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#6317 ✓stale
Andriy Tyurnikov

ActiveRecord MySQL zero-filled DATETIME processing

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

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)

Comments and changes to this ticket

  • Alexey Nayden

    Alexey Nayden January 29th, 2011 @ 09:02 PM

    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 -

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

  • Andriy Tyurnikov

    Andriy Tyurnikov January 29th, 2011 @ 09:26 PM

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

  • rails

    rails April 30th, 2011 @ 01:00 AM

    • 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.

  • rails

    rails April 30th, 2011 @ 01:00 AM

    • State changed from “open” to “stale”

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