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Creating Entity without inheriting Entity base class. #929

suraj.kumbhar created 4 years ago

@maliming In ABP.IO we are creating an entities like this which supports repository pattern.

public class Book : Entity<long> { public string Name { get; set; }

public float Price { get; set; }

}

private readonly IRepository<Book,long> _bookRepository;

but i want to create a class which will not inherit Entity.

public class Book { public long Id {get;set;}

public string Name { get; set; }

public float Price { get; set; }

}

private readonly IRepository<Book,long> _bookRepository it gives erros at this line if we didnt pass Entity.

can i use this class with Repository pattern and if not then what approach should i take.

waiting for your urgent response.

2 Answer(s)

Moyaoxiang created 4 years ago

Hi suraj.kumbhar, Due to the generic constraints of IRepository, the entity class must inherit from the IEntity/IEntity<TKey> interface. If you need to create an entity class that does not inherit from IEntity, you can only access entity data through DbContext. e.g.

public class CustomRepository : ICustomRepository
{
    private readonly IDbContextProvider<IoTProjectDbContext> _dbContextProvider;

    protected virtual Task<IoTProjectDbContext> GetDbContextAsync()
    {
        return _dbContextProvider.GetDbContextAsync();
    }

    public CustomRepository(IDbContextProvider<IoTProjectDbContext> dbContextProvider)
    {
        _dbContextProvider = dbContextProvider;
    }

    public async Task<DeviceTests> GetAsync(long id)
    {
        var provider = await GetDbContextAsync();
        return await provider.DeviceTests.FirstOrDefaultAsync(e => e.Id == id);
    }
}

0

ServiceBot created 3 years ago
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