ajax.js

ajax_wrapper = {
	override: {
		success: function(data){
			if (data.wrapped){
				if (data.errors.length){
					$.each(data.errors, function(key, error){
						alert(error);
					});
					return false;
				}
				data = data.data;
			}
			return data;
		},
		
		error: function(jqXHR, textStatus, errorThrown){
			var text ='';
			switch(jqXHR.status){
				case 403:
					text = 'Forbidden';
					break;
				default:
					text = jqXHR.responseText;
			}
			$.dialog({width: 800, buttons: ['ok']}, text);
		},
	},
	
	request: function(_old){
		var self = this;
		return function(){
			var _args = arguments;
			$.each(self.override, function(name, value){
				var old = _args[_args.length - 1][name];
				_args[_args.length - 1][name] = function(data){
					return old(self.override[name](data));
				}
			});
			_args[_args.length - 1].dataType = 'json';
			_old.apply(this, arguments);
		};
	},
	
};

$.ajax = function(_old){
	return ajax_wrapper.request(_old);
}($.ajax);