I am trying to create a sqlite3 database as a test environment that mimics a production environment. Due to how the installation is done, the tables are in several diagrams.
I set the classes in DBIx :: Class, using $schema->storage->dbh_doto bind the database to the schema and using $schema-deploy()create a database.
However, when it comes to creating a foreign key in the second table, I get the following error:
DBIx::Class::Schema::deploy(): DBIx::Class::Schema::deploy(): DBI Exception: DBD::SQLite::db do failed: near ".": syntax error
Cleaning DBIx::Class, the simplest test for playback is as follows.
sqlite3 initial.db
SQLite version 3.6.23
Enter ".help" for instructions
Enter SQL statements terminated with a ";"
sqlite> attach database 'other.db' as 'other';
sqlite> create table other.a( col1_a, col2_a);
sqlite> create table other.b( col1_b, col2_b, foreign key(col1_b) references other.a(col1_a));
Error: near ".": syntax error
sqlite> create table other.b( col1_b, col2_b, foreign key(col1_b) references a(col1_a));
sqlite>
Removing the schema from the foreign key clause will successfully create the table.
How to create tables in an external schema using DBIx :: Class?
EDIT: A complete selection of code.
package MyApp::Schema;
use base qw/DBIx::Class::Schema/;
__PACKAGE__->load_namespaces();
1;
package MyApp::Schema::Result::A;
use base qw/DBIx::Class::Core/;
__PACKAGE__->table('other_db.A');
__PACKAGE__->add_columns(qw/ a1 a2 /);
__PACKAGE__->set_primary_key('a1');
__PACKAGE__->has_many(bs => 'MyApp::Schema::Result::B', 'b1');
1;
package MyApp::Schema::Result::B;
use base qw/DBIx::Class::Core/;
__PACKAGE__->table('other_db.B');
__PACKAGE__->add_columns(qw/ b1 b2 /);
__PACKAGE__->set_primary_key('b1');
__PACKAGE__->belongs_to(a => 'MyApp::Schema::Result::A', 'b1');
1;
The main script:
use MyApp::Schema;
my $schema = MyApp::Schema->connect('dbi:SQLite:dbname=test.db','','',{});
my $res = $schema->storage->dbh_do(
sub {
my ($storage, $dbh) = @_;
$dbh->do("attach database 'other.db' as other_db");
}
);
$schema->deploy();
Indicated error:
DBIx::Class::Schema::deploy(): DBIx::Class::Schema::deploy(): DBI Exception: DBD::SQLite::db do failed: near ".": syntax error [for Statement "CREATE TABLE other_db.B (
b1 NOT NULL,
b2 NOT NULL,
PRIMARY KEY (b1),
FOREIGN KEY(b1) REFERENCES other_db.A(a1)
)"] at dbi.pl line 17
(running "CREATE TABLE other_db.B (
b1 NOT NULL,
b2 NOT NULL,
PRIMARY KEY (b1),
FOREIGN KEY(b1) REFERENCES other_db.A(a1)
)") at dbi.pl line 17