—
—
—

              
package DBIx::Class::Storage::DBI::Informix;
use strict;
use warnings;
use base qw/DBIx::Class::Storage::DBI/;
use mro 'c3';
use Scope::Guard ();
use Context::Preserve 'preserve_context';
use namespace::clean;
__PACKAGE__->sql_limit_dialect ('SkipFirst');
__PACKAGE__->sql_quote_char ('"');
__PACKAGE__->datetime_parser_type (
  'DBIx::Class::Storage::DBI::Informix::DateTime::Format'
);
__PACKAGE__->mk_group_accessors('simple' => '__last_insert_id');
HideShow 12 lines of Pod
=head1 NAME
DBIx::Class::Storage::DBI::Informix - Base Storage Class for Informix Support
=head1 DESCRIPTION
This class implements storage-specific support for the Informix RDBMS
=head1 METHODS
=cut
sub _execute {
  my $self = shift;
  my ($rv, $sth, @rest) = $self->next::method(@_);
  $self->__last_insert_id($sth->{ix_sqlerrd}[1])
    if $self->_perform_autoinc_retrieval;
  return (wantarray ? ($rv, $sth, @rest) : $rv);
}
sub last_insert_id {
  shift->__last_insert_id;
}
sub _exec_svp_begin {
    my ($self, $name) = @_;
    $self->_dbh->do("SAVEPOINT $name");
}
# can't release savepoints
sub _exec_svp_release { 1 }
sub _exec_svp_rollback {
    my ($self, $name) = @_;
    $self->_dbh->do("ROLLBACK TO SAVEPOINT $name")
}
sub with_deferred_fk_checks {
  my ($self, $sub) = @_;
  my $txn_scope_guard = $self->txn_scope_guard;
  $self->_do_query('SET CONSTRAINTS ALL DEFERRED');
  my $sg = Scope::Guard->new(sub {
    $self->_do_query('SET CONSTRAINTS ALL IMMEDIATE');
  });
  return preserve_context { $sub->() } after => sub { $txn_scope_guard->commit };
}
HideShow 39 lines of Pod
=head2 connect_call_datetime_setup
Used as:
  on_connect_call => 'datetime_setup'
In L<connect_info|DBIx::Class::Storage::DBI/connect_info> to set the C<DATE> and
C<DATETIME> formats.
Sets the following environment variables:
    GL_DATE="%m/%d/%Y"
    GL_DATETIME="%Y-%m-%d %H:%M:%S%F5"
The C<DBDATE> and C<DBCENTURY> environment variables are cleared.
B<NOTE:> setting the C<GL_DATE> environment variable seems to have no effect
after the process has started, so the default format is used. The C<GL_DATETIME>
setting does take effect however.
The C<DATETIME> data type supports up to 5 digits after the decimal point for
second precision, depending on how you have declared your column. The full
possible precision is used.
The column declaration for a C<DATETIME> with maximum precision is:
  column_name DATETIME YEAR TO FRACTION(5)
The C<DATE> data type stores the date portion only, and it B<MUST> be declared
with:
  data_type => 'date'
in your Result class.
You will need the L<DateTime::Format::Strptime> module for inflation to work.
=cut
sub connect_call_datetime_setup {
  my $self = shift;
  delete @ENV{qw/DBDATE DBCENTURY/};
  $ENV{GL_DATE}     = "%m/%d/%Y";
  $ENV{GL_DATETIME} = "%Y-%m-%d %H:%M:%S%F5";
}
package # hide from PAUSE
  DBIx::Class::Storage::DBI::Informix::DateTime::Format;
my $timestamp_format = '%Y-%m-%d %H:%M:%S.%5N'; # %F %T
my $date_format      = '%m/%d/%Y';
my ($timestamp_parser, $date_parser);
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);
}
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;
HideShow 10 lines of Pod
=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