Natureshadow / OSMAlchemy

            return ("==", key, value)

        else:

            return None

    elif isinstance(clause, Grouping):

        # Ungroup by simply taking the first element of the group

        # This is not correct in general, but correct for all documented

        # use cases.

        return _where_to_tree(clause.get_children()[0], target)

    else:

        # We hit an unsupported type of clause

            elif clause.left.name == "value":

                value = clause.right.value

        # Check if we got only a key, a key and a value or neither

        if key and not value:

            return ("has", key, "")

        elif key and value:

            return ("==", key, value)

        else:

            return None

    elif isinstance(clause, Grouping):

        key = ""

        value = ""

        for clause in conditionals:

            if clause.left.name == "key":

                key = clause.right.value

            elif clause.left.name == "value":

                value = clause.right.value

        # Check if we got only a key, a key and a value or neither

        if key and not value:

        try:

            # Try to get the real conditionals from this weird statement

            conditionals = (clause.get_children()[0]._whereclause.clauses[1].

                get_children()[0].get_children()[0]._whereclause.clauses[1].clauses)

        except:

            # Simply return None if we got something unexpected

            return None

        key = ""

        value = ""

        for clause in conditionals: