2011/9/12 Daniel Itaboraí <[email protected]> > It seems to me that it would be useful to be able to declaratively specify > this tree like schema to validate complex documents, something like the > following > > <snip>
> > Is this sort of thing useful? And more importantly, is there anything > that already does this better? > CouchDB-python[1] has a mapping module[2]. Mikeal's couchdb-pythonviews[3] is a python view server that supports validation functions. Depending on your needs, you might accomplish the job with just these. For example, if you're okay with accepting documents where all the fields coerce to their expected types even if they were not exact matches, you could just use the couchdb.mapping.Document.wrap on input to your validation function. This would, for example, generate exceptions when a DateField fails to parse as a date. If you need something more strict, like rejecting JSON numbers where you expect strings, you could probably add python type information to the mapping classes and a validate() function to the base class. Hope that's enough to get you started. I'm not aware of anything like this that exists already, but if it does hopefully the list will chime in. [1] https://code.google.com/p/couchdb-python/ [2] https://code.google.com/p/couchdb-python/source/browse/couchdb/mapping.py [3] https://github.com/mikeal/couchdb-pythonviews > Thanks, > Daniel >
