如何在流星中使用IronRouter設置數據？

Question

如何在使用IronRouter的Meteor Application中的動作函數中設置附加數據？參見下面emailWelcome和emailContract功能評論...

代碼：

EmailController = RouteController.extend({ 
    template: 'emailPage', 

    waitOn: function() { 
    return [ 
     Meteor.subscribe('customers'), 
    ]; 
    }, 

    data: function() { 

    var request = Requests.findOne(this.params._id); 
    if (!request) 
     return; 

    var customer = Customers.findOne({'_id': request.customerId}); 
    if (!customer) 
     return; 

    return { 
     sender: Meteor.user(), 
     recipient: Customers.findOne({_id:Session.get('customerId')}) 
    }; 
    }, 

    emailWelcome: function() { 
    // Set var in the context so that emailTemplate = 'welcomeEmail' here 
    this.render('emailPage'); 
    }, 

    emailContract: function() { 
    // Set var in the context so that emailTemplate = 'contractEmail' here 
    this.render('emailPage'); 
    } 
}); 

Answer 1

你可以得到this.getData()訪問數據在你的行動功能：

emailWelcome: function() { 
    var data = this.getData(); // get a reference to the data object 
    data.emailTemplate = 'welcomeEmail'; 
    this.render('emailPage'); 
}, 

emailContract: function() { 
    var data = this.getData(); // get a reference to the data object 
    data.emailTemplate = 'contractEmail'; 

    this.render('emailPage'); 
} 

• 要小心，不要請致電this.data()，因爲這將重新生成 數據，而不是引用已生成的數據 對象。
• 也注意不要叫this.setData(newData)一個動作內，將廢止舊數據對象，啓動反應重裝，並lead to an infinite loop!