use Getopt::Long;
use MyApp::Schema;
- my ( $preversion, $help );
+ my ( $preversion, $help );
GetOptions(
'p|preversion:s' => \$preversion,
) or die pod2usage;
and we can safely deploy the DDL to it. However things are not always so simple.
if you want to initialise a pre-existing database where the DDL is not the same
-as the DDL for your current schema version then you will need a diff which
+as the DDL for your current schema version then you will need a diff which
converts the database's DDL to the current DDL. The best way to do this is
to get a dump of the database schema (without data) and save that in your
SQL directory as version 0.000 (the filename must be as with
-L<DBIx::Class::Schema/ddl_filename>) then create a diff using your create DDL
+L<DBIx::Class::Schema/ddl_filename>) then create a diff using your create DDL
script given above from version 0.000 to the current version. Then hand check
-and if necessary edit the resulting diff to ensure that it will apply. Once you have
+and if necessary edit the resulting diff to ensure that it will apply. Once you have
done all that you can do this:
if (!$schema->get_db_version()) {
$schema->upgrade();
In the case of an unversioned database the above code will create the
-dbix_class_schema_versions table and write version 0.000 to it, then
+dbix_class_schema_versions table and write version 0.000 to it, then
upgrade will then apply the diff we talked about creating in the previous paragraph
and then you're good to go.
=back
-Virtual method that should be overriden to create an upgrade file.
-This is useful in the case of upgrading across multiple versions
+Virtual method that should be overridden to create an upgrade file.
+This is useful in the case of upgrading across multiple versions
to concatenate several files to create one upgrade file.
You'll probably want the db_version retrieved via $self->get_db_version
-and the schema_version which is retrieved via $self->schema_version
+and the schema_version which is retrieved via $self->schema_version
=cut
=back
-Virtual method that should be overriden to return an ordered list
+Virtual method that should be overridden to return an ordered list
of schema versions. This is then used to produce a set of steps to
upgrade through to achieve the required schema version.
You may want the db_version retrieved via $self->get_db_version
-and the schema_version which is retrieved via $self->schema_version
+and the schema_version which is retrieved via $self->schema_version
=cut
sub ordered_schema_versions {
- ## override this method
+ ## override this method
}
=head2 upgrade
}
# strangely the first time this is called can
- # differ to subsequent times. so we call it
+ # differ to subsequent times. so we call it
# here to be sure.
# XXX - just fix it
$self->storage->sqlt_type;
allows you to run your upgrade any way you please, you can call C<run_upgrade>
any number of times to run the actual SQL commands, and in between you can
sandwich your data upgrading. For example, first run all the B<CREATE>
-commands, then migrate your data from old to new tables/formats, then
+commands, then migrate your data from old to new tables/formats, then
issue the DROP commands when you are finished. Will run the whole file as it is by default.
=cut
{
my ($self) = @_;
- # just run all the commands (including inserts) in order
+ # just run all the commands (including inserts) in order
$self->run_upgrade(qr/.*?/);
}
$self->_filedata([ grep { $_ !~ /$stm/i } @{$self->_filedata} ]);
for (@statements)
- {
+ {
$self->storage->debugobj->query_start($_) if $self->storage->debug;
$self->apply_statement($_);
$self->storage->debugobj->query_end($_) if $self->storage->debug;
my ($self, $rs) = @_;
my $vtable = $self->{vschema}->resultset('Table');
- my $version = 0;
- eval {
- my $stamp = $vtable->get_column('installed')->max;
- $version = $vtable->search({ installed => $stamp })->first->version;
+ my $version = eval {
+ $vtable->search({}, { order_by => { -desc => 'installed' }, rows => 1 } )
+ ->get_column ('version')
+ ->next;
};
- return $version;
+ return $version || 0;
}
=head2 schema_version
This is an overwritable method which is called just before the upgrade, to
allow you to make a backup of the database. Per default this method attempts
to call C<< $self->storage->backup >>, to run the standard backup on each
-database type.
+database type.
This method should return the name of the backup file, if appropriate..
return;
}
- $self->throw_exception($self->storage->_sqlt_version_error)
- if (not $self->storage->_sqlt_version_ok);
+ unless (DBIx::Class::Optional::Dependencies->req_ok_for ('deploy')) {
+ $self->throw_exception("Unable to proceed without " . DBIx::Class::Optional::Dependencies->req_missing_for ('deploy') );
+ }
my $db_tr = SQL::Translator->new({
add_drop_table => 1,
$tr->parser->($tr, $$data);
}
- my $diff = SQL::Translator::Diff::schema_diff($db_tr->schema, $db,
+ my $diff = SQL::Translator::Diff::schema_diff($db_tr->schema, $db,
$dbic_tr->schema, $db,
{ ignore_constraint_names => 1, ignore_index_names => 1, caseopt => 1 });
my $self = shift;
my $file = shift || return;
- my $fh;
- open $fh, "<$file" or carp("Can't open upgrade file, $file ($!)");
- my @data = split(/\n/, join('', <$fh>));
- @data = grep(!/^--/, @data);
- @data = split(/;/, join('', @data));
- close($fh);
- @data = grep { $_ && $_ !~ /^-- / } @data;
- @data = grep { $_ !~ /^(BEGIN|BEGIN TRANSACTION|COMMIT)/m } @data;
+ open my $fh, '<', $file or carp("Can't open upgrade file, $file ($!)");
+ my @data = split /\n/, join '', <$fh>;
+ close $fh;
+
+ @data = grep {
+ $_ &&
+ !/^--/ &&
+ !/^(BEGIN|BEGIN TRANSACTION|COMMIT)/m
+ } split /;/,
+ join '', @data;
+
return \@data;
}
projects / dbsrgits/DBIx-Class.git / blobdiff