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# -*- coding: utf-8 -*-
class Iterable(list):
Class to iterate among returned objects.
def __init__(self, cls, lst=None, attr=None, auth=None, cypher=None):
if lst is None:
lst = []
self._auth = auth or {}
self._cypher = cypher
self._list = lst
self._index = len(lst)
self._class = cls
self._attribute = attr
super(Iterable, self).__init__(lst)
def __getslice__(self, *args, **kwargs):
eltos = super(Iterable, self).__getslice__(*args, **kwargs)
if self._attribute:
return [self._class(elto[self._attribute], update_dict=elto,
auth=self._auth, cypher=self._cypher)
for elto in eltos]
return [self._class(elto, auth=self._auth, cypher=self._cypher)
for elto in eltos]
def __getitem__(self, index):
elto = super(Iterable, self).__getitem__(index)
if self._attribute:
return self._class(elto[self._attribute], update_dict=elto,
auth=self._auth, cypher=self._cypher)
return self._class(elto, auth=self._auth, cypher=self._cypher)
def __repr__(self):
return self.__unicode__()
def __str__(self):
return self.__unicode__()
def __unicode__(self):
return u"<Neo4j %s: %s>" % (self.__class__.__name__,
def __contains__(self, value):
# TODO: Find a better way to check if value is instance of Base
# avoiding a circular loop of imports
# if isinstance(value, Base) and hasattr(value, "url"):
if (hasattr(value, "url") and hasattr(value, "id")
and hasattr(value, "_dic")):
if self._attribute:
return value.url in [elto[self._attribute]
for elto in self._list]
return value.url in self._list
return False
def __iter__(self):
return self
def single(self):
return self[0]
except KeyError:
return None
def __next__(self):
if self._index == 0:
raise StopIteration
self._index = self._index - 1
return self.__getitem__(self._index)
def next(self):
return self.__next__()
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