如何在Angular DART控制器之间进行通信

问题描述

我有两个控制器，并希望在它们之间发送对象。我有这样的：

i have two controllers and want to "send" between them object. I have something like this:

@NgController(selector: '[users]', publishAs: 'ctrl')
class UsersController {
  List<Users> users;
}

@NgController(selector: '[user_logs]', publishAs: 'ctrl')
class LogsController {
  List<Log> logs;
  void filterLogsFor(User user) { logs = ... }
}

class MyAppModule extends Module {
  MyAppModule() {
    type(LogsController);
    type(UserController);
  }
}

$ b $ p我的解决方案只是将LogsController添加到UserController从模板调用类似ctrl.logsCtrl.filterLogsFor（user）。但它不会工作的某些原因 - 我发现DI创建另一个新的对象LogController它不与模板本身相关 - 我甚至尝试更改为值（LogsController，新的LogsController（）），但它相同 - 它创建新的LogsController时，新的MyAppModule调用，然后新的另一个模板我猜。我显然在做错事 - 但文档没有帮助，angularjs似乎不相似。

My solution was simply adding LogsController to UserController as dependency and calling something like ctrl.logsCtrl.filterLogsFor(user) from template. But it won't work for some reason - i found out DI create another new object LogController which is not related to template itself - i even tried change to "value(LogsController, new LogsController())", but its same - it creates new LogsController when new MyAppModule called and then new another one for template i guess. I am clearly doing something wrong - but documentation is not helpful and angularjs seems not similar at all.

更新：
想象两个表（控制器） - 用户和日志，每个用户行都有链接以显示分配给他的日志。

UPDATE:Imagine two tables(controlers) - users and logs, every user row have link to show logs assigned to him.

推荐答案

使用最新的AngularDart库（0.10.0），GünterZöchbauer的解决方案仍然正确， ：

With the newest AngularDart library (0.10.0), Günter Zöchbauer's solution is still correct, but the syntax has changed a bit:

// Receiver
//import 'dart:async';
String name;
Scope scope;
ReceiverConstructor(this.scope) {
  Stream mystream = scope.on('username-change');
  mystream.listen(myCallback);
}

void myCallback(ScopeEvent e) {
  this.name = e.data;
}


// Sender
scope.emit("username-change", "emit");
scope.broadcast("username-change", "broadcast");
scope.parentScope.broadcast("username-change", "parent-broadcast");
scope.rootScope.broadcast("username-change", "root-broadcast");

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