为什么验证不会触发错误，因为“fred”应该使验证条件在设置时返回 true？
Person = Backbone.Model.extend({
initialize: function () {
console.log('inisialize Person');
this.bind("change:name", function () {
console.log(this.get('name') + ' is now the name value')
});
this.bind("error", function (model, error) {
console.log(error);
});
},
defaults: {
name: '',
height: ''
},
validate: function (attributes, options) {
if (attributes.name == "fred") { //why wont this work?
return "oh no fred is not allowed";
}
}
});
//var person = new Person({ name: 'joe', height: '6 feet' });
var person = new Person();
person.set({ name: 'fred', height: '200' });
最佳答案
您的 validate() 在保存时被调用，但在设置属性时不会被调用，除非您明确告诉它这样做。来自 docs :
By default validate is called before save, but can also be called before set if {validate:true} is passed.
关于javascript - 为什么不会验证触发错误-backbone.js，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/15054871/