new version.

1 files changed, 28 insertions, 0 deletions

diff --git a/lib/dm-sqlite-adapter-with-mutex.rb b/lib/dm-sqlite-adapter-with-mutex.rb
new file mode 100644
index 0000000..2842c5e
--- /dev/null
+++ b/lib/dm-sqlite-adapter-with-mutex.rb
@@ -0,0 +1,28 @@
+#
+# Add a mutex so that we can avoid the 'database is locked' Sqlite3Error
+# exception.
+#
+require 'dm-sqlite-adapter'
+require 'monitor'
+
+ADAPTER = DataMapper::Adapters::SqliteAdapter
+
+# better way to alias a private method? (other than "don't"? :) )
+ADAPTER.__send__(:alias_method, :initialize_old, :initialize)
+ADAPTER.__send__(:undef_method, :initialize)
+ADAPTER.__send__(:alias_method, :with_connection_old, :with_connection)
+ADAPTER.__send__(:undef_method, :with_connection)
+
+class ADAPTER
+
+  def initialize(*a)
+    extend(MonitorMixin)
+    initialize_old(*a)
+  end
+
+  private
+
+  def with_connection(&block)
+    synchronize { with_connection_old(&block) }
+  end
+end