Seekers/Helpers/DatabaseHelper.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;
using SQLite;

namespace Justice.Helpers
{
    public class DatabaseHelper
    {
        private readonly SQLiteAsyncConnection _database;
        public DatabaseHelper(string databaseName = "Appdatabase.db")
        {
            var dbPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), databaseName);
            _database = new SQLiteAsyncConnection(dbPath);
        }
        public async Task InitializeAsync<T>() where T: new()
        {
            await _database.CreateTableAsync<T>();
        }
        public async Task<int> InsertAsync<T>(T item) where T : new()
        { 
            return await _database.InsertAsync(item);
        }
        public async Task<List<T>>GetAllAsync<T>()where T : new()
        {
            return await _database.Table<T>().ToListAsync();
        }
        public async Task<List<T>> GetAsync<T>(Expression<Func<T, bool>> predicate) where T : new()
        {
            return await _database.Table<T>().Where(predicate).ToListAsync();
        }
        public async Task<int> UpdateAsync<T>(T item) where T : new()
        {
            return await _database.UpdateAsync(item);
        }
        public async Task<int> DeleteAsync<T>(T item) where T : new()
        {
            return await _database.DeleteAsync(item);
        }
    }
}