X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FStorage%2FStatistics.pm;h=d4937d1932391deb3eeed718c4cd3d8838d8798a;hb=c6fa3170af14483e9d749931642fdd3000baa28c;hp=09f79da830b4acbd938d96b637108a35244e44bf;hpb=0547bab13aa1008c751cbb7f72a3743ceed9a5c2;p=dbsrgits%2FDBIx-Class.git

diff --git a/lib/DBIx/Class/Storage/Statistics.pm b/lib/DBIx/Class/Storage/Statistics.pm
index 09f79da..d4937d1 100644
--- a/lib/DBIx/Class/Storage/Statistics.pm
+++ b/lib/DBIx/Class/Storage/Statistics.pm
@@ -2,8 +2,10 @@ package DBIx::Class::Storage::Statistics;
 use strict;
 use warnings;
 
-use base qw/DBIx::Class::AccessorGroup Class::Data::Accessor/;
-__PACKAGE__->mk_group_accessors(simple => qw/callback debugfh/);
+use base qw/DBIx::Class/;
+use IO::File;
+
+__PACKAGE__->mk_group_accessors(simple => qw/callback _debugfh silence/);
 
 =head1 NAME
 
@@ -14,7 +16,7 @@ DBIx::Class::Storage::Statistics - SQL Statistics
 =head1 DESCRIPTION
 
 This class is called by DBIx::Class::Storage::DBI as a means of collecting
-statistics on it's actions.  Using this class alone merely prints the SQL
+statistics on its actions.  Using this class alone merely prints the SQL
 executed, the fact that it completes and begin/end notification for
 transactions.
 
@@ -44,6 +46,52 @@ be an IO::Handle compatible object (only the C<print> method is used). Initially
 should be set to STDERR - although see information on the
 L<DBIC_TRACE> environment variable.
 
+As getter it will lazily open a filehandle for you if one is not already set.
+
+=cut
+
+sub debugfh {
+  my $self = shift;
+
+  if (@_) {
+    $self->_debugfh($_[0]);
+  } elsif (!defined($self->_debugfh())) {
+    my $fh;
+    my $debug_env = $ENV{DBIX_CLASS_STORAGE_DBI_DEBUG}
+                  || $ENV{DBIC_TRACE};
+    if (defined($debug_env) && ($debug_env =~ /=(.+)$/)) {
+      $fh = IO::File->new($1, 'w')
+        or die("Cannot open trace file $1");
+    } else {
+      $fh = IO::File->new('>&STDERR')
+        or die('Duplication of STDERR for debug output failed (perhaps your STDERR is closed?)');
+    }
+
+    $fh->autoflush();
+    $self->_debugfh($fh);
+  }
+
+  $self->_debugfh;
+}
+
+=head2 print
+
+Prints the specified string to our debugging filehandle.  Provided to save our
+methods the worry of how to display the message.
+
+=cut
+sub print {
+  my ($self, $msg) = @_;
+
+  return if $self->silence;
+
+  $self->debugfh->print($msg);
+}
+
+=head2 silence
+
+Turn off all output if set to true.
+
 =head2 txn_begin
 
 Called when a transaction begins.
@@ -52,7 +100,9 @@ Called when a transaction begins.
 sub txn_begin {
   my $self = shift;
 
-  $self->debugfh->print("BEGIN WORK\n");
+  return if $self->callback;
+
+  $self->print("BEGIN WORK\n");
 }
 
 =head2 txn_rollback
@@ -63,7 +113,9 @@ Called when a transaction is rolled back.
 sub txn_rollback {
   my $self = shift;
 
-  $self->debugfh->print("ROLLBACK\n");
+  return if $self->callback;
+
+  $self->print("ROLLBACK\n");
 }
 
 =head2 txn_commit
@@ -74,7 +126,48 @@ Called when a transaction is committed.
 sub txn_commit {
   my $self = shift;
 
-  $self->debugfh->print("COMMIT\n");
+  return if $self->callback;
+
+  $self->print("COMMIT\n");
+}
+
+=head2 svp_begin
+
+Called when a savepoint is created.
+
+=cut
+sub svp_begin {
+  my ($self, $name) = @_;
+
+  return if $self->callback;
+
+  $self->print("SAVEPOINT $name\n");
+}
+
+=head2 svp_release
+
+Called when a savepoint is released.
+
+=cut
+sub svp_release {
+  my ($self, $name) = @_;
+
+  return if $self->callback;
+
+  $self->print("RELEASE SAVEPOINT $name\n");
+}
+
+=head2 svp_rollback
+
+Called when rolling back to a savepoint.
+
+=cut
+sub svp_rollback {
+  my ($self, $name) = @_;
+
+  return if $self->callback;
+
+  $self->print("ROLLBACK TO SAVEPOINT $name\n");
 }
 
 =head2 query_start
@@ -94,7 +187,7 @@ sub query_start {
     return;
   }
 
-  $self->debugfh->print($message);
+  $self->print($message);
 }
 
 =head2 query_end