[英]Pymongo, query on list field, and/or
I have a collection with some documents like:我有一个包含一些文档的集合,例如:
{
_id: 5,
vals: [100, 1100, 1500]
},
{
_id: 10,
vals: [1100, 1700]
}
How can I query for documents that have, in vals
field:如何查询在
vals
字段中具有以下内容的文档:
I can use some comprehension magic like:我可以使用一些理解魔法,例如:
g = lambda codes: (
d for d in collection.find() if any(code in d["vals"] for code in codes)
)
g([100, 1700]).next()
Or, for the AND:或者,对于 AND:
g = lambda codes: (
d for d in collection.find() if all(code in d["vals"] for code in codes)
)
g([100, 1100]).next()
This seems a little clunky though if there is some find magic that can be done with the driver.这似乎有点笨拙,但如果有一些可以通过驱动程序完成的查找魔法。
yourmongocoll.find({"vals":1100})
yourmongocoll.find({"$or":[ {"vals":1700}, {"vals":100}]})
yourmongocoll.find({"$and":[ {"vals":100}, {"vals":1100}]})
i would recommend reading Mongodb Advanced queries我建议阅读Mongodb 高级查询
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