SQL-Translator
view release on metacpan or search on metacpan
lib/SQL/Translator/Parser/SQLite.pm view on Meta::CPAN
{ $item[1] }
| SQSTRING
| /NULL/i
{ 'NULL' }
| /CURRENT_TIMESTAMP/i
{ 'CURRENT_TIMESTAMP' }
END_OF_GRAMMAR
sub parse {
my ($translator, $data) = @_;
# Enable warnings within the Parse::RecDescent module.
local $::RD_ERRORS = 1
unless defined $::RD_ERRORS; # Make sure the parser dies when it encounters an error
local $::RD_WARN = 1
unless defined $::RD_WARN; # Enable warnings. This will warn on unused rules &c.
local $::RD_HINT = 1
unless defined $::RD_HINT; # Give out hints to help fix problems.
local $::RD_TRACE = $translator->trace ? 1 : undef;
local $DEBUG = $translator->debug;
my $parser = ddl_parser_instance('SQLite');
my $result = $parser->startrule($data);
return $translator->error("Parse failed.") unless defined $result;
warn Dumper($result) if $DEBUG;
my $schema = $translator->schema;
my @tables = map { $_->[1] }
sort { $a->[0] <=> $b->[0] }
map { [ $result->{'tables'}{$_}->{'order'}, $_ ] }
keys %{ $result->{'tables'} };
for my $table_name (@tables) {
my $tdata = $result->{'tables'}{$table_name};
my $table = $schema->add_table(name => $tdata->{'name'},)
or die $schema->error;
$table->comments($tdata->{'comments'});
for my $fdata (@{ $tdata->{'fields'} }) {
my $field = $table->add_field(
name => $fdata->{'name'},
data_type => $fdata->{'data_type'},
size => $fdata->{'size'},
default_value => $fdata->{'default'},
is_auto_increment => $fdata->{'is_auto_inc'},
(
$fdata->{'is_auto_inc'}
? (extra => { auto_increment_type => 'monotonic' })
: ()
),
is_nullable => $fdata->{'is_nullable'},
comments => $fdata->{'comments'},
) or die $table->error;
$table->primary_key($field->name) if $fdata->{'is_primary_key'};
for my $cdata (@{ $fdata->{'constraints'} }) {
next unless $cdata->{'type'} eq 'foreign_key';
$cdata->{'fields'} ||= [ $field->name ];
push @{ $tdata->{'constraints'} }, $cdata;
}
}
for my $idata (@{ $tdata->{'indices'} || [] }) {
my $index = $table->add_index(
name => $idata->{'name'},
type => uc($idata->{'type'} || ''),
fields => $idata->{'fields'},
) or die $table->error;
}
for my $cdata (@{ $tdata->{'constraints'} || [] }) {
my $constraint = $table->add_constraint(
name => $cdata->{'name'},
type => $cdata->{'type'},
fields => $cdata->{'fields'},
reference_table => $cdata->{'reference_table'},
reference_fields => $cdata->{'reference_fields'},
match_type => $cdata->{'match_type'} || '',
on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'},
on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'},
) or die $table->error;
}
}
for my $def (@{ $result->{'views'} || [] }) {
my $view = $schema->add_view(
name => $def->{'name'},
sql => $def->{'sql'},
);
}
for my $def (@{ $result->{'triggers'} || [] }) {
my $view = $schema->add_trigger(
name => $def->{'name'},
perform_action_when => $def->{'when'},
database_events => $def->{'db_events'},
action => $def->{'action'},
on_table => $def->{'on_table'},
scope => 'row', # SQLite only supports row triggers
);
}
return 1;
}
1;
# -------------------------------------------------------------------
# All wholesome food is caught without a net or a trap.
# William Blake
# -------------------------------------------------------------------
=pod
=head1 AUTHOR
Ken Youens-Clark E<lt>kclark@cpan.orgE<gt>.
=head1 SEE ALSO
perl(1), Parse::RecDescent, SQL::Translator::Schema.
=cut
( run in 0.728 second using v1.01-cache-2.11-cpan-ceb78f64989 )