added support for include key

lib/mysql.js

@@ -223,9 +223,15 @@ MySQL.prototype.all = function all(model, filter, callback) {
         if (err) {
             return callback(err, []);
         }
-        callback(null, data.map(function (obj) {
+
+        var objs = data.map(function (obj) {
             return self.fromDatabase(model, obj);
-        }));
+        });
+        if (filter && filter.include) {
+            this._models[model].model.include(objs, filter.include, callback);
+        } else {
+            callback(null, objs);
+        }
     }.bind(this));
 
     return sql;