package DBIx::Class::Schema::Loader::DBI::SQLAnywhere;
use strict;
use warnings;
use base 'DBIx::Class::Schema::Loader::DBI::Component::QuotedDefault';
use mro 'c3';
use List::MoreUtils 'any';
use namespace::clean;
use DBIx::Class::Schema::Loader::Table ();
our $VERSION = '0.07034_02';
=head1 NAME
DBIx::Class::Schema::Loader::DBI::SQLAnywhere - DBIx::Class::Schema::Loader::DBI
SQL Anywhere Implementation.
=head1 DESCRIPTION
See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base>.
=cut
sub _system_schemas {
return (qw/dbo SYS diagnostics rs_systabgroup SA_DEBUG/);
}
sub _setup {
my $self = shift;
$self->next::method(@_);
$self->preserve_case(1)
unless defined $self->preserve_case;
$self->schema->storage->sql_maker->quote_char('"');
$self->schema->storage->sql_maker->name_sep('.');
$self->db_schema([($self->dbh->selectrow_array('select user'))[0]])
unless $self->db_schema;
if (ref $self->db_schema eq 'ARRAY' && $self->db_schema->[0] eq '%') {
my @users = grep { my $uname = $_; not any { $_ eq $uname } $self->_system_schemas }
@{ $self->dbh->selectcol_arrayref('select user_name from sysuser') };
$self->db_schema(\@users);
}
}
sub _tables_list {
my ($self, $opts) = @_;
my @tables;
foreach my $schema (@{ $self->db_schema }) {
my $sth = $self->dbh->prepare(<<'EOF');
SELECT t.table_name name
FROM systab t
JOIN sysuser u
ON t.creator = u.user_id
WHERE u.user_name = ?
EOF
$sth->execute($schema);
my @table_names = map @$_, @{ $sth->fetchall_arrayref };
foreach my $table_name (@table_names) {
push @tables, DBIx::Class::Schema::Loader::Table->new(
loader => $self,
name => $table_name,
schema => $schema,
);
}
}
return $self->_filter_tables(\@tables, $opts);
}
sub _columns_info_for {
my $self = shift;
my ($table) = @_;
my $result = $self->next::method(@_);
my $dbh = $self->schema->storage->dbh;
while (my ($col, $info) = each %$result) {
my $def = $info->{default_value};
if (ref $def eq 'SCALAR' && $$def eq 'autoincrement') {
delete $info->{default_value};
$info->{is_auto_increment} = 1;
}
my ($user_type) = $dbh->selectrow_array(<<'EOF', {}, $table->schema, $table->name, lc($col));
SELECT ut.type_name
FROM systabcol tc
JOIN systab t
ON tc.table_id = t.table_id
JOIN sysuser u
ON t.creator = u.user_id
JOIN sysusertype ut
ON tc.user_type = ut.type_id
WHERE u.user_name = ? AND t.table_name = ? AND lower(tc.column_name) = ?
EOF
$info->{data_type} = $user_type if defined $user_type;
if ($info->{data_type} eq 'double') {
$info->{data_type} = 'double precision';
}
if ($info->{data_type} =~ /^(?:char|varchar|binary|varbinary)\z/ && ref($info->{size}) eq 'ARRAY') {
$info->{size} = $info->{size}[0];
}
elsif ($info->{data_type} !~ /^(?:char|varchar|binary|varbinary|numeric|decimal)\z/) {
delete $info->{size};
}
my $sth = $dbh->prepare(<<'EOF');
SELECT tc.width, tc.scale
FROM systabcol tc
JOIN systab t
ON t.table_id = tc.table_id
JOIN sysuser u
ON t.creator = u.user_id
WHERE u.user_name = ? AND t.table_name = ? AND lower(tc.column_name) = ?
EOF
$sth->execute($table->schema, $table->name, lc($col));
my ($width, $scale) = $sth->fetchrow_array;
$sth->finish;
