2
所以，我可以在我編輯現有項目時進行驗證。但是，如果我想創建，驗證出於某種原因不會被啓動。相反，我看到下面的錯誤：骨幹 - 驗證不適用於創建，只更新/編輯？
//this is if the field I want to validate is empty
Uncaught TypeError: Object #<Object> has no method 'get'
//this is if everything in the form is filled out
Uncaught TypeError: Cannot call method 'trigger' of undefined
這是（我認爲是）我的js的相對部分。很抱歉，如果它的過載，我想就像我可以是儘可能具體地址：
Comic = Backbone.Model.extend({
initialize: function() {
this.bind("error", this.notifyCollectionError);
this.bind("change", this.notifyCollectionChange);
},
idAttribute: "ComicID",
url: function() {
return this.isNew() ? "/comics/create" : "/comics/edit/" + this.get("ComicID");
},
validate: function (atts) {
if ("Name" in atts & !atts.Name) {
return "Name is required";
}
if ("Publisher" in atts & !atts.Publisher) {
return "Publisher is required";
}
},
notifyCollectionError: function (model, error) {
this.collection.trigger("itemError", error);
},
notifyCollectionChange: function() {
this.collection.trigger("itemChanged", this);
}
});
Comics = Backbone.Collection.extend({
model: Comic,
url: "/comics/comics"
});
comics = new Comics();
FormView = Backbone.View.extend({
initialize: function() {
_.bindAll(this, "render");
this.template = $("#comicsFormTemplate");
},
events: {
"change input": "updateModel",
"submit #comicsForm": "save"
},
save: function() {
this.model.save(
this.model.attributes,
{
success: function (model, response) {
model.collection.trigger("itemSaved", model);
},
error: function (model, response) {
model.trigger("itemError", "There was a problem saving " + model.get("Name"));
}
}
);
return false;
},
updateModel: function (evt) {
var field = $(evt.currentTarget);
var data = {};
var key = field.attr('ID');
var val = field.val();
data[key] = val;
if (!this.model.set(data)) {
//reset the form field
field.val(this.model.get(key));
}
},
render: function() {
var html = this.template.tmpl(this.model.toJSON());
$(this.el).html(html);
$(".datepicker").datepicker();
return this;
}
});
NotifierView = Backbone.View.extend({
initialize: function() {
this.template = $("#notifierTemplate");
this.className = "success";
this.message = "Success";
_.bindAll(this, "render", "notifySave", "notifyError");
comics.bind("itemSaved", this.notifySave);
comics.bind("itemError", this.notifyError);
},
events: {
"click": "goAway"
},
goAway: function() {
$(this.el).delay(0).fadeOut();
},
notifySave: function (model) {
this.message = model.get("Name") + " saved";
this.render();
},
notifyError: function (message) {
this.message = message;
this.className = "error";
this.render();
},
render: function() {
var html = this.template.tmpl({ message: this.message, className: this.className });
$(this.el).html(html);
return this;
}
});
var ComicsAdmin = Backbone.Router.extend({
initialize: function() {
listView = new ListView({ collection: comics, el: "#comic-list" });
formView = new FormView({ el: "#comic-form" });
notifierView = new NotifierView({el: "#notifications" });
},
routes: {
"": "index",
"edit/:id": "edit",
"create": "create"
},
index: function() {
listView.render();
},
edit: function (id) {
listView.render();
$(notifierView.el).empty();
$(formView.el).empty();
var model = comics.get(id);
formView.model = model;
formView.render();
},
create: function() {
var model = new Comic();
listView.render();
$(notifierView.el).empty();
$(formView.el).empty();
formView.model = model;
formView.render();
}
});
jQuery(function() {
comics.fetch({
success: function() {
window.app = new ComicsAdmin();
Backbone.history.start();
},
error: function() {
}
});
})
所以，不應該我來創建得到驗證呢？爲什麼不是？
您使用的骨幹版本是什麼？ – ryanmarc 2012-02-20 20:42:19
我有這個相同的確切問題。當執行'新模型（{foo：bar}）'時，驗證會運行。該模型永遠不會通過你使用的任何模型驗證傳遞「foo」。 – tkone 2012-02-22 22:19:44
所以我們剛剛從0.5.3升級到0.9.1，0.9.1使用0.5.3使用的相同模型 - 初始化不會調用模型驗證。這對我來說真的很愚蠢 - 如果它不會被用到任何地方，還有什麼需要進行驗證的？ – tkone 2012-02-23 18:45:49