# Prod vs. dev model loading

**URL:** <https://www.ruby-forum.com/t/prod-vs-dev-model-loading/188375>\
**Category:** Rails\
**Created:** [May 11, 2010, 3:39am UTC](https://www.ruby-forum.com/t/prod-vs-dev-model-loading/188375 "2010-05-11T03:39:32Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![bigdaddy71](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/bbe5ce/32.png) [@bigdaddy71](https://www.ruby-forum.com/u/bigdaddy71)\
**Post date:** [May 11, 2010, 3:39am UTC](https://www.ruby-forum.com/t/prod-vs-dev-model-loading/188375/1 "2010-05-11T03:39:32Z")

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Are there any conventions or anything to look out for assigning  
variables or what not running production mode as models and such are  
loaded only once? Is there anything that would cause something not to  
load or initialize properly when in production mode?