On Feb 22, 9:08 pm, Guillaume Loader <rails-mailing-l...@andreas-
s.net> wrote:
> Hello everyone!
>
> I have a form where we can attach files to a post.
> But I want to do different things depending wether a file is attached or
> not.
>
> So my question is : it it possible to know if a file is attached? I
> would say yes, we just need to see if the parameter "file" is empty.
>
> Here are my parameters :
> {
> "commit"=>"Create",
> "post"=>{"title"=>"Test",
> "subject"=>"desc test",
> "post_attachment"=>
> {
> "post_id"=>"",
> "file"=>"", # <----------- This is the line with the file
> "creator_user_id"=>""
> }
>
> }
>
> How can I test if the variable "file" is empty or not?
Assuming Rails 2.2 or higher:
if params[:post_attachment][:file].present?
# do file upload here
end
If Rails 2.1 or earlier,
unless params[:post_attachment][:file].blank?
# do file upload here
end
Does this help?
Jeff
purpleworkshops.com
switchingtorails.com
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