pymongo使用find（）查询数组总是失败

Question

I've been searching this for about half the evening and I cannot seem to understand or find my error.

I am attempting to connect to a MongoDB and search a table for a specific string. I do not care what field the string is in, only that if either field in the row contains the string it should return the contents of the 'name' field.

I've tried a bunch of different ways of writing this, and I always seem to come up with something along the lines of:

search_for_mapname(mpname):

    # create the MongoDB client and connect to the database
    dbclient = pymongo.MongoClient(dbtoken)

    # check for mpname
    cursor = dbclient.database.maps.find( { 'name': mpname, "$or":[{"aliases":mpname}] } )
    for map in cursor:
        return map['name']
    return "INVALID"

Each row is structured like this:

{ 'name': "ff_2fort", 'aliases': ["2fort", "2", "alias"] }

find() seems to recognize when mpname == maps['name'] but when I input an alias that I know exists, I get "INVALID" every time.

Answer 1

我发现了自己的错误，$或上面的代码无法正常工作，实际上应该这样写：

cursor = dbclient.FortressForever.maps.find( { "$or":[ {"name": mpname}, {"aliases":mpname}] } )