Image uploading - upload_column

Rails
1

Hai
I am using upload_column for uploading images. Trying to do the user
registration. For the first time when the user tries to upload image it
works fine. But when try to update the image an error
undefined method `process!’ for #UploadColumn::UploadedFile:0x6838424
occurs.
in my view I set the :multipart=>true.
and in controller in the edit action @user = User.find(params[:id])
and in update action @user.update_attributes(params[:user]). Do I need
to add anything more?
Please help , thanks in advance

2

Indu RS wrote:

Hai
I am using upload_column for uploading images. Trying to do the user
registration. For the first time when the user tries to upload image it
works fine. But when try to update the image an error
undefined method `process!’ for #UploadColumn::UploadedFile:0x6838424
occurs.
in my view I set the :multipart=>true.
and in controller in the edit action @user = User.find(params[:id])
and in update action @user.update_attributes(params[:user]). Do I need
to add anything more?
Please help , thanks in advance
The above problem was solved by installing RMagick, and then only we can
specify versions like thumb, large in model.rb file. If we haven’t
installed rmagick properly the error will occur at the time when we are
trying to change the image uplaoded (ie at the time of editing).