Ruby on Rails

On 6 December 2012 09:43, Jean-David <jeandavid.cohen@gmail.com> wrote:
> NOOB ALERT
>
> Now I warned you, here's the problem that's been getting me mad for hours
>
> I've got a model for content I'm calling "lead". It has a title, a text and
> an image used as a background.
>
> I'm not using paperclip or CarrierWave to handle the image file (and I don't
> want to, one of my needs here is to learn how this all works).
> I'm using this function to upload the file (it comes directly from the rails
> guides) :
>
> def upload
> if params[:lead][:illustration]
> uploaded_io = params[:lead][:illustration]
>
> File.open(Rails.root.join('app', 'assets', 'images',
> uploaded_io.original_filename), 'wb') do |file|
> file.write(uploaded_io.read)
> end
>
> @lead.illustration = "#{uploaded_io.original_filename}"
> end
> end
>
> When creating a "lead", everything goes fine with create:
>
> def create
> @lead = Lead.new( params[:lead] )
>
> upload
>
> if @lead.save
> flash[:success] = "Lead successfully added."
> redirect_to @lead
> else
> redirect_to root_path
> end
> end
>
> The "lead" gets saved, I can use it. So far, so good.
>
>
> Now with the problem (remember the NOOB ALERT).
> Updating a lead without modifying the image goes fine, but updating with a
> new image returns this error:
>
>
> NoMethodError in LeadsController#update
>
> undefined method `name' for nil:NilClass
>
> and
>
> app/controllers/leads_controller.rb:45:in `update'

The error says that you are calling method 'name' for something that
is nil at line 45 in leads_controller.rb.

>
>
> Here's my update function:
>
> def update
> @lead = Lead.find_by_id( params[:id] )
>
> upload
>
> if @lead.update_attributes!(params[:lead])
> flash[:success] = "Leaderboard successfully updated."
> redirect_to @lead
> else
> render action: "edit"
> end
> end
>
> Basically the same as create. I've been googling and going back and forth
> for hours and I didn't get to solve this. Any help would be more than
> welcome.

Unfortunately you have not told us which is line 45.

Colin

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