use strict;
use Class::MakeMethods::Template::Hash (
new => [ 'new' ],
- hash => [ qw( many ) ],
- hash_of_arrays => [ qw( many_via) ],
+ 'array' => [ qw( many ) ],
+ hash_of_arrays => [ qw( one2one one2many many2one many2many) ],
scalar => [ qw( base name order primary_key primary_key_accessor table) ],
);
package SQL::Translator::Producer::Turnkey;
# -------------------------------------------------------------------
-# $Id: Turnkey.pm,v 1.2 2003-08-29 05:38:56 allenday Exp $
+# $Id: Turnkey.pm,v 1.3 2003-08-29 08:00:51 allenday Exp $
# -------------------------------------------------------------------
# Copyright (C) 2003 Allen Day <allenday@ucla.edu>,
# Brian O'Connor <boconnor@ucla.edu>,
use strict;
use vars qw[ $VERSION $DEBUG ];
-$VERSION = sprintf "%d.%02d", q$Revision: 1.2 $ =~ /(\d+)\.(\d+)/;
+$VERSION = sprintf "%d.%02d", q$Revision: 1.3 $ =~ /(\d+)\.(\d+)/;
$DEBUG = 1 unless defined $DEBUG;
use SQL::Translator::Schema::Constants;
my %packages;
my $order;
-
+ #
+ # build package objects
+ #
foreach my $table ($schema->get_tables){
die __PACKAGE__." table ".$table->name." doesn't have a primary key!" unless $table->primary_key;
die __PACKAGE__." table ".$table->name." can't have a composite primary key!" if ($table->primary_key->fields)[1];
defined($t->format_pk_name) ? $t->format_pk_name->( $package->name, $package->primary_key )
: undef
);
+
+ foreach my $field ($table->get_fields){
+ next unless $field->is_foreign_key;
+
+ $package->push_many( $field->foreign_key_reference->reference_table );
+ }
}
+ #
+ # identify FK relationships
+ #
foreach my $maylink ( $schema->get_tables ){
foreach my $left ($schema->get_tables){
foreach my $right ($schema->get_tables){
next if $left->name eq $right->name;
- if( $maylink->can_link($left,$right) ){
-
- $lpackage = $packages{$left->name};
- $rpackage = $packages{$right->name};
-
- $lpackage->many_via($rpackage => $maylink);
- $rpackage->many_via($lpackage => $maylink);
-# $linktable{ $maylink->name } = $maylink;
+ my $lpackage = $packages{$left->name};
+ my $rpackage = $packages{$right->name};
+
+warn $left->name, "\t", $right->name;
+ my($link,$lconstraints,$rconstraints) = @{ $maylink->can_link($left,$right) };
+
+ #one FK to one FK
+ if( $link eq 'one2one'){
+warn "\tone2one";
+ $lpackage->one2one_push($rpackage->name, [$rpackage, $maylink]);
+ $rpackage->one2one_push($lpackage->name, [$lpackage, $maylink]);
+
+ #one FK to many FK
+ } elsif( $link eq 'one2many'){
+warn "\tone2many";
+ $lpackage->one2many_push($rpackage->name, [$rpackage, $maylink]);
+ $rpackage->many2one_push($lpackage->name, [$lpackage, $maylink]);
+
+ #many FK to one FK
+ } elsif( $link eq 'many2one'){
+warn "\tmany2one";
+ $lpackage->many2one_push($rpackage->name, [$rpackage, $maylink]);
+ $rpackage->one2many_push($lpackage->name, [$lpackage, $maylink]);
+
+ #many FK to many FK
+ } elsif( $link eq 'many2many'){
+warn "\tmany2many";
+ $lpackage->many2many_push($rpackage->name, [$rpackage, $maylink]);
+ $rpackage->many2many_push($lpackage->name, [$lpackage, $maylink]);
+
+ } else {
+ #not linkable
}
-
}
}
}
#
- # Iterate over all tables
+ # create methods
#
- for my $table_from ( $schema->get_tables ) {
+ foreach my $package_from (values %packages){
+ next unless $package_from->table->is_data;
+
my %linked;
+ my %o2o = $package_from->one2one;
+warn Dumper(%o2o);
+ my %o2m = $package_from->one2many;
+warn Dumper(%o2m);
+ my %m2o = $package_from->many2one;
+warn Dumper(%m2o);
+ my %m2m = $package_from->many2many;
+warn Dumper(%m2m);
+
+ foreach my $package_to (keys %{ $package_from->one2one }){
+ $package_to = $packages{$package_to};
+ foreach my $bridge ( $package_from->one2one($package_to->name) ){
+ $bridge->[3] = $t->format_fk_name ? $t->format_fk_name->(
+ $package_from->one2one($package_to->name)->[1]->name,
+ $package_to->primary_key
+ ).'s'
+ : $package_from->one2one($package_to->name)->[1]->name .'_'.
