X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FStorage%2FDBI%2FInterBase.pm;h=2ba25424278b551cce2b8706b6a69016d01fdf52;hb=c58270743fa0bebf1410d02136b3f82ec8838feb;hp=0d92cb36fd00095420e1bb98c815de23f806968f;hpb=6e8d182b723a69a1ced6ca91b27b02d8a860379f;p=dbsrgits%2FDBIx-Class-Historic.git

diff --git a/lib/DBIx/Class/Storage/DBI/InterBase.pm b/lib/DBIx/Class/Storage/DBI/InterBase.pm
index 0d92cb3..2ba2542 100644
--- a/lib/DBIx/Class/Storage/DBI/InterBase.pm
+++ b/lib/DBIx/Class/Storage/DBI/InterBase.pm
@@ -12,12 +12,27 @@ __PACKAGE__->mk_group_accessors(simple => qw/
   _auto_incs
 /);
 
+=head1 NAME
+
+DBIx::Class::Storage::DBI::InterBase - Driver for the Firebird RDBMS
+
+=head1 DESCRIPTION
+
+This class implements autoincrements for Firebird using C<RETURNING>, sets the
+limit dialect to C<FIRST X SKIP X> and provides preliminary
+L<DBIx::Class::InflateColumn::DateTime> support.
+
+For ODBC support, see L<DBIx::Class::Storage::DBI::ODBC::Firebird>.
+
+To turn on L<DBIx::Class::InflateColumn::DateTime> support, see
+L</connect_call_datetime_setup>.
+
+=cut
+
 sub _prep_for_execute {
   my $self = shift;
   my ($op, $extra_bind, $ident, $args) = @_;
 
-  my ($sql, $bind) = $self->next::method (@_);
-
   if ($op eq 'insert') {
     my @pk = $ident->primary_columns;
     my %pk;
@@ -36,24 +51,14 @@ sub _prep_for_execute {
     } $ident->columns;
 
     if (@auto_inc_cols) {
-      my $auto_inc_cols =
-        join ', ',
-        map $self->_quote_column_for_returning($_), @auto_inc_cols;
-
-      $sql .= " RETURNING ($auto_inc_cols)";
+      $args->[1]{returning} = \@auto_inc_cols;
 
       $self->_auto_incs([]);
       $self->_auto_incs->[0] = \@auto_inc_cols;
     }
   }
 
-  return ($sql, $bind);
-}
-
-sub _quote_column_for_returning {
-  my ($self, $col) = @_;
-
-  return $self->sql_maker->_quote($col);
+  return $self->next::method(@_);
 }
 
 sub _execute {
@@ -100,29 +105,180 @@ sub _sql_maker_opts {
   return { limit_dialect => 'FirstSkip', %{$self->{_sql_maker_opts}||{}} };
 }
 
-sub datetime_parser_type { __PACKAGE__ }
+sub _svp_begin {
+    my ($self, $name) = @_;
+
+    $self->_get_dbh->do("SAVEPOINT $name");
+}
+
+sub _svp_release {
+    my ($self, $name) = @_;
+
+    $self->_get_dbh->do("RELEASE SAVEPOINT $name");
+}
+
+sub _svp_rollback {
+    my ($self, $name) = @_;
+
+    $self->_get_dbh->do("ROLLBACK TO SAVEPOINT $name")
+}
+
+sub _ping {
+  my $self = shift;
+
+  my $dbh = $self->_dbh or return 0;
+
+  local $dbh->{RaiseError} = 1;
+
+  eval {
+    $dbh->do('select 1 from rdb$database');
+  };
+
+  return $@ ? 0 : 1;
+}
+
+# We want dialect 3 for new features and quoting to work, DBD::InterBase uses
+# dialect 1 (interbase compat) by default.
+sub _init {
+  my $self = shift;
+  $self->_set_sql_dialect(3);
+}
+
+sub _set_sql_dialect {
+  my $self = shift;
+  my $val  = shift || 3;
+
+  my $dsn = $self->_dbi_connect_info->[0];
+
+  return if ref($dsn) eq 'CODE';
+
+  if ($dsn !~ /ib_dialect=/) {
+    $self->_dbi_connect_info->[0] = "$dsn;ib_dialect=$val";
+    my $connected = defined $self->_dbh;
+    $self->disconnect;
+    $self->ensure_connected if $connected;
+  }
+}
+
+# softcommit makes savepoints work
+sub _run_connection_actions {
+  my $self = shift;
+
+  $self->_dbh->{ib_softcommit} = 1;
+
+  $self->next::method(@_);
+}
+
+=head2 connect_call_datetime_setup
+
+Used as:
+
+  on_connect_call => 'datetime_setup'
+
+In L<DBIx::Class::Storage::DBI/connect_info> to set the date and timestamp
+formats using:
+
+  $dbh->{ib_time_all} = 'ISO';
+
+See L<DBD::InterBase> for more details.
+
+The C<TIMESTAMP> data type supports up to 4 digits after the decimal point for
+second precision. The full precision is used.
 
-my ($datetime_parser, $datetime_formatter);
+The C<DATE> data type stores the date portion only, and it B<MUST> be declared
+with:
+
+  data_type => 'date'
+
+in your Result class.
+
+Timestamp columns can be declared with either C<datetime> or C<timestamp>.
+
+You will need the L<DateTime::Format::Strptime> module for inflation to work.
+
+For L<DBIx::Class::Storage::DBI::ODBC::Firebird>, this is a noop and sub-second
+precision is not currently available.
+
+=cut
+
+sub connect_call_datetime_setup {
+  my $self = shift;
+
+  $self->_get_dbh->{ib_time_all} = 'ISO';
+}
+
+sub datetime_parser_type {
+  'DBIx::Class::Storage::DBI::InterBase::DateTime::Format'
+}
+
+package # hide from PAUSE
+  DBIx::Class::Storage::DBI::InterBase::DateTime::Format;
+
+my $timestamp_format = '%Y-%m-%d %H:%M:%S.%4N'; # %F %T
+my $date_format      = '%Y-%m-%d';
+
+my ($timestamp_parser, $date_parser);
 
 sub parse_datetime {
-    shift;
-    require DateTime::Format::Strptime;
-    $datetime_parser ||= DateTime::Format::Strptime->new(
-        pattern => '%a %d %b %Y %r',
-# there should be a %Z (TZ) on the end, but it's ambiguous and not parsed
-        on_error => 'croak',
-    );
-    $datetime_parser->parse_datetime(shift);
+  shift;
+  require DateTime::Format::Strptime;
+  $timestamp_parser ||= DateTime::Format::Strptime->new(
+    pattern  => $timestamp_format,
+    on_error => 'croak',
+  );
+  return $timestamp_parser->parse_datetime(shift);
 }
 
 sub format_datetime {
-    shift;
-    require DateTime::Format::Strptime;
-    $datetime_formatter ||= DateTime::Format::Strptime->new(
-        pattern => '%F %H:%M:%S.%4N',
-        on_error => 'croak',
-    );
-    $datetime_formatter->format_datetime(shift);
+  shift;
+  require DateTime::Format::Strptime;
+  $timestamp_parser ||= DateTime::Format::Strptime->new(
+    pattern  => $timestamp_format,
+    on_error => 'croak',
+  );
+  return $timestamp_parser->format_datetime(shift);
+}
+
+sub parse_date {
+  shift;
+  require DateTime::Format::Strptime;
+  $date_parser ||= DateTime::Format::Strptime->new(
+    pattern  => $date_format,
+    on_error => 'croak',
+  );
+  return $date_parser->parse_datetime(shift);
+}
+
+sub format_date {
+  shift;
+  require DateTime::Format::Strptime;
+  $date_parser ||= DateTime::Format::Strptime->new(
+    pattern  => $date_format,
+    on_error => 'croak',
+  );
+  return $date_parser->format_datetime(shift);
 }
 
 1;
+
+=head1 CAVEATS
+
+=over 4
+
+=item *
+
+C<last_insert_id> support only works for Firebird versions 2 or greater. To
+work with earlier versions, we'll need to figure out how to retrieve the bodies
+of C<BEFORE INSERT> triggers and parse them for the C<GENERATOR> name.
+
+=back
+
+=head1 AUTHOR
+
+See L<DBIx::Class/AUTHOR> and L<DBIx::Class/CONTRIBUTORS>.
+
+=head1 LICENSE
+
+You may distribute this code under the same terms as Perl itself.
+
+=cut