X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FStorage%2FDBI%2Fmysql.pm;h=ecdc29a924b5eef15b6a6f3466458a5cac94bb8a;hb=b8391c875ed35fd7c5c20aed6dcae724d9366a56;hp=89c8f897af99e7902e541b198f6917b254fce706;hpb=ce73b8eff5a566c428856939c1d0d5ccff9d3594;p=dbsrgits%2FDBIx-Class.git

diff --git a/lib/DBIx/Class/Storage/DBI/mysql.pm b/lib/DBIx/Class/Storage/DBI/mysql.pm
index 89c8f89..ecdc29a 100644
--- a/lib/DBIx/Class/Storage/DBI/mysql.pm
+++ b/lib/DBIx/Class/Storage/DBI/mysql.pm
@@ -5,7 +5,6 @@ use warnings;
 
 use base qw/
   DBIx::Class::Storage::DBI::MultiColumnIn
-  DBIx::Class::Storage::DBI::AmbiguousGlob
   DBIx::Class::Storage::DBI
 /;
 use mro 'c3';
@@ -33,6 +32,21 @@ sub _dbh_last_insert_id {
   $dbh->{mysql_insertid};
 }
 
+# we need to figure out what mysql version we're running
+sub sql_maker {
+  my $self = shift;
+
+  unless ($self->_sql_maker) {
+    my $maker = $self->next::method (@_);
+
+    # mysql 3 does not understand a bare JOIN
+    my $mysql_ver = $self->_get_dbh->get_info(18);
+    $maker->{_default_jointype} = 'INNER' if $mysql_ver =~ /^3/;
+  }
+
+  return $self->_sql_maker;
+}
+
 sub sqlt_type {
   return 'MySQL';
 }
@@ -40,28 +54,28 @@ sub sqlt_type {
 sub _svp_begin {
     my ($self, $name) = @_;
 
-    $self->last_dbh->do("SAVEPOINT $name");
+    $self->_get_dbh->do("SAVEPOINT $name");
 }
 
 sub _svp_release {
     my ($self, $name) = @_;
 
-    $self->last_dbh->do("RELEASE SAVEPOINT $name");
+    $self->_get_dbh->do("RELEASE SAVEPOINT $name");
 }
 
 sub _svp_rollback {
     my ($self, $name) = @_;
 
-    $self->last_dbh->do("ROLLBACK TO SAVEPOINT $name")
+    $self->_get_dbh->do("ROLLBACK TO SAVEPOINT $name")
 }
 
 sub is_replicating {
-    my $status = shift->last_dbh->selectrow_hashref('show slave status');
+    my $status = shift->_get_dbh->selectrow_hashref('show slave status');
     return ($status->{Slave_IO_Running} eq 'Yes') && ($status->{Slave_SQL_Running} eq 'Yes');
 }
 
 sub lag_behind_master {
-    return shift->last_dbh->selectrow_hashref('show slave status')->{Seconds_Behind_Master};
+    return shift->_get_dbh->selectrow_hashref('show slave status')->{Seconds_Behind_Master};
 }
 
 # MySql can not do subquery update/deletes, only way is slow per-row operations.
@@ -85,12 +99,30 @@ C<$storage> object into this class.
 
 =head1 DESCRIPTION
 
-This class implements MySQL specific bits of L<DBIx::Class::Storage::DBI>.
+This class implements MySQL specific bits of L<DBIx::Class::Storage::DBI>,
+like AutoIncrement column support and savepoints. Also it augments the
+SQL maker to support the MySQL-specific C<STRAIGHT_JOIN> join type, which
+you can use by specifying C<< join_type => 'straight' >> in the
+L<relationship attributes|DBIx::Class::Relationship::Base/join_type>
+
 
 It also provides a one-stop on-connect macro C<set_strict_mode> which sets
 session variables such that MySQL behaves more predictably as far as the
 SQL standard is concerned.
 
+=head1 STORAGE OPTIONS
+
+=head2 set_strict_mode
+
+Enables session-wide strict options upon connecting. Equivalent to:
+
+  ->connect ( ... , {
+    on_connect_do => [
+      q|SET SQL_MODE = CONCAT('ANSI,TRADITIONAL,ONLY_FULL_GROUP_BY,', @@sql_mode)|,
+      q|SET SQL_AUTO_IS_NULL = 0|,
+    ]
+  });
+
 =head1 AUTHORS
 
 See L<DBIx::Class/CONTRIBUTORS>