undefined method `path' for nil:NilClass semantic_form_for rails

Question

I am trying to upload a file to be parsed for attributes using semantic_form_for and I cannot seem to get it to work, although from what I've read it should be. I have been at this for a while now and cant seem to get anything to work.

Here is my view.haml:

= semantic_form_for(@user, :url => import_users_path, :html => {:multipart => true} ) do |f|
        = f.inputs :id => 'inputs' do
          = f.input :filename, :as => :file
        %br
        %br
        = f.actions do
          = f.action :submit, :label => 'BULK UPLOAD'

and the users controller import function:

 def import
    myfile = params[:filename]

    CSV.foreach(myfile.path, headers: true) do |row|
      @user = User.new(params[:user])
      @user.name = row['Name']
      @user.email = row['Email']
      @user.save
    end
    redirect_to users_url 
  end

For whatever reason, the file does not seem to be passed into the import function. It worked fine with form_for, but not semantic_form_for which is what i need to try and use. Thanks for any help!

Answer 1

Just change myfile = params[:filename] to myfile = params[:user][:file]in your controller's import method:

def import
  myfile = params[:user][:file]

  CSV.foreach(myfile.path, headers: true) do |row|
    @user = User.new
    @user.name = row['Name']
    @user.email = row['Email']
    @user.save
  end
  redirect_to users_url
end