Edit and delete relationship

[jlaksana]

Description Create new endpoints to edit and delete relationships.

Acceptance Criteria DELETE relationship/:id

PUT relationship/:id

• can edit target, source, labels, multiplicity
• also edit the source and target handle position

Additional Information Figure out the best way to initiate editing and deleting an edge.

[jlaksana]

Two possible ways to delete: del button or add to edit modal a trash icon button To edit a relationship, double click on the edge

[jlaksana]

delete relationship: https://github.com/jlaksana/UML2Code/commit/b2ee2381fa1dcf36e22e7d71bdfb72e75c39bf5b

[jlaksana]

Delete edges with "Backspace" key. Will add a delete button to the modal. Nodes will support this as well. Double click an edge to open an edit modal

[jlaksana]

Found a way to create a toolbar just like I did with nodes. Delete has been handled. For edit, we need to do a couple of things. I think there is an advantage to creating a separate endpoint for editing handles of an edge from editing the content of the edge. There are certain validations that need to happen that are unique to either case. We also should make a separate modal for editing relationships because I don't think we should allow a user to change the relationship type after creating it. We should also store the source and target names so that we can access it in the edit modal.

[jlaksana]

https://github.com/jlaksana/UML2Code/commit/8d29c273e83d377370518c3c66b3e37b83ce561a Created a new get endpoint for a single relationship. This is used to populate the edit modal