Parse relationship from url with trailing slashes

[vladmunteanu]

After issuing a request to an endpoint like /<resource_a>/<id>/relationships/<resource_b>/ , the resource_b field is not identified as a relationship.
I'm pretty sure the following line is causing the issue:

flask-rest-jsonapi/flask_rest_jsonapi/resource.py

Line 506 in ad3f90f

relationship_field = request.path.split('/')[-1].replace('-', '_')

This is because the last item of request.path.split('/') is actually an empty string:

>>> s = '/api/users/5/relationships/organization/'
>>> s.split('/')
['', 'api', 'users', '5', 'relationships', 'organization', '']
>>> s = '/api/users/5/relationships/organization'
>>> s.split('/')
['', 'api', 'users', '5', 'relationships', 'organization']

[coveralls]

Coverage increased (+0.006%) to 92.078% when pulling 133aa44 on vladmunteanu:master into ad3f90f on miLibris:master.

[vladmunteanu]

You can view a minimal example here: https://github.com/vladmunteanu/apiex-flask-rest-jsonapi
For this project, the relationship management will not work because of this issue.

[akira-dev]

I think it is not good because you split on a list so it doesn't works ?

[vladmunteanu]

Thanks for checking this @akira-dev, but honestly i wasn't right to begin with. That kind of URL should not have a leading slash.