Listening to msonnabaum's talk entitled "We're getting OOP wrong and there's still time to fix it was refreshing to me, because it pointed out how D8's OOP implementation as it currently stands is missing out on many of the key benefits of OOP, and that's probably partially responsible for all the frustrated developers at present.
Views is a fantastic module that allows you to build complex database queries through configuration. However, I've found that a weird variation of the 80/20 rule applies to views: 80% of the time, the configuration will get you 100% of what you want, but 20% of the time, it will only get you 80% of what you want. That's where the views hooks are handy, especially hook_views_query_alter. I've used this many times - adding a where clause, modifying a field, etc.
$rosie = new RoseBush; $rosie->plant(); $rosie->shred_flesh(); $rosie->fertilize(); $rosie->weed(); $rosie->water();
