use base qw/SQL::Abstract::Limit/;
sub select {
- my ($self, $ident, @rest) = @_;
- return $self->SUPER::select($self->from($ident), @rest);
+ my ($self, $table, $fields, $where, $order, @rest) = @_;
+ @rest = (-1) unless defined $rest[0];
+ $self->SUPER::select($table, $self->_recurse_fields($fields),
+ $where, $order, @rest);
}
-sub from {
+sub _emulate_limit {
+ my $self = shift;
+ if ($_[3] == -1) {
+ return $_[1].$self->_order_by($_[2]);
+ } else {
+ return $self->SUPER::_emulate_limit(@_);
+ }
+}
+
+sub _recurse_fields {
+ my ($self, $fields) = @_;
+ my $ref = ref $fields;
+ return $self->_quote($fields) unless $ref;
+ return $$fields if $ref eq 'SCALAR';
+
+ if ($ref eq 'ARRAY') {
+ return join(', ', map { $self->_recurse_fields($_) } @$fields);
+ } elsif ($ref eq 'HASH') {
+ foreach my $func (keys %$fields) {
+ return $self->_sqlcase($func)
+ .'( '.$self->_recurse_fields($fields->{$func}).' )';
+ }
+ }
+}
+
+sub _order_by {
+ my $self = shift;
+ my $ret = '';
+ if (ref $_[0] eq 'HASH') {
+ if (defined $_[0]->{group_by}) {
+ $ret = $self->_sqlcase(' group by ')
+ .$self->_recurse_fields($_[0]->{group_by});
+ }
+ if (defined $_[0]->{order_by}) {
+ $ret .= $self->SUPER::_order_by($_[0]->{order_by});
+ }
+ } else {
+ $ret = $self->SUPER::_order_by(@_);
+ }
+ return $ret;
+}
+
+sub _table {
my ($self, $from) = @_;
if (ref $from eq 'ARRAY') {
return $self->_recurse_from(@$from);
push(@sqlf, $self->_make_as($from));
foreach my $j (@join) {
my ($to, $on) = @$j;
- push(@sqlf, ' JOIN ');
+
+ # check whether a join type exists
+ my $join_clause = '';
+ if (ref($to) eq 'HASH' and exists($to->{-join_type})) {
+ $join_clause = ' '.uc($to->{-join_type}).' JOIN ';
+ } else {
+ $join_clause = ' JOIN ';
+ }
+ push(@sqlf, $join_clause);
+
if (ref $to eq 'ARRAY') {
push(@sqlf, '(', $self->_recurse_from(@$to), ')');
} else {
sub _make_as {
my ($self, $from) = @_;
- return join(' ', reverse each %$from);
+ return join(' ', map { (ref $_ eq 'SCALAR' ? $$_ : $self->_quote($_)) }
+ reverse each %{$self->_skip_options($from)});
+}
+
+sub _skip_options {
+ my ($self, $hash) = @_;
+ my $clean_hash = {};
+ $clean_hash->{$_} = $hash->{$_}
+ for grep {!/^-/} keys %$hash;
+ return $clean_hash;
}
sub _join_condition {
my ($self, $cond) = @_;
- die "no chance" unless ref $cond eq 'HASH';
- my %j;
- for (keys %$cond) { my $x = '= '.$cond->{$_}; $j{$_} = \$x; };
- return $self->_recurse_where(\%j);
+ if (ref $cond eq 'HASH') {
+ my %j;
+ for (keys %$cond) { my $x = '= '.$self->_quote($cond->{$_}); $j{$_} = \$x; };
+ return $self->_recurse_where(\%j);
+ } elsif (ref $cond eq 'ARRAY') {
+ return join(' OR ', map { $self->_join_condition($_) } @$cond);
+ } else {
+ die "Can't handle this yet!";
+ }
+}
+
+sub _quote {
+ my ($self, $label) = @_;
+ return '' unless defined $label;
+ return $self->SUPER::_quote($label);
}
} # End of BEGIN block
__PACKAGE__->mk_group_accessors('simple' =>
qw/connect_info _dbh _sql_maker debug cursor/);
+our $TRANSACTION = 0;
+
sub new {
my $new = bless({}, ref $_[0] || $_[0]);
$new->cursor("DBIx::Class::Storage::DBI::Cursor");
return $new;
}
-sub get_simple {
- my ($self, $get) = @_;
- return $self->{$get};
-}
-
-sub set_simple {
- my ($self, $set, $val) = @_;
- return $self->{$set} = $val;
-}
-
=head1 NAME
DBIx::Class::Storage::DBI - DBI storage handler
=head1 METHODS
-=over 4
-
=cut
sub dbh {
return DBI->connect(@info);
}
-=item commit
+=head2 txn_begin
- $class->commit;
-
-Issues a commit again the current dbh
+Calls begin_work on the current dbh.
=cut
-sub commit { $_[0]->dbh->commit; }
+sub txn_begin {
+ $_[0]->dbh->begin_work if $TRANSACTION++ == 0 and $_[0]->dbh->{AutoCommit};
+}
-=item rollback
+=head2 txn_commit
- $class->rollback;
+Issues a commit against the current dbh.
-Issues a rollback again the current dbh
+=cut
+
+sub txn_commit {
+ if ($TRANSACTION == 0) {
+ $_[0]->dbh->commit;
+ }
+ else {
+ $_[0]->dbh->commit if --$TRANSACTION == 0;
+ }
+}
+
+=head2 txn_rollback
+
+Issues a rollback against the current dbh.
=cut
-sub rollback { $_[0]->dbh->rollback; }
+sub txn_rollback {
+ if ($TRANSACTION == 0) {
+ $_[0]->dbh->rollback;
+ }
+ else {
+ --$TRANSACTION == 0 ? $_[0]->dbh->rollback : die $@;
+ }
+}
sub _execute {
my ($self, $op, $extra_bind, $ident, @args) = @_;
my ($sql, @bind) = $self->sql_maker->$op($ident, @args);
unshift(@bind, @$extra_bind) if $extra_bind;
warn "$sql: @bind" if $self->debug;
- my $sth = $self->sth($sql);
+ my $sth = $self->sth($sql,$op);
@bind = map { ref $_ ? ''.$_ : $_ } @bind; # stringify args
my $rv = $sth->execute(@bind);
return (wantarray ? ($rv, $sth, @bind) : $rv);
sub insert {
my ($self, $ident, $to_insert) = @_;
$self->throw( "Couldn't insert ".join(', ', map "$_ => $to_insert->{$_}", keys %$to_insert)." into ${ident}" )
- unless ($self->_execute('insert' => [], $ident, $to_insert) > 0);
+ unless ($self->_execute('insert' => [], $ident, $to_insert));
return $to_insert;
}
if (ref $condition eq 'SCALAR') {
$order = $1 if $$condition =~ s/ORDER BY (.*)$//i;
}
+ if (exists $attrs->{group_by}) {
+ $order = { group_by => $attrs->{group_by},
+ ($order ? (order_by => $order) : ()) };
+ }
my @args = ('select', $attrs->{bind}, $ident, $select, $condition, $order);
if ($attrs->{software_limit} ||
$self->sql_maker->_default_limit_syntax eq "GenericSubQ") {
}
sub sth {
- shift->dbh->prepare(@_);
+ my ($self, $sql, $op) = @_;
+ my $meth = (defined $op && $op ne 'select' ? 'prepare_cached' : 'prepare');
+ return $self->dbh->$meth($sql);
}
1;
-=back
-
=head1 AUTHORS
Matt S. Trout <mst@shadowcatsystems.co.uk>
projects / dbsrgits/DBIx-Class.git / blobdiff