Gergely Polonkai

developer, systems engineer and administrator

  1. First impressions of Windows 8

    Many of you may know my commitment to Linux and Open Source Software. But this doesn’t mean I hate proprietary software like many others do. I think everything has its own place in the world, and this goes for software as well.

    A few days ago I got my …

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  2. SWE-GLib final release

    Few of you may know that I’m interested in astrology. About two months ago I have decided to create an astrologers’ software for the GNOME desktop. Since then, I have contacted Jean-André Santoni, who created a software called Astrognome some years ago. We exchanged some e-mails, and after several …

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  3. Renaming a Symfony 2 bundle

    Today I’ve realised that the name I gave to one of my Symfony 2 bundles should be something else. To rename a bundle, one must do four things (at least).

    1. Change the namespace from Vendor\OldBundle to Vendor\NewBundle in every PHP class (sounds like pain? It is…)
    2. Change …
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  4. Dvorak and me

    A few months ago I have decided to switch to the Dvorak layout. After using QWERTY (well, QWERTZ, to be precise) for almost 17 years, it was a hard decision, but now I think it worthed the try. I started with the UK (Dvorak with UK punctuation) layout, and in …

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  5. Haversine in MySQL

    Just insert it in your database, feed them two Google coordinates, and you get the distance in kilometres. If you happen to need it in miles, change the constant 12756.200 in the RETURN row to 7922.6 instead.

    CREATE FUNCTION `haversine` (lng1 FLOAT, lat1 FLOAT, lng2 FLOAT, lat2 …
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