Change diffing code to use $sqlt_schema. Sort tables in parser
[dbsrgits/DBIx-Class.git] / lib / SQL / Translator / Parser / DBIx / Class.pm
index c0fece0..ec6b9a8 100644 (file)
@@ -5,11 +5,12 @@ package # hide from PAUSE
 
 # Some mistakes the fault of Matt S Trout
 
+# Others the fault of Ash Berlin
+
 use strict;
 use warnings;
-use vars qw($DEBUG $VERSION @EXPORT_OK);
+use vars qw($DEBUG @EXPORT_OK);
 $DEBUG = 0 unless defined $DEBUG;
-$VERSION = sprintf "%d.%02d", q$Revision 1.0$ =~ /(\d+)\.(\d+)/;
 
 use Exporter;
 use Data::Dumper;
@@ -26,28 +27,48 @@ use base qw(Exporter);
 # We're working with DBIx::Class Schemas, not data streams.
 # -------------------------------------------------------------------
 sub parse {
-    my ($tr, $data) = @_;
-    my $args        = $tr->parser_args;
-    my $dbixschema  = $args->{'DBIx::Schema'} || $data;
-    $dbixschema   ||= $args->{'package'};
+    my ($tr, $data)   = @_;
+    my $args          = $tr->parser_args;
+    my $dbicschema    = $args->{'DBIx::Class::Schema'} ||  $args->{"DBIx::Schema"} ||$data;
+    $dbicschema     ||= $args->{'package'};
+    my $limit_sources = $args->{'sources'};
     
-    die 'No DBIx::Schema' unless ($dbixschema);
-    if (!ref $dbixschema) {
-      eval "use $dbixschema;";
-      die "Can't load $dbixschema ($@)" if($@);
+    die 'No DBIx::Class::Schema' unless ($dbicschema);
+    if (!ref $dbicschema) {
+      eval "use $dbicschema;";
+      die "Can't load $dbicschema ($@)" if($@);
     }
 
     my $schema      = $tr->schema;
     my $table_no    = 0;
 
-#    print Dumper($dbixschema->registered_classes);
+    $schema->name( ref($dbicschema) . " v" . ($dbicschema->VERSION || '1.x'))
+      unless ($schema->name);
+
+    my %seen_tables;
+
+    my @monikers = sort $dbicschema->sources;
+    if ($limit_sources) {
+        my $ref = ref $limit_sources || '';
+        die "'sources' parameter must be an array or hash ref" unless $ref eq 'ARRAY' || ref eq 'HASH';
+
+        # limit monikers to those specified in 
+        my $sources;
+        if ($ref eq 'ARRAY') {
+            $sources->{$_} = 1 for (@$limit_sources);
+        } else {
+            $sources = $limit_sources;
+        }
+        @monikers = grep { $sources->{$_} } @monikers;
+    }
 
-    #foreach my $tableclass ($dbixschema->registered_classes)
-    foreach my $moniker ($dbixschema->sources)
+
+    foreach my $moniker (sort @monikers)
     {
-        #eval "use $tableclass";
-        #print("Can't load $tableclass"), next if($@);
-        my $source = $dbixschema->source($moniker);
+        my $source = $dbicschema->source($moniker);
+
+        # Its possible to have multiple DBIC source using same table
+        next if $seen_tables{$source->name}++;
 
         my $table = $schema->add_table(
                                        name => $source->name,
@@ -56,7 +77,7 @@ sub parse {
         my $colcount = 0;
         foreach my $col ($source->columns)
         {
-            # assuming column_info in dbix is the same as DBI (?)
+            # assuming column_info in dbic is the same as DBI (?)
             # data_type is a number, column_type is text?
             my %colinfo = (
               name => $col,
@@ -74,27 +95,46 @@ sub parse {
         $table->primary_key($source->primary_columns);
 
         my @primary = $source->primary_columns;
+        foreach my $field (@primary) {
+          my $index = $table->add_index(
+                                        name   => $field,
+                                        fields => [$field],
+                                        type   => 'NORMAL',
+                                       );
+        }
         my %unique_constraints = $source->unique_constraints;
-        foreach my $uniq (keys %unique_constraints) {
-            if (!equal_keys($unique_constraints{$uniq}, \@primary)) {
+        foreach my $uniq (sort keys %unique_constraints) {
+            if (!$source->compare_relationship_keys($unique_constraints{$uniq}, \@primary)) {
                 $table->add_constraint(
                             type             => 'unique',
                             name             => "$uniq",
                             fields           => $unique_constraints{$uniq}
                 );
+
+               my $index = $table->add_index(
+                            # TODO: Pick a better than that wont conflict
+                            name   => $unique_constraints{$uniq}->[0],
+                            fields => $unique_constraints{$uniq},
+                            type   => 'NORMAL',
+               );
+
             }
         }
 
         my @rels = $source->relationships();
-        foreach my $rel (@rels)
+
+        my %created_FK_rels;
+
+        foreach my $rel (sort @rels)
         {
             my $rel_info = $source->relationship_info($rel);
 
