Backbone.js _ensureElement错误

Question

当我想从路由器类初始化视图时,我收到此错误.

错误是:未捕获TypeError:对象#没有方法'_ensureElement'

BlogFormView:

App.BlogFormView = Backbone.View.extend({
    el: ".data-form",
    initialize: function(){
        this.template = _.template($("#blog_form_template").html());
        this.render();
    },
    render: function(){
        this.$el.html(this.template({blog: this.model.toJSON()}));
        return this;
    },
    events: {
        "click .submit-blog" : "submitForm"
    },
    submitForm: function(ev){

    }
});

路由器:

var blog = new App.Blog();
var blogFormView = App.BlogFormView({model: blog});

Answer 1

您在路由器代码中缺少新关键字:

var blogFormView = new App.BlogFormView({model: blog});

此外,在initialize方法中调用render通常不是最佳选择.我个人只会在路由器代码中调用render.