/// <summary>
/// 删除带看
/// </summary>
/// <param name="user">登陆用户基本信息</param>
/// <param name="beltLook">带看实体</param>
/// <param name="cancellationToken">验证</param>
/// <returns></returns>
public async Task DeleteAsync(SimpleUser user, BeltLook beltLook, CancellationToken cancellationToken = default(CancellationToken))
{
if (user == null)
{
throw new ArgumentNullException(nameof(user));
}
if (beltLook == null)
{
throw new ArgumentNullException(nameof(beltLook));
}
//删除基本信息
beltLook.DeleteTime = DateTime.Now;
beltLook.DeleteUser = user.Id;
beltLook.IsDeleted = true;
Context.Attach(beltLook);
var entry = Context.Entry(beltLook);
entry.Property(x => x.IsDeleted).IsModified = true;
entry.Property(x => x.DeleteUser).IsModified = true;
entry.Property(x => x.DeleteTime).IsModified = true;
try
{
await Context.SaveChangesAsync(cancellationToken);
}
catch (DbUpdateConcurrencyException)
{
throw;
}
}
/// <summary>
/// 修改带看信息
/// </summary>
/// <param name="beltLook"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public async Task UpdateAsync(BeltLook beltLook, CancellationToken cancellationToken = default(CancellationToken))
{
if (beltLook == null)
{
throw new ArgumentNullException(nameof(beltLook));
}
Context.Attach(beltLook);
Context.Update(beltLook);
try
{
await Context.SaveChangesAsync(cancellationToken);
}
catch (DbUpdateConcurrencyException) { }
}
/// <summary>
/// 新增带看信息
/// </summary>
/// <param name="beltLook">实体</param>
/// <param name="cancellationToken">验证</param>
/// <returns></returns>
public async Task <BeltLook> CreateAsync(BeltLook beltLook, CancellationToken cancellationToken = default(CancellationToken))
{
if (beltLook == null)
{
throw new ArgumentNullException(nameof(beltLook));
}
Context.Add(beltLook);
//增加用户带看次数
var customerinfo = await Context.CustomerInfos.FindAsync(beltLook.CustomerId);
customerinfo.BeltNum = customerinfo.BeltNum + 1;
Context.Attach(customerinfo);
Context.Update(customerinfo);
await Context.SaveChangesAsync(cancellationToken);
return(beltLook);
}
