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#651 ✓invalid
Steve Rawlinson

ActiveRecord 2.1 does not update db if text attrib modified with []=

Reported by Steve Rawlinson | July 18th, 2008 @ 03:10 PM | in 2.x

For example:

o = MyObject.find(1)

o.mytext_attrib = "xxxxx"

Works fine. However ...

o.mytext_attrib[1] = 'X'

o.mytext_attrib => "xXxxx" => true


o.mytext_attrib => "xxxxx"

Checking the SQL log, no attempt is made to modify the row in the table.

If I also change another attrib and save, it updates the other modified

attrib, but not the text attrib modified with []=.

This behaviour has only started since moving to 2.1 from 2.0.2.

Hope that helps somebody.


Comments and changes to this ticket

  • Pratik

    Pratik July 18th, 2008 @ 05:25 PM

    • State changed from “new” to “invalid”
    • Tag cleared.

    If your app rely heavily on this, it might be advisable to disable partial updates. Otherwise, you'll need to do the following :

    o.mytext_attrib[1] = 'X'
  • Steve Rawlinson

    Steve Rawlinson July 19th, 2008 @ 04:10 PM

    Hmm. I think this is a bug. Partial updates is a great feature but if it

    doesn't notice when an attrib is changed by some (perfectly legitimate)

    means other than direct assignment should it be on by default?

    I've turned it off, thanks for the tip.

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