fix using an undefined value as an ARRAY reference

sni · sni · commit 1d21786d4cb4 · 2024-02-27T12:04:12.000+01:00
diff --git a/lib/Thruk/Backend/Manager.pm b/lib/Thruk/Backend/Manager.pm
@@ -1691,7 +1691,7 @@ sub _do_on_peers {
             }
         }
 
-        if($arg{'pager'}) {
+        if($arg{'pager'} && ref $data eq 'ARRAY') {
             my $already_paged = $ENV{'THRUK_USE_LMD'} ? 1 : 0;
             if($arg{'pager'}->{'entries'} && $arg{'pager'}->{'entries'} =~ /^\d+$/mx && scalar @{$data} > $arg{'pager'}->{'entries'}) {
                 $already_paged = 0;

Original file line number	Diff line number	Diff line change
`@@ -1691,7 +1691,7 @@ sub _do_on_peers {`
`1691`	`1691`	`}`
`1692`	`1692`	`}`
`1693`	`1693`
`1694`		`- if($arg{'pager'}) {`
	`1694`	`+ if($arg{'pager'} && ref $data eq 'ARRAY') {`
`1695`	`1695`	`my $already_paged = $ENV{'THRUK_USE_LMD'} ? 1 : 0;`
`1696`	`1696`	`if($arg{'pager'}->{'entries'} && $arg{'pager'}->{'entries'} =~ /^\d+$/mx && scalar @{$data} > $arg{'pager'}->{'entries'}) {`
`1697`	`1697`	`$already_paged = 0;`