doc-hex

### Keybase proof

I hereby claim:

  * I am peter-conalgo on github.
  * I am dochex (https://keybase.io/dochex) on keybase.
  * I have a public key whose fingerprint is 4589 779A DFC1 4F33 2753  4EA8 A3A3 1BAD 5A2A 5B10

To claim this, I am signing this object:

doc-hex

# Hack to allow me to type just ClassName[34] and fetch DB object with pk=34
#
from flask.ext.sqlalchemy import _BoundDeclarativeMeta
def _get_by_pk(cls, idx):
    return cls.get(idx)
_BoundDeclarativeMeta.__getitem__ = _get_by_pk