# Readonly attributes

**URL:** <https://www.ruby-forum.com/t/readonly-attributes/186992>\
**Category:** Rails\
**Created:** [April 15, 2010, 12:05pm UTC](https://www.ruby-forum.com/t/readonly-attributes/186992 "2010-04-15T12:05:03Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![john\_old](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/9f8e36/32.png) [@john\_old](https://www.ruby-forum.com/u/john_old)\
**Post date:** [April 15, 2010, 12:05pm UTC](https://www.ruby-forum.com/t/readonly-attributes/186992/1 "2010-04-15T12:05:03Z")

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In Firebird database one can declare computed columns. These columns  
are readonly in the database. How do I stop activerecord to include  
these columns in insert statements. I know about attr\_readonly for  
updates.