X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FStorage%2FDBI%2FReplicated.pm;h=1024d47c8bfbdfaa97bb74c93565e4189986718b;hb=ed7ab0f4ce1a9118ea6285ee562ef003085a6b64;hp=c21fe8a44f4784d367a25f91e9311a57f1fa8583;hpb=734868da8acee7ff14dff8b91ab18f0edc3c10df;p=dbsrgits%2FDBIx-Class.git

diff --git a/lib/DBIx/Class/Storage/DBI/Replicated.pm b/lib/DBIx/Class/Storage/DBI/Replicated.pm
index c21fe8a..1024d47 100644
--- a/lib/DBIx/Class/Storage/DBI/Replicated.pm
+++ b/lib/DBIx/Class/Storage/DBI/Replicated.pm
@@ -15,7 +15,8 @@ use DBIx::Class::Storage::DBI::Replicated::Types qw/BalancerClassNamePart DBICSc
 use MooseX::Types::Moose qw/ClassName HashRef Object/;
 use Scalar::Util 'reftype';
 use Hash::Merge;
-use List::Util qw/min max/;
+use List::Util qw/min max reduce/;
+use Try::Tiny;
 
 use namespace::clean -except => 'meta';
 
@@ -306,9 +307,8 @@ has 'write_handler' => (
 
     backup
     is_datatype_numeric
-    can_insert_returning
+    _supports_insert_returning
     _count_select
-    _subq_count_select
     _subq_update_delete
     svp_rollback
     svp_begin
@@ -343,7 +343,6 @@ has 'write_handler' => (
     _dbh_commit
     _execute_array
     _placeholders_supported
-    _verify_pid
     savepoints
     _sqlt_minimum_version
     _sql_maker_opts
@@ -367,9 +366,23 @@ has 'write_handler' => (
     _dbh_sth
     _dbh_execute
     _prefetch_insert_auto_nextvals
+    _server_info_hash
   /],
 );
 
+my @unimplemented = qw(
+  _arm_global_destructor
+  _preserve_foreign_dbh
+  _verify_pid
+  _verify_tid
+);
+
+for my $method (@unimplemented) {
+  __PACKAGE__->meta->add_method($method, sub {
+    croak "$method must not be called on ".(blessed shift).' objects';
+  });
+}
+
 has _master_connect_info_opts =>
   (is => 'rw', isa => HashRef, default => sub { {} });
 
@@ -638,7 +651,8 @@ sub execute_reliably {
   my @result;
   my $want_array = wantarray;
 
-  eval {
+  my $exception;
+  try {
     if($want_array) {
       @result = $coderef->(@args);
     } elsif(defined $want_array) {
@@ -646,19 +660,14 @@ sub execute_reliably {
     } else {
       $coderef->(@args);
     }
+  } catch {
+    $self->throw_exception("coderef returned an error: $_");
+  } finally {
+    ##Reset to the original state
+    $self->read_handler($current);
   };
 
-  ##Reset to the original state
-  $self->read_handler($current);
-
-  ##Exception testing has to come last, otherwise you might leave the 
-  ##read_handler set to master.
-
-  if($@) {
-    $self->throw_exception("coderef returned an error: $@");
-  } else {
-    return $want_array ? @result : $result[0];
-  }
+  return $want_array ? @result : $result[0];
 }
 
 =head2 set_reliable_storage
@@ -1008,6 +1017,36 @@ sub _ping {
   return min map $_->_ping, $self->all_storages;
 }
 
+my $numify_ver = sub {
+  my $ver = shift;
+  my @numparts = split /\D+/, $ver;
+  my $format = '%d.' . (join '', ('%05d') x (@numparts - 1));
+
+  return sprintf $format, @numparts;
+};
+
+sub _server_info {
+  my $self = shift;
+
+  if (not $self->_server_info_hash) {
+    my $min_version_info = (
+      reduce { $a->[0] < $b->[0] ? $a : $b } 
+      map [ $numify_ver->($_->{dbms_version}), $_ ],
+      map $_->_server_info, $self->all_storages
+    )->[1];
+
+    $self->_server_info_hash($min_version_info); # on master
+  }
+
+  return $self->_server_info_hash;
+}
+
+sub _get_server_version {
+  my $self = shift;
+
+  return $self->_server_info->{dbms_version};
+}
+
 =head1 GOTCHAS
 
 Due to the fact that replicants can lag behind a master, you must take care to