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ActiveRecord MySQL zero-filled DATETIME processing

#6317

Environment: ruby 1.9.2, rails 3.0.3, mysql 5.1.54.
MySql database has record with created_at field - datetime type.
Value of the field is '0000-00-00 00:00:00', problem is simple - when value is passed to activerecord instance it is converted to ruby nil, not to ruby DateTime or something.
This is the reason why model.created_at.to_s(:my_format) fails with exception. (nil's to_s has no format parameter)

Reported by Andriy Tyurnikov · January 20th, 2011 @ 09:42 AM

State: stale
Milestone: none
Assigned to: nobody
Importance: none

Activity

  1. Alexey Nayden
    Alexey Nayden

    The DATETIME type is used when you need values that contain both date and time information. MySQL retrieves and displays DATETIME values in 'YYYY-MM-DD HH:MM:SS' format. The supported range is '1000-01-01 00:00:00' to '9999-12-31 23:59:59'.

    From the official docs - http://dev.mysql.com/doc/refman/5.0/en/datetime.html

    So, looks like the DB value is corrupted, right?

    January 29th, 2011 @ 09:02 PM

  2. Andriy Tyurnikov
    Andriy Tyurnikov

    Hmm, good point.
    So it looks like MySQL accepts and stores values which are not supported according to MySQL docs (

    January 29th, 2011 @ 09:26 PM

  3. rails
    rails
    • State changed from new to open

    This issue has been automatically marked as stale because it has not been commented on for at least three months.

    The resources of the Rails core team are limited, and so we are asking for your help. If you can still reproduce this error on the 3-0-stable branch or on master, please reply with all of the information you have about it and add "[state:open]" to your comment. This will reopen the ticket for review. Likewise, if you feel that this is a very important feature for Rails to include, please reply with your explanation so we can consider it.

    Thank you for all your contributions, and we hope you will understand this step to focus our efforts where they are most helpful.

    April 30th, 2011 @ 01:00 AM

  4. rails
    rails
    • State changed from open to stale

    April 30th, 2011 @ 01:00 AM