private void ListDirtyProperties(object entity)
{
string className = NHibernateProxyHelper.GuessClass(entity).FullName;
ISessionImplementor sessionImpl = m_Session.GetSessionImplementation();
IEntityPersister persister = sessionImpl.Factory.GetEntityPersister(className);
EntityEntry oldEntry = sessionImpl.PersistenceContext.GetEntry(entity);
if (oldEntry == null)
{
INHibernateProxy proxy = entity as INHibernateProxy;
object obj = proxy != null?sessionImpl.PersistenceContext.Unproxy(proxy) : entity;
oldEntry = sessionImpl.PersistenceContext.GetEntry(obj);
}
object[] oldState = oldEntry.LoadedState;
object[] currentState = persister.GetPropertyValues(entity, sessionImpl.EntityMode);
int[] dirtyProperties = persister.FindDirty(currentState, oldState, entity, sessionImpl);
foreach (int index in dirtyProperties)
{
string msg = string.Format(
"Dirty property {0}.{1} was {2}, is {3}.",
className,
persister.PropertyNames[index],
oldState[index] ?? "null",
currentState[index] ?? "null");
DirtyProps.Add(msg);
}
}
protected virtual bool HandleInterception(FlushEntityEvent @event)
{
ISessionImplementor session = @event.Session;
EntityEntry entry = @event.EntityEntry;
IEntityPersister persister = entry.Persister;
object entity = @event.Entity;
//give the Interceptor a chance to modify property values
object[] values = @event.PropertyValues;
bool intercepted = InvokeInterceptor(session, entity, entry, values, persister);
//now we might need to recalculate the dirtyProperties array
if (intercepted && @event.DirtyCheckPossible && [email protected])
{
int[] dirtyProperties;
if (@event.HasDatabaseSnapshot)
{
dirtyProperties = persister.FindModified(@event.DatabaseSnapshot, values, entity, session);
}
else
{
dirtyProperties = persister.FindDirty(values, entry.LoadedState, entity, session);
}
@event.DirtyProperties = dirtyProperties;
}
return(intercepted);
}
public static bool IsDirtyProperty(this ISession session, object entity, string propertyName)
{
ISessionImplementor sessionImpl = session.GetSessionImplementation();
IPersistenceContext persistenceContext = sessionImpl.PersistenceContext;
EntityEntry oldEntry = persistenceContext.GetEntry(entity);
if ((oldEntry == null) && (entity is INHibernateProxy))
{
var proxy = entity as INHibernateProxy;
object obj = sessionImpl.PersistenceContext.Unproxy(proxy);
oldEntry = sessionImpl.PersistenceContext.GetEntry(obj);
}
//NOTE: If the entity is declared as immutable LoadedState is null
if (oldEntry?.LoadedState == null)
{
return(false);
}
string className = oldEntry.EntityName;
IEntityPersister persister = sessionImpl.Factory.GetEntityPersister(className);
object[] oldState = oldEntry.LoadedState;
object[] currentState = persister.GetPropertyValues(entity);
try
{
int[] dirtyProps = persister.FindDirty(currentState, oldState, entity, sessionImpl);
int index = Array.IndexOf(persister.PropertyNames, propertyName);
bool isDirty = dirtyProps != null && (Array.IndexOf(dirtyProps, index) != -1);
return(isDirty);
}
catch (Exception e)
{
LogManager.GetLogger(Assembly.GetEntryAssembly(), "NH Extensions").Error("IsDirtyProperty error!", e);
}
return(false);
}
public static object GetOriginalEntityProperty(this ISession session, object entity, string propertyName)
{
ISessionImplementor sessionImpl = session.GetSessionImplementation();
IPersistenceContext persistenceContext = sessionImpl.PersistenceContext;
EntityEntry oldEntry = persistenceContext.GetEntry(entity);
if ((oldEntry == null) && (entity is INHibernateProxy))
{
INHibernateProxy proxy = entity as INHibernateProxy;
object obj = sessionImpl.PersistenceContext.Unproxy(proxy);
oldEntry = sessionImpl.PersistenceContext.GetEntry(obj);
}
if (oldEntry == null)
{
return(null);
}
string className = oldEntry.EntityName;
IEntityPersister persister = sessionImpl.Factory.GetEntityPersister(className);
object[] oldState = oldEntry.LoadedState;
object[] currentState = persister.GetPropertyValues(entity);
int[] dirtyProps = persister.FindDirty(currentState, oldState, entity, sessionImpl);
int index = Array.IndexOf(persister.PropertyNames, propertyName);
bool isDirty = (dirtyProps != null) && (Array.IndexOf(dirtyProps, index) != -1);
return(isDirty ? oldState[index] : currentState[index]);
}
/// <summary>
/// Возвращает индексы измененных свойств.