+ $package_to->primary_key .'s';
+ }
+ }
- next unless $table_from->is_data;
-
- if($table_from->is_data){
- foreach my $link ( keys %{ $linkable{ $table_from->name } } ) {
- my $linkmethodname;
-
- if ( my $fk_xform = $t->format_fk_name ) {
- # ADD CALLBACK FOR PLURALIZATION MANGLING HERE
- $linkmethodname = $fk_xform->($linkable{$table->name}{$link}->name,
- ($schema->get_table($link)->primary_key->fields)[0]).'s';
- } else {
- # ADD CALLBACK FOR PLURALIZATION MANGLING HERE
- $linkmethodname = $linkable{$table->name}{$link}->name.'_'.
- ($schema->get_table($link)->primary_key->fields)[0].'s';
- }
-
- my @rk_fields = ();
- my @lk_fields = ();
- foreach my $field ($linkable{$table->name}{$link}->get_fields) {
- next unless $field->is_foreign_key;
-
- next unless(
- $field->foreign_key_reference->reference_table eq $table->name
- ||
- $field->foreign_key_reference->reference_table eq $link
- );
- push @lk_fields, ($field->foreign_key_reference->reference_fields)[0]
- if $field->foreign_key_reference->reference_table eq $link;
- push @rk_fields, $field->name
- if $field->foreign_key_reference->reference_table eq $table->name;
- }
-
- #if one possible traversal via link table
- if (scalar(@rk_fields) == 1 and scalar(@lk_fields) == 1) {
- foreach my $rk_field (@rk_fields) {
- #push @{ $packages{ $table_pkg_name }{'has_many'}{ $link } },
- push @{ $packages{ $package->name }{'has_many'}{$link}{'link_one_one'} },
- "sub ".$linkmethodname." { my \$self = shift; ".
- "return map \$_->".
- ($schema->get_table($link)->primary_key->fields)[0].
- ", \$self->".$linkable{$table->name}{$link}->name.
- "_".$rk_field." }\n\n";
- #push @{ $packages{ $table_pkg_name }{'has_many'}{ $link }{'one_one'} },
- # {link_method_name => $linkmethodname, primary_key_field => ($schema->get_table($link)->primary_key->fields)[0],
- # table_name => $linkable{$table_name}{$link}->name, rk_field => $rk_field};
- }
- #else there is more than one way to traverse it. ack!
- #let's treat these types of link tables as a many-to-one (easier)
- #
- #NOTE: we need to rethink the link method name, as the cardinality
- #has shifted on us.
- } elsif (scalar(@rk_fields) == 1) {
- foreach my $rk_field (@rk_fields) {
- # ADD CALLBACK FOR PLURALIZATION MANGLING HERE
- #push @{ $packages{ $table_pkg_name }{'has_many'}{ $link } },
- push @{ $packages{ $package->name }{'has_many'}{ $link }{'link_many_one'} },
- "sub " . $linkable{$table->name}{$link}->name .
- "s { my \$self = shift; return \$self->" .
- $linkable{$table->name}{$link}->name . "_" .
- $rk_field . "(\@_) }\n\n";
- #push @{ $packages{ $table_pkg_name }{'has_many'}{ $link }{'many_one'} },
- # {
- # table_name => $linkable{$table_name}{$link}->name, rk_field => $rk_field
- # };
- }
- } elsif (scalar(@lk_fields) == 1) {
- #these will be taken care of on the other end...
- } else {
- #many many many. need multiple iterations here, data structure revision
- #to handle N FK sources. This code has not been tested and likely doesn't
- #work here
- foreach my $rk_field (@rk_fields) {
- # ADD CALLBACK FOR PLURALIZATION MANGLING HERE
- #push @{ $packages{ $table_pkg_name }{'has_many'}{ $link } },
- push @{ $packages{ $package->name }{'has_many'}{ $link }{'link_many_many'} },
- "sub " . $linkable{$table->name}{$link}->name . "_" . $rk_field .
- "s { my \$self = shift; return \$self->" .
- $linkable{$table->name}{$link}->name . "_" .
