contexts!

contexts!

zurückzuführen.

zurückzuführen.

added security check that checks if user can see the exercise he is liking and added an index on exercise_id to likes table

added security check that checks if user can see the exercise he is liking and added an index on exercise_id to likes table

added GitlabService.java to offer basic gitlab api functionalities like check if repo exists etc. , added check in StatisticsResource to avoid people sending get requests with IDs which not exist and therefore create lots of trash entities