use strict;
use warnings;
use DBI;
+use SQL::Abstract::Limit;
+use DBIx::Class::Storage::DBI::Cursor;
-use base qw/DBIx::Class/;
+BEGIN {
-__PACKAGE__->load_components(qw/SQL::Abstract SQL Exception AccessorGroup/);
+package DBIC::SQL::Abstract; # Temporary. Merge upstream.
-__PACKAGE__->mk_group_accessors('simple' => qw/connect_info _dbh/);
+use base qw/SQL::Abstract::Limit/;
-sub new {
- bless({}, ref $_[0] || $_[0]);
+sub _table {
+ my ($self, $from) = @_;
+ if (ref $from eq 'ARRAY') {
+ return $self->_recurse_from(@$from);
+ } elsif (ref $from eq 'HASH') {
+ return $self->_make_as($from);
+ } else {
+ return $from;
+ }
+}
+
+sub _recurse_from {
+ my ($self, $from, @join) = @_;
+ my @sqlf;
+ push(@sqlf, $self->_make_as($from));
+ foreach my $j (@join) {
+ my ($to, $on) = @$j;
+
+ # 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 {
+ push(@sqlf, $self->_make_as($to));
+ }
+ push(@sqlf, ' ON ', $self->_join_condition($on));
+ }
+ return join('', @sqlf);
+}
+
+sub _make_as {
+ my ($self, $from) = @_;
+ return join(' ', map { $self->_quote($_) }
+ reverse each %{$self->_skip_options($from)});
+}
+
+sub _skip_options {
+ my ($self, $hash) = @_;
+ my $clean_hash = {};
+ $clean_hash->{$_} = $hash->{$_}
+ for grep {!/^-/} keys %$hash;
+ return $clean_hash;
}
-sub get_simple {
- my ($self, $get) = @_;
- return $self->{$get};
+sub _join_condition {
+ my ($self, $cond) = @_;
+ die "no chance" unless ref $cond eq 'HASH';
+ my %j;
+ for (keys %$cond) { my $x = '= '.$self->_quote($cond->{$_}); $j{$_} = \$x; };
+ return $self->_recurse_where(\%j);
}
-sub set_simple {
- my ($self, $set, $val) = @_;
- return $self->{$set} = $val;
+sub _quote {
+ my ($self, $label) = @_;
+ return '' unless defined $label;
+ return $self->SUPER::_quote($label);
+}
+
+} # End of BEGIN block
+
+use base qw/DBIx::Class/;
+
+__PACKAGE__->load_components(qw/Exception AccessorGroup/);
+
+__PACKAGE__->mk_group_accessors('simple' =>
+ qw/connect_info _dbh _sql_maker debug cursor/);
+
+sub new {
+ my $new = bless({}, ref $_[0] || $_[0]);
+ $new->cursor("DBIx::Class::Storage::DBI::Cursor");
+ $new->debug(1) if $ENV{DBIX_CLASS_STORAGE_DBI_DEBUG};
+ return $new;
}
=head1 NAME
return $self->_dbh;
}
+sub sql_maker {
+ my ($self) = @_;
+ unless ($self->_sql_maker) {
+ $self->_sql_maker(new DBIC::SQL::Abstract( limit_dialect => $self->dbh ));
+ }
+ return $self->_sql_maker;
+}
+
sub _populate_dbh {
my ($self) = @_;
my @info = @{$self->connect_info || []};
sub rollback { $_[0]->dbh->rollback; }
+sub _execute {
+ my ($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);
+ @bind = map { ref $_ ? ''.$_ : $_ } @bind; # stringify args
+ my $rv = $sth->execute(@bind);
+ return (wantarray ? ($rv, $sth, @bind) : $rv);
+}
+
sub insert {
my ($self, $ident, $to_insert) = @_;
- my $sql = $self->create_sql('insert', [ keys %{$to_insert} ], $ident, undef);
- my $sth = $self->sth($sql);
- $sth->execute(values %{$to_insert});
$self->throw( "Couldn't insert ".join(', ', map "$_ => $to_insert->{$_}", keys %$to_insert)." into ${ident}" )
- unless $sth->rows;
+ unless ($self->_execute('insert' => [], $ident, $to_insert) > 0);
return $to_insert;
}
sub update {
- my ($self, $ident, $to_update, $condition) = @_;
- my $attrs = { };
- my $set_sql = $self->_cond_resolve($to_update, $attrs, ',');
- $set_sql =~ s/^\(//;
- $set_sql =~ s/\)$//;
- my $cond_sql = $self->_cond_resolve($condition, $attrs);
- my $sql = $self->create_sql('update', $set_sql, $ident, $cond_sql);
- my $sth = $self->sth($sql);
- my $rows = $sth->execute( @{$attrs->{bind}||[]} );
- return $rows;
+ return shift->_execute('update' => [], @_);
}
sub delete {
- my ($self, $ident, $condition) = @_;
- my $attrs = { };
- my $cond_sql = $self->_cond_resolve($condition, $attrs);
- my $sql = $self->create_sql('delete', undef, $ident, $cond_sql);
- #warn "$sql ".join(', ',@{$attrs->{bind}||[]});
- my $sth = $self->sth($sql);
- return $sth->execute( @{$attrs->{bind}||[]} );
+ return shift->_execute('delete' => [], @_);
}
-sub select {
+sub _select {
my ($self, $ident, $select, $condition, $attrs) = @_;
- $attrs ||= { };
- #my $select_sql = $self->_cond_resolve($select, $attrs, ',');
- my $cond_sql = $self->_cond_resolve($condition, $attrs);
- 1 while $cond_sql =~ s/^\s*\(\s*(.*ORDER.*)\s*\)\s*$/$1/;
- my $sql = $self->create_sql('select', $select, $ident, $cond_sql);
- #warn $sql.' '.join(', ', @{$attrs->{bind}||[]});
- my $sth = $self->sth($sql);
- $sth->execute( @{$attrs->{bind}||[]} );
- return $sth;
+ my $order = $attrs->{order_by};
+ if (ref $condition eq 'SCALAR') {
+ $order = $1 if $$condition =~ s/ORDER BY (.*)$//i;
+ }
+ my @args = ('select', $attrs->{bind}, $ident, $select, $condition, $order);
+ if ($attrs->{software_limit} ||
+ $self->sql_maker->_default_limit_syntax eq "GenericSubQ") {
+ $attrs->{software_limit} = 1;
+ } else {
+ push @args, $attrs->{rows}, $attrs->{offset};
+ }
+ return $self->_execute(@args);
+}
+
+sub select {
+ my $self = shift;
+ my ($ident, $select, $condition, $attrs) = @_;
+ my ($rv, $sth, @bind) = $self->_select(@_);
+ return $self->cursor->new($sth, \@bind, $attrs);
+}
+
+sub select_single {
+ my $self = shift;
+ my ($rv, $sth, @bind) = $self->_select(@_);
+ return $sth->fetchrow_array;
}
sub sth {
=head1 AUTHORS
-Matt S. Trout <perl-stuff@trout.me.uk>
+Matt S. Trout <mst@shadowcatsystems.co.uk>
+
+Andy Grundman <andy@hybridized.org>
=head1 LICENSE
projects / dbsrgits/DBIx-Class.git / blobdiff