# Can not save object

**URL:** <https://www.ruby-forum.com/t/can-not-save-object/126111>\
**Category:** Rails\
**Created:** [January 15, 2008, 2:17pm UTC](https://www.ruby-forum.com/t/can-not-save-object/126111 "2008-01-15T14:17:22Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![linus](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/f4b2a3/32.png) [@linus](https://www.ruby-forum.com/u/linus)\
**Post date:** [January 15, 2008, 2:17pm UTC](https://www.ruby-forum.com/t/can-not-save-object/126111/1 "2008-01-15T14:17:22Z")

</div>

reload!; o=Order.find(2); o.exported!; puts Order.find(2).exported\_at  
=\> nil

in order.rb:  
…  
def exported!  
res = false  
if self.exported\_at.nil?  
self.exported\_at = Time.now  
res = self.save  
else  
res = true  
end

```
order_lines.each do |order_line|
  order_line.exported_at = Time.now
  order_line.save
end

res

```

end  
…

I have no idea why it does not work ☹ Maybe someone sees something  
strange here?

Cheers,  
Tomasz

---

<div class="post-metadata">

**Author:** ![linus](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/f4b2a3/32.png) [@linus](https://www.ruby-forum.com/u/linus)\
**Post date:** [January 15, 2008, 2:23pm UTC](https://www.ruby-forum.com/t/can-not-save-object/126111/2 "2008-01-15T14:23:08Z")

</div>

Tom Bak wrote:

> I have no idea why it does not work ☹ Maybe someone sees something  
> strange here?

ok, here is what was wrong:

before\_save :can\_be\_modified

def can\_be\_modified  
if exported\_at.nil?  
return true  
else  
return false  
end  
end

… still i would like to have that in the model. just being able to set  
that field…