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Does the function reuse way violate the information hiding?

 
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Dear all
I have some querstion for design.
If I have a function , it will return person information including name,mail and personNo.
So the function will be as below


But now I have a new user request , it only needs the persion information including name and mail.

Question 1 :
Should I reuse the existing funciton? It includes all the information but the personNo is unnecessary;
Will I violate information hiding If I reuse the existing function?

Question 2:
I can remove the uncessary information by writing new funciton as below.


This way will be good for information hiding.
But there are many dumb new function should be writed when users raise similar requests.
Can combody give me a suggestion how should I do in this situation?
 
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Posts: 12617
IntelliJ IDE Ruby
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Please UseAMeaningfulSubjectLine when posting. Explaining your question or remark briefly on the subject line allows us to know what we are getting into, and if we will be able to help. You can edit your post by using the button.

 
David Newton
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IntelliJ IDE Ruby
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Unless you have a real reason for not exposing details, why bother? What problem are you solving?
 
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