savepoints for SQLite

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / Storage / DBI / SQLite.pm

diff --git a/lib/DBIx/Class/Storage/DBI/SQLite.pm b/lib/DBIx/Class/Storage/DBI/SQLite.pm
index b87c63a..ecdc37d 100644 (file)
--- a/lib/DBIx/Class/Storage/DBI/SQLite.pm
+++ b/lib/DBIx/Class/Storage/DBI/SQLite.pm
@@ -9,6 +9,7 @@ use mro 'c3';
 __PACKAGE__->sql_maker_class('DBIx::Class::SQLMaker::SQLite');
 __PACKAGE__->sql_limit_dialect ('LimitOffset');
 __PACKAGE__->sql_quote_char ('"');
+__PACKAGE__->datetime_parser_type ('DateTime::Format::SQLite');
 
 sub backup {
 
@@ -46,6 +47,28 @@ sub backup {
   return $backupfile;
 }
 
+sub _exec_svp_begin {
+  my ($self, $name) = @_;
+
+  $self->_dbh->do("SAVEPOINT $name");
+}
+
+sub _exec_svp_release {
+  my ($self, $name) = @_;
+
+  $self->_dbh->do("RELEASE SAVEPOINT $name");
+}
+
+sub _exec_svp_rollback {
+  my ($self, $name) = @_;
+
+  # For some reason this statement changes the value of $dbh->{AutoCommit}, so
+  # we localize it here to preserve the original value.
+  local $self->_dbh->{AutoCommit} = $self->_dbh->{AutoCommit};
+
+  $self->_dbh->do("ROLLBACK TRANSACTION TO SAVEPOINT $name");
+}
+
 sub deployment_statements {
   my $self = shift;
   my ($schema, $type, $version, $dir, $sqltargs, @rest) = @_;
@@ -63,7 +86,12 @@ sub deployment_statements {
   $self->next::method($schema, $type, $version, $dir, $sqltargs, @rest);
 }
 
-sub datetime_parser_type { return "DateTime::Format::SQLite"; }
+sub bind_attribute_by_data_type {
+  $_[1] =~ /^ (?: int(?:eger)? | (?:tiny|small|medium|big)int ) $/ix
+    ? do { require DBI; DBI::SQL_INTEGER() }
+    : undef
+  ;
+}
 
 =head2 connect_call_use_foreign_keys