Technical questions

WissKI and Views for Developers

Drupal views is a bit of a Drupal in a Drupal. It has its own (entity) query, its own fields, ... This blog (part 1+2) helped me a bit to understand what's going on in views and how to implement views for a non-SQL-based entity type. Also, the EntityFieldQuery Views Backend module provides valuable code. Unfortunately, the D8 branch is currently defunct/not properly migrated.