X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FCDBICompat%2FImaDBI.pm;h=22b7eff08a819eb257160fc420e31238a7c99790;hb=78bab9cad621ac5e3d1d12b02c41d662dec7a22a;hp=37495afce5e84a686836f153ba7e11dec90ac67c;hpb=dbd7896fad83f2233729bab2cb6c12ef8369703e;p=dbsrgits%2FDBIx-Class.git

diff --git a/lib/DBIx/Class/CDBICompat/ImaDBI.pm b/lib/DBIx/Class/CDBICompat/ImaDBI.pm
index 37495af..22b7eff 100644
--- a/lib/DBIx/Class/CDBICompat/ImaDBI.pm
+++ b/lib/DBIx/Class/CDBICompat/ImaDBI.pm
@@ -4,6 +4,52 @@ use strict;
 use warnings;
 
 use NEXT;
+use base qw/Class::Data::Inheritable/;
+
+__PACKAGE__->mk_classdata('_transform_sql_handler_order'
+                            => [ qw/TABLE ESSENTIAL JOIN/ ] );
+
+__PACKAGE__->mk_classdata('_transform_sql_handlers' =>
+  {
+    'TABLE' =>
+      sub {
+        my ($self, $class, $data) = @_;
+        return $class->_table_name unless $data;
+        my ($f_class, $alias) = split(/=/, $data);
+        $f_class ||= $class;
+        $self->{_aliases}{$alias} = $f_class;
+        return $f_class->_table_name." ${alias}";
+      },
+    'ESSENTIAL' =>
+      sub {
+        my ($self, $class, $data) = @_;
+        return join(' ', $class->columns('Essential')) unless $data;
+        return join(' ', $self->{_aliases}{$data}->columns('Essential'));
+      },
+    'JOIN' =>
+      sub {
+        my ($self, $class, $data) = @_;
+        my ($from, $to) = split(/ /, $data);
+        my ($from_class, $to_class) = @{$self->{_aliases}}{$from, $to};
+        my ($rel_obj) = grep { $_->{class} && $_->{class} eq $to_class }
+                          values %{ $from_class->_relationships };
+        unless ($rel_obj) {
+          ($from, $to) = ($to, $from);
+          ($from_class, $to_class) = ($to_class, $from_class);
+          ($rel_obj) = grep { $_->{class} && $_->{class} eq $to_class }
+                         values %{ $from_class->_relationships };
+        }
+        $self->throw( "No relationship to JOIN from ${from_class} to ${to_class}" )
+          unless $rel_obj;
+        my $attrs = {
+          _aliases => { self => $from, foreign => $to },
+          _action => 'join',
+        };
+        my $join = $from_class->_cond_resolve($rel_obj->{cond}, $attrs);
+        return $join;
+      }
+        
+  } );
 
 sub db_Main {
   return $_[0]->_get_dbh;
@@ -20,4 +66,36 @@ sub __driver {
   return $_[0]->_get_dbh->{Driver}->{Name};
 }
 
+sub set_sql {
+  my ($class, $name, $sql) = @_;
+  my $table = $class->_table_name;
+  #$sql =~ s/__TABLE__/$table/;
+  no strict 'refs';
+  *{"${class}::sql_${name}"} =
+    sub {
+      my $sql = $sql;
+      my $class = shift;
+      return $class->_sql_to_sth($class->transform_sql($sql, @_));
+    };
+  if ($sql =~ /select/i) {
+    my $meth = "sql_${name}";
+    *{"${class}::search_${name}"} =
+      sub {
+        my ($class, @args) = @_;
+        $class->sth_to_objects($class->$meth, \@args);
+      };
+  }
+}
+
+sub transform_sql {
+  my ($class, $sql, @args) = @_;
+  my $table = $class->_table_name;
+  my $attrs = { };
+  foreach my $key (@{$class->_transform_sql_handler_order}) {
+    my $h = $class->_transform_sql_handlers->{$key};
+    $sql =~ s/__$key(?:\(([^\)]+)\))?__/$h->($attrs, $class, $1)/eg;
+  }
+  return sprintf($sql, @args);
+}
+
 1;