+++ /dev/null
-package # hide from pause
- SQL::Translator::Schema::Graph;
-use strict;
-use warnings;
-
-use Carp;
-carp(
- 'SQL::Translator::Schema::Graph appears to be dead unmaintained and untested '
-. 'code. It will remain a part of the SQL::Translator distribution for some '
-. 'time, but eventually will be cleaned away. Please file a bug or contact the '
-. 'maintainers and let them know you are still using this functionality'
-);
-
-
-use base 'Class::Base';
-
-use Data::Dumper;
-local $Data::Dumper::Maxdepth = 3;
-
-use SQL::Translator::Schema::Graph::Node;
-use SQL::Translator::Schema::Graph::Edge;
-use SQL::Translator::Schema::Graph::Port;
-use SQL::Translator::Schema::Graph::CompoundEdge;
-use SQL::Translator::Schema::Graph::HyperEdge;
-
-use constant Node => 'SQL::Translator::Schema::Graph::Node';
-use constant Edge => 'SQL::Translator::Schema::Graph::Edge';
-use constant Port => 'SQL::Translator::Schema::Graph::Port';
-use constant CompoundEdge => 'SQL::Translator::Schema::Graph::CompoundEdge';
-use constant HyperEdge => 'SQL::Translator::Schema::Graph::HyperEdge';
-
-use Class::MakeMethods::Template::Hash (
- 'new --and_then_init' => 'new',
- object => [
- 'translator' => {class => 'SQL::Translator'},
- ],
- 'hash' => [ qw( node ) ],
- 'number --counter' => [ qw( order ) ],
-);
-
-our $DEBUG;
-$DEBUG = 0 unless defined $DEBUG;
-
-sub init {
- my $self = shift;
-
- #
- # build package objects
- #
- foreach my $table ($self->translator->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];
-
- my $node = Node->new();
-
- $self->node_push($table->name => $node);
-
- if ($table->is_trivial_link) { $node->is_trivial_link(1); }
- else { $node->is_trivial_link(0); }
-
- $node->order($self->order_incr());
- $node->name( $self->translator->format_package_name($table->name) );
- $node->table( $table );
- $node->primary_key( ($table->primary_key->fields)[0] );
-
- # Primary key may have a differenct accessor method name
- $node->primary_key_accessor(
- defined($self->translator->format_pk_name)
- ? $self->translator->format_pk_name->( $node->name, $node->primary_key )
- : undef
- );
- }
-
- foreach my $node ($self->node_values){
- foreach my $field ($node->table->get_fields){
- if (!$field->is_foreign_key && !$field->is_primary_key) { $node->data_fields->{$field->name} = 1; }
- elsif($field->is_foreign_key) {
- my $that = $self->node($field->foreign_key_reference->reference_table);
-
- #this means we have an incomplete schema
- next unless $that;
-
- my $edge = Edge->new(
- type => 'import',
- thisnode => $node,
- thisfield => $field,
- thatnode => $that,
- #can you believe this sh*t just to get a field obj?
- thatfield => $self->translator->schema->get_table($field->foreign_key_reference->reference_table)->get_field(($field->foreign_key_reference->reference_fields)[0])
- );
-
- $node->edgecount($that->name, $node->edgecount($that->name)+1);
-
- $node->has($that->name, $node->has($that->name)+1);
- $that->many($node->name, $that->many($node->name)+1);
-
- $that->edgecount($node->name, $that->edgecount($node->name)+1);
-
- #warn "\t" . $node->name . "\t" . $node->edgecount($that->name);
- $node->push_edges( $edge );
- $that->push_edges( $edge->flip );
- }
- }
-
- #warn Dumper($node->edgecount());
- #warn "*****";
- }
-
- #
- # type MM relationships
- #
- #foreach linknode
- foreach my $lnode (sort $self->node_values){
- next if $lnode->table->is_data;
- foreach my $inode1 (sort $self->node_values){
- #linknode can't link to itself
- next if $inode1 eq $lnode;
-
- my @inode1_imports = grep { $_->type eq 'import' and $_->thatnode eq $inode1 } $lnode->edges;
- next unless @inode1_imports;
-
- foreach my $inode2 (sort $self->node_values){
- #linknode can't link to itself
- next if $inode2 eq $lnode;
-
- #identify tables that import keys to linknode
- my %i = map {$_->thatnode->name => 1} grep { $_->type eq 'import'} $lnode->edges;
-
- if(scalar(keys %i) == 1) {
- } else {
- last if $inode1 eq $inode2;
- }
-
- my @inode2_imports = grep { $_->type eq 'import' and $_->thatnode eq $inode2 } $lnode->edges;
- next unless @inode2_imports;
-
- my $cedge = CompoundEdge->new();
- $cedge->via($lnode);
