57 lines
2.0 KiB
C#
57 lines
2.0 KiB
C#
using System.Linq.Expressions;
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using Microsoft.EntityFrameworkCore;
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using LctMonolith.Infrastructure.Data;
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namespace LctMonolith.Infrastructure.Repositories;
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/// <summary>
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/// Generic repository implementation for common CRUD and query composition.
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/// </summary>
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public class GenericRepository<TEntity> : IGenericRepository<TEntity> where TEntity : class
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{
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protected readonly AppDbContext Context;
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protected readonly DbSet<TEntity> Set;
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public GenericRepository(AppDbContext context)
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{
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Context = context;
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Set = context.Set<TEntity>();
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}
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public IQueryable<TEntity> Query(
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Expression<Func<TEntity, bool>>? filter = null,
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Func<IQueryable<TEntity>, IOrderedQueryable<TEntity>>? orderBy = null,
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params Expression<Func<TEntity, object>>[] includes)
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{
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IQueryable<TEntity> query = Set;
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if (filter != null) query = query.Where(filter);
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if (includes != null)
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{
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foreach (var include in includes)
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query = query.Include(include);
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}
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if (orderBy != null) query = orderBy(query);
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return query;
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}
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public async Task<TEntity?> GetByIdAsync(object id) => await Set.FindAsync(id) ?? null;
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public ValueTask<TEntity?> FindAsync(params object[] keyValues) => Set.FindAsync(keyValues);
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public async Task AddAsync(TEntity entity, CancellationToken ct = default) => await Set.AddAsync(entity, ct);
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public async Task AddRangeAsync(IEnumerable<TEntity> entities, CancellationToken ct = default) => await Set.AddRangeAsync(entities, ct);
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public void Update(TEntity entity) => Set.Update(entity);
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public void Remove(TEntity entity) => Set.Remove(entity);
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public async Task RemoveByIdAsync(object id, CancellationToken ct = default)
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{
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var entity = await Set.FindAsync([id], ct);
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if (entity == null) throw new KeyNotFoundException($"Entity {typeof(TEntity).Name} id={id} not found");
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Set.Remove(entity);
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}
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}
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