保存 Backbone.js 模型时堆栈溢出
我有一个简单的 Backbone.js 模型：
class Avia.Student extends Backbone.Model
告诉过你这很简单 :-) 无论如何，我将其保存在以下视图中（为了清晰起见进行了剪裁）：
class Avia.StudentView extends Backbone.View
render: =>
html = JST['views/student_view_template'](model: @model)
@el.html(html)
Backbone.ModelBinding.bind(@)
$('#save').bind('click', @save)
save: (e) =>
e.preventDefault()
@model.save(
success: =>,
error: =>
)
当我单击保存按钮时，调用 @save() ，但失败出现以下错误（再次，为了清楚起见，进行了剪断，因为显然它持续了很长一段时间）：
Uncaught RangeError: Maximum call stack size exceeded
Backbone.Events.trigger:117
_.extend._onModelEvent:635
Backbone.Events.trigger:117
_.extend._onModelEvent:635
Backbone.Events.trigger:117
_.extend._onModelEvent:635
Backbone.Events.trigger:117
有人可以告诉我我做错了什么吗？我不明白为什么会发生这种情况......
I have a simple Backbone.js model:
class Avia.Student extends Backbone.Model
Told you it was simple :-) Anyhow, I'm saving it in the following view (snipped for clarity):
class Avia.StudentView extends Backbone.View
render: =>
html = JST['views/student_view_template'](model: @model)
@el.html(html)
Backbone.ModelBinding.bind(@)
$('#save').bind('click', @save)
save: (e) =>
e.preventDefault()
@model.save(
success: =>,
error: =>
)
When I click the save button, @save() is called, but fails with the following error (again, snipped for clarity as obviously it continues for a long time):
Uncaught RangeError: Maximum call stack size exceeded
Backbone.Events.trigger:117
_.extend._onModelEvent:635
Backbone.Events.trigger:117
_.extend._onModelEvent:635
Backbone.Events.trigger:117
_.extend._onModelEvent:635
Backbone.Events.trigger:117
Could someone please tell me what I'm doing wrong? I don't understand why this is happening ...
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您需要在集合和/或模型的构造函数（如果您已定义）中调用 super() 。几天前我遇到了同样的问题：省略调用
super()无法将_onModelEvent对象绑定到集合，这导致它在不正确的上下文中调用（this指向模型而不是集合[反之亦然]）。You need to call
super()in your collection's and/or model's constructor (if you have defined any). I had the same issue a couple of days ago: Omitting callingsuper()fails to bind the_onModelEventobject to the collection, which causes it to be invoked in an incorrect context (thisis pointing to the model instead of the collection [and vice versa]).您需要将保存功能绑定到视图。
您可以通过在视图的初始化方法中调用
_.bindAll来完成此操作You need to bind the save function to the view.
You do this by calling
_.bindAllin the view's initialize method