use base qw/
DBIx::Class::Storage::DBI::MultiColumnIn
- DBIx::Class::Storage::DBI::AmbiguousGlob
DBIx::Class::Storage::DBI
/;
use mro 'c3';
-__PACKAGE__->sql_maker_class('DBIx::Class::SQLAHacks::MySQL');
+__PACKAGE__->sql_maker_class('DBIx::Class::SQLMaker::MySQL');
+__PACKAGE__->sql_limit_dialect ('LimitXY');
sub with_deferred_fk_checks {
my ($self, $sub) = @_;
$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';
}
+sub deployment_statements {
+ my $self = shift;
+ my ($schema, $type, $version, $dir, $sqltargs, @rest) = @_;
+
+ $sqltargs ||= {};
+
+ if (
+ ! exists $sqltargs->{producer_args}{mysql_version}
+ and
+ my $dver = $self->_server_info->{normalized_dbms_version}
+ ) {
+ $sqltargs->{producer_args}{mysql_version} = $dver;
+ }
+
+ $self->next::method($schema, $type, $version, $dir, $sqltargs, @rest);
+}
+
sub _svp_begin {
my ($self, $name) = @_;
- $self->dbh->do("SAVEPOINT $name");
+ $self->_get_dbh->do("SAVEPOINT $name");
}
sub _svp_release {
my ($self, $name) = @_;
- $self->dbh->do("RELEASE SAVEPOINT $name");
+ $self->_get_dbh->do("RELEASE SAVEPOINT $name");
}
sub _svp_rollback {
my ($self, $name) = @_;
- $self->dbh->do("ROLLBACK TO SAVEPOINT $name")
+ $self->_get_dbh->do("ROLLBACK TO SAVEPOINT $name")
}
sub is_replicating {
- my $status = shift->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->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.
=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>