Course Offering trigger handler/TDTM for course delivery method
|REDU - Admin
|Related RIO Education Settings
When a new Course Offering is inserted and its Course Delivery Method is not set, this class automatically sets it to the Default Course Delivery Method for the Course.
Note that if the Default Course Delivery Method is 'Multiple', this class will cause an error. In this case, the Course Delivery Method must be selected manually.
To auto update value and also prevent Default Course Delivery Method to be 'Multiple'.