[fix] creating identifier from url in relatedResource

[djarecka]

I've modified to_datacite, so it should try to get DOI identifier from identifier that has form of url.

I'm using some assumption about doi from odf.io and biorxiv.org, not sure if they are always right...

@bendichter - could you point me to datasets/metadata that I could test this fix.

addresses issue from dandiarchive: dandi/dandiarchive-legacy#843

[codecov]

Codecov Report

Merging #78 (c98996f) into master (3696446) will decrease coverage by 0.94%.
The diff coverage is 36.95%.

@@            Coverage Diff             @@
##           master      #78      +/-   ##
==========================================
- Coverage   90.13%   89.19%   -0.95%     
==========================================
  Files          13       13              
  Lines        1318     1342      +24     
==========================================
+ Hits         1188     1197       +9     
- Misses        130      145      +15     

Flag	Coverage Δ
unittests	89.19% <36.95%> (-0.95%)	⬇️

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Impacted Files	Coverage Δ
dandischema/datacite.py	51.40% <0.00%> (-4.73%)	⬇️
dandischema/tests/test_datacite.py	46.51% <54.83%> (+2.84%)	⬆️

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[djarecka]

@bendichter -pinging

[bendichter]

@djarecka I don't know if there are any dandisets with improperly formatted DOIs. I think I fixed them manually so that publication could go through. You could try this yourself though. See if it works on e.g. http://purl.obolibrary.org/obo/UBERON_0001384

[djarecka]

wasn't sure how to use the website here, but I added some basic unit tests.