Adding new DBI and experimental DBI::SQLite parsers.

diff --git a/lib/SQL/Translator/Parser/DBI.pm b/lib/SQL/Translator/Parser/DBI.pm
new file mode 100644 (file)
index 0000000..20a62b4
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+++ b/lib/SQL/Translator/Parser/DBI.pm
@@ -0,0 +1,150 @@
+package SQL::Translator::Parser::DBI;
+
+# -------------------------------------------------------------------
+# $Id: DBI.pm,v 1.1 2003-10-03 00:21:41 kycl4rk Exp $
+# -------------------------------------------------------------------
+# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>,
+#                    darren chamberlain <darren@cpan.org>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; version 2.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+# 02111-1307  USA
+# -------------------------------------------------------------------
+
+=head1 NAME
+
+SQL::Translator::Parser::DBI - "parser" for DBI handles
+
+=head1 SYNOPSIS
+
+  use DBI;
+  use SQL::Translator;
+
+  my $dbh = DBI->connect(...);
+
+  my $translator  =  SQL::Translator->new(
+      parser      => 'DBI',
+      dbh         => $dbh,
+  );
+
+Or:
+
+  use SQL::Translator;
+
+  my $translator  =  SQL::Translator->new(
+      parser      => 'DBI',
+      dsn         => 'dbi:mysql:FOO',
+      db_user     => 'guest',
+      db_password => 'password',
+  );
+
+=head1 DESCRIPTION
+
+This parser accepts an open database handle (or the arguments to create 
+one) and queries the database directly for the information.  The correct
+SQL::Translator::Parser::DBI class is determined automatically by 
+inspecting $dbh->{'Driver'}{'Name'}.
+
+The following are acceptable arguments:
+
+=over
+
+=item * dbh
+
+An open DBI database handle.
+
+=item * dsn
+
+The DSN to use for connecting to a database.
+
+=item * db_user
+
+The user name to use for connecting to a database.
+
+=item * db_password
+
+The password to use for connecting to a database.
+
+=back
+
+=cut
+
+# -------------------------------------------------------------------
+
+use strict;
+use DBI;
+use vars qw($VERSION @EXPORT);
+$VERSION = sprintf "%d.%02d", q$Revision: 1.1 $ =~ /(\d+)\.(\d+)/;
+
+use constant DRIVERS => {
+    sqlite => 'SQLite',
+};
+
+use Exporter;
+use SQL::Translator::Utils qw(debug normalize_name);
+use SQL::Translator::Parser::DBI::SQLite;
+
+use base qw(Exporter);
+@EXPORT = qw(parse);
+
+#
+# Passed a SQL::Translator instance and a string containing the data
+#
+sub parse {
+    my ( $tr, $data ) = @_;
+
+    $tr->debug( "in DBI\n" );
+    my $args          = $tr->parser_args;
+    my $dbh           = $args->{'dbh'};
+    my $dsn           = $args->{'dsn'};
+    my $db_user       = $args->{'db_user'};
+    my $db_password   = $args->{'db_password'};
+
+    unless ( $dbh ) {
+        die 'No DSN' unless $dsn;
+        $dbh = DBI->connect( $dsn, $db_user, $db_password, {RaiseError=>1} );
+    }
+
+    die 'No database handle' unless defined $dbh;
+
+    my $db_type = $dbh->{'Driver'}{'Name'} or die 'Cannot determine DBI type';
+    my $driver  = DRIVERS->{ lc $db_type } or die "$db_type not supported";
+    my $pkg     = "SQL::Translator::Parser::DBI::$driver";
+    my $sub     = $pkg.'::parse';
+
+    $tr->debug( "Calling sub '$sub'\n" );
+
+#    $tr->load( $pkg );
+
+    {
+        no strict 'refs';
+        &{ $sub }( $tr, $dbh ) or die "No result from $pkg";
+    }
+
+    return 1;
+}
+
+1;
+
+# -------------------------------------------------------------------
+=pod
+
+=head1 AUTHOR
+
+Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.
+
+=head1 SEE ALSO
+
+DBI.
+
+=cut

diff --git a/lib/SQL/Translator/Parser/DBI/SQLite.pm b/lib/SQL/Translator/Parser/DBI/SQLite.pm
new file mode 100644 (file)
index 0000000..a4f28c5
--- /dev/null
+++ b/lib/SQL/Translator/Parser/DBI/SQLite.pm
@@ -0,0 +1,88 @@
+package SQL::Translator::Parser::DBI::SQLite;
+
+# -------------------------------------------------------------------
+# $Id: SQLite.pm,v 1.1 2003-10-03 00:21:41 kycl4rk Exp $
+# -------------------------------------------------------------------
+# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; version 2.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+# 02111-1307  USA
+# -------------------------------------------------------------------
+
+=head1 NAME
+
+SQL::Translator::Parser::DBI::SQLite - parser for DBD::SQLite
+
+=head1 SYNOPSIS
+
+See SQL::Translator::Parser::DBI.
+
+=head1 DESCRIPTION
+
+Queries the "sqlite_master" table for schema definition.
+
+=cut
+
+use strict;
+use DBI;
+use SQL::Translator::Parser::SQLite;
+use Data::Dumper;
+
+use vars qw[ $DEBUG $VERSION @EXPORT_OK ];
+$VERSION = sprintf "%d.%02d", q$Revision: 1.1 $ =~ /(\d+)\.(\d+)/;
+$DEBUG   = 0 unless defined $DEBUG;
+
+# -------------------------------------------------------------------
+sub parse {
+    my ( $tr, $dbh ) = @_;
+
+    my $data = $dbh->selectall_arrayref(
+        'select * from sqlite_master', { Columns => {} }
+    );
+
+    $tr->debug( "sqlite_master =\n", Dumper( $data ) );
+
+    my $schema = $tr->schema;
+
+    my $create;
+    for my $rec ( @$data ) {
+        my $sql  =  $rec->{'sql'} or next;
+        $create .= "$sql;\n";
+    }
+
+    $tr->debug( "create =\n$create\n" );
+
+    SQL::Translator::Parser::SQLite::parse( $tr, $create );
+    return 1;
+}
+
+1;
+
+# -------------------------------------------------------------------
+# Where man is not nature is barren.
+# William Blake
+# -------------------------------------------------------------------
+
+=pod
+
+=head1 AUTHOR
+
+Ken Y. Clark E<lt>kclark@cpan.orgE<gt>,
+Chris Mungall E<lt>cjm@fruitfly.orgE<gt>.
+
+=head1 SEE ALSO
+
+perl(1), Parse::RecDescent, SQL::Translator::Schema.
+
+=cut