-            my $rel_table = $source->related_source($rel)->name;
-
             # Ignore any rel cond that isn't a straight hash
             next unless ref $rel_info->{cond} eq 'HASH';
 
+            my $othertable = $source->related_source($rel);
+            my $rel_table = $othertable->name;
+
             # Get the key information, mapping off the foreign/self markers
             my @cond = keys(%{$rel_info->{cond}});
             my @refkeys = map {/^\w+\.(\w+)$/} @cond;
@@ -102,63 +142,67 @@ sub parse {
 
             if($rel_table)
             {
+                my $reverse_rels = $source->reverse_relationship_info($rel);
+                my ($otherrelname, $otherrelationship) = each %{$reverse_rels};
+
+                my $on_delete = '';
+                my $on_update = '';
+
+                if (defined $otherrelationship) {
+                    $on_delete = $otherrelationship->{'attrs'}->{cascade_delete} ? 'CASCADE' : '';
+                    $on_update = $otherrelationship->{'attrs'}->{cascade_copy} ? 'CASCADE' : '';
+                }
+
+                # Make sure we dont create the same foreign key constraint twice
+                my $key_test = join("\x00", @keys);
 
                 #Decide if this is a foreign key based on whether the self
                 #items are our primary columns.
 
                 # If the sets are different, then we assume it's a foreign key from
                 # us to another table.
-                if (!equal_keys(\@keys, \@primary)) {
-                    $table->add_constraint(
-                                type             => 'foreign_key',
-                                name             => "fk_$keys[0]",
-                                fields           => \@keys,
-                                reference_fields => \@refkeys,
-                                reference_table  => $rel_table,
-                    );
+                # OR: If is_foreign_key_constraint attr is explicity set (or set to false) on the relation
+                if ( ! exists $created_FK_rels{$rel_table}->{$key_test} &&
+                     ( exists $rel_info->{attrs}{is_foreign_key_constraint} ?
+                       $rel_info->{attrs}{is_foreign_key_constraint} :
+                       !$source->compare_relationship_keys(\@keys, \@primary)
+                    )
+                   )
+                {
+                    $created_FK_rels{$rel_table}->{$key_test} = 1;
+                    if (scalar(@keys)) {
+                        $table->add_constraint(
+                                    type             => 'foreign_key',
+                                    name             => $table->name . "_fk_$keys[0]",
+                                    fields           => \@keys,
+                                    reference_fields => \@refkeys,
+                                    reference_table  => $rel_table,
+                                    on_delete        => $on_delete,
+                                    on_update        => $on_update
+                        );
+                    
+                        my $index = $table->add_index(
+                                    name   => $keys[0],
+                                    fields => \@keys,
+                                    type   => 'NORMAL',
+                        );
+                    }
+
                 }
             }
         }
-    }
-    return 1;
-}
 
-# -------------------------------------------------------------------
-# equal_keys($key1, $key2)
-#
-# See if the set of keys in $key1 is equal to the set of keys in $key2
-# -------------------------------------------------------------------
-sub equal_keys {
-    my ($key1, $key2) = @_;
-
-    # Make sure every key1 is in key2
-    my $found;
-    foreach my $key (@$key1) {
-        $found = 0;
-        foreach my $prim (@$key2) {
-            if ($prim eq $key) {
-                $found = 1;
-                last;
-            }
+        if ($source->result_class->can('sqlt_deploy_hook')) {
+          $source->result_class->sqlt_deploy_hook($table);
         }
-        last unless $found;
     }
 
-    # Make sure every key2 is in key1
-    if ($found) {
-        foreach my $prim (@$key2) {
-            $found = 0;
-            foreach my $key (@$key1) {
-                if ($prim eq $key) {
-                    $found = 1;
-                    last;
-                }
-            }
-            last unless $found;
-        }
+    if ($dbicschema->can('sqlt_deploy_hook')) {
+      $dbicschema->sqlt_deploy_hook($schema);
     }
 
-    return $found;
+    return 1;
 }
 
 1;
+