boyron

/**
 * @file: MY_MODULE.views.inc
 *
 * Implementation of hook_views_query_alter().
 * 1. Resolves conflict between contextual filter and regular filter (topic id, sub topic).
 * Both refer to same database field, so merge them in one 'where' clause instead of two that Views comes up with.
 * 2. By default, show all results from a topic and its sub-topics. 
 * [If a document is tagged with a sub-topic but not its parent topic, it was not shown in the default result.]
 * @param view $view
 * @param views_plugin_query_default $query