From: Dan __ <major_general_joe@...>
Date: 2008-06-30T00:46:04+09:00
Subject: Re: Recursive Logic - Examples and Resources?

Matt Darby wrote:
>> So, if the set is 1 2 3 4 5 6 7 8 9 10, and User1 has (9, 17), while
>> User2 has (3, 7), User2 could be part of the set, while User1 could not.
> 
> This approach is pretty naive, but it might work:
> 
> range = 0...10
> User.find(:all, :conditions => ["num1 IN (?) and num2 IN (?)", range,
> range])

Thanks for the suggestion Matt, it seems like a good start.  That seems 
like it would just return every user that fit into the set though, and 
not five to make up a set.  As well, I'd like to avoid using SQL code if 
I could, because I'm not sure which database the final app will use/how 
often it'll switch (its using PostgreSQL right now, but that might have 
to switch depending on hosting, etc.).
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