Crud.EFCore.Template 7.0.4

CRUDAPI and CrudCore NuGet package (net7.0)

Generic controller template implementing basic CRUD functions:

• create entity from TCreateDto
• read entities using List<TDto>
• read entity with given id using TOneDto
• update entity with given id from TCreateDto
• delete entity with given id.

You will find this NuGet here.

User Manual

Requirements

Web API must have NuGet packages installed:

• AutoMapper.Extensions.Microsoft.DependencyInjection,
• Microsoft.EntityFrameworkCore

and configure:

• AutoMapper e.g.

builder.Services.AddAutoMapper(Assembly.GetExecutingAssembly());

• Application DbContext e.g.

    public static void AddAppDbContext(this IServiceCollection services, ConfigurationManager configuration)
    {
        services.AddDbContext<ApplicationDbContext>
                (options => options.UseNpgsql(configuration.GetConnectionString("DbConnection")));
        services.AddScoped<DbContextSeeder>();
    }

Using EntityControllerTemplate class

One-time configuration:

0. Create the controller mapping loader in the API project:

using CrudCore.API.Mapping;

public class AppMappingProfile : MappingProfile
{
    public AppMappingProfile() : base(Assembly.GetExecutingAssembly()) { }
}

For any entity:

1. Add an interface to the entity:

using CrudCore.Objects;

[DisplayName("klient")]
public class Client:IIdentifiable
{
    public int Id { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }

    public virtual List<Order> Orders { get; set; }

}

(Optional) You could add name attribute to the entity ("klient").

2. Create models for the entity:

public class ClientDto : CreateClientDto
{
    public int Id { get; set; }
}
public class ClientSimplyDto
{
    public int Id { get; set; }
    public string Name { get; set; }    
}
public class CreateClientDto
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
}

3. Create the AutoMapper mapping class (which inherits from the SelfMapFrom generic class):

using CrudCore.API.Mapping;

public class ClientMapping : SelfMapFrom<Client>
{
    protected override void CreateMaps(Profile profile)
    {
        profile.CreateMap<Client, ClientDto>();

        profile.CreateMap<Client, ClientSimplyDto>()
               .ForMember(p => p.Name, x => x.MapFrom(c => $"{c.FirstName} {c.LastName}"));

        profile.CreateMap<ClientDto, Client>();

        profile.CreateMap<CreateClientDto, Client>();
    }
}

4. Create the controller (which inherits from the EntityControllerTemplate generic class):

using CrudCore.API;
using Microsoft.AspNetCore.Mvc;

[Route("api/client")]
[Authorize(Roles = RoleNames.Admin)]
public class ClientController
    : EntityControllerTemplate<Client, ClientDto, ClientSimplyDto, CreateClientDto>
{
    public ClientController(ApplicationDbContext context, IMapper mapper)
        : base(context, mapper) { }
}

And that's all!

This is the result:

Customize controllers functions

You can use entity functions:

• Creater to create new entity,
• Reader to get list of entities,
• Reader2 to get one entity with given id,
• Updater to update entity with given id,
• Deleter to delete entity with given id.

Those functions have two methods:

public EntityFunctionTemplate<TEntity> SetEntityAction(Action<TEntity> entityAction){}
public EntityFunctionTemplate<TEntity> SetQueryableFunction(Func<IQueryable<TEntity>, IQueryable<TEntity>> includeFunc){}

The SetEntityAction method validate the entity:

Creator.SetEntityAction(ValidateNewEntity);

private void ValidateNewEntity(Product entity)
    {
        var duplicate = _set.FirstOrDefault(
            p => p.Name.ToLower() == entity.Name.ToLower() && p.Quality == entity.Quality);

        if (duplicate != null)
        {
            throw new CustomException($"Produkt o nazwie ${entity.Name} istnieje już w bazie danych!");
        }

        duplicate = _set.FirstOrDefault(p => p.Code == entity.Code && p.Quality == entity.Quality);

        if (duplicate != null)
        {
            throw new CustomException($"Produkt o kodzie ${entity.Code} istnieje już w bazie danych!");
        }
    }

The SetQueryableFunction method manipulate the entitys set:

Reader.SetQueryableFunction((entities) => entities.Include(p => p.ProductAmounts));

The EntityControllerTemplate class has endpoints:

    [HttpPost]
    public virtual async Task<int> AddNew([FromBody] TCreateDto dto)
       => await Creator.AddEntity(dto);

    [HttpGet]
    public virtual async Task<List<TDto>> GetAll()
        => await Reader.GetDtos<TDto>();

    [HttpGet("{id}")]
    public virtual async Task<TOneDto> GetDtoById(int id)
        => await Reader2.GetDtoById<TOneDto>(id);

    [HttpPut("{id}")]
    public virtual async Task Update(int id, [FromBody] TCreateDto dto)
        => await Updater.UpdateEntity(id, dto);

    [HttpDelete("{id}")]
    public virtual async Task Remove(int id)
        => await Deleter.RemoveEntity(id);

1. For hiding endpoint use:

    [NonAction]
    public override Task Remove(int id) => base.Remove(id);

2. For authorization off use:

    [AllowAnonymous]
    public override Task<List<ProductDto>> GetAll() => base.GetAll();

Using EntityCRUD class

For make more customisation use the EntityCRUD class insted of the EntityControllerTemplate class. The EntityCRUD class isn't controller, but is the container includes basic CRUD functions.

Example:

[Controller]
[Route("api/order")]
public class OrderController : EntityCRUD<Order>
{
    public OrderController(ApplicationDbContext context, IMapper mapper) : base(context, mapper)
    {
        Reader2.SetQueryableFunction(entities => entities.Include(p => p.Products));
    }

    [HttpGet]
    public async Task GetAll()
        => await Reader.GetDtos<OrderDto>();

    [HttpGet("{id}")]
    public async Task GetById(int id)
        => await Reader2.GetDtoById<OrderDetailsDto>(id);

    [HttpPost]
    public async Task<int> AddNew([FromBody] CreateOrderDto dto)
        => await Creator.AddEntity(dto);
}

More information you can find in the CRUDAPI project in this solution.

If you have any questions write to me(pawel.pepek@gmail.com).

License

MIT license