Flutter insert List of arrays to SQFlite database without repetition - flutter

Question

I'm new to flutter and I'm practicing flutter and I want prepopulated database on button click I want to insert 10 data at once. The code is working but it is inserting in a repetition manner i.e. 1 will be inserted 2 or three times but I want to insert 10 rows of data in the database without repetition here is my Model:
import 'package:get/state_manager.dart';
import 'dart:convert';
Welcome welcomeFromJson(String str) => Welcome.fromJson(json.decode(str));
String welcomeToJson(Welcome data) => json.encode(data.toJson());
class Welcome {
Welcome({
required this.tfModel,
});
List<TfModel> tfModel;
factory Welcome.fromJson(Map<String, dynamic> json) => Welcome(
tfModel: List<TfModel>.from(json["TfModel"].map((x) => TfModel.fromJson(x))),
);
Map<String, dynamic> toJson() => {
"TfModel": List<dynamic>.from(tfModel.map((x) => x.toJson())),
};
}
class TfModel {
TfModel({
required this.id,
required this.content,
required this.moredesc,
});
int id;
String content;
String moredesc;
final isFavorite = false.obs;
factory TfModel.fromJson(Map<String, dynamic> json) => TfModel(
id: json["id"],
content: json["content"],
moredesc: json["moredesc"],
);
Map<String, dynamic> toJson() => {
"id": id,
"content": content,
"moredesc": moredesc,
};
}
database Helper for insetting Data to the database:
newClient(TfModel newClient) async {
final db = await database;
var raw = await db.rawInsert(
"INSERT Into QList (id,content,moredesc)"
" VALUES (?,?,?)",
[newClient.id, newClient.content, newClient.moredesc]);
return raw;
}
On my homepage, I have created model data and when the user clicks the start button data starts to be inserted into the database.
onPressed action on homepage.dart
onPressed: () async {
print(testClients.length);
for (int i = 0; i <= 9; i++) {
TfModel rnd = testClients[testClients.length-1];
try {
await DBProvider.instance.newClient(rnd);
}
on DatabaseException catch (e){
print("Database Exception");
print(e);
}
}
},
testClient array is below:
List<TfModel> testClients = [
TfModel(id: 1,
content: "Test",
moredesc: "Test Data"),
TfModel(id: 2,
content: "Test",
moredesc: "Test Data"),
TfModel(id: 3,
content: "Test",
moredesc: "Test Data"),
TfModel(id: 4,
content: "Test",
moredesc: "Test Data"),
TfModel(id: 5,
content: "Test",
moredesc: "Test Data"),
TfModel(id: 6,
content: "Test",
moredesc: "Test Data"),
TfModel(id: 7,
content: "Test",
moredesc: "Test Data"),
TfModel(id: 8,
content: "Test",
moredesc: "Test Data"),
TfModel(id: 9,
content: "Test",
moredesc: "Test Data"),
TfModel(id: 10,
content: "Test",
moredesc: "Test Data"),
];

Answer 1

Future<void> insertFeeds(List<s.Feeds> feeds) async {
final db = await banco;
var list = [];
feeds.forEach((element) => list.add(element.toMap()));
await db!.rawInsert(
'INSERT INTO feeds(editorial_id,feed_id,remessa,total_comments,total_reactions,user_reaction,texto,last_update) VALUES(?, ?, ?,?, ?, ?, ?, ?)',
list);
}