public void SoftCascadeDelete(ISoftDeletable model)
{
var deleteTime = DateTime.UtcNow;
this.SoftCascadeDelete(model, deleteTime);
context.SaveChanges();
}
public void Delete(ISoftDeletable item, DateTime now, bool saveChanges)
{
item.DeletedOn = now;
item.IsDeleted = true;
if (saveChanges)
{
context.SaveChanges();
}
}
public void Restore(ISoftDeletable entity)
{
var entry = ChangeTracker.Entries().First(en => en.Entity == entity);
if ((bool)entry.Property(nameof(ISoftDeletable.IsDeleted)).CurrentValue == true)
{
entry.Property(nameof(ISoftDeletable.IsDeleted)).CurrentValue = false;
}
}
public void HardRemove(ISoftDeletable entity)
{
var entry = ChangeTracker.Entries().First(en => en.Entity == entity);
// a hack to detect hard deleted entities
entry.CurrentValues[SoftDeleteConstants.DeletedDateProperty] = DateTime.MinValue;
Remove(entity);
}
public void Restore(ISoftDeletable entity)
{
var entry = ChangeTracker.Entries().First(en => en.Entity == entity);
if ((DateTime?)entry.Property(SoftDeleteConstants.DeletedDateProperty).CurrentValue != null)
{
entry.Property(SoftDeleteConstants.DeletedDateProperty).CurrentValue = null;
}
}
private void HandleSoftDeletableEntities()
{
IEnumerable <DbEntityEntry> entries = ChangeTracker.Entries().Where(x => x.Entity is ISoftDeletable && x.State == EntityState.Deleted);
foreach (var entry in entries)
{
entry.State = EntityState.Modified;
ISoftDeletable entity = (ISoftDeletable)entry.Entity;
entity.IsDeleted = true;
}
}
/// <summary>
/// Get Domain by ID
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public T GetByID(TIdentifier id)
{
using (ConnectionScope.Enter())
{
T entity;
entity = (T)NHibernateSession.Get(persitentType, id);
ISoftDeletable softDeletable = entity as ISoftDeletable;
if (softDeletable != null && softDeletable.DeletedDate != null)
{
entity = default(T);
}
return(entity);
}
}
public virtual void Delete(T obj)
{
using (var txn = TransactionScope.Enter())
{
ISoftDeletable deletableObj = obj as ISoftDeletable;
if (obj == null || (deletableObj != null && deletableObj.DeletedDate.HasValue))
{
throw new ObjectNotFoundException();
}
BeforeDelete(obj);
_baseDA.Delete(obj);
txn.Commit();
}
}
public static void UnDelete(this ISoftDeletable entity)
{
entity.IsDeleted = false;
var deletionAuditedEntity = entity as IDeletionTracking;
if (deletionAuditedEntity == null)
{
return;
}
deletionAuditedEntity.DeletionDateTime = null;
deletionAuditedEntity.DeleterUserId = null;
deletionAuditedEntity.DeleterBrowserName = null;
deletionAuditedEntity.DeleterIp = null;
}
/// <summary>
/// Insert a domain
/// </summary>
/// <param name="obj">Domain</param>
/// <returns></returns>
public T Insert(T obj)
{
using (ConnectionScope.Enter())
{
ISoftDeletable softDeletable = obj as ISoftDeletable;
if (softDeletable != null)
{
softDeletable.CreatedDate = DateTime.Now;
softDeletable.ModifiedDate = DateTime.Now;
}
TIdentifier id = (TIdentifier)NHibernateSession.Save(obj);
obj = GetByID(id);
return(obj);
}
}
/// <summary>
/// 检测并执行<see cref="ISoftDeletable"/>接口的逻辑
/// </summary>
public static TEntity CheckIDateleTime <TEntity, TKey>(this TEntity entity)
where TEntity : IEntity
where TKey : IEquatable <TKey>
{
if (!(entity is ISoftDeletable))
{
return(entity);
}
ISoftDeletable entity1 = (ISoftDeletable)entity;
if (entity1.DeleteTime == default(DateTime))
{
entity1.DeleteTime = DateTime.Now;
}
return((TEntity)entity1);
}
/// <summary>
/// Update Domain
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public T Update(T obj)
{
using (ConnectionScope.Enter())
{
if (obj.IsNew)
{
throw new DataException("Cannot insert empty key into ID field");
}
ISoftDeletable softDeletable = obj as ISoftDeletable;
if (softDeletable != null)
{
softDeletable.ModifiedDate = DateTime.Now;
}
NHibernateSession.Update(obj);
return(obj);
}
}
private void DeleteInternal(params TEntity[] entities)
{
CheckDataAuth(DataAuthOperation.Delete, entities);
if (typeof(ISoftDeletable).IsAssignableFrom(typeof(TEntity)))
{
// 逻辑删除
foreach (TEntity entity in entities)
{
ISoftDeletable softDeletableEntity = (ISoftDeletable)entity;
softDeletableEntity.DeletedTime = DateTime.Now;
}
}
else
{
// 物理删除
_dbSet.RemoveRange(entities);
}
}
private void SoftCascadeDelete(ISoftDeletable model, DateTime deleteTime)
{
