Category: Coding

Filtering with Ansible’s selectattr()/rejectattr() when the tested attribute can be absent

Ansible’s selectattr and rejectattr allow filtering of a list of dictionaries based on a specific test being executed against each dictionary’s keys and values. But what if the dictionary is not guaranteed to always have the key being tested actually defined?

Introducing a custom Yast module for importing libvirt configuration files from existing installations

I like fresh, reproducible installs when a new version of your preferred Linux distro (in my case openSUSE) comes out. Ensuring the perceived (!) feeling that a system is a “clean” state is hard enough during its lifecycle already and ensuring it is so after doing an upgrade installation is even harder. That’s why I… Continue reading Introducing a custom Yast module for importing libvirt configuration files from existing installations

Moving from DataObjectManager – GridFieldRecordEditor, GridFieldRelationEditor and usability issues

Recently I’ve been working a lot with the SilverStripe CMS/framework written in PHP (as one could undoubtedly deduce from my earlier post). The context involved porting a custom application from SilverStripe 2.4 to 3.1. Naturally this also involved dealing with the formerly used DataObjectManager module and 3.x’s new ORM and GridField components.