/// <summary>
/// 构造方法
/// </summary>
/// <param name="repository">仓储</param>
public BaseService(IRepository <TEntity, TPrimaryKey> repository)
{
//ReadUow = Ioc.GetService<IReadUnitOfWork>();
Uow = Ioc.GetService <IWriteUnitOfWork>();
Repository = repository;
UserContext = Ioc.GetService <IUserContext>();
}
/// <summary>
/// 部分更新
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="query"></param>
/// <param name="uow"></param>
/// <param name="updateFactory"></param>
/// <param name="defaultFactory"></param>
/// <returns></returns>
public static async Task <int> UpdateAsync <T>(this IQueryable <T> query, IWriteUnitOfWork uow, Expression <Func <T, T> > updateFactory, Expression <Func <T, T> > defaultFactory = null) where T : class
{
NLog.LogManager.GetLogger("Debug").Error($"1工作单元释放_" + uow.TraceId);
var count = Update(query, uow, updateFactory, defaultFactory);
return(await Task.FromResult(count));
}
public WriteRepository(IWriteUnitOfWork unitOfWork)
{
if (unitOfWork == null)
{
throw new ArgumentNullException("IWriteUnitOfWork can not be null!");
}
_unitOfWork = unitOfWork;
_context = unitOfWork.Context as DbContext;
if (_context == null)
{
throw new ArgumentNullException("IWriteUnitOfWork.Context is null or not of type DbContext!");
}
}
/// <summary>
/// 部分更新
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="query"></param>
/// <param name="uow"></param>
/// <param name="updateFactory"></param>
/// <param name="defaultFactory"></param>
/// <returns></returns>
public static int Update <T>(this IQueryable <T> query, IWriteUnitOfWork uow, Expression <Func <T, T> > updateFactory, Expression <Func <T, T> > defaultFactory = null) where T : class
{
var context = uow;
var list = query.ToList();
var compiled = updateFactory.Compile();
var compiledDefault = defaultFactory.Compile();
var memberBindings = ((MemberInitExpression)updateFactory.Body).Bindings;
var accessors = memberBindings
.Select(x => x.Member.Name)
.Select(x => new PropertyOrFieldAccessor(typeof(T).GetProperty(x, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)))
.ToList();
if (updateFactory != null)
{
var memberBindingsDefault = ((MemberInitExpression)defaultFactory.Body).Bindings;
accessors.AddRange(memberBindingsDefault
.Select(x => x.Member.Name)
.Select(x => new PropertyOrFieldAccessor(typeof(T).GetProperty(x, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)))
.ToList());
}
foreach (var item in list)
{
var newItem = compiled(item);
var defaultnewItem = compiledDefault(item);
foreach (var accessor in accessors)
{
var value = accessor.GetValue(newItem);
if (accessor.PropertyOrField.Name == "LastUpdateId")
{
value = accessor.GetValue(defaultnewItem);
}
if (accessor.PropertyOrField.Name == "LastUpdateName")
{
value = accessor.GetValue(defaultnewItem);
}
if (accessor.PropertyOrField.Name == "LastUpdateTime")
{
value = accessor.GetValue(defaultnewItem);
}
if (accessor.PropertyOrField.Name == "Version")
{
value = accessor.GetValue(defaultnewItem);
}
accessor.SetValue(item, value);
}
}
return(list.Count);
}
/// <summary>
/// 初始化
/// </summary>
/// <param name="readUnitOfWork">读取数据库工作单元</param>
/// <param name="writeUnitOfWork">写人数据库工作单元</param>
public EfRepository(IReadUnitOfWork readUnitOfWork, IWriteUnitOfWork writeUnitOfWork)
{
WriteUow = writeUnitOfWork;
ReadUow = DbMode == Utils.Enums.DbMode.Single ? null : readUnitOfWork;
}