- $rk_field . "(\@_) }\n\n";
- #push @{ $packages{ $table_pkg_name }{'has_many'}{ $link }{'many_many'} },
- # {
- # table_name => $linkable{$table_name}{$link}->name, rk_field => $rk_field
- # };
- }
- }
- }
- }
-
-
- #
- # Use foreign keys to set up "has_a/has_many" relationships.
- #
- foreach my $field ( $table->get_fields ) {
- if ( $field->is_foreign_key ) {
- my $table_name = $table->name;
- my $field_name = $field->name;
- my $fk_method = $t->format_fk_name($table_name, $field_name);
- my $fk = $field->foreign_key_reference;
- my $ref_table = $fk->reference_table;
- my $ref_pkg = $t->format_package_name($ref_table);
- my $ref_field = ($fk->reference_fields)[0];
-
- push @{ $packages{ $package->name }{'has_a'} },
- $package->name."->has_a( $field_name => '$ref_pkg');\n".
- "sub $fk_method { return shift->$field_name }\n\n"
- ;
+ foreach my $package_to (keys %{ $package_from->one2many }){
+ $package_to = $packages{$package_to};
+ foreach my $bridge ( $package_from->one2many($package_to->name) ){
+ $bridge->[3] = $t->format_fk_name ? $t->format_fk_name->(
+ $package_from->one2many($package_to->name)->[1]->name,
+ $package_to->primary_key
+ ).'s'
+ : $package_from->one2many($package_to->name)->[1]->name .'_'.
+ $package_to->primary_key .'s';
+ }
+ }
+
+ foreach my $package_to (keys %{ $package_from->many2one }){
+ $package_to = $packages{$package_to};
+ foreach my $bridge ( $package_from->many2one($package_to->name) ){
+ $bridge->[3] = $t->format_fk_name ? $t->format_fk_name->(
+ $package_from->many2one($package_to->name)->[1]->name,
+ $package_to->primary_key
+ ).'s'
+ : $package_from->many2one($package_to->name)->[1]->name .'_'.
+ $package_to->primary_key .'s';
+ }
+ }
+
+ foreach my $package_to (keys %{ $package_from->many2many }){
+ $package_to = $packages{$package_to};
+ foreach my $bridge ( $package_from->many2many($package_to->name) ){
+ $bridge->[3] = $t->format_fk_name ? $t->format_fk_name->(
+ $package_from->many2many($package_to->name)->[1]->name,
+ $package_to->primary_key
+ ).'s'
+ : $package_from->many2many($package_to->name)->[1]->name .'_'.
+ $package_to->primary_key .'s';
+ }
+ }
+
+
+
+
+# #if one possible traversal via link table
+# if (scalar(@rk_fields) == 1 and scalar(@lk_fields) == 1) {
+# foreach my $rk_field (@rk_fields) {
+# push @{ $packages{ $package->name }{'has_many'}{$link}{'link_one_one'} },
+# "sub ".$linkmethodname." { my \$self = shift; ".
+# "return map \$_->".
+# ($schema->get_table($link)->primary_key->fields)[0].
+# ", \$self->".$linkable{$table_from->name}{$link}->name.
+# "_".$rk_field." }\n\n";
+# }
+# #NOTE: we need to rethink the link method name, as the cardinality
+# #has shifted on us.
+# } elsif (scalar(@rk_fields) == 1) {
+# foreach my $rk_field (@rk_fields) {
+# # ADD CALLBACK FOR PLURALIZATION MANGLING HERE
+# push @{ $packages{ $package->name }{'has_many'}{ $link }{'link_many_one'} },
+# "sub " . $linkable{$table_from->name}{$link}->name .
+# "s { my \$self = shift; return \$self->" .
+# $linkable{$table_from->name}{$link}->name . "_" .
+# $rk_field . "(\@_) }\n\n";
+# }
+# } elsif (scalar(@lk_fields) == 1) {
+# #these will be taken care of on the other end...
+# } else {
+# #many many many. need multiple iterations here, data structure revision
+# #to handle N FK sources. This code has not been tested and likely doesn't
+# #work here
+# foreach my $rk_field (@rk_fields) {
+# # ADD CALLBACK FOR PLURALIZATION MANGLING HERE
+# push @{ $packages{ $package->name }{'has_many'}{ $link }{'link_many_many'} },
+# "sub " . $linkable{$table_from->name}{$link}->name . "_" . $rk_field .
+# "s { my \$self = shift; return \$self->" .
