Goal: Restrict content access through username and password entry. 1: Apache Utilities Package First, update your server’s package index: sudo apt updateCheck if the utilities package exists in your environment by executing the command dpkg --get-selections | grep apacheResponse: apache2-utils install libapache-pom-java installSo it exists.  But what do you do if it doesn't exist? How come I need to install apache-utils?  To restrict access you will be using a utility called...

I had the issue where I needed to filter an array list by a specific column.  In my instance, the column is language.  To be able to reduce the query to the language column the code required is levels = selectedCategory?.levels.filter("language = %@", language)Language can be any string, in this instance for me language is a two alpha character such as 'fr', 'en' or 'de'. Further to this you can continue to chain this query through including sort as per levels =...