Let CHI modules other than just DBI get their hands on dbh and perhaps other things in the future;

add an "args" : [ "dbh" ] entry to the "cache" : { } config block

docs/changelog/7.x.x.txt

@@ -6,6 +6,7 @@
  - added: LastModifiedBy macro
  - added: Group Manager form control
  - fixed #12050: Thing query caching #1
+ - added: Let CHI cache request $dbh via an "args" : [ "dbh" ] cache conf
 
 7.10.11
  - fixed #12057: WebGUI::Search, assetIds search clause

lib/WebGUI/Cache/CHI.pm

@@ -99,7 +99,13 @@ sub new {
         # Default values
         my $resolveConf = sub {
             my ($config) = @_;
-            if ( $config->{driver} =~ /DBI/ ) {
+            if (
+                $config->{driver} =~ /DBI/ or (
+                    $config->{args} and   # "args" : [ "dbh" ] in the "cache": { } block?
+                    ref $config->{args} eq 'ARRAY' and 
+                    grep($_ eq 'dbh', @{ $config->{args} })
+                )
+            ) {  
                 $config->{ dbh } = $session->db->dbh;
             }
             if ( $config->{driver} =~ /File|FastMmap|BerkeleyDB/ ) {