Allowing db-mysql to be used in node 0.4.x and 0.5.x

Author: mariano

db-mysql.js

@@ -9,6 +9,21 @@
  *
  * @ignore
  */
-var binding = require("./build/default/mysql_bindings");
-exports.Database = binding.Mysql;
-exports.Query = binding.Query;
+var EventEmitter = require('events').EventEmitter,
+    binding;
+
+try {
+    binding = require("./build/default/mysql_bindings");
+} catch(error) {
+    binding = require("./build/Release/mysql_bindings");
+}
+
+function extend(target, source) {
+    for (var k in source.prototype) {
+        target.prototype[k] = source.prototype[k];
+    }
+    return target;
+}
+
+exports.Query = extend(binding.Query, EventEmitter);
+exports.Database = extend(binding.Mysql, EventEmitter);

lib/node-db

@@ -20,7 +20,6 @@ void node_db_mysql::Mysql::Init(v8::Handle<v8::Object> target) {
     v8::Local<v8::FunctionTemplate> t = v8::FunctionTemplate::New(New);
 
     constructorTemplate = v8::Persistent<v8::FunctionTemplate>::New(t);
-    constructorTemplate->Inherit(node::EventEmitter::constructor_template);
     constructorTemplate->InstanceTemplate()->SetInternalFieldCount(1);
 
     node_db::Binding::Init(target, constructorTemplate);

src/mysql.cc

@@ -5,6 +5,7 @@
 
 extern "C" {
     void init(v8::Handle<v8::Object> target) {
+        node_db::EventEmitter::Init();
         node_db_mysql::Mysql::Init(target);
         node_db_mysql::Query::Init(target);
     }

src/mysql_bindings.cc

@@ -9,7 +9,6 @@ void node_db_mysql::Query::Init(v8::Handle<v8::Object> target) {
     v8::Local<v8::FunctionTemplate> t = v8::FunctionTemplate::New(New);
 
     constructorTemplate = v8::Persistent<v8::FunctionTemplate>::New(t);
-    constructorTemplate->Inherit(node::EventEmitter::constructor_template);
     constructorTemplate->InstanceTemplate()->SetInternalFieldCount(1);
 
     node_db::Query::Init(target, constructorTemplate);

src/query.cc

@@ -40,7 +40,7 @@ def configure(conf):
 def build(bld):
   obj = bld.new_task_gen("cxx", "shlib", "node_addon")
   obj.target = "mysql_bindings"
-  obj.source = "lib/node-db/binding.cc lib/node-db/connection.cc lib/node-db/exception.cc lib/node-db/query.cc lib/node-db/result.cc src/connection.cc src/mysql.cc src/query.cc src/result.cc src/mysql_bindings.cc"
+  obj.source = "lib/node-db/binding.cc lib/node-db/connection.cc lib/node-db/events.cc lib/node-db/exception.cc lib/node-db/query.cc lib/node-db/result.cc src/connection.cc src/mysql.cc src/query.cc src/result.cc src/mysql_bindings.cc"
   obj.includes = "lib/"
   obj.uselib = "MYSQLCLIENT"