[3] As a user, I want collections and there feed to be saved instantly upon changing to never lose any changes

If a collections is changed, the change should be saved instantly. Collections will be saved than also when the app crashed.

ToDo

Custom:

• Implement function saveCollection(_ collection: Collection) in model
• Call method whenever any relevant attribute gets changed (Create/delete collections, add/remove feeds)
• Call method as last action in original constructor
• Remove Collections from the original save method

Defaults:

• Report Changes in UML
• Report Changes in Wireframes

Acceptance criteria

Custom:

• Every change on the collection gets saved, also if the app "crashed"

Defaults:

• Naming Convention for Classes, Functions and Variables are met
• Comments are sufficient

Effort:

3