比较字符串ID与BSON :: ObjectId [英] Compare string ID to BSON::ObjectId

问题描述

我有一个由BSON::ObjectId类型组成的数组，我希望它与某些ID作为字符串进行比较.

I have an array of made up of type BSON::ObjectId and I want it to compare against some IDs as strings.

if my_array_of_BSON_ObjectIds.include?(@my_id_as_a_string)
   # delete the item from the array
else
   # add the item to the array as a BSON::ObjectId
end

这是行不通的，因为类型不同，我可以将字符串转换为BSON::ObjectId吗?如果可以，怎么办?

This is not working as the types are different, can I turn my string into a BSON::ObjectId? If so, how?

推荐答案

您可以使用BSON::ObjectId(@my_id_as_a_string)将您的ID表示为BSON::ObjectId

You can use BSON::ObjectId(@my_id_as_a_string) for representation your id as BSON::ObjectId

引用 http://api.mongodb.org/ruby/current /BSON.html#ObjectId-class_method

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