/// </summary>
public static IList <int> GetDirtyProps(this ISession session, object entity)
{
EntityEntry oldEntry = GetOldEntry(session, entity);
ISessionImplementor sessionImpl = session.GetSessionImplementation();
string className = oldEntry.EntityName;
IEntityPersister persister = sessionImpl.Factory.GetEntityPersister(className);
object[] oldState = oldEntry.LoadedState;
object[] currentState = persister.GetPropertyValues(entity, sessionImpl.EntityMode);
int[] dirtyProps = persister.FindDirty(currentState, oldState, entity, sessionImpl);
List <int> dirty = new List <int>();
for (int i = 0; i < currentState.Length; i++)
{
var ipc = currentState[i] as IPersistentCollection;
if (ipc != null && ipc.IsDirty)
{
dirty.Add(i);
}
}
if (dirtyProps != null)
{
dirty.AddRange(dirtyProps);
}
return(dirty);
}
private static bool IsDirty(SaveOrUpdateEvent @event)
{
IEntityPersister persister = @event.Entry.Persister;
object[] oldState = @event.Entry.LoadedState;
object[] currentState = persister.GetPropertyValues(@event.Entity, @event.Session.EntityMode);
Int32[] dirtyProps = persister.FindDirty(currentState, oldState, @event.Entity, @event.Session);
return(dirtyProps != null);
}
/// <summary>
/// 更新实体
/// </summary>
/// <param name="entity"></param>
/// <param name="form"></param>
public void Update(TEntity entity, NameValueCollection form)
{
if (form == null)
{//直接更新
if (entity is Entity)
{
var et = entity as Entity;
et.Modifier = GetUserId();
et.ModifyTime = DateTime.Now;
}
_session.Update(entity);
}
else
{//只处理form对象中存在的字段，即客户端提交的字段
var obj = entity as Entity;
var entityInDb = _session.Get <TEntity>(obj.GetId());
if (entityInDb == null)
{
return;
}
//UNDONE: 未处理需要真正更新成null的字段
ISessionImplementor sessionImpl = _session.GetSessionImplementation();
string entityName = typeof(TEntity).FullName;// sessionImpl.PersistenceContext.GetEntry(entityInDb).EntityName;
IEntityPersister persister = sessionImpl.Factory.GetEntityPersister(entityName);
//处理带前缀的字段名
var submitedKeys = form.AllKeys
.Select(p => (p.IndexOf(".") > 0) ? p.Substring(p.LastIndexOf(".") + 1) : p)
.ToList();
object[] currentState = persister.GetPropertyValues(entity, sessionImpl.EntityMode);
object[] oldState = persister.GetPropertyValues(entityInDb, sessionImpl.EntityMode);
for (int i = 0; i < currentState.Length; i++)
{//合并不为空的字段（只更新不为空的字段）
if (submitedKeys.Contains(persister.PropertyNames[i]))
{
oldState[i] = currentState[i];
}
}
//判断是否有字段被更新
int[] dirty = persister.FindDirty(oldState, persister.GetPropertyValues(entityInDb, sessionImpl.EntityMode), entityInDb, sessionImpl);
if (dirty != null && dirty.Length > 0)
{
//设置更新人和更新时间
SetState(persister, oldState, "Modifier", GetUserId());
SetState(persister, oldState, "ModifyTime", DateTime.Now);
}
//给EntityInDb赋新值
persister.SetPropertyValues(entityInDb, oldState, sessionImpl.EntityMode);
_session.Update(entityInDb);
}
}
/// <summary> Perform a dirty check, and attach the results to the event</summary>
protected virtual void DirtyCheck(FlushEntityEvent @event)
{
object entity = @event.Entity;
object[] values = @event.PropertyValues;
ISessionImplementor session = @event.Session;
EntityEntry entry = @event.EntityEntry;
IEntityPersister persister = entry.Persister;
object id = entry.Id;
object[] loadedState = entry.LoadedState;
int[] dirtyProperties = session.Interceptor.FindDirty(entity, id, values, loadedState, persister.PropertyNames, persister.PropertyTypes);
@event.DatabaseSnapshot = null;
bool interceptorHandledDirtyCheck;
bool cannotDirtyCheck;
if (dirtyProperties == null)
{
// Interceptor returned null, so do the dirtycheck ourself, if possible
interceptorHandledDirtyCheck = false;
cannotDirtyCheck = loadedState == null; // object loaded by update()
if (!cannotDirtyCheck)
{
// dirty check against the usual snapshot of the entity
dirtyProperties = persister.FindDirty(values, loadedState, entity, session);
}
else
{
// dirty check against the database snapshot, if possible/necessary
object[] databaseSnapshot = GetDatabaseSnapshot(session, persister, id);
if (databaseSnapshot != null)
{
dirtyProperties = persister.FindModified(databaseSnapshot, values, entity, session);
cannotDirtyCheck = false;
@event.DatabaseSnapshot = databaseSnapshot;
}
}
}
else
{
// the Interceptor handled the dirty checking
cannotDirtyCheck = false;
interceptorHandledDirtyCheck = true;
}
@event.DirtyProperties = dirtyProperties;
@event.DirtyCheckHandledByInterceptor = interceptorHandledDirtyCheck;
@event.DirtyCheckPossible = !cannotDirtyCheck;
}
public static Boolean IsDirtyProperty(this ISession session, Object entity, String propertyName)
{
EntityEntry oldEntry;
IEntityPersister persister = GetEntityPersister(session, entity, out oldEntry);
Object[] oldState = oldEntry.LoadedState;
Object[] currentState = persister.GetPropertyValues(entity, session.GetSessionImplementation().EntityMode);
Int32[] dirtyProps = persister.FindDirty(currentState, oldState, entity, session.GetSessionImplementation());
Int32 index = Array.IndexOf(persister.PropertyNames, propertyName);
Boolean isDirty = (dirtyProps != null) ? (Array.IndexOf(dirtyProps, index) != -1) : false;
return(isDirty);
}
public Boolean IsDirtyEntity(Object entity)
{
if (sessao == null)
{
throw new ArgumentNullException("session");
}
String className = NHibernateProxyHelper.GuessClass(entity).FullName;
ISessionImplementor sessionImpl = sessao.GetSessionImplementation();
IEