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我正在使用Ionic v1並嘗試將一些JSON記錄插入到Android Kitkat上的SQLite數據庫中。如果我使用一個靜態變量,它的工作原理,但只是插入數組的第一個項目,但如果我試圖讓變量名動我得到一個錯誤:Sqlite沒有插入動態JSON數據
Cannot read property 'mac_id' of undefined
我已經嘗試了以下兩個代碼段,第一個作品,但僅插入JSON數組中的第一項,第二不工作:
作品:
但是,只有插入第一項(多次)
for (var i = 0; i < data.length; i++)
{
var mac_id = data[i].mac_id;
var device_type = data[i].device_type;
var machine_id = data[i].machine_id;
var machine_name = data[i].machine_name;
var date_created = data[i].date_created;
db.transaction(function (tx) {
var query = "INSERT INTO devices (mac_id, device_type,machine_id,machine_name,date_created) VALUES (?,?,?,?,?)";
tx.executeSql(query, [mac_id , device_type , machine_id , machine_name , date_created ], function(tx, res) {
},
function(tx, error) {
console.log(' device INSERT error: ' + error.message);
});
}, function(error) {
console.log(' device transaction error: ' + error.message);
}, function() {
console.log('device INSERT ok');
});
}
不工作
for (var i = 0; i < data.length; i++)
{
db.transaction(function (tx) {
var query = "INSERT INTO devices (mac_id, device_type,machine_id,machine_name,date_created) VALUES (?,?,?,?,?)";
tx.executeSql(query, [data[i].mac_id, data[i].device_type, data[i].machine_id, data[i].machine_name, data[i].date_created ], function(tx, res) {
},
function(tx, error) {
console.log(' device INSERT error: ' + error.message);
});
}, function(error) {
console.log(' device transaction error: ' + error.message);
}, function() {
console.log('device INSERT ok');
});
}
JSON陣列
[
{
"id": "3",
"mac_id": "fsdf324324",
"device_type": "redvfsdfds",
"machine_id": "3",
"machine_name": "sdfsdfsdf",
"date_created": "3322342"
},
{
"id": "2",
"mac_id": "243434",
"device_type": "fredssd",
"machine_id": "2",
"machine_name": "fdsfsdf",
"date_created": "43434"
},
{
"id": "1",
"mac_id": "1324324234",
"device_type": "bweight",
"machine_id": "1",
"machine_name": "dffdgf",
"date_created": "4324234"
}
]