使用HTML5 indexDB存储多个对象

Question

我有以下格式的JSON对象，

$scope.indexData = {
  "custid": "1",
  "addresses": [
    {
      "addressType": "P",
      "address1": ""
    },
    {
      "addressType": "M"
    }
  ],
  "personalDetails": {
    "title": "",
    "name": ""       
  }
}

我想使用HTML5 indexDB存储对象。如何存储对象？

我试过的方法如下，但没有运气。

var db;
var request = window.indexedDB.open("newDatabase", 1);
request.onupgradeneeded = function(event) {
 var db = event.target.result;
        var objectStore = db.createObjectStore("customers");
        for (var i in $scope.indexData) {
                objectStore.add($scope.indexData[i]);      
        }

}

我收到以下错误：Uncaught DataError: Failed to execute 'add' on 'IDBObjectStore': The object store uses out-of-line keys and has no key generator and the key parameter was not provided.

Answer 1

您正在指定一个键盘，它指示存储区使用内联键.你的代码可能是这样的：

var db;
var request = window.indexedDB.open("newDatabase", 1);
request.onupgradeneeded = function(event) {
 var db = event.target.result;
        var objectStore = db.createObjectStore("customers",{keyPath: "isbn"});
        for (var i in $scope.indexData) {
                objectStore.add({i:$scope.indexData[i], isbn:i});      
        }

}