change from parse_mysql_version to engine_version

[dbsrgits/SQL-Translator-2.0-ish.git] / lib / SQL / Translator.pm

diff --git a/lib/SQL/Translator.pm b/lib/SQL/Translator.pm
index 4e6c57f..f9083fa 100644 (file)
--- a/lib/SQL/Translator.pm
+++ b/lib/SQL/Translator.pm
@@ -40,23 +40,28 @@ class SQL::Translator {
     has 'schema' => (
         isa => Schema,
         is => 'rw',
-        default => sub { SQL::Translator::Object::Schema->new }
+        lazy => 1,
+        default => sub { SQL::Translator::Object::Schema->new },
     );
 
     has 'parser_args' => (
         isa => HashRef,
         is => 'rw',
+        predicate => 'has_parser_args',
     );
 
     has 'producer_args' => (
         isa => HashRef,
         is => 'rw',
+        predicate => 'has_producer_args',
     );
     
     has 'add_drop_table' => (isa => Bool, is => 'rw', default => 0);
     has 'no_comments' => (isa => Bool, is => 'rw', default => 0);
     has 'show_warnings' => (isa => Bool, is => 'rw', default => 1);
     has 'trace' => (isa => Bool, is => 'rw', default => 0);
+    has 'quote_table_names' => (isa => Bool, is => 'rw', default => 0);
+    has 'quote_field_names' => (isa => Bool, is => 'rw', default => 0);
     has 'version' => (isa => Str, is => 'rw');
     has 'filename' => (isa => Str, is => 'rw');
 
@@ -78,9 +83,14 @@ class SQL::Translator {
     method _build__producer {
         my $class = 'SQL::Translator::Producer';
         my $role = $class . '::' . $self->producer;
-    
+
         Class::MOP::load_class($class);
-        try { Class::MOP::load_class($role) } catch ($e) { warn "ERROR: $e"; $role = $class . '::SQL::' . $self->producer; Class::MOP::load_class($role) }
+        try {
+            Class::MOP::load_class($role)
+        } catch ($e) {
+            $role = $class . '::SQL::' . $self->producer;
+            Class::MOP::load_class($role)
+        }
     
         my $producer = $class->new({ translator => $self });
         $role->meta->apply($producer);
@@ -92,15 +102,50 @@ class SQL::Translator {
         if ($parser) {
             $self->_clear_parser;
             $self->parser($parser);
-            $self->schema($self->parse($data));
+            $self->parse($data);
+            $self->schema;
         } elsif ($producer) {
             $self->_clear_producer;
-            $self->schema($self->parse($data)) if $data;
+            $self->parse($data) if $data;
             $self->producer($producer);
-            return $self->produce;
+            $self->produce;
         }
     }
 
     method parser_type { return $self->parser }
     method producer_type { return $self->producer }
+
+    method engine_version(Int|Str $v, Str $target = 'perl') {
+        my @vers;
+
+        # X.Y.Z style 
+        if ( $v =~ / ^ (\d+) \. (\d{1,3}) (?: \. (\d{1,3}) )? $ /x ) {
+            push @vers, $1, $2, $3;
+        }
+
+        # XYYZZ (mysql) style 
+        elsif ( $v =~ / ^ (\d) (\d{2}) (\d{2}) $ /x ) {
+            push @vers, $1, $2, $3;
+        }
+
+        # XX.YYYZZZ (perl) style or simply X 
+        elsif ( $v =~ / ^ (\d+) (?: \. (\d{3}) (\d{3}) )? $ /x ) {
+            push @vers, $1, $2, $3;
+        }
+        else {
+            #how do I croak sanely here?
+            die "Unparseable MySQL version '$v'";
+        }
+
+        if ($target eq 'perl') {
+            return sprintf ('%d.%03d%03d', map { $_ || 0 } (@vers) );
+        }
+        elsif ($target eq 'mysql') {
+            return sprintf ('%d%02d%02d', map { $_ || 0 } (@vers) );
+        }
+        else {
+            #how do I croak sanely here?
+            die "Unknown version target '$target'";
+        }
+    }
 }