Move the _operations={} up

lib/datasource.js

@@ -55,6 +55,11 @@ function DataSource(name, settings) {
         return new DataSource(name, settings);
     }
     ModelBuilder.call(this, arguments);
+
+    // operation metadata
+    // Initialize it before calling setup as the adapter might register operations
+    this._operations = {};
+
     this.setup(name, settings);
     
     // connector
@@ -64,9 +69,7 @@ function DataSource(name, settings) {
     this.DataAccessObject = (connector && connector.DataAccessObject) ? connector.DataAccessObject : this.constructor.DataAccessObject;
     this.DataAccessObject.call(this, arguments);
     
-    // operation metadata
-    this._operations = {};
-    
+
     // define DataAccessObject methods
     Object.keys(this.DataAccessObject).forEach(function (name) {
       var fn = this.DataAccessObject[name];