Rails - Apr 2006 - file_column does not work with update model

When I am creating a model, everything works but not during update 
(where I use Model.update_attributes(model_attributes) ).
I get the error:

Do not know how to handle a string with value ''image_xxx.jpg''
that was
passed to a file_column. Check if the form''s encoding has been set to 
''multipart/form-data''.

The form is indeed multipart. Does file_column work with 
update_attributes? In the server log I see message:

script/server: No such file or directory - file -bi 
"./script/../config/../publi
c/temple/image1/tmp/1145739576.129000.3652/image_xxx.JPG"

but the image is there in 
/public/temple/image1/tmp/1145739576.129000.3652/ folder.

What could be going wrong here?




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The problem has to do with my update method in the controller. I was 
doing a find_by_id
in my update and then setting the attributes. This was followed later by 
call to update_attributes like below:

def update
 @temple = Temple.find(params[:id])
 @temple.attributes = params[:temple]
 ...
 ...
 ...
 @temple.update_attributes(@temple.attributes)
end


If I take out the call to
  @temple.attributes = params[:temple]
and replace it with
  @temple.update_attributes(params[:temple)

things are working. So seems like I need to rework my update method 
impl.



Navjeet Chabbewal wrote:
> When I am creating a model, everything works but not during update 
> (where I use Model.update_attributes(model_attributes) ).
> I get the error:
> 
> Do not know how to handle a string with value
''image_xxx.jpg'' that was
> passed to a file_column. Check if the form''s encoding has been set
to
> ''multipart/form-data''.
> 
> The form is indeed multipart. Does file_column work with 
> update_attributes? In the server log I see message:
> 
> script/server: No such file or directory - file -bi 
> "./script/../config/../publi
> c/temple/image1/tmp/1145739576.129000.3652/image_xxx.JPG"
> 
> but the image is there in 
> /public/temple/image1/tmp/1145739576.129000.3652/ folder.
> 
> What could be going wrong here?

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