I have an app whose admin allows users to upload PDFs to populate a
“newsletter” section.
I’m having trouble getting validation to work properly.
I want to be sure that a name, description & file are specified in the
form.
The app seems to catch the error and won’t write a row to the DB but it
will create a file sized 0KB in the upload folder and it won’t show the
error messages for that model. (using error_messages_for…)
CODE IS BELOW…Thanks
—CONTROLER----
def add_newsletter
@newsletter = Newsletter.new(params[:newsletter])
if @newsletter.save
flash[:notice] = “Added a newsletter: #{@newsletter.name}”
redirect_to(:action=>‘newsletter’)
end
end
----MODEL----
class Newsletter < ActiveRecord::Base
validates_presence_of :name, :summary, :filename
def newsletter=(newsletter_field)
self.filename = sanitize_filename(newsletter_field.original_filename)
self.filename = Time.now.strftime("%H%M%S")+self.filename
#self.data = element_field.read
File.open("#{RAILS_ROOT}/public/newsletters/#{self.filename}",“wb”) {
|f| f.write(newsletter_field.read)}
end
private
def sanitize_filename(value)
just_filename = value.gsub(/^.*(\\|\/)/, '')
@filename = just_filename.gsub(/[^\w\.\-]/,'_')
end
end
–VIEW–
Add a New Newsletter
<%= form_tag({:action=>'add_newsletter'}, :multipart=>true) %>| Title | <%=text_field(:newsletter,:name)%> |
| Publication Date | <%=date_select(:newsletter,:pubDate,:order=>[:month,:day,:year])%> |
| PDF File | <%=file_field(:newsletter,:newsletter)%> |
| Description | <%=text_area(:newsletter,:summary)%> |
| <%=submit_tag("Add Newsletter")%> |