未捕获的DOMException：无法执行＆＃39; put＆＃39; on＆＃39; IDBObjectStore＆＃39;：评估对象存储库的关键路径没有产生值

Question

我有一个indexeddb，当我第一次在chrome中打开我的网站时，尝试调用init.savedb（）;我收到一个错误告诉     未捕获的DOMException：无法执行＆＃39; put＆＃39; on＆＃39; IDBObjectStore＆＃39;：评估对象存储库的关键路径没有产生值。

然后我重新加载页面，一切正常。

有人知道我做错了什么吗？

这是代码：

var model = {
everything: {},
db: {},
goals: [],
tags: [],



init: function () {
    var openReq = window.indexedDB.open("micromanagerv999");
    openReq.onupgradeneeded = function (event) {

        model.db = event.target.result;
        var objectStore = model.db.createObjectStore("Everything", { keyPath: "id" });

        objectStore.createIndex("id", "id", { unique: true });


    };
    openReq.onsuccess = function (event) {
        model.db = event.target.result;
        model.db.transaction("Everything", "readonly").objectStore("Everything").count().onsuccess = function (event) {
            if (event.target.result === 0) {


                var basictemplate = {
                    id: "idee",
                    goals: [],

                };
                var addReq = model.db.transaction("Everything", "readwrite").objectStore("Everything").add(basictemplate);

            } else {
                model.db.transaction("Everything", "readonly").objectStore("Everything").get("idee").onsuccess = function (e) {

                    model.everything = e.target.result;
                    model.goals = model.everything.goals;
                    if (model.everything.tags == undefined) {
                        model.everything.tags = [];
                        model.tags = model.everything.tags;
                    } else {
                        model.tags = model.everything.tags;
                    }

                   microGoals.renderArray();
                };

            }

        };
        openReq.onerror = function (event) {
            console.log("Operation failed");
        };

    }
},
savedb: function () {



    var update = model.db.transaction("Everything", "readwrite").objectStore("Everything").put(model.everything);

    update.onerror = function (event) {
        console.log(event);
    }
}



};  // End of MODEL