Sqlite not INSERTING dynamic JSON data - sqlite

Question

I am using Ionic v1 and trying to INSERT a few JSON records into a SQLite database on Android Kitkat. If I use a static variable it works but only inserts first item in array, but if I try to make the variable names dynamic I get an error:
Cannot read property 'mac_id' of undefined
I have tried the two following code segments, first works but only inserts the first item in the JSON array, second does not working:
Works:
But only inserts first item (multiple times)
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');
});
}
Not Working
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 array
[
{
"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"
}
]

Answer 1

db.transaction(function (tx) {
for ( var i = 0; i < $scope.data.length; i++)
{
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');
});
You should use for loop inside transaction . Use it like this . hope this helps :)