this.replaceRoot(this._rollbackBackup);
this._rollbackBackup = null;
this._currentTransaction = null;
+ this._transformationLevel = 0;
},
- transaction: function(callback, context, metadata) {
+ transaction: function(callback, params) {
var toret;
- this.startTransaction(metadata);
- toret = callback.call(context);
+ params = params || {};
+ this.startTransaction(params.metadata);
+ try {
+ toret = callback.call(params.context || this);
+ } catch(e) {
+ if(params.error) {
+ params.error(e);
+ }
+ this.rollbackTransaction();
+ return;
+ }
this.endTransaction();
+ if(params.success) {
+ params.success(toret);
+ }
return toret;
},