+<%init>
+
+my $curuser = $FS::CurrentUser::CurrentUser;
+
+die "access denied"
+ unless $curuser->access_right('Edit customer package dates');
+
+my $pkgnum = $cgi->param('pkgnum') or die;
+my $old = qsearchs('cust_pkg',{'pkgnum'=>$pkgnum});
+my %hash = $old->hash;
+$hash{$_}= $cgi->param($_) ? parse_datetime($cgi->param($_)) : ''
+ foreach qw( start_date setup bill last_bill adjourn expire contract_end );
+
+my @errors = ();
+
+push @errors, '_bill_areyousure'
+ if $hash{'bill'} != $old->bill # if the next bill date was changed
+ && $hash{'bill'} < time # to a date in the past
+ && ! $cgi->param('bill_areyousure'); # and it wasn't confirmed
+
+push @errors, '_setup_areyousure'
+ if ! $hash{'setup'} && $old->setup # if the setup date was removed
+ && ! $cgi->param('setup_areyousure'); # and it wasn't confirmed
+
+push @errors, '_start'
+ if $hash{'start_date'} && !$old->start_date # if a start date was added
+ && $hash{'setup'}; # but there's a setup date
+
+my $new;
+my $error;
+if ( @errors ) {
+ $error = join(',', @errors);
+} else {
+ $new = new FS::cust_pkg \%hash;
+ $error = $new->replace($old);
+}