/**
  * Get all the user's workouts with the contents of each workout
  * @return mixed
  */
 public function getWorkouts()
 {
     $workouts = Workout::forCurrentUser()->get();
     //get all the series that are in each workout
     foreach ($workouts as $workout) {
         $workout->contents = $workout->series()->select('exercise_series.id', 'name')->orderBy('name', 'asc')->get();
     }
     return $workouts;
 }