Example helper method

Added helper method to Practical 1 Part 4
Started Practical 2

Practical 2 started and db file destroyed
Practical 2 update

 - data format and CSV files ready
Fixed non-working services

Fixed the problem where all of the admin services broke
Recreated the Practical2 package

After database migration problems have been fixed.
Practical 2 up to database access

Pulling data from the database and displaying.
Session id problem.
Fully working example for Practical 2
Practical 2 Done
Merge branch 'dev'