var properties = model.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);
var wantedProperties = properties
.Where(x =>
x.PropertyType.IsGenericType &&
x.PropertyType.GetGenericTypeDefinition() == typeof(ICollection <>) &&
typeof(ISoftDeletable).IsAssignableFrom(x.PropertyType.GetGenericArguments()[0]))
.ToArray();
foreach (var prop in wantedProperties)
{
///can not cast even though models are implementing the interface - the problem
///might be with differenet intances of the library some assemmbly stuff
var listOfChildItems = (HashSet <ISoftDeletable>)prop.GetValue(model);
if (typeof(VideoNote).IsAssignableFrom(prop.PropertyType.GetGenericArguments()[0]))
{
foreach (var item in listOfChildItems)
{
item.DeletedOn = deleteTime;
item.IsDeleted = true;
}
continue;
}
foreach (var childItem in listOfChildItems)
{
SoftCascadeDelete(childItem, deleteTime);
}
}
model.DeletedOn = deleteTime;
model.IsDeleted = true;
}
private void SetDeleted(ISoftDeletable entity)
{
entity.SetSoftDeleted(_now.Moment, _currentUserAccessor.User.Login);
}
/// <summary>
/// Returns true if the given object has been soft-deleted; otherwise, returns false
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public static bool HasBeenSoftDeleted(this ISoftDeletable obj)
{
return(obj.DeletedUtc != null);
}
/// <summary>
/// Marks the given object as soft-deleted
/// </summary>
/// <param name="obj"></param>
public static void SoftDelete(this ISoftDeletable obj)
{
obj.DeletedUtc = DateTime.UtcNow;
}
public override int SaveChanges()
{
//自动审核
var nowAuditDate = DateTime.Now;
var changeSet = ChangeTracker.Entries <IAuditable>();
if (changeSet != null)
{
foreach (DbEntityEntry <IAuditable> dbEntityEntry in changeSet)
{
switch (dbEntityEntry.State)
{
case EntityState.Added:
dbEntityEntry.Entity.CreatedOn = nowAuditDate;
dbEntityEntry.Entity.ModifiedOn = nowAuditDate;
break;
case EntityState.Modified:
dbEntityEntry.Entity.ModifiedOn = nowAuditDate;
break;
}
}
}
//乐观并发控制
foreach (var dbEntityEntry in ChangeTracker.Entries().Where(x => x.State == EntityState.Added || x.State == EntityState.Modified))
{
IVersionable entity = dbEntityEntry.Entity as IVersionable;
if (entity != null)
{
entity.RowVersion = entity.RowVersion + 1;
}
}
//Id自动生成
foreach (var dbEntityEntry in ChangeTracker.Entries().Where(x => x.State == EntityState.Added))
{
IIdentifiable entity = dbEntityEntry.Entity as IIdentifiable;
if (entity != null)
{
if (entity.Id == Guid.Empty.ToString("N"))
{
IIdentityGenerator identityGenerator = LocalServiceLocator.GetService <IIdentityGenerator>();
if (identityGenerator != null)
{
entity.Id = (string)identityGenerator.NewId();
}
}
}
}
//逻辑删除
foreach (var dbEntityEntry in ChangeTracker.Entries().Where(x => x.State == EntityState.Deleted))
{
ISoftDeletable entity = dbEntityEntry.Entity as ISoftDeletable;
if (entity != null)
{
if (!entity.IsDeleted)
{
entity.IsDeleted = true;
}
base.Entry(entity).State = EntityState.Modified;
}
}
return(base.SaveChanges());
}
/// <summary>
/// Marks the given object as no longer soft-deleted
/// </summary>
/// <param name="obj"></param>
public static void SoftRestore(this ISoftDeletable obj)
{
obj.DeletedUtc = null;
}
public static bool IsNullOrDeleted(this ISoftDeletable entity)
{
return(entity == null || entity.IsDeleted);
}
/// <summary>
/// Set soft-delete properties on deletion.
/// </summary>
/// <param name="entity">The entity</param>
/// <param name="now">When the entity was deleted</param>
/// <param name="currentUserName">The user who deleted the entity</param>
public static void SetSoftDeleted(this ISoftDeletable entity, DateTime now, string currentUserName)
{
entity.IsDeleted = true;
entity.DeletedOn = now;
entity.DeletedBy = currentUserName;
}
public static bool IsIncludeSoftDeleted(bool?includeSoftDeleted, TEntity entity, out ISoftDeletable softDeletableEntity)
{
var result = (!(includeSoftDeleted ?? false) && (entity is ISoftDeletable));
if (result)
{
softDeletableEntity = entity as ISoftDeletable;
result = result && softDeletableEntity.IsDeleted;
}
else
{
softDeletableEntity = null;
}
return(result);
}
public static bool IsDeleted(this ISoftDeletable model)
{
return(model.DeletedAt != null);
}
public static void MarkAsDeleted(this ISoftDeletable softDeletable)
{
softDeletable.IsDeleted = true;
softDeletable.DeletedDate = DateTimeOffset.Now;
}