-
- #warn join ' ', map {$_->thisfield->name} map {$_->flip} $lnode->edges;
- #warn join ' ', map {$_->thisfield->name} $lnode->edges;
- #warn join ' ', map {$_->thisfield->name} map {$_->flip} grep {$_->type eq 'import'} $lnode->edges;
- #warn join ' ', map {$_->thatfield->name} map {$_->flip} grep {$_->type eq 'import'} $lnode->edges;
- $cedge->push_edges(
- map {$_->flip}
- grep {$_->type eq 'import'
- and
- ($_->thatnode eq $inode1 or $_->thatnode eq $inode2)
- } $lnode->edges
- );
-
- if(scalar(@inode1_imports) == 1 and scalar(@inode2_imports) == 1){
- $cedge->type('one2one');
-
- $inode1->via($inode2->name,$inode1->via($inode2->name)+1);
- $inode2->via($inode1->name,$inode2->via($inode1->name)+1);
- }
- elsif(scalar(@inode1_imports) > 1 and scalar(@inode2_imports) == 1){
- $cedge->type('many2one');
-
- $inode1->via($inode2->name,$inode1->via($inode2->name)+1);
- $inode2->via($inode1->name,$inode2->via($inode1->name)+1);
- }
- elsif(scalar(@inode1_imports) == 1 and scalar(@inode2_imports) > 1){
- #handled above
- }
- elsif(scalar(@inode1_imports) > 1 and scalar(@inode2_imports) > 1){
- $cedge->type('many2many');
-
- $inode1->via($inode2->name,$inode1->via($inode2->name)+1);
- $inode2->via($inode1->name,$inode2->via($inode1->name)+1);
- }
-#warn Dumper($cedge);
-
- $inode1->push_compoundedges($cedge);
- $inode2->push_compoundedges($cedge) unless $inode1 eq $inode2;
-# if($inode1->name ne $inode2->name){
-# my $flipped_cedge = $cedge;
-# foreach my $flipped_cedge_edge ($flipped_cedge->edges){
-# warn Dumper $flipped_cedge_edge;
-# warn "\t". Dumper $flipped_cedge_edge->flip;
-# }
-# }
- }
- }
- }
-
- my $graph = $self; #hack
-
- #
- # create methods
- #
- # this code needs to move to Graph.pm
- foreach my $node_from ($graph->node_values) {
-
- next unless $node_from->table->is_data or !$node_from->table->is_trivial_link;
-
- foreach my $cedge ( $node_from->compoundedges ) {
-
- my $hyperedge = SQL::Translator::Schema::Graph::HyperEdge->new();
-
- my $node_to;
- foreach my $edge ($cedge->edges) {
- if ($edge->thisnode->name eq $node_from->name) {
- $hyperedge->vianode($edge->thatnode);
-
- if ($edge->thatnode->name ne $cedge->via->name) {
- $node_to ||= $graph->node($edge->thatnode->table->name);
- }
-
- $hyperedge->push_thisnode($edge->thisnode);
- $hyperedge->push_thisfield($edge->thisfield);
- $hyperedge->push_thisviafield($edge->thatfield);
-
- } else {
- if ($edge->thisnode->name ne $cedge->via->name) {
- $node_to ||= $graph->node($edge->thisnode->table->name);
- }
- $hyperedge->push_thatnode($edge->thisnode);
- $hyperedge->push_thatfield($edge->thisfield);
- $hyperedge->push_thatviafield($edge->thatfield);
- }
- $self->debug($edge->thisfield->name);
- $self->debug($edge->thatfield->name);
- }
-
- if ($hyperedge->count_thisnode == 1 and $hyperedge->count_thatnode == 1) {
- $hyperedge->type('one2one');
- } elsif ($hyperedge->count_thisnode > 1 and $hyperedge->count_thatnode == 1) {
- $hyperedge->type('many2one');
- } elsif ($hyperedge->count_thisnode == 1 and $hyperedge->count_thatnode > 1) {
- $hyperedge->type('one2many');
- } elsif ($hyperedge->count_thisnode > 1 and $hyperedge->count_thatnode > 1) {
- $hyperedge->type('many2many');
- }
-
- $self->debug($_) foreach sort keys %::SQL::Translator::Schema::Graph::HyperEdge::;
-
- #node_to won't always be defined b/c of multiple edges to a single other node
- if (defined($node_to)) {
- $self->debug($node_from->name);
- $self->debug($node_to->name);
-
- if (scalar($hyperedge->thisnode) > 1) {
- $self->debug($hyperedge->type ." via ". $hyperedge->vianode->name);
- my $i = 0;
- foreach my $thisnode ( $hyperedge->thisnode ) {
- $self->debug($thisnode->name .' '.
- $hyperedge->thisfield_index(0)->name .' -> '.
- $hyperedge->thisviafield_index($i)->name .' '.
- $hyperedge->vianode->name .' '.
- $hyperedge->thatviafield_index(0)->name .' <- '.
- $hyperedge->thatfield_index(0)->name .' '.
- $hyperedge->thatnode_index(0)->name ."\n"
- );
- $i++;
- }
- }
- #warn Dumper($hyperedge) if $hyperedge->type eq 'many2many';
- $node_from->push_hyperedges($hyperedge);
- }
- }
- }
-
-}
-
-1;
projects / dbsrgits/SQL-Translator.git / blobdiff