Docs wrapped by _wrap_row from a view cannot be deleted, KeyError

[rdbisme]

import couchdb
from couchdb.mapping import Document

db = couchdb.Server().create('test')
mydoc = Document()
mydoc.store(db)

docs = db.view('_all_docs', wrapper=Document._wrap_row)
mydoc_ = docs.rows[0]
db.delete(mydoc)

Raises KeyError: '_rev'

The easiest solution I found is (mappings.py):

    @classmethod
    def _wrap_row(cls, row):
        doc = row.get('doc')
        if doc is not None:
            return cls.wrap(doc)
        data = row['value']
        data['_id'] = row['id']
        data['_rev'] = data['rev']  # <=====
        return cls.wrap(data)

even if it seems a bit hacky.
Is this an intended behaviour?

[djc]

That seems like a totally sane fix. Do you want to submit a pull request, ideally with a quick unit test for this?

[rdbisme]

@djc Ok! I will do as soon as possible. :)

[djc]

@rubendibattista did you have a chance to look at this?

[rdbisme]

@djc The proposed solution breaks other two unit tests in the couchdb.mappings module. I hadn't chanche to see which is the problem there. I'll work on that as I can ;)