def status(self):
        docs = {'updated'  : [],
                'committed': [],
                'to_commit': []}

        row = self.db.internal.find_one({'_id': 'last_sync'})

        if row and 'update' in row:
            for id in row['update']:
                docs['updated'].append(self.get(id, deleted=True))

        if row and 'commit' in row:
            for id in row['commit']:
                docs['committed'].append(self.get(id, deleted=True))

        to_commit =  self.get_docs_to_commit()
        for row in to_commit:
            doc = Document(**row)
            docs['to_commit'].append(doc)
        return docs
def _model_ready_for_local_init(self, sess):
    """Checks if the model is ready to run local_init_op.

    Args:
      sess: A `Session`.

    Returns:
      A tuple (is_ready, msg), where is_ready is True if ready to run
      local_init_op and False otherwise, and msg is `None` if the model is
      ready to run local_init_op, a `String` with the reason why it is not ready
      otherwise.
    """
    return _ready(self._ready_for_local_init_op, sess,
                  "Model not ready for local init")