+# $linkable{$table_from->name}{$link}->name . "_" .
+# $rk_field . "(\@_) }\n\n";
+# }
+# }
+# }
+
+
+# #
+# # Use foreign keys to set up "has_a/has_many" relationships.
+# #
+# foreach my $field ( $table_from->get_fields ) {
+# if ( $field->is_foreign_key ) {
+# my $table_name = $table_from->name;
+# my $field_name = $field->name;
+# my $fk_method = $t->format_fk_name($table_name, $field_name);
+# my $fk = $field->foreign_key_reference;
+# my $ref_table = $fk->reference_table;
+# my $ref_pkg = $t->format_package_name($ref_table);
+# my $ref_field = ($fk->reference_fields)[0];
+
+# push @{ $packages{ $package->name }{'has_a'} },
+# $package->name."->has_a( $field_name => '$ref_pkg');\n".
+# "sub $fk_method { return shift->$field_name }\n\n"
+# ;
- #
- # If this table "has a" to the other, then it follows
- # that the other table "has many" of this one, right?
- #
- # No... there is the possibility of 1-1 cardinality
-
- #if there weren't M-M relationships via the has_many
- #being set up here, create nice pluralized method alias
- #rather for user as alt. to ugly tablename_fieldname name
- if(! $packages{ $ref_pkg }{ 'has_many' }{ $table->name } ){
- # ADD CALLBACK FOR PLURALIZATION MANGLING HERE
- #push @{ $packages{ $ref_pkg }{'has_many'}{ $table_name } },
- # "sub $table_name\s {\n return shift->$table_name\_$field_name\n}\n\n";
- push @{ $packages{ $ref_pkg }{'has_many'}{ $table->name }{'fk_pluralized'} },
- { table_name => $table->name, field_name => $field_name };
-
- #else ugly
- } else {
- }
-
- #push @{ $packages{ $ref_pkg }{'has_many'}{ $table_name } },
- # "$ref_pkg->has_many(\n '${table_name}_${field_name}', ".
- # "'$table_pkg_name' => '$field_name'\n);\n\n";
- push @{ $packages{ $ref_pkg }{'has_many'}{ $table_name }{pluralized} },
- { ref_pkg => $ref_pkg, table_pkg_name => $package->name, table_name => $table->name, field_name => $field_name };
- }
- }
- }
+# #
+# # If this table "has a" to the other, then it follows
+# # that the other table "has many" of this one, right?
+# #
+# # No... there is the possibility of 1-1 cardinality
+
+# #if there weren't M-M relationships via the has_many
+# #being set up here, create nice pluralized method alias
+# #rather for user as alt. to ugly tablename_fieldname name
+# if(! $packages{ $ref_pkg }{ 'has_many' }{ $table_from->name } ){
+# # ADD CALLBACK FOR PLURALIZATION MANGLING HERE
+# #push @{ $packages{ $ref_pkg }{'has_many'}{ $table_name } },
+# # "sub $table_name\s {\n return shift->$table_name\_$field_name\n}\n\n";
+# push @{ $packages{ $ref_pkg }{'has_many'}{ $table_from->name }{'fk_pluralized'} },
+# { table_name => $table_from->name, field_name => $field_name };
+
+# #else ugly
+# } else {
+# }
+
+# #push @{ $packages{ $ref_pkg }{'has_many'}{ $table_name } },
+# # "$ref_pkg->has_many(\n '${table_name}_${field_name}', ".
