Clickhouse is an open source column-oriented database management system built by Yandex. Clickhouse is used by Yandex, CloudFlare, VK.com, Badoo and other teams across the world, for really big amounts of data

While working on new Qwintry.com tasks we needed to provide our operators the interface to rotate uploaded images (and I wanted to rotate the original image file). Surprisingly, I could not find

I was not posting to the blog for a long time, and finally it’s time to share my experience with new project. This post will also cover some badly structured thoughts about

In 2013 I was invited by Packt Publishing to play a role of technical reviewer in one of their books.Just got my sample of the book Premium Drupal Themes by mail.It

We've decided to switch to Symfony2 development in July 2012, if I'm not mistaken - after 7 years of (mostly) Drupal development. There were reasons to do that:1. Not-too-great experience with high

Lot's of people will be surprised (or shocked, when it happens in production) when they see that mysql can work like this:Query: SELECT transaction_id, amount FROM transactions WHERE amount>20.

I've recently created USPS tracking module for Drupal, so Qwintry.com users could get notifications when their international packages change state. I've used queue operations to build requests to USPS API by cron,

When you have core "image" field on your node type and you want to output "title" (or "alt") of this image just under the image thumbnail as text - you can use imagecaptionformatter

When you create Drupal code for 7 years, it's easy to mistakenly assume that you know everything regarding such basic things as theme_preprocess_node() and drupal_get_form() functions. And that is

We are now developing big Drupal 7 project where users have profiles with lots of fields. They also have a node tied to them ("My story") which is created during registration.Initially, these

uc_file module that allows selling files in Ubercart is definitely not perfect in terms of API, but it is a nice piece of functionality. We've just finished creating one e-book store which

In Drupal 7, it's easy to show calendar (ui.datepicker) date selector to user. (it's not hard in Drupal 6, too - but in d6 you need to enable http://drupal.org/project/

In Drupal 7, the direct access to entity fields (CCK in d6) is different. In Drupal 6 you write:<?php $field_val = $node->field_yourfield[0]['value']; ?> in Drupal 7

Today I've made another decision to postpone using Commerce in our project where customer needed simple e-shop. I've actually made such decisions several times already, and that makes me feel unhappy. I would

I was not updating my blog for a while - it's summer here :) I've just returned back from my business trip to US, Alaska, where I helped guys from shipito.com killer to

While everyone is now aware of SQL injections and 99% of Drupal developers now use placeholders in their db queries, some of other important security aspects are often forgotten.Today I've encountered another

It's so exciting to see how such huge improvements happen. I've just updated one of my 7.x websites to latest dev of views and ctools, and noticed that Views UI got major

I was tearing my hair out over mysterious bugs in my recent Drupal project. Our complex views pages, which used Views custom field extensively, were constantly breaking. The php field output could break

I've just created EMS Russian Post shipping module. It will be useful for store owners in Russia. http://drupal.org/project/uc_emsThe module supports delivery price calculation outside Russia (and in Russia,

There were no updates to our themes section for a while. We were busy building big customer projects, but at last, we managed to take a break to bring our own products to

Ubercart has its own CA (Conditional Actions) module which purpose is to execute  some actions when certain events happen -- you can find CA configuration screen on admin/store/ca/overview. The most