1 package DBIx::Class::Schema::Loader::DBI::Informix;
6 use base qw/DBIx::Class::Schema::Loader::DBI/;
7 use namespace::autoclean;
8 use Carp::Clan qw/^DBIx::Class/;
9 use Scalar::Util 'looks_like_number';
11 our $VERSION = '0.07000';
15 DBIx::Class::Schema::Loader::DBI::Informix - DBIx::Class::Schema::Loader::DBI
16 Informix Implementation.
20 See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base>.
27 $self->next::method(@_);
29 if (not defined $self->preserve_case) {
30 $self->preserve_case(0);
32 elsif ($self->preserve_case) {
33 $self->schema->storage->sql_maker->quote_char('"');
34 $self->schema->storage->sql_maker->name_sep('.');
39 my ($self, $opts) = @_;
41 my $dbh = $self->schema->storage->dbh;
42 my $sth = $dbh->prepare(<<'EOF');
43 select tabname from systables t
44 where t.owner <> 'informix' and t.owner <> '' and t.tabname <> ' VERSION'
48 my @tables = map @$_, @{ $sth->fetchall_arrayref };
50 return $self->_filter_tables(\@tables, $opts);
53 sub _constraints_for {
54 my ($self, $table, $type) = @_;
56 my $dbh = $self->schema->storage->dbh;
57 local $dbh->{FetchHashKeyName} = 'NAME_lc';
59 my $sth = $dbh->prepare(<<'EOF');
60 select c.constrname, i.*
62 join systables t on t.tabid = c.tabid
63 join sysindexes i on c.idxname = i.idxname
64 where t.tabname = ? and c.constrtype = ?
66 $sth->execute($table, $type);
67 my $indexes = $sth->fetchall_hashref('constrname');
70 my $cols = $self->_colnames_by_colno($table);
73 while (my ($constr_name, $idx_def) = each %$indexes) {
74 $constraints->{$constr_name} = $self->_idx_colnames($idx_def, $cols);
81 my ($self, $idx_info, $table_cols_by_colno) = @_;
83 return [ map $self->_lc($table_cols_by_colno->{$_}), grep $_, map $idx_info->{$_}, map "part$_", (1..16) ];
86 sub _colnames_by_colno {
87 my ($self, $table) = @_;
89 my $dbh = $self->schema->storage->dbh;
90 local $dbh->{FetchHashKeyName} = 'NAME_lc';
92 my $sth = $dbh->prepare(<<'EOF');
93 select c.colname, c.colno
95 join systables t on c.tabid = t.tabid
98 $sth->execute($table);
99 my $cols = $sth->fetchall_hashref('colno');
100 $cols = { map +($_, $cols->{$_}{colname}), keys %$cols };
106 my ($self, $table) = @_;
108 my $pk = (values %{ $self->_constraints_for($table, 'P') || {} })[0];
113 sub _table_uniq_info {
114 my ($self, $table) = @_;
116 my $constraints = $self->_constraints_for($table, 'U');
118 my @uniqs = map { [ $_ => $constraints->{$_} ] } keys %$constraints;
123 my ($self, $table) = @_;
125 my $local_columns = $self->_constraints_for($table, 'R');
127 my $dbh = $self->schema->storage->dbh;
128 local $dbh->{FetchHashKeyName} = 'NAME_lc';
130 my $sth = $dbh->prepare(<<'EOF');
131 select c.constrname local_constraint, rt.tabname remote_table, rc.constrname remote_constraint, ri.*
132 from sysconstraints c
133 join systables t on c.tabid = t.tabid
134 join sysreferences r on c.constrid = r.constrid
135 join sysconstraints rc on rc.constrid = r.primary
136 join systables rt on r.ptabid = rt.tabid
137 join sysindexes ri on rc.idxname = ri.idxname
138 where t.tabname = ? and c.constrtype = 'R'
140 $sth->execute($table);
141 my $remotes = $sth->fetchall_hashref('local_constraint');
146 while (my ($local_constraint, $remote_info) = each %$remotes) {
148 local_columns => $local_columns->{$local_constraint},
149 remote_columns => $self->_idx_colnames($remote_info, $self->_colnames_by_colno($remote_info->{remote_table})),
150 remote_table => $remote_info->{remote_table},
157 sub _columns_info_for {
161 my $result = $self->next::method(@_);
163 my $dbh = $self->schema->storage->dbh;
164 local $dbh->{FetchHashKeyName} = 'NAME_lc';
166 my $sth = $dbh->prepare(<<'EOF');
167 select c.colname, c.coltype, d.type deflt_type, d.default deflt
169 join systables t on c.tabid = t.tabid
170 left join sysdefaults d on t.tabid = d.tabid and c.colno = d.colno
173 $sth->execute($table);
174 my $cols = $sth->fetchall_hashref('colname');
177 while (my ($col, $info) = each %$cols) {
178 my $type = $info->{coltype} % 256;
180 if ($type == 6) { # SERIAL
181 $result->{$col}{is_auto_increment} = 1;
184 if (looks_like_number $result->{$col}{data_type}) {
186 $result->{$col}{data_type} = 'date';
188 elsif ($type == 10) {
189 $result->{$col}{data_type} = 'datetime year to fraction(5)';
193 my ($default_type, $default) = @{$info}{qw/deflt_type deflt/};
195 next unless $default_type;
197 if ($default_type eq 'C') {
198 my $current = 'CURRENT YEAR TO FRACTION(5)';
199 $result->{$col}{default_value} = \$current;
201 elsif ($default_type eq 'T') {
203 $result->{$col}{default_value} = \$today;
206 $default = (split ' ', $default, 2)[-1];
208 $default =~ s/\s+\z// if looks_like_number $default;
210 # remove trailing 0s in floating point defaults
211 # disabled, this is unsafe since it might be a varchar default
212 #$default =~ s/0+\z// if $default =~ /^\d+\.\d+\z/;
214 $result->{$col}{default_value} = $default;
223 L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>,
224 L<DBIx::Class::Schema::Loader::DBI>
228 See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
232 This library is free software; you can redistribute it and/or modify it under
233 the same terms as Perl itself.
238 # vim:et sw=4 sts=4 tw=0: