Release 0.07034_02

[dbsrgits/DBIx-Class-Schema-Loader.git] / lib / DBIx / Class / Schema / Loader / DBI.pm

diff --git a/lib/DBIx/Class/Schema/Loader/DBI.pm b/lib/DBIx/Class/Schema/Loader/DBI.pm
index 266eb50..7ce3b94 100644 (file)
--- a/lib/DBIx/Class/Schema/Loader/DBI.pm
+++ b/lib/DBIx/Class/Schema/Loader/DBI.pm
@@ -6,10 +6,11 @@ use base qw/DBIx::Class::Schema::Loader::Base/;
 use mro 'c3';
 use Try::Tiny;
 use List::MoreUtils 'any';
+use Carp::Clan qw/^DBIx::Class/;
 use namespace::clean;
 use DBIx::Class::Schema::Loader::Table ();
 
-our $VERSION = '0.07017';
+our $VERSION = '0.07034_02';
 
 __PACKAGE__->mk_group_accessors('simple', qw/
     _disable_pk_detection
@@ -53,9 +54,10 @@ sub new {
         my $driver = $self->dbh->{Driver}->{Name};
 
         my $subclass = 'DBIx::Class::Schema::Loader::DBI::' . $driver;
-        if ($self->load_optional_class($subclass)) {
-            bless $self, $subclass unless $self->isa($subclass);
+        if ((not $self->isa($subclass)) && $self->load_optional_class($subclass)) {
+            bless $self, $subclass;
             $self->_rebless;
+            Class::C3::reinitialize() if $] < 5.009005;
         }
     }
 
@@ -65,7 +67,7 @@ sub new {
 
     $self->_setup;
 
-    $self;
+    return $self;
 }
 
 sub _build_quote_char {
@@ -117,7 +119,7 @@ sub _dbh_tables {
 sub _supports_db_schema { 1 }
 
 # Returns an array of table objects
-sub _tables_list { 
+sub _tables_list {
     my ($self, $opts) = (shift, shift);
 
     my @tables;
@@ -265,7 +267,7 @@ sub _table_columns {
 }
 
 # Returns arrayref of pk col names
-sub _table_pk_info { 
+sub _table_pk_info {
     my ($self, $table) = @_;
 
     return [] if $self->_disable_pk_detection;
@@ -395,6 +397,14 @@ sub _table_fk_info {
 
     my %rels;
 
+    my @rules = (
+        'CASCADE',
+        'RESTRICT',
+        'SET NULL',
+        'NO ACTION',
+        'SET DEFAULT',
+    );
+
     my $i = 1; # for unnamed rels, which hopefully have only 1 column ...
     REL: while(my $raw_rel = $sth->fetchrow_arrayref) {
         my $uk_scm  = $raw_rel->[1];
@@ -402,8 +412,20 @@ sub _table_fk_info {
         my $uk_col  = $self->_lc($raw_rel->[3]);
         my $fk_scm  = $raw_rel->[5];
         my $fk_col  = $self->_lc($raw_rel->[7]);
+        my $key_seq = $raw_rel->[8] - 1;
         my $relid   = ($raw_rel->[11] || ( "__dcsld__" . $i++ ));
 
+        my $update_rule = $raw_rel->[9];
+        my $delete_rule = $raw_rel->[10];
+
+        $update_rule = $rules[$update_rule] if defined $update_rule;
+        $delete_rule = $rules[$delete_rule] if defined $delete_rule;
+
+        my $is_deferrable = $raw_rel->[13];
+
+        ($is_deferrable = $is_deferrable == 7 ? 0 : 1)
+            if defined $is_deferrable;
+
         foreach my $var ($uk_scm, $uk_tbl, $uk_col, $fk_scm, $fk_col, $relid) {
             $var =~ s/[\Q$self->{quote_char}\E]//g if defined $var;
         }
@@ -414,7 +436,7 @@ sub _table_fk_info {
             next REL;
         }
 
-        $rels{$relid}{tbl} = DBIx::Class::Schema::Loader::Table->new(
+        $rels{$relid}{tbl} ||= DBIx::Class::Schema::Loader::Table->new(
             loader => $self,
             name   => $uk_tbl,
             schema => $uk_scm,
@@ -422,16 +444,29 @@ sub _table_fk_info {
                 ignore_schema => 1
             )),
         );
-        $rels{$relid}{cols}{$uk_col} = $fk_col;
+
+        $rels{$relid}{attrs}{on_delete}     = $delete_rule if $delete_rule;
+        $rels{$relid}{attrs}{on_update}     = $update_rule if $update_rule;
+        $rels{$relid}{attrs}{is_deferrable} = $is_deferrable if defined $is_deferrable;
+
+        # Add this data IN ORDER
+        $rels{$relid}{rcols}[$key_seq] = $uk_col;
+        $rels{$relid}{lcols}[$key_seq] = $fk_col;
     }
     $sth->finish;
 
     my @rels;
     foreach my $relid (keys %rels) {
         push(@rels, {
-            remote_columns => [ keys   %{$rels{$relid}->{cols}} ],
-            local_columns  => [ values %{$rels{$relid}->{cols}} ],
+            remote_columns => [ grep defined, @{ $rels{$relid}{rcols} } ],
+            local_columns  => [ grep defined, @{ $rels{$relid}{lcols} } ],
             remote_table   => $rels{$relid}->{tbl},
+            (exists $rels{$relid}{attrs} ?
+                (attrs => $rels{$relid}{attrs})
+                :
+                ()
+            ),
+            _constraint_name => $relid,
         });
     }
 
@@ -467,8 +502,6 @@ sub _columns_info_for {
             my $col_name = $info->{COLUMN_NAME};
             $col_name =~ s/^\"(.*)\"$/$1/;
 
-            $col_name = $self->_lc($col_name);
-
             my $extra_info = $self->_extra_column_info(
                 $table, $col_name, $column_info, $info
             ) || {};
@@ -485,7 +518,7 @@ sub _columns_info_for {
     my @columns = @{ $sth->{NAME} };
 
     COL: for my $i (0 .. $#columns) {
-        next COL if %{ $result{ $self->_lc($columns[$i]) }||{} };
+        next COL if %{ $result{ $columns[$i] }||{} };
 
         my $column_info = {};
         $column_info->{data_type} = lc $sth->{TYPE}[$i];
@@ -509,7 +542,7 @@ sub _columns_info_for {
         my $extra_info = $self->_extra_column_info($table, $columns[$i], $column_info, $sth) || {};
         $column_info = { %$column_info, %$extra_info };
 
-        $result{ $self->_lc($columns[$i]) } = $column_info;
+        $result{ $columns[$i] } = $column_info;
     }
     $sth->finish;
 
@@ -523,6 +556,32 @@ sub _columns_info_for {
         }
     }
 
+    # check for instances of the same column name with different case in preserve_case=0 mode
+    if (not $self->preserve_case) {
+        my %lc_colnames;
+
+        foreach my $col (keys %result) {
+            push @{ $lc_colnames{lc $col} }, $col;
+        }
+
+        if (keys %lc_colnames != keys %result) {
+            my @offending_colnames = map @$_, grep @$_ > 1, values %lc_colnames;
+
+            my $offending_colnames = join ", ", map "'$_'", @offending_colnames;
+
+            croak "columns $offending_colnames in table @{[ $table->sql_name ]} collide in preserve_case=0 mode. preserve_case=1 mode required";
+        }
+
+        # apply lowercasing
+        my %lc_result;
+
+        while (my ($col, $info) = each %result) {
+            $lc_result{ $self->_lc($col) } = $info;
+        }
+
+        %result = %lc_result;
+    }
+
     return \%result;
 }
 
@@ -533,7 +592,7 @@ sub _dbh_type_info_type_name {
     # We wrap it in a try block for MSSQL+DBD::Sybase, which can have issues.
     # TODO investigate further
     my $type_info = try { $self->dbh->type_info($type_num) };
-    
+
     return $type_info ? $type_info->{TYPE_NAME} : undef;
 }