Release 0.07039

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

diff --git a/lib/DBIx/Class/Schema/Loader/DBI/mysql.pm b/lib/DBIx/Class/Schema/Loader/DBI/mysql.pm
index 8deaf4e..1a3d7a8 100644 (file)
--- a/lib/DBIx/Class/Schema/Loader/DBI/mysql.pm
+++ b/lib/DBIx/Class/Schema/Loader/DBI/mysql.pm
@@ -8,10 +8,12 @@ use Carp::Clan qw/^DBIx::Class/;
 use List::Util 'first';
 use List::MoreUtils 'any';
 use Try::Tiny;
+use Scalar::Util 'blessed';
+use DBIx::Class::Schema::Loader::Utils qw/sigwarn_silencer/;
 use namespace::clean;
 use DBIx::Class::Schema::Loader::Table ();
 
-our $VERSION = '0.07010';
+our $VERSION = '0.07039';
 
 =head1 NAME
 
@@ -64,7 +66,7 @@ sub _system_schemas {
     return ($self->next::method(@_), 'mysql');
 }
 
-sub _tables_list { 
+sub _tables_list {
     my ($self, $opts) = @_;
 
     return $self->next::method($opts, undef, undef);
@@ -82,12 +84,12 @@ sub _table_fk_info {
     my $nqt = qr/[^"`]/;
 
     my (@reldata) = ($table_def =~
-        /CONSTRAINT ${qt}${nqt}+${qt} FOREIGN KEY \($qt(.*)$qt\) REFERENCES (?:$qt($nqt+)$qt\.)?$qt($nqt+)$qt \($qt(.+)$qt\)/ig
+        /CONSTRAINT ${qt}${nqt}+${qt} FOREIGN KEY \($qt(.*)$qt\) REFERENCES (?:$qt($nqt+)$qt\.)?$qt($nqt+)$qt \($qt(.+)$qt\)\s*(.*)/ig
     );
 
     my @rels;
     while (scalar @reldata > 0) {
-        my ($cols, $f_schema, $f_table, $f_cols) = splice @reldata, 0, 4;
+        my ($cols, $f_schema, $f_table, $f_cols, $rest) = splice @reldata, 0, 5;
 
         my @cols   = map { s/$qt//g; $self->_lc($_) }
             split(/$qt?\s*$qt?,$qt?\s*$qt?/, $cols);
@@ -128,10 +130,37 @@ sub _table_fk_info {
             );
         }
 
+        my %attrs;
+
+        if ($rest) {
+            my @on_clauses = $rest =~ /(ON DELETE|ON UPDATE) (RESTRICT|CASCADE|SET NULL|NO ACTION) ?/ig;
+
+            while (my ($clause, $value) = splice @on_clauses, 0, 2) {
+                $clause = lc $clause;
+                $clause =~ s/ /_/;
+
+                $value = uc $value;
+
+                $attrs{$clause} = $value;
+            }
+        }
+
+# The default behavior is RESTRICT. Specifying RESTRICT explicitly just removes
+# that ON clause from the SHOW CREATE TABLE output. For this reason, even
+# though the default for these clauses everywhere else in Schema::Loader is
+# CASCADE, we change the default here to RESTRICT in order to reproduce the
+# schema faithfully.
+        $attrs{on_delete}     ||= 'RESTRICT';
+        $attrs{on_update}     ||= 'RESTRICT';
+
+# MySQL does not have a DEFERRABLE attribute, but there is a way to defer FKs.
+        $attrs{is_deferrable}   = 1;
+
         push(@rels, {
             local_columns => \@cols,
             remote_columns => \@f_cols,
             remote_table => $remote_table,
+            attrs => \%attrs,
         });
     }
 
@@ -201,10 +230,10 @@ sub _columns_info_for {
         delete $info->{size} if $data_type !~ /^(?: (?:var)?(?:char(?:acter)?|binary) | bit | year)\z/ix;
 
         # information_schema is available in 5.0+
-        my ($precision, $scale, $column_type, $default) = eval { $self->dbh->selectrow_array(<<'EOF', {}, $table, $col) };
+        my ($precision, $scale, $column_type, $default) = eval { $self->dbh->selectrow_array(<<'EOF', {}, $table->name, lc($col)) };
 SELECT numeric_precision, numeric_scale, column_type, column_default
 FROM information_schema.columns
-WHERE table_name = ? AND column_name = ?
+WHERE table_schema = schema() AND table_name = ? AND lower(column_name) = ?
 EOF
         my $has_information_schema = not $@;
 
@@ -241,7 +270,7 @@ EOF
 
             delete $info->{extra}{list};
 
-            while ($column_type =~ /'((?:[^']* (?:''|\\')* [^']*)* [^\\'])',?/xg) {
+            while ($column_type =~ /'((?:[^']* (?:''|\\')* [^']*)* [^\\']?)',?/xg) {
                 my $el = $1;
                 $el =~ s/''/'/g;
                 push @{ $info->{extra}{list} }, $el;
@@ -279,7 +308,8 @@ sub _extra_column_info {
     if ($dbi_info->{mysql_values}) {
         $extra_info{extra}{list} = $dbi_info->{mysql_values};
     }
-    if (   lc($dbi_info->{COLUMN_DEF})      eq 'current_timestamp'
+    if ((not blessed $dbi_info) # isa $sth
+        && lc($dbi_info->{COLUMN_DEF})      eq 'current_timestamp'
         && lc($dbi_info->{mysql_type_name}) eq 'timestamp') {
 
         my $current_timestamp = 'current_timestamp';
@@ -292,8 +322,9 @@ sub _extra_column_info {
 sub _dbh_column_info {
     my $self = shift;
 
-    local $SIG{__WARN__} = sub { warn @_
-        unless $_[0] =~ /^column_info: unrecognized column type/ };
+    local $SIG{__WARN__} = sigwarn_silencer(
+        qr/^column_info: unrecognized column type/
+    );
 
     $self->next::method(@_);
 }
@@ -307,7 +338,7 @@ sub _table_comment {
                 FROM information_schema.tables
                 WHERE table_schema = schema()
                   AND table_name = ?
-            }, undef, $table);
+            }, undef, $table->name);
         };
         # InnoDB likes to auto-append crap.
         if (not $comment) {
@@ -332,8 +363,8 @@ sub _column_comment {
                 FROM information_schema.columns
                 WHERE table_schema = schema()
                   AND table_name = ?
-                  AND column_name = ?
-            }, undef, $table, $column_name);
+                  AND lower(column_name) = ?
+            }, undef, $table->name, lc($column_name));
         };
     }
     return $comment;