Apparently Eve is now stricter in checking against MONGO_QUERY_BLACKLIST,
and blocks our use of $regex when getting child nodes. See
`jstree.py::jstree_get_children()`
String concatenation is bound to mess up; in this case it was producing
double slashes instead of single ones when `BLENDER_ID_ENDPOINT` ends in
a slash. Since URLs generally end in a slash, this should be supported.
It looks like with the new Eve (or one of its dependencies) empty lists
aren't stored any more; rather than storing `{'org_roles': []}`, it skips
the `'org_roles'` key altogether. Not sure what caused this, as it was
mentioned in neither the Eve nor the PyMongo changelog.
We now support both the old coerce=markdown and the new validator=markdown.
Probably support for the old can be removed, but I'm keeping it around
just to be sure.
The post_internal function does `document = validator.document`, replacing
the to-be-posted document by the copy that Cerberus made (and which we
cannot add keys to because it iterates over the keys and the dict size thus
isn't allowed to change).
I hope this doesn't break other validators who expect to be able to write
to `self.document`.
Eve's Validator has not only a validate() function, but also
validate_update() and validate_replace(). Those set
self.persisted_document, so if that attribute exists we just use it.
Custom types became rather useless in Cerberus 1.0 since the type checker
is cripled (doesn't know field name, cannot return useful/detailed error
messages). Instead we use a validator now.
Now BLENDER_ID_ENDPOINT is used for the Blender ID OAuth config,
and it's directly accessed when building requests for Blender ID token
validation (without using utility functions).
