Initial Commit

database/perl/vendor/lib/DBIx/Class/CDBICompat/ImaDBI.pm

@@ -0,0 +1,142 @@
+package # hide from PAUSE
+    DBIx::Class::CDBICompat::ImaDBI;
+
+use strict;
+use warnings;
+use DBIx::ContextualFetch;
+use DBIx::Class::_Util qw(quote_sub perlstring);
+
+use base qw(Class::Data::Inheritable);
+
+__PACKAGE__->mk_classdata('sql_transformer_class' =>
+                          'DBIx::Class::CDBICompat::SQLTransformer');
+
+__PACKAGE__->mk_classdata('_transform_sql_handler_order'
+                            => [ qw/TABLE ESSENTIAL JOIN IDENTIFIER/ ] );
+
+__PACKAGE__->mk_classdata('_transform_sql_handlers' =>
+  {
+    'TABLE' =>
+      sub {
+        my ($self, $class, $data) = @_;
+        return $class->result_source_instance->name unless $data;
+        my ($f_class, $alias) = split(/=/, $data);
+        $f_class ||= $class;
+        $self->{_classes}{$alias} = $f_class;
+        return $f_class->result_source_instance->name." ${alias}";
+      },
+    'ESSENTIAL' =>
+      sub {
+        my ($self, $class, $data) = @_;
+        $class = $data ? $self->{_classes}{$data} : $class;
+        return join(', ', $class->columns('Essential'));
+      },
+    'IDENTIFIER' =>
+      sub {
+        my ($self, $class, $data) = @_;
+        $class = $data ? $self->{_classes}{$data} : $class;
+        return join ' AND ', map  "$_ = ?", $class->primary_columns;
+      },
+    'JOIN' =>
+      sub {
+        my ($self, $class, $data) = @_;
+        my ($from, $to) = split(/ /, $data);
+        my ($from_class, $to_class) = @{$self->{_classes}}{$from, $to};
+        my ($rel_obj) = grep { $_->{class} && $_->{class} eq $to_class }
+                          map { $from_class->relationship_info($_) }
+                            $from_class->relationships;
+        unless ($rel_obj) {
+          ($from, $to) = ($to, $from);
+          ($from_class, $to_class) = ($to_class, $from_class);
+          ($rel_obj) = grep { $_->{class} && $_->{class} eq $to_class }
+                          map { $from_class->relationship_info($_) }
+                            $from_class->relationships;
+        }
+        $self->throw_exception( "No relationship to JOIN from ${from_class} to ${to_class}" )
+          unless $rel_obj;
+        my $join = $from_class->storage->sql_maker->_join_condition(
+          scalar $from_class->result_source_instance->_resolve_condition(
+            $rel_obj->{cond}, $to, $from
+          )
+        );
+        return $join;
+      }
+
+  } );
+
+sub db_Main {
+  return $_[0]->storage->dbh;
+}
+
+sub connection {
+  my ($class, @info) = @_;
+  $info[3] = { %{ $info[3] || {}} };
+  $info[3]->{RootClass} = 'DBIx::ContextualFetch';
+  return $class->next::method(@info);
+}
+
+sub __driver {
+  return $_[0]->storage->dbh->{Driver}->{Name};
+}
+
+sub set_sql {
+  my ($class, $name, $sql) = @_;
+
+  quote_sub "${class}::sql_${name}", sprintf( <<'EOC', perlstring $sql );
+    my $class = shift;
+    return $class->storage->dbh_do(
+      _prepare_sth => $class->transform_sql(%s, @_)
+    );
+EOC
+
+
+  if ($sql =~ /select/i) {  # FIXME - this should be anchore surely...?
+    quote_sub "${class}::search_${name}", sprintf( <<'EOC', "sql_$name" );
+      my ($class, @args) = @_;
+      $class->sth_to_objects( $class->%s, \@args);
+EOC
+  }
+}
+
+sub sth_to_objects {
+  my ($class, $sth, $execute_args) = @_;
+
+  $sth->execute(@$execute_args);
+
+  my @ret;
+  while (my $row = $sth->fetchrow_hashref) {
+    push(@ret, $class->inflate_result($class->result_source_instance, $row));
+  }
+
+  return @ret;
+}
+
+sub transform_sql {
+  my ($class, $sql, @args) = @_;
+
+  my $tclass = $class->sql_transformer_class;
+  $class->ensure_class_loaded($tclass);
+  my $t = $tclass->new($class, $sql, @args);
+
+  return sprintf($t->sql, $t->args);
+}
+
+package
+  DBIx::ContextualFetch::st; # HIDE FROM PAUSE THIS IS NOT OUR CLASS
+
+no warnings 'redefine';
+
+sub _untaint_execute {
+  my $sth = shift;
+  my $old_value = $sth->{Taint};
+  $sth->{Taint} = 0;
+  my $ret;
+  {
+    no warnings 'uninitialized';
+    $ret = $sth->SUPER::execute(@_);
+  }
+  $sth->{Taint} = $old_value;
+  return $ret;
+}
+
+1;