ASP.NET/02_ProjectOrientedSessions/Session03/Session 03 Document.md

📌 Repository Interfaces (Domain/Repositories)

namespace Domain.Repositories
{
    public interface IRepository<T> where T : class
    {
        Task<T?> GetByIdAsync(int id);
        Task<IEnumerable<T>> GetAllAsync();
        Task AddAsync(T entity);
        void Remove(T entity);
    }
}

namespace Domain.Repositories
{
    public interface IUnitOfWork
    {
        Task<int> CompleteAsync();
    }
}

📌 Repository Pattern (Infrastructure/Persistence/Repositories)

using Domain.Repositories;
using Microsoft.EntityFrameworkCore;

namespace Infrastructure.Persistence.Repositories
{
    public class Repository<T> : IRepository<T> where T : class
    {
        protected readonly AppDbContext _context;
        protected readonly DbSet<T> _dbSet;

        public Repository(AppDbContext context)
        {
            _context = context;
            _dbSet = context.Set<T>();
        }

        public async Task<T?> GetByIdAsync(int id) => await _dbSet.FindAsync(id);
        public async Task<IEnumerable<T>> GetAllAsync() => await _dbSet.ToListAsync();
        public async Task AddAsync(T entity) => await _dbSet.AddAsync(entity);
        public void Remove(T entity) => _dbSet.Remove(entity);
    }
}

📌 Unit of Work Implementation

using Domain.Repositories;
using System.Threading.Tasks;

namespace Infrastructure.Persistence
{
    public class UnitOfWork : IUnitOfWork
    {
        private readonly AppDbContext _context;

        public UnitOfWork(AppDbContext context)
        {
            _context = context;
        }

        public async Task<int> CompleteAsync()
        {
            return await _context.SaveChangesAsync();
        }
    }
}