def __init__(self, left, right, op):
from glue.core.data import ComponentID
self._left = left
self._right = right
self._op = op
from_ = []
if isinstance(left, ComponentID):
from_.append(left)
elif isinstance(left, ComponentLink):
from_.extend(left.get_from_ids())
elif not isinstance(left, numbers.Number):
raise TypeError("Cannot create BinaryComponentLink using %s" %
left)
if isinstance(right, ComponentID):
from_.append(right)
elif isinstance(right, ComponentLink):
from_.extend(right.get_from_ids())
elif not isinstance(right, numbers.Number):
raise TypeError("Cannot create BinaryComponentLink using %s" %
right)
to = ComponentID("")
super(BinaryComponentLink, self).__init__(from_, to, null)
def _toid(arg):
"""Coerce the input to a ComponentID, if possible"""
if isinstance(arg, ComponentID):
return arg
elif isinstance(arg, str):
return ComponentID(arg)
else:
raise TypeError('Cannot be cast to a ComponentID: %s' % arg)
def _load_component_id(rec, context):
return ComponentID(rec['label'], rec['hidden'])