如何将运算符all和icontains的用法与mongoengine相结合 [英] How to combine the usage of operator all and icontains for mongoengine

问题描述

对于mongoengine，有运算符 all 和 icontains 。但是如何结合它们的使用呢？

For mongoengine, there are operators all and icontains. But how can I combine the usage of them?

对于每个项目，我只想与 icontains 匹配，而不是 / code>？我试图使用正则表达式。我工作，但不幸的是，如果我在mongoengine的查询中有多于1个 Q 因为它会尝试 deepcopy 模式对象，但不幸的是 pattern 对象不能深入复制。

Say for each item, I just want to match with icontains but not exact? I tried to use regex. I works but unfortunately it would break if I have more than 1 Q in the queryset of mongoengine. Because it would try to deepcopy the pattern object but unfortunately pattern object can't been copied deeply.

推荐答案

实际上，我建议使用 pymongo ，通过 easy_install pymongo 安装，在pymongo中，您可以尝试：

actually, I recommend using pymongo, install by easy_install pymongo, in pymongo, you could try:

db.collections.find({'$and':[
    {'field A':re.compile('your pattern')},
    {'$ne':{'field A':'not exact word'}}
]})

这里， $ ne 和 $和是本机mongo db运营商，您可以找到更多详细信息 mongodb advnace查询

here, $ne and $and are native mongo db operators, you could find more details mongodb advnace query

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