Magento

Making use of Magento getSingleton method

In one of my previous articles I showed you how to use getModel and getData methods in Magento. Although we should not put those to methods at the same level, since I’d say the getModel is a bit more higher. Higher in sense, you first use the geModel to create the instance of object then you use getData to retrieve the data from that instance. I have said it before, and I’m saying it again; Magento is a great peace of full OOP power of PHP. It’s architecture is something not yet widely seen in CMS solutions.

One of the architectural goodies of Magento is it’s Singleton design pattern. In short, Singleton design pattern ensures a class has only one instance. Therefore one should provide a global point of access to that single instance of a class.

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Retrieving product information in Magento

Shop Supplies Product Info

If you are developing Magento template sooner or later you will need to obtain some product information and rearrange it to fit your template. One of the most useful function while working with Magento is Mage::getModel($modelClass).

Here is how you would use it to retrieve Magento product information Mage::getModel(‘catalog/product’);.

This ‘catalog/product’ relates to app/code/core/Mage/Catalog/Model/Product.php file. If you open that file you will see it’s actually a class named Mage_Catalog_Model_Product. That same class is extending the Mage_Catalog_Model_Abstract class meaning it inherits all of it’s methods.

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Figuring out Magento object context

One of the problems working under the hood of the Magento CMS is determining the context of $this. If you are about to do any advanced stuff with your template, besides layout changes, you need to get familiar with Magento’s objects (classes).

Let’s have a look at the /app/design/frontend/default/default/template/catalog/product/view.phtml file. If you open this file and execute var_dump($this) your browser will return empty page after a short period of delay. By page I mean on the product view page; the one you see when you click on Magetno product. Experienced users will open PHP error log and notice the error message caused by var_dump().

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Manual creation of Google Sitemap in Magento

Most of you probably know this, but let’s define what the sitemaps are. Sitemaps are a simple way for site creators to give search engines the information about pages on their site that are available for public. Basically, those are just 1 or more XML files that lists URLs for a site along with additional meta informatio about each URL (like last update, how often it changes, its importance relevant to other pages). With this in mind, search engines can be more clever while crawling the site. Click here see how sitemap of this site looks like.

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What makes Magento so hard to learn

Most of us in ecommerce application development have already heard of Magento. Some would call it new ecommerce killer app. I myself stand with that statement for many of reasons. However I would like to call it with one more name, developer killer app. This developer killer is what I literally had in mind. Magento is currently one of the most difficult PHP systems out there a developer could learn and master.

So, what exactly makes Magento so hard? Short answer would be the lack of good, and I mean really good IDE studio. You know, like the one .Net guys and girls have, something like Visual Studio. Yea, here I go again giving praises to Visual Studio and monopolistic Microsoft although I make my living using open source PHP. I should really be a shame, right? Well, no!

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Magento upgrade and broken templates

Few days ago I had a task of upgrading Magento ver. 1.0.19870.1 to Magento ver. 1.1.1. When you are doing something like that on your own development machine, you probably don’t care much about backing up your database and installation folder. On my development machine I had a clean install of version 1.0.19870.1 where I merely entered few products, categories and other minor things. I had no other theme besides custom one. Before I was ready to do a update to real, shared, remote development machine I decided to test the update on my machine.

Performing local update went smoothly as it gets. On my surprise, everything work as it should be. I was convinced I can go and make upgrade to remote development machine. I had no SVN setup to my remote machine so all my code transfer was done trough FTP. Basically if you’re performing your upgrade trough full archive file all you need to do is copy content from archive to your root Magento installation and overwrite everything you’re asked to overwrite. Sound’s easy, doesn’t it? Well it is easy and your upgrade should go clean and without any glitch, that is if you are using built in theme. If you’re using a custom made theme, chances are you’re rune into trouble like i did.

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Designer’s Guide to Magento PDF download

After many developed CRE Loaded’s online stores and watching Magento development progress for quite some time, I decided it was time to use Magento with my next client. My starting point for development was official Designer’s guide. I’m the type of guy who likes to have documents nice&clean, so I tried to print it but print was a mess. That’s when I decided to create PDF of the official documentation for easy print. This is probably the best starting tutorial for creating a fresh new Magento template.

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