package DBIx::DBSchema;
use strict;
-use vars qw($VERSION $DEBUG $errstr);
use Storable;
use DBIx::DBSchema::_util qw(_load_driver _dbh _parse_opt);
use DBIx::DBSchema::Table 0.08;
use DBIx::DBSchema::Index;
use DBIx::DBSchema::Column;
-use DBIx::DBSchema::ColGroup::Unique;
-use DBIx::DBSchema::ColGroup::Index;
+use DBIx::DBSchema::ForeignKey;
-$VERSION = "0.37_04";
+our $VERSION = '0.44';
$VERSION = eval $VERSION; # modperlstyle: convert the string into a number
-$DEBUG = 0;
+our $DEBUG = 0;
+
+our $errstr;
=head1 NAME
you can create a database schema with an OO Perl interface. You can read the
schema from an existing database. You can save the schema to disk and restore
it in a different process. You can write SQL CREATE statements statements for
-different databases from a single source. In recent versions, you can
-transform one schema to another, adding any necessary new columns and tables
-(and, as of 0.33, indices).
+different databases from a single source. You can transform one schema to
+another, adding any necessary new columns, tables, indices and foreign keys.
Currently supported databases are MySQL, PostgreSQL and SQLite. Sybase and
Oracle drivers are partially implemented. DBIx::DBSchema will attempt to use
sub sql {
my($self, $dbh) = ( shift, _dbh(@_) );
- map { $self->table($_)->sql_create_table($dbh); } $self->tables;
+ (
+ ( map { $self->table($_)->sql_create_table($dbh); } $self->tables ),
+ ( map { $self->table($_)->sql_add_constraints($dbh); } $self->tables ),
+ );
}
=item sql_update_schema [ OPTIONS_HASHREF, ] PROTOTYPE_SCHEMA [ DATABASE_HANDLE | DATA_SOURCE [ USERNAME PASSWORD [ ATTR ] ] ]
tables.
See L<DBIx::DBSchema::Table/sql_alter_table>,
-L<DBIx::DBSchema::Column/sql_add_coumn> and
+L<DBIx::DBSchema::Column/sql_add_column> and
L<DBIx::DBSchema::Column/sql_alter_column> for additional specifics and
limitations.
my($self, $opt, $new, $dbh) = ( shift, _parse_opt(\@_), shift, _dbh(@_) );
my @r = ();
+ my @later = ();
foreach my $table ( $new->tables ) {
warn "$table exists\n" if $DEBUG > 1;
- push @r, $self->table($table)->sql_alter_table( $new->table($table),
- $dbh,
- $opt
- );
+ push @r,
+ $self->table($table)->sql_alter_table( $new->table($table),
+ $dbh, $opt );
+ push @later,
+ $self->table($table)->sql_alter_constraints( $new->table($table),
+ $dbh, $opt );
} else {
warn "table $table does not exist.\n" if $DEBUG;
- push @r,
- $new->table($table)->sql_create_table( $dbh );
+ push @r, $new->table($table)->sql_create_table( $dbh );
+ push @later, $new->table($table)->sql_add_constraints( $dbh );
}
}
+ push @r, @later;
+
warn join("\n", @r). "\n"
if $DEBUG > 1;
"'". $table->column($_)->type. "', ".
"'". $table->column($_)->null. "', ".
"'". $table->column($_)->length. "', ".
- "'". $table->column($_)->default. "', ".
+
+ ( ref($table->column($_)->default)
+ ? "\\'". ${ $table->column($_)->default }. "'"
+ : "'". $table->column($_)->default. "'"
+ ).', '.
+
"'". $table->column($_)->local. "',\n"
} $table->columns
).
}
keys %indices
- ). "\n }, \n"
+ ). "\n }, \n".
+
+ #foreign_keys
+ " 'foreign_keys' => [ ". join( ",\n ",
+
+ map { my $name = $_->constraint;
+ "'$name' => { \n".
+ " },\n";
+ }
+ $table->foreign_keys
+
+ ). "\n ], \n"
+
+ ;
} $self->tables
). "}\n";
}
-=cut
-
=item pretty_read HASHREF
This method is B<not> recommended. If you need to load and save your schema
-to a file, see the L</load|load> and L</save|save> methods.
+to a file, see the L</load> and L</save> methods.
Creates a schema as specified by a data structure such as that created by
B<pretty_print> method.
'primary_key' => $info->{'primary_key'},
'columns' => \@columns,
- #old-style indices
- 'unique' => DBIx::DBSchema::ColGroup::Unique->new($info->{'unique'}),
- 'index' => DBIx::DBSchema::ColGroup::Index->new($info->{'index'}),
-
- #new-style indices
+ #indices
'indices' => [ map { my $idx_info = $info->{'indices'}{$_};
DBIx::DBSchema::Index->new({
'name' => $_,
Copyright (c) 2000-2007 Ivan Kohler
Copyright (c) 2000 Mail Abuse Prevention System LLC
-Copyright (c) 2007-2010 Freeside Internet Services, Inc.
+Copyright (c) 2007-2013 Freeside Internet Services, Inc.
All rights reserved.
This program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
Multiple primary keys are not yet supported.
-Foreign keys and other constraints are not yet supported.
-
-sql_update_schema doesn't deal with deleted columns yet.
+Foreign keys: need to support dropping, NOT VALID, reverse engineering w/mysql
Need to port and test with additional databases
Each DBIx::DBSchema object should have a name which corresponds to its name
within the SQL database engine (DBI data source).
+Need to support "using" index attribute in pretty_read and in reverse
+engineering
+
+sql CREATE TABLE output should convert integers
+(i.e. use DBI qw(:sql_types);) to local types using DBI->type_info plus a hash
+to fudge things
+
+=head2 PRETTY_ BUGS
+
pretty_print is actually pretty ugly.
pretty_print isn't so good about quoting values... save/load is a much better
Perhaps pretty_read should eval column types so that we can use DBI
qw(:sql_types) here instead of externally.
-Need to support "using" index attribute in pretty_read and in reverse
-engineering
-
perhaps we should just get rid of pretty_read entirely. pretty_print is useful
for debugging, but pretty_read is pretty bunk.
-sql CREATE TABLE output should convert integers
-(i.e. use DBI qw(:sql_types);) to local types using DBI->type_info plus a hash
-to fudge things
-
=head1 SEE ALSO
L<DBIx::DBSchema::Table>, L<DBIx::DBSchema::Index>,
projects / DBIx-DBSchema.git / blobdiff