EasyFramework/sample/Identity.Api/Clean/Domain/Services/TenantManager.cs

using Easy;
using Easy.DDD.Domain;
using Easy.DDD.Domain.Repositories;
using Identity.Api.Clean.Domain.Entites;
using Identity.Api.Clean.Shared.IServices;
using Microsoft.EntityFrameworkCore;

namespace Identity.Api.Clean.Domain.Services;

public class TenantManager : DomainService, ITenantManager
{
    protected IRepository<Tenant> TenantRepository { get; }
    public TenantManager(IRepository<Tenant> tenantRepository)
    {
        TenantRepository = tenantRepository;
    }
    public virtual async Task<Tenant> CreateAsync(string name)
    {
        Check.NotNull(name, nameof(name));

        await ValidateNameAsync(name);
        return new Tenant(GuidGenerator.Create(), name);
    }

    public virtual async Task ChangeNameAsync(Tenant tenant, string name)
    {
        await ValidateNameAsync(name, tenant.Id);

        tenant.SetName(name);
    }

    protected virtual async Task ValidateNameAsync(string name, Guid? expectedId = null)
    {
        When.Is(string.IsNullOrEmpty(name), "租户名称不能为空");

        var tenant = await TenantRepository.Where(o => o.TenantName == name).FirstOrDefaultAsync();

        When.Is(tenant != null && tenant.Id != expectedId, "重复的租户名称: " + name);
    }
}