+# # "'$table_pkg_name' => '$field_name'\n);\n\n";
+# push @{ $packages{ $ref_pkg }{'has_many'}{ $table_name }{pluralized} },
+# { ref_pkg => $ref_pkg, table_pkg_name => $package->name, table_name => $table_from->name, field_name => $field_name };
+# }
+# }
+ }
my %metadata;
$metadata{"packages"} = \%packages;
package SQL::Translator::Schema::Table;
# ----------------------------------------------------------------------
-# $Id: Table.pm,v 1.15 2003-08-29 05:38:56 allenday Exp $
+# $Id: Table.pm,v 1.16 2003-08-29 08:00:51 allenday Exp $
# ----------------------------------------------------------------------
# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>
#
use SQL::Translator::Schema::Constraint;
use SQL::Translator::Schema::Field;
use SQL::Translator::Schema::Index;
+use Data::Dumper;
use base 'Class::Base';
use vars qw( $VERSION $FIELD_ORDER );
-$VERSION = sprintf "%d.%02d", q$Revision: 1.15 $ =~ /(\d+)\.(\d+)/;
+$VERSION = sprintf "%d.%02d", q$Revision: 1.16 $ =~ /(\d+)\.(\d+)/;
# ----------------------------------------------------------------------
sub init {
$self->{'is_data'} = 0;
foreach my $field ($self->get_fields){
- if(!$field->is_primary_key or !$field->is_foreign_key){
+ if(!$field->is_primary_key and !$field->is_foreign_key){
$self->{'is_data'} = 1;
return $self->{'is_data'}
}
my($self,$table1,$table2) = @_;
- #get tables in abc order
- ($table1,$table2) = sort {$a->name cmp $b->name} ($table1,$table2);
-
return $self->{'can_link'}{$table1->name}{$table2->name} if defined $self->{'can_link'}{$table1->name}{$table2->name};
if($self->is_data == 1){
- $self->{'can_link'}{$table1->name}{$table2->name} = 0;
+ $self->{'can_link'}{$table1->name}{$table2->name} = [0];
+ $self->{'can_link'}{$table2->name}{$table1->name} = [0];
return $self->{'can_link'}{$table1->name}{$table2->name};
}
foreach my $field ($self->get_fields){
#if the table has non-key fields, it can't be a link
- if(!$field->is_primary_key or !$field->is_foreign_key){
- $self->{'can_link'}{$table1->name}{$table2->name} = 0;
+ if(!$field->is_primary_key and !$field->is_foreign_key){
+ $self->{'can_link'}{$table1->name}{$table2->name} = [0];
+ $self->{'can_link'}{$table2->name}{$table1->name} = [0];
return $self->{'can_link'}{$table1->name}{$table2->name};
#otherwise, count up how many fields refer to each FK table.field
} elsif($field->is_foreign_key){
- $fk{$field->foreign_key_reference->reference_table->name}++;
+ push @{ $fk{$field->foreign_key_reference->reference_table->name} }, $field->foreign_key_reference;
}
}
- if($fk{ $table1->name } == 1
+ #trivial traversal, only one way to link the two tables
+ if(scalar($fk{ $table1->name } == 1)
and
- $fk{ $table2->name } == 1
+ scalar($fk{ $table2->name } == 1)
){
- $self->{'can_link'}{$table1->name}{$table2->name} = 1;
+ $self->{'can_link'}{$table1->name}{$table2->name} = ['one2one', $fk{$table1->name}, $fk{$table2->name}];
+ $self->{'can_link'}{$table1->name}{$table2->name} = ['one2one', $fk{$table2->name}, $fk{$table1->name}];
+
+ #non-trivial traversal. one way to link table2, many ways to link table1
+ } elsif(scalar($fk{ $table1->name } > 1)
+ and
+ scalar($fk{ $table2->name } == 1)
+ ){
+ $self->{'can_link'}{$table1->name}{$table2->name} = ['many2one', $fk{$table1->name}, $fk{$table2->name}];
+ $self->{'can_link'}{$table2->name}{$table1->name} = ['one2many', $fk{$table2->name}, $fk{$table1->name}];
+
+ #non-trivial traversal. one way to link table1, many ways to link table2
+ } elsif(scalar($fk{ $table1->name } == 1)
+ and
+ scalar($fk{ $table2->name } > 1)
+ ){
+ $self->{'can_link'}{$table1->name}{$table2->name} = ['one2many', $fk{$table1->name}, $fk{$table2->name}];
+ $self->{'can_link'}{$table2->name}{$table1->name} = ['many2one', $fk{$table2->name}, $fk{$table1->name}];
+
+ #non-trivial traversal. many ways to link table1 and table2
+ } elsif(scalar($fk{ $table1->name } > 1)
+ and
+ scalar($fk{ $table2->name } > 1)
+ ){
+ $self->{'can_link'}{$table1->name}{$table2->name} = ['many2many', $fk{$table1->name}, $fk{$table2->name}];
+ $self->{'can_link'}{$table2->name}{$table1->name} = ['many2many', $fk{$table2->name}, $fk{$table1->name}];
+
+ #one of the tables didn't export a key to this table, no linking possible
} else {
- $self->{'can_link'}{$table1->name}{$table2->name} = 0;
+ $self->{'can_link'}{$table1->name}{$table2->name} = [0];
+ $self->{'can_link'}{$table2->name}{$table1->name} = [0];
}
return $self->{'can_link'}{$table1->name}{$table2->name};
projects / dbsrgits/SQL-Translator.git / commitdiff