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78 lines
2.4 KiB
Python
78 lines
2.4 KiB
Python
"""
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Stub file to work around django bug: https://code.djangoproject.com/ticket/7198
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"""
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from django.db import models
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from django.db.models.query import EmptyQuerySet
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import copy
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class FakeQuerySet(EmptyQuerySet):
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"""Turn a list into a Django QuerySet... kind of."""
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def __init__(self, model=None, query=None, using=None, items=[]):
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super(FakeQuerySet, self).__init__(model, query, using)
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self._result_cache = items
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def __getitem__(self, k):
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if isinstance(k, slice):
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obj = self._clone()
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obj._result_cache = super(FakeQuerySet, self).__getitem__(k)
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return obj
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else:
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return super(FakeQuerySet, self).__getitem__(k)
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def count(self):
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return len(self)
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def _clone(self, klass=None, setup=False, **kwargs):
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c = super(FakeQuerySet, self)._clone(klass, setup=setup, **kwargs)
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c._result_cache = copy.copy(self._result_cache)
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return c
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def iterator(self):
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# This slightly odd construction is because we need an empty generator
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# (it raises StopIteration immediately).
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yield iter(self._result_cache).next()
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def order_by(self, *fields):
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obj = self._clone()
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cache = obj._result_cache
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for field in fields:
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reverse = False
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if field[0] == '-':
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reverse = True
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field = field[1:]
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cache = sorted(cache, None, lambda item: getattr(item, field),
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reverse=reverse)
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obj._result_cache = cache
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return obj
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def distinct(self, *fields):
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obj = self._clone()
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return obj
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def values_list(self, *fields, **kwargs):
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obj = self._clone()
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cache = []
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for item in self._result_cache:
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value = []
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for field in fields:
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value.append(getattr(item, field))
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cache.append(tuple(value))
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if kwargs.get('flat', False) and len(fields) == 1:
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cache = [item[0] for item in cache]
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obj._result_cache = cache
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return obj
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def add(self, item):
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self._result_cache.append(item)
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def remove(self):
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self._result_cache.pop()
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class Node(models.Model):
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id = models.IntegerField(primary_key=True)
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name = models.CharField(max_length=20)
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isMaster = models.BooleanField(default=False)
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isSync = models.BooleanField(default=False)
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