn:externals won’t let you make one commit from all of your externals so to commit your changes you have to do it once for each folder which makes your commit history nearly useless. Enter “modman”, my Magento module manager. While it could be used for deployment it is primarily geared towards developers. Here is how it works:

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Magento, Programming , ,

Yet Another “Hiding Out-Of-Stock Products” Update

September 28th, 2009

Update: Bug fix

It turns out that when layered navigation indexes are refreshed the website_id is 0 which causes the filtered results to be empty which makes layered navigation disappear. The fix is to simply place an if statement around the filter dependent on the website id no being 0. The Magento Connect module has been updated with this fix (0.3.1).

Ok, I think this will finally be the last update to this module… I’ve learned a lot about Magento since the first version of this module, and think I finally did it right this time. This update adds support for advanced search (thanks saho for the bug report) and also every other aspect of the store I could find.
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Magento, Programming

Hiding “Out of Stock” items in Layered Navigation

July 14th, 2009

Updated 9/28/09

See the latest post in this series: Yet Another “Hiding Out-Of-Stock Products” Update, for an update that fixes advanced search, tags, up-sells, cross-sells, etc..

Updated 7/23/09

Updated once again to add support for filtering search results. (Added CatalogSearch/Model/Layer.php, moved Model/Layer.php to Catalog/Model/Layer.php, updated config.xml)

My previous post about “Hiding Out of Stock Items in Magento” had one pretty major downfall, in that it did not handle the product counts in the layered navigation. In response to a forum post regarding this I looked into fixing my original solution and have come up with a more concise and complete approach which I present now as a replacement to my original InStockOnly module.

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Magento, Programming

Adding Minimal Price To Any Product Collection in Magento

June 4th, 2009

There are many “Bestseller“, “Most Viewed”, and other front-page modules available for Magento. Those that use the Reports module to maintain good performance have the slight drawback that they do not inherit the catalog/product_collection resource model and it’s handy addMinimalPrices() function. This function adds the fields necessary for the getPriceHtml($product, TRUE) function to work, which prints out the “As low as” text for products that have tiered pricing. This is a must-have feature if you use tiered pricing, so here is how you can make getPriceHTML($product, TRUE) work with any collection of products:

$productIds = array_keys($_products->getItems());
$minimalPriceModel = Mage::getResourceModel('catalogindex/price');
$minimalPrices = $minimalPriceModel->getMinimalPrices($productIds);
foreach ($minimalPrices as $row) {
  $item = $_products->getItemById($row['entity_id']);
  if ($item) {
    $item->setData('minimal_price', $row['value']);
    $item->setData('minimal_tax_class_id', $row['tax_class_id']);

There you have it!

Magento ,

Hiding “Out of Stock” Items in Magento

June 2nd, 2009

Updated 7/14/09

This module has been replaced with one that correctly updates the layered navigation counts. See the new version here.

Updated 7/3/09

The in-stock-only module now works properly when multiple websites are in use.

Updated 6/26/09

The in-stock-only module now works with configurable products.


Magento has several criteria for determining if an item should be visible in the store, but one of these is not whether or not the item is in stock. Magento can manage your stock and will set your stock status to “Out of Stock” for you, but what if you want these out of stock items to be hidden from the store.. automatically? Also, in my case I do not want to “disable” the item because the inventory management system will then ignore it. Turns out this was much more difficult to figure out than I expected it to be but the end solution was quite simple.

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Magento, Programming ,