+sub action_add_empty_mapping_line {
+  my ($self) = @_;
+
+  $self->profile_from_form;
+  $self->setup_help;
+
+  $self->js
+    ->append('#csv_import_mappings', $self->render('csv_import/_mapping_item', { layout => 0, output => 0 }))
+    ->hide('#mapping_empty')
+    ->render;
+}
+
+sub action_add_mapping_from_upload {
+  my ($self) = @_;
+
+  if ($::form->{tmp_profile_id}) {
+    $self->profile_from_form(SL::DB::CsvImportProfile->new(id => $::form->{tmp_profile_id})->load);
+  } else {
+    $self->profile_from_form;
+  }
+  $self->setup_help;
+
+  my $file_name;
+  if ($self->profile->get('file_name')) {
+    $file_name = $self->profile->get('file_name');
+  } else {
+    $self->js
+      ->flash('error', t8('No file has been uploaded yet.'))
+      ->render;
+    return;
+  }
+
+  my $file = SL::SessionFile->new($file_name, mode => '<', encoding => $self->profile->get('charset'));
+  if (!$file->fh) {
+    $self->js
+      ->flash('error', t8('No file has been uploaded yet.'))
+      ->render;
+    return;
+  }
+
+  my $csv = SL::Helper::Csv->new(
+    file => $file->file_name,
+    map { $_ => $self->profile->get($_) } qw(sep_char escape_char quote_char),
+  );
+
+  $csv->_open_file;
+  my $header = $csv->check_header;
+
+  for my $field (@$header) {
+    next if $self->mappings_for_profile->{$field};
+    $self->js->append(
+      '#csv_import_mappings',
+      $self->render('csv_import/_mapping_item', { layout => 0, output => 0 }, item => { from => $field }),
+    );
+  }
+
+  $self->js
+    ->hide('#mapping_empty')
+    ->render;
+}
+