# Custom libraries

**URL:** <https://www.ruby-forum.com/t/custom-libraries/136978>\
**Category:** Rails\
**Created:** [May 7, 2008, 10:03pm UTC](https://www.ruby-forum.com/t/custom-libraries/136978 "2008-05-07T22:03:02Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![dannyheathcote](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/f07891/32.png) [@dannyheathcote](https://www.ruby-forum.com/u/dannyheathcote)\
**Post date:** [May 7, 2008, 10:03pm UTC](https://www.ruby-forum.com/t/custom-libraries/136978/1 "2008-05-07T22:03:02Z")

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Hi,

Im working on a webshop system.  
Now I want to make modules for each payment method.  
These libraries must containt validation methods etc.  
The modules are loaded dynamicly by a dirlisting in e.g.  
modules/payment/\*

Where is the best place to save these files?  
I don’t think the models directory is the right place.  
Any suggestions?