Rename vaguely named internal method

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / Storage / DBI / ODBC / Firebird.pm

diff --git a/lib/DBIx/Class/Storage/DBI/ODBC/Firebird.pm b/lib/DBIx/Class/Storage/DBI/ODBC/Firebird.pm
index 58a3675..6f6acdf 100644 (file)
--- a/lib/DBIx/Class/Storage/DBI/ODBC/Firebird.pm
+++ b/lib/DBIx/Class/Storage/DBI/ODBC/Firebird.pm
@@ -10,7 +10,7 @@ use mro 'c3';
 DBIx::Class::Storage::DBI::ODBC::Firebird - Driver for using the Firebird RDBMS
 through ODBC
 
-=head1 SYNOPSIS
+=head1 DESCRIPTION
 
 Most functionality is provided by L<DBIx::Class::Storage::DBI::Interbase>, see
 that module for details.
@@ -19,31 +19,71 @@ To build the ODBC driver for Firebird on Linux for unixODBC, see:
 
 L<http://www.firebirdnews.org/?p=1324>
 
+This driver does not suffer from the nested statement handles across commits
+issue that the L<DBD::InterBase|DBIx::Class::Storage::DBI::InterBase> based
+driver does. This makes it more suitable for long running processes such as
+under L<Catalyst>.
+
 =cut
 
-# XXX seemingly no equivalent to ib_time_all in DBD::InterBase via ODBC
+# XXX seemingly no equivalent to ib_time_all from DBD::InterBase via ODBC
 sub connect_call_datetime_setup { 1 }
 
-# from MSSQL
+# we don't need DBD::InterBase-specific initialization
+sub _init { 1 }
+
+# ODBC uses dialect 3 by default, good
+sub _set_sql_dialect { 1 }
+
+# releasing savepoints doesn't work, but that shouldn't matter
+sub _svp_release { 1 }
+
+sub datetime_parser_type {
+  'DBIx::Class::Storage::DBI::ODBC::Firebird::DateTime::Format'
+}
+
+package # hide from PAUSE
+  DBIx::Class::Storage::DBI::ODBC::Firebird::DateTime::Format;
+
+# inherit parse/format date
+our @ISA = 'DBIx::Class::Storage::DBI::InterBase::DateTime::Format';
+
+my $timestamp_format = '%Y-%m-%d %H:%M:%S'; # %F %T, no fractional part
+my $timestamp_parser;
 
-sub build_datetime_parser {
-  my $self = shift;
-  my $type = "DateTime::Format::Strptime";
-  eval "use ${type}";
-  $self->throw_exception("Couldn't load ${type}: $@") if $@;
-  return $type->new(
-    pattern => '%Y-%m-%d %H:%M:%S', # %F %T
+sub parse_datetime {
+  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;
+  $timestamp_parser ||= DateTime::Format::Strptime->new(
+    pattern  => $timestamp_format,
+    on_error => 'croak',
+  );
+  return $timestamp_parser->format_datetime(shift);
 }
 
 1;
 
 =head1 CAVEATS
 
+=over 4
+
+=item *
+
 This driver (unlike L<DBD::InterBase>) does not currently support reading or
 writing C<TIMESTAMP> values with sub-second precision.
 
+=back
+
 =head1 AUTHOR
 
 See L<DBIx::Class/AUTHOR> and L<DBIx::Class/CONTRIBUTORS>.