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"""Managers for multi cardinality vertex properties"""
class VertexPropertyManager:
def __init__(self, data_type, vertex_prop, card):
self._data_type = data_type
self._vertex_prop = vertex_prop
self._card = card
self._mapper_func = vertex_prop.__mapping__.mapper_func
@property
def mapper_func(self):
return self._mapper_func
def __call__(self, val):
results = []
for v in self:
if v.value == val:
results.append(v)
if len(results) == 1:
results = results[0]
elif not results:
results = None
return results
class ListVertexPropertyManager(list, VertexPropertyManager):
def __init__(self, data_type, vertex_prop, card, obj):
VertexPropertyManager.__init__(self, data_type, vertex_prop, card)
list.__init__(self, obj)
self._vp_map = {}
def vp_map(self):
return self._vp_map
def append(self, val):
vp = self._vertex_prop(self._data_type, card=self._card)
vp.value = self._data_type.validate(val)
super().append(vp)
class SetVertexPropertyManager(set, VertexPropertyManager):
set.__init__(self, obj)
def add(self, val):
super().add(vp)
goblin-ogm /
goblin
