使用mongo的原始包进行部分匹配 [英] Partial matches using mongo's primitive package

问题描述

我正在使用Mongo的 Primitive 包来根据提交的内容获取bson值.这是我目前正在做的

I am using Mongo's Primitive package to get a bson value based on what was submitted. This is what I am currently doing

school = "Havard"
value = primitive.Regex{Pattern: school, Options: ""} 

这只会匹配 Havard 的bson值，如何使此正则表达式不区分大小写并使其匹配，例如 hava

This will only match bson values that are Havard, how do I make this regex case insensitive and make it match for example, hava

总而言之，如果我使用 hava 进行搜索，我也应该获得 Havard

In all, if I use hava for a search, I should also get Havard

推荐答案

表达式 primitive.Regex {Pattern:school} 也会匹配子字符串，但不区分大小写.使用"i" 选项使其不区分大小写:

The expression primitive.Regex{Pattern: school} matches substrings too, but it's not case insensitive. Use the "i" option to make it case insensitive:

value = primitive.Regex{Pattern: school, Options: "i"}

还请注意，如果 school 的值包含特殊的正则表达式字符，则可能会给您带来意外的结果或错误.所以最好用例如使用 regexp.QuoteMeta() :

Also note that if the value of school contains special regexp characters, that might give you unexpected results or errors. So best is to quote it with e.g. using regexp.QuoteMeta():

value = primitive.Regex{Pattern: regexp.QuoteMeta(school), Options: "i"}

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