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Category: Programming Quickies

Back in they day, I ran a Tumblr blog named Magento Quickies where I’d post shorter, less in-depth posts about my travels through Magento’s source code. This Programming Quickies categories is the successor to that Tumblr blog. You’ll find all the old Magento Quickies content here, as well as new short posts about programming in general.

This section has its own RSS feed, the old Magento Quickies feed should should be redirecting, and we’re cross posting notifications for new posts over to magento-quickies.tumblr.com. In other words, you shouldn’t need to know any of this, but the duct tape that keeps the internet held together isn’t aging well, so your mileage may vary.

Below you'll find all the Programming Quickies articles on the site.

Symlinks with Templates in CE 1.6

Magento Version: 1.6.rc1+ I just downloaded the release candidate for Magento 1.6, and I noticed a change that seemed like a regression, but a little digging made me realize it was something else. A lot of Magento developers (meaning me) like keeping their custom phtml files somewhere other than the the standard add/design/frontend file [...]

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One Line Observers

I’ve started creating single line observers like this <?php class Mycompany_Mymodule_Model_Observer { public function someMethod($observer) { Mage::helper('mycompany_mymodule/observer') ->someMethod($observer->getCustomer()); } } The logic is punted to a helper class. This way the helper receives only the objects it needs [...]

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SQL Headquarters

There’s more sophisticated ways of logging and profiling SQL in Magento these days, but sometimes it’s still easier and quicker to drop down to the abstract Zend adapter and log your queries with a few discrete calls to Mage::Log Almost every INSERT, UPDATE, SELECT, and DELETE goes through the methods in [...]

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We have an extension that uses Ajax to change what shipping rates are shown in a weekly date/time grid @webshopapps, in response to my question “Hey magento people, are there are any extensions (free/paid) that add Ajax features to the checkout page?”

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PHP Patterns in Magento

In many programming languages, especially the less strictly typed ones, a common coding pattern starts to emerge. $thing = $this->getSomeThing(); if($thing) { //do something with the thing } Without a compiler to catch methods returning what they shouldn’t, a developer is forced to sanity check return values from methods before [...]

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Editing Email Templates

Magento Version: 1.5.0.1 I’m not sure when this feature was added. It’s there in 1.5.0.1 and might be in previous version. The phtml template file for your system emails are located in app/locale/en_US/template/email/ However, you don’t want to edit these files. Instead, go to System -> Transactional Emails This UI [...]

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404 Debugging

Magento Version: 1.4.2 I’ve found that most of my route based 404 problems in Magento can be traced a misnamed controller file and/or class. Adding some debugging to the standard router’s _validateControllerClassName method often point to the problem. In 1.4.2 you can find this file here.

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sales_model_service_quote_submit_before, sales_model_service_quote_submit_success, sales_model_service_quote_submit_after. All of these are in Sales/Model/Service/Quote.php in submitOrder() method. Zoran Lazarevski, when asked What event(s) are you using to “do something” after checkout/order-creation, regardless of method?

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sales_model_service_quote_submit_before, sales_model_service_quote_submit_success, sales_model_service_quote_submit_after. All of these are in Sales/Model/Service/Quote.php in submitOrder() method. Zoran Lazarevski, when asked What event(s) are you using to “do something” after checkout/order-creation, regardless of method?

astorm