if ($info->{data_type} =~ /^(?:numeric|decimal)\z/) {
# We do not check for the default precision/scale, because they can be changed as PUBLIC database options.
$info->{size} = [$width, $scale];
}
elsif ($info->{data_type} =~ /^(?:n(?:varchar|char) | varbit)\z/x) {
$info->{size} = $width;
}
elsif ($info->{data_type} eq 'float') {
$info->{data_type} = 'real';
}
if ((eval { lc ${ $info->{default_value} } }||'') eq 'current timestamp') {
${ $info->{default_value} } = 'current_timestamp';
my $orig_deflt = 'current timestamp';
$info->{original}{default_value} = \$orig_deflt;
}
}
return $result;
}
sub _table_pk_info {
my ($self, $table) = @_;
local $self->dbh->{FetchHashKeyName} = 'NAME_lc';
my $sth = $self->dbh->prepare(qq{sp_pkeys ?, ?});
$sth->execute($table->name, $table->schema);
my @keydata;
while (my $row = $sth->fetchrow_hashref) {
push @keydata, $self->_lc($row->{column_name});
}
return \@keydata;
}
my %sqlany_rules = (
C => 'CASCADE',
D => 'SET DEFAULT',
N => 'SET NULL',
R => 'RESTRICT',
);
sub _table_fk_info {
my ($self, $table) = @_;
my ($local_cols, $remote_cols, $remote_table, $attrs, @rels);
my $sth = $self->dbh->prepare(<<'EOF');
SELECT fki.index_name fk_name, fktc.column_name local_column, pku.user_name remote_schema, pkt.table_name remote_table, pktc.column_name remote_column, on_delete.referential_action, on_update.referential_action
FROM sysfkey fk
JOIN (
select foreign_table_id, foreign_index_id,
row_number() over (partition by foreign_table_id order by foreign_index_id) foreign_key_num
from sysfkey
) fkid
ON fkid.foreign_table_id = fk.foreign_table_id and fkid.foreign_index_id = fk.foreign_index_id
JOIN systab pkt
ON fk.primary_table_id = pkt.table_id
JOIN sysuser pku
ON pkt.creator = pku.user_id
JOIN systab fkt
ON fk.foreign_table_id = fkt.table_id
JOIN sysuser fku
ON fkt.creator = fku.user_id
JOIN sysidx pki
ON fk.primary_table_id = pki.table_id AND fk.primary_index_id = pki.index_id
JOIN sysidx fki
ON fk.foreign_table_id = fki.table_id AND fk.foreign_index_id = fki.index_id
JOIN sysidxcol fkic
ON fkt.table_id = fkic.table_id AND fki.index_id = fkic.index_id
JOIN systabcol pktc
ON pkt.table_id = pktc.table_id AND fkic.primary_column_id = pktc.column_id
JOIN systabcol fktc
ON fkt.table_id = fktc.table_id AND fkic.column_id = fktc.column_id
LEFT JOIN systrigger on_delete
ON on_delete.foreign_table_id = fkt.table_id AND on_delete.foreign_key_id = fkid.foreign_key_num
AND on_delete.event = 'D'
LEFT JOIN systrigger on_update
ON on_update.foreign_table_id = fkt.table_id AND on_update.foreign_key_id = fkid.foreign_key_num
AND on_update.event = 'C'
WHERE fku.user_name = ? AND fkt.table_name = ?
ORDER BY fk.primary_table_id, pktc.column_id
EOF
$sth->execute($table->schema, $table->name);
while (my ($fk, $local_col, $remote_schema, $remote_tab, $remote_col, $on_delete, $on_update)
= $sth->fetchrow_array) {
push @{$local_cols->{$fk}}, $self->_lc($local_col);
push @{$remote_cols->{$fk}}, $self->_lc($remote_col);
$remote_table->{$fk} = DBIx::Class::Schema::Loader::Table->new(
loader => $self,
name => $remote_tab,
schema => $remote_schema,
);
$attrs->{$fk} ||= {
on_delete => $sqlany_rules{$on_delete||''} || 'RESTRICT',
on_update => $sqlany_rules{$on_update||''} || 'RESTRICT',
# We may be able to use the value of the 'CHECK ON COMMIT' option, as it seems
# to be some sort of workaround for lack of deferred constraints. Unclear on
# how good of a substitute it is, and it requires the 'RESTRICT' rule. Also it
# only works for INSERT and UPDATE, not DELETE. Will get back to this.
is_deferrable => 1,
};
}
foreach my $fk (keys %$remote_table) {
push @rels, {
local_columns => $local_cols->{$fk},
remote_columns => $remote_cols->{$fk},
remote_table => $remote_table->{$fk},
attrs => $attrs->{$fk},
};
}
return \@rels;
}
sub _table_uniq_info {
my ($self, $table) = @_;
my $sth = $self->dbh->prepare(<<'EOF');
SELECT c.constraint_name, tc.column_name
FROM sysconstraint c
JOIN systab t
ON c.table_object_id = t.object_id
JOIN sysuser u
ON t.creator = u.user_id
JOIN sysidx i
ON c.ref_object_id = i.object_id
JOIN sysidxcol ic
ON i.table_id = ic.table_id AND i.index_id = ic.index_id
JOIN systabcol tc
ON ic.table_id = tc.table_id AND ic.column_id = tc.column_id
WHERE c.constraint_type = 'U' AND u.user_name = ? AND t.table_name = ?
EOF
$sth->execute($table->schema, $table->name);
my $constraints;
while (my ($constraint_name, $column) = $sth->fetchrow_array) {
push @{$constraints->{$constraint_name}}, $self->_lc($column);
}
my @uniqs = map { [ $_ => $constraints->{$_} ] } keys %$constraints;
return \@uniqs;
}
=head1 SEE ALSO
L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>,
L<DBIx::Class::Schema::Loader::DBI>
=head1 AUTHOR
See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
=head1 LICENSE
This library is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
=cut
1;
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