New method to clear out extra attributes

diff --git a/lib/SQL/Translator/Schema/Object.pm b/lib/SQL/Translator/Schema/Object.pm
index b58f16c..4325424 100644 (file)
--- a/lib/SQL/Translator/Schema/Object.pm
+++ b/lib/SQL/Translator/Schema/Object.pm
@@ -151,6 +151,32 @@ Returns a hash or a hashref.
     return wantarray ? %$extra : $extra;
 }
 
+# ----------------------------------------------------------------------
+sub remove_extra {
+
+=head2 remove_extra
+
+L</extra> can only be used to get or set "extra" attributes but not to
+remove some. Call with no args to remove all extra attributes that
+have been set before. Call with a list of key names to remove
+certain extra attributes only.
+
+  # remove all extra attributes
+  $field->remove_extra(); 
+  
+  # remove timezone and locale attributes only
+  $field->remove_extra(qw/timezone locale/);
+
+=cut
+
+    my ( $self, @keys ) = @_;
+    unless (@keys) {
+        $self->{'extra'} = {};
+    }
+    else {
+        delete $self->{'extra'}{$_} for @keys;
+    }
+}
 
 # ----------------------------------------------------------------------
 sub equals {

diff --git a/t/38-mysql-producer.t b/t/38-mysql-producer.t
index ae2c64d..16151f5 100644 (file)
--- a/t/38-mysql-producer.t
+++ b/t/38-mysql-producer.t
@@ -19,7 +19,7 @@ use FindBin qw/$Bin/;
 #=============================================================================
 
 BEGIN {
-    maybe_plan(32,
+    maybe_plan(35,
         'YAML',
         'SQL::Translator::Producer::MySQL',
         'Test::Differences',
@@ -399,4 +399,27 @@ is (
     SELECT id, name FROM thing
   )";
   is($view1_sql2, $view_sql_noreplace, 'correct "CREATE VIEW" SQL');
+  
+  {
+    my %extra = $view1->extra;
+    is_deeply \%extra,
+      {
+        'mysql_algorithm' => 'MERGE',
+        'mysql_definer'   => 'CURRENT_USER',
+        'mysql_security'  => 'DEFINER'
+      },
+      'Extra attributes';
+  }
+
+  $view1->remove_extra(qw/mysql_definer mysql_security/);
+  {
+    my %extra = $view1->extra;
+    is_deeply \%extra, { 'mysql_algorithm' => 'MERGE', }, 'Extra attributes after first reset_extra call';
+  }
+
+  $view1->remove_extra();
+  {
+    my %extra = $view1->extra;
+    is_deeply \%extra, {}, 'Extra attributes completely removed';
+  }
 }