1 package DBIx::Class::Storage::DBI::Informix;
5 use base qw/DBIx::Class::Storage::DBI/;
9 use Context::Preserve 'preserve_context';
12 __PACKAGE__->sql_limit_dialect ('SkipFirst');
13 __PACKAGE__->sql_quote_char ('"');
14 __PACKAGE__->datetime_parser_type (
15 'DBIx::Class::Storage::DBI::Informix::DateTime::Format'
19 __PACKAGE__->mk_group_accessors('simple' => '__last_insert_id');
23 DBIx::Class::Storage::DBI::Informix - Base Storage Class for Informix Support
27 This class implements storage-specific support for the Informix RDBMS
35 my ($rv, $sth, @rest) = $self->next::method(@_);
37 $self->__last_insert_id($sth->{ix_sqlerrd}[1])
38 if $self->_perform_autoinc_retrieval;
40 return (wantarray ? ($rv, $sth, @rest) : $rv);
44 shift->__last_insert_id;
48 my ($self, $name) = @_;
50 $self->_dbh->do("SAVEPOINT $name");
53 # can't release savepoints
54 sub _exec_svp_release { 1 }
56 sub _exec_svp_rollback {
57 my ($self, $name) = @_;
59 $self->_dbh->do("ROLLBACK TO SAVEPOINT $name")
62 sub with_deferred_fk_checks {
63 my ($self, $sub) = @_;
65 my $txn_scope_guard = $self->txn_scope_guard;
67 $self->_do_query('SET CONSTRAINTS ALL DEFERRED');
69 return preserve_context {
70 my $inner_self = $self; # avoid nested closure leak on 5.8
71 my $sg = Scope::Guard->new(sub {
72 $inner_self->_do_query('SET CONSTRAINTS ALL IMMEDIATE');
75 } after => sub { $txn_scope_guard->commit };
78 =head2 connect_call_datetime_setup
82 on_connect_call => 'datetime_setup'
84 In L<connect_info|DBIx::Class::Storage::DBI/connect_info> to set the C<DATE> and
87 Sets the following environment variables:
90 GL_DATETIME="%Y-%m-%d %H:%M:%S%F5"
92 The C<DBDATE> and C<DBCENTURY> environment variables are cleared.
94 B<NOTE:> setting the C<GL_DATE> environment variable seems to have no effect
95 after the process has started, so the default format is used. The C<GL_DATETIME>
96 setting does take effect however.
98 The C<DATETIME> data type supports up to 5 digits after the decimal point for
99 second precision, depending on how you have declared your column. The full
100 possible precision is used.
102 The column declaration for a C<DATETIME> with maximum precision is:
104 column_name DATETIME YEAR TO FRACTION(5)
106 The C<DATE> data type stores the date portion only, and it B<MUST> be declared
111 in your Result class.
113 You will need the L<DateTime::Format::Strptime> module for inflation to work.
117 sub connect_call_datetime_setup {
120 delete @ENV{qw/DBDATE DBCENTURY/};
122 $ENV{GL_DATE} = "%m/%d/%Y";
123 $ENV{GL_DATETIME} = "%Y-%m-%d %H:%M:%S%F5";
126 package # hide from PAUSE
127 DBIx::Class::Storage::DBI::Informix::DateTime::Format;
129 my $timestamp_format = '%Y-%m-%d %H:%M:%S.%5N'; # %F %T
130 my $date_format = '%m/%d/%Y';
132 my ($timestamp_parser, $date_parser);
136 require DateTime::Format::Strptime;
137 $timestamp_parser ||= DateTime::Format::Strptime->new(
138 pattern => $timestamp_format,
141 return $timestamp_parser->parse_datetime(shift);
144 sub format_datetime {
146 require DateTime::Format::Strptime;
147 $timestamp_parser ||= DateTime::Format::Strptime->new(
148 pattern => $timestamp_format,
151 return $timestamp_parser->format_datetime(shift);
156 require DateTime::Format::Strptime;
157 $date_parser ||= DateTime::Format::Strptime->new(
158 pattern => $date_format,
161 return $date_parser->parse_datetime(shift);
166 require DateTime::Format::Strptime;
167 $date_parser ||= DateTime::Format::Strptime->new(
168 pattern => $date_format,
171 return $date_parser->format_datetime(shift);
174 =head1 FURTHER QUESTIONS?
176 Check the list of L<additional DBIC resources|DBIx::Class/GETTING HELP/SUPPORT>.
178 =head1 COPYRIGHT AND LICENSE
180 This module is free software L<copyright|DBIx::Class/COPYRIGHT AND LICENSE>
181 by the L<DBIx::Class (DBIC) authors|DBIx::Class/AUTHORS>. You can
182 redistribute it and/or modify it under the same terms as the
183 L<DBIx::Class library|DBIx::Class/COPYRIGHT AND LICENSE>.