#5405 [Invalid] - update_attribute attempts to write accessor to the database - Ruby on Rails

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#5405 ✓invalid

[Invalid] - update_attribute attempts to write accessor to the database

Reported by Oleg | August 18th, 2010 @ 05:47 PM

Let's say we have a class like this:

class Foo
  def bar=(value)
    # do something
  end

  def bar
    # return something
  end
end

Everything works great if I update attribute like this:

@foo.bar = 'something'
@foo.save

However, this:

@foo.update_attribute(:bar, 'something')

Blows up with:

ActiveRecord::StatementInvalid: Mysql::Error: Unknown column 'bar' in 'field list' ....

I can't for the life of me figure out why update_attribute tries to write that accessor to the database. Especially considering that internally it just assigns and saves. This is on 3.0.0.rc

Comments and changes to this ticket

You flagged this item as spam.
Marjan Krekoten' August 26th, 2010 @ 12:31 PM
Well, I tried this under rails master. I cann't reproduce bug...
You flagged this item as spam.
Oleg September 10th, 2010 @ 05:22 PM
Seems this problem existed under RC. Current 3.0 has no problem.
You flagged this item as spam.
Oleg September 10th, 2010 @ 05:22 PM
- Title changed from “update_attribute attempts to write accessor to the database” to “[Invalid] - update_attribute attempts to write accessor to the database”
Rohit Arondekar September 11th, 2010 @ 04:31 AM
- State changed from “new” to “invalid”
- Importance changed from “” to “Low”