EF Unit Of Work

Status

Cabang	Membangun	Penyebaran
menguasai
mengembangkan		N/a

Apa itu?

Repositori dan unit implementasi pola kerja untuk Entity Framework Core 3.

Bagaimana cara menggunakannya?

Instalasi

Instal Paket Nuget. Gunakan abstraksi untuk lapisan logika dan yang lainnya dengan lapisan insfrastruktur atau proyek monolitik.

dotnet add package QD.EntityFrameworkCore.UnitOfWork
dotnet add package QD.EntityFrameworkCore.UnitOfWork.Abstractions

Layanan Daftar

 public class AppDbContext : DbContext , IDbContext
{
    public DbSet < Product > Products { get ; set ; }

    public AppDbContext ( DbContextOptions < AppDbContext > options ) : base ( options )
    {
    }

    .. .
    .. .
} 

 public void ConfigureServices ( IServiceCollection services )
{
    services . AddDbContext < AppDbContext > ( builder =>
    {
        .. .
    } ) ;

#region Register UnitOfWorks
    // Register a IUnitOfWork<AppDbContext>
    _services . AddUnitOfWork < AppDbContext > ( ) ;
    // Register a IUnitOfWork<AppDbContext> and IUnitOfWork
    _services . AddUnitOfWork < AppDbContext > ( onlyGeneric : false ) ;
#endregion

    // Optional, register custom repositories
    _services . AddRepository < Product , ProductRepository > ( ) ;
    _services . AddReadOnlyRepository < Product , ProductReadOnlyRepository > ( ) ;
} 

Gunakan Layanan

 public class FancyService : IFancyService
{
    private readonly IUnitOfWork < AppDbContext > _unitOfWork ;

    public FancyService ( IUnitOfWork < AppDbContext > unitOfWork )
    {
        _unitOfWork = unitOfWork ;
    }

    public void DoFancyThing ( )
    {
        var productsRepository = _unitOfWork . GetRepository < Product > ( ) ;

        var products = productsRepository . GetAll ( ) ;

        .. .
        // Use inserts, updates, deletes.
        .. .

        _unitOfWork . SaveChanges ( ) ;
    }
} 

Koleksi Paged (v2.0)

 public void FancyFunction ( )
{
    // These are some examples

    // Array
    IPagedCollection < Product > page1 = _productsRepository . GetPagedArray ( 20 , 0 , product => product . Price > 500 ) ;
    IPagedCollection < Product > page2 = await _productsRepository . GetPagedArrayAsync (
        pageSize : 10 ,
        orderBy : query => query . OrderBy ( product => product . Price ) . ThenBy ( product => product . Name )
    ) ;
    // Indexers
    var a = page1 [ 1 ] . Price ;
    var b = ( ( PagedArray < Product > ) page1 ) [ 2 ] . Price ;

    .. .

    // List
    IPagedCollection < Product > page1 = _productsRepository . GetPagedList ( 20 , 0 , product => product . Price > 500 ) ;
    IPagedCollection < Product > page2 = await _productsRepository . GetPagedListAsync (
        pageSize : 10 ,
        orderBy : query => query . OrderBy ( product => product . Price ) . ThenBy ( product => product . Name )
    ) ;
    // Indexers
    var a = page1 [ 1 ] . Price ;
    var b = ( ( PagedList < Product > ) page1 ) [ 2 ] . Price ;

    .. .

    // Dictionary
    IPagedCollection < KeyValuePair < Guid , Product > > page1 = _productsRepository . GetPagedDictionary ( product => product . Id , 20 , 0 , product => product . Price > 500 ) ;
    IPagedCollection < KeyValuePair < Guid , Product > > page2 = await _productsRepository . GetPagedDictionaryAsync (
        keySelector : product => product . Id ,
        pageSize : 10 ,
        orderBy : query => query . OrderBy ( product => product . Price ) . ThenBy ( product => product . Name )
    ) ;
    // Indexers
    var a = page1 [ 1 ] . Value . Price ;
    var b = ( ( PagedDictionary < Guid , Product > ) page1 ) [ Guid . Parse ( "5926d548-c0b3-4c40-b37f-e89be7741024" ) ] . Price ;
}

Metode sebelumnya sama

    GetAll ( predicate , orderBy ) . ToPagedArray ( pageSize , pageNumber ) ;
    GetAll ( predicate , orderBy ) . ToPagedListAsync ( pageSize , pageNumber ) ;
    GetAll ( predicate , orderBy ) . ToPagedDictionary ( keySelector , pageSize , pageNumber ) ;