fix up is_nullable and is_unique being wrong at times

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

diff --git a/lib/SQL/Translator/Parser/DDL/SQLite.pm b/lib/SQL/Translator/Parser/DDL/SQLite.pm
index 181910e..c5406c5 100644 (file)
--- a/lib/SQL/Translator/Parser/DDL/SQLite.pm
+++ b/lib/SQL/Translator/Parser/DDL/SQLite.pm
@@ -1,5 +1,138 @@
-package SQL::Translator::Parser::DDL::SQLite;
-use Moose;
-extends 'SQL::Translator::Parser::DDL';
+use MooseX::Declare;
+role SQL::Translator::Parser::DDL::SQLite {
+    use MooseX::Types::Moose qw(Str);
+    use MooseX::MultiMethods;
+    use Moose::Autobox;
+    use SQL::Translator::Constants qw(:sqlt_types :sqlt_constants);
+    use SQL::Translator::Types qw(Schema);
+    use aliased 'SQL::Translator::Object::Column';
+    use aliased 'SQL::Translator::Object::Constraint';
+    use aliased 'SQL::Translator::Object::ForeignKey';
+    use aliased 'SQL::Translator::Object::Index';
+    use aliased 'SQL::Translator::Object::PrimaryKey';
+    use aliased 'SQL::Translator::Object::Table';
+    use aliased 'SQL::Translator::Object::Trigger';
+    use aliased 'SQL::Translator::Object::View';
 
-1;
+    around _build_data_type_mapping {
+        my $data_type_mapping = $self->$orig;
+        $data_type_mapping->{date} = SQL_DATE();
+
+        return $data_type_mapping;
+    };
+
+    multi method parse(Schema $data) { $data }
+
+    multi method parse(Str $data) {
+        my $translator = $self->translator;
+        my $parser = Parse::RecDescent->new($self->grammar);
+    
+        unless (defined $parser) {
+            return $translator->error("Error instantiating Parse::RecDescent ".
+                "instance: Bad grammar");
+        }
+    
+        my $result = $parser->startrule($data);
+        die "Parse failed" unless defined $result;
+    
+        my $schema = $translator->schema;
+        my @tables = 
+            sort  { $result->{tables}{$a}{order} <=> $result->{tables}{$b}{order} }
+            keys %{ $result->{tables} };
+
+        for my $table_name ( @tables ) {
+            my $tdata = $result->{tables}{ $table_name };
+            my $table = Table->new({ name => $tdata->{name}, schema => $schema });
+            $table->comments( $tdata->{comments}->flatten ) if $tdata->{comments};
+            $schema->add_table($table);
+    
+            for my $fdata ( @{ $tdata->{fields} } ) {
+                my $field = Column->new({
+                    name              => $fdata->{name},
+                    data_type         => $fdata->{data_type},
+                    sql_data_type     => $self->data_type_mapping->{$fdata->{data_type}} || -999999,
+                    size              => $fdata->{size},
+                    default_value     => $fdata->{default},
+                    is_auto_increment => $fdata->{is_auto_inc},
+                    is_nullable       => $fdata->{is_primary_key} ? 0 : $fdata->{is_nullable},
+                    comments          => $fdata->{comments},
+                    table             => $table,
+                });
+
+                $table->add_column($field);
+                $table->primary_key( $field->name ) if $fdata->{is_primary_key};
+
+                for my $cdata ( @{ $fdata->{constraints} } ) {
+                    next unless $cdata->{type} eq 'foreign_key';
+                    $cdata->{fields} ||= [ $field->name ];
+                    push @{ $tdata->{constraints} }, $cdata;
+                }
+            }
+    
+            for my $idata ( @{ $tdata->{indices} || [] } ) {
+                my @columns = delete $idata->{fields};
+                my $index = Index->new({
+                    name    => $idata->{name},
+                    type    => uc $idata->{type},
+                    table   => $table,
+                });
+                $index->add_column($table->get_column(@$_[0])) for @columns;
+                $table->add_index($index);
+            }
+    
+            for my $cdata ( @{ $tdata->{constraints} || [] } ) {
+                my $constraint;
+                if (uc $cdata->{type} eq 'PRIMARY_KEY') {
+                    $constraint = PrimaryKey->new({ name => $cdata->{name} || 'primary_key', table => $table });
+
+                    for my $field (@{$cdata->{fields}}) {
+                        $table->get_column($field)->is_primary_key(1);
+                        $table->get_column($field)->is_nullable(0);
+                        $constraint->add_column($table->get_column($field));
+                    }
+                } elsif (uc $cdata->{type} eq 'FOREIGN_KEY') {
+                    $constraint = ForeignKey->new({ name => $cdata->{name} || 'foreign_key',
+                                                    table => $table,
+                                                    reference_table => $cdata->{reference_table},
+                                                    reference_columns => ref $cdata->{reference_fields} ? $cdata->{reference_fields} : [ $cdata->{reference_fields} ],
+                                                    on_delete => $cdata->{on_delete} || $cdata->{on_delete_do},
+                                                    on_update => $cdata->{on_update} || $cdata->{on_update_do} });
+                    for my $field (@{$cdata->{fields}}) {
+                        $table->get_column($field)->is_foreign_key(1);
+                        $table->get_column($field)->foreign_key_reference($constraint);
+                        $constraint->add_column($table->get_column($field));
+                    }
+                } else {
+                    $constraint = Constraint->new({ name => $cdata->{name} || 'constraint', type => uc $cdata->{type}, table => $table });
+                    if (uc $cdata->{type} eq 'UNIQUE') {
+                        $table->get_column($_)->is_unique(1) for @{$cdata->{fields}};
+                    }
+                    $constraint->add_column($table->get_column($_)) for @{$cdata->{fields}};
+                }
+  
+                $table->add_constraint($constraint);
+            }
+        }
+    
+        for my $def ( @{ $result->{views} || [] } ) {
+            my $view = View->new({
+                name   => $def->{name},
+                fields => $def->{fields},
+                sql    => $def->{sql},
+            });
+            $schema->add_view($view);
+        }
+    
+        for my $def ( @{ $result->{triggers} || [] } ) {
+            my $trigger = Trigger->new({
+                name                => $def->{name},
+                perform_action_when => $def->{when},
+                database_events     => $def->{db_events},
+                action              => $def->{action},
+                on_table            => $def->{on_table},
+            });
+            $schema->add_trigger($trigger);
+        }
+        return 1;
+    }
+}