我见过这个问题,但它没有回答我的问题,甚至没有很好地提出它。
我认为最好用一个例子来解释:
class Blah(Document):
someList = ListField(StringField())
Blah.drop_collection()
Blah(someList=['lop', 'glob', 'hat']).save()
Blah(someList=['hello', 'kitty']).save()
# One of these should match the first entry
print(Blah.objects(someList__icontains__all=['Lo']).count())
print(Blah.objects(someList__all__icontains=['Lo']).count())
我认为这会打印1, 0
or 0, 1
(或奇迹般地1, 1
),但它给出了
0
Traceback (most recent call last):
File "metst.py", line 14, in <module>
print(Blah.objects(someList__all__icontains=['lO']).count())
File "/home/blah/.pythonbrew/pythons/Python-3.1.4/lib/python3.1/site-packages/mongoengine/queryset.py", line 1034, in count
return self._cursor.count(with_limit_and_skip=True)
File "/home/blah/.pythonbrew/pythons/Python-3.1.4/lib/python3.1/site-packages/mongoengine/queryset.py", line 608, in _cursor
self._cursor_obj = self._collection.find(self._query,
File "/home/blah/.pythonbrew/pythons/Python-3.1.4/lib/python3.1/site-packages/mongoengine/queryset.py", line 390, in _query
self._mongo_query = self._query_obj.to_query(self._document)
File "/home/blah/.pythonbrew/pythons/Python-3.1.4/lib/python3.1/site-packages/mongoengine/queryset.py", line 213, in to_query
query = query.accept(QueryCompilerVisitor(document))
File "/home/blah/.pythonbrew/pythons/Python-3.1.4/lib/python3.1/site-packages/mongoengine/queryset.py", line 278, in accept
return visitor.visit_query(self)
File "/home/blah/.pythonbrew/pythons/Python-3.1.4/lib/python3.1/site-packages/mongoengine/queryset.py", line 170, in visit_query
return QuerySet._transform_query(self.document, **query.query)
File "/home/blah/.pythonbrew/pythons/Python-3.1.4/lib/python3.1/site-packages/mongoengine/queryset.py", line 755, in _transform_query
value = field.prepare_query_value(op, value)
File "/home/blah/.pythonbrew/pythons/Python-3.1.4/lib/python3.1/site-packages/mongoengine/fields.py", line 594, in prepare_query_value
return self.field.prepare_query_value(op, value)
File "/home/blah/.pythonbrew/pythons/Python-3.1.4/lib/python3.1/site-packages/mongoengine/fields.py", line 95, in prepare_query_value
value = re.escape(value)
File "/home/blah/.pythonbrew/pythons/Python-3.1.4/lib/python3.1/re.py", line 246, in escape
return bytes(s)
TypeError: 'str' object cannot be interpreted as an integer
两个查询都不起作用!
MongoEngine 是否支持某种方式来使用icontains
and进行搜索all
?或者有什么办法可以解决这个问题?
注意:我想使用 MongoEngine,而不是 PyMongo。
编辑:Python 2.7.3 也存在同样的问题。