added goal feature

lib/utils/database_helper.dart

@@ -1,5 +1,6 @@
 import 'dart:io';
 import 'package:path_provider/path_provider.dart';
+import 'package:rogapp/model/Rogaining.dart';
 import 'package:rogapp/model/destination.dart';
 import 'package:sqflite/sqflite.dart';
 import 'package:path/path.dart';
@@ -47,8 +48,78 @@ class DatabaseHelper{
       buy_point REAL
     )
     ''');
+
+  await db.execute('''
+    CREATE TABLE rogaining(
+      rog_id INTEGER PRIMARY KEY AUTOINCREMENT,
+      course_id INTEGER,
+      location_id INTEGER,
+      user_id INTEGER,
+      lat REAL,
+      lon REAL,
+      time_stamp INTEGER
+    )
+    ''');
+
+
   }
 
+    Future<List<Rogaining>> allRogianing() async {
+    Database db = await instance.database;
+    var rog = await db.query('rogaining');
+    List<Rogaining> roglist = rog.isNotEmpty ?
+      rog.map((e) => Rogaining.fromMap(e)).toList() : [];
+    print("--------- ${rog}");
+    return roglist;
+  }
+
+
+  Future<List<Rogaining>> getRogainingByLatLon(double lat, double lon) async {
+    Database db = await instance.database;
+    var rog = await db.query('rogaining', where: "lat = ${lat} and lon= ${lon}");
+    List<Rogaining> roglist = rog.isNotEmpty
+      ? rog.map((e) => Rogaining.fromMap(e)).toList() : [];
+    return roglist;
+  }
+
+
+  Future<int> deleteRogaining(int rog_id) async {
+    Database db = await instance.database;
+    var rog = await db.delete('rogaining', where: "rog_id = ${rog_id}");
+    int ret = rog > 0 ? rog : -1;
+    
+    return ret;
+  }
+
+
+  Future<void> deleteAllRogaining() async {
+    Database db = await instance.database;
+    await db.delete('rogaining');
+  }
+
+  
+  Future<bool>isRogAlreadyAvailable(int rog_id) async{
+    Database db = await instance.database;
+    var rog = await db.query('rogaining', where: "rog_id = ${rog_id}");
+    return rog.length > 0 ? true : false;
+  }
+
+  Future<int> insertRogaining(Rogaining rog) async {
+    Database db = await instance.database;
+    int? next_order = Sqflite.firstIntValue(await db.rawQuery('SELECT MAX(rog_id) FROM rogaining'));
+    next_order = next_order==null ? 0 : next_order;
+    next_order = next_order + 1;
+    rog.rog_id = next_order;
+    int res = await db.insert(
+      'rogaining',
+      rog.toMap(),
+      conflictAlgorithm: ConflictAlgorithm.replace,
+    );
+    print("------ database helper insert ${res}-----------::::::::");
+    return res;
+  }
+
+
   Future<List<Destination>> getDestinations() async {
     Database db = await instance.database;
     var dest = await db.query('destination', orderBy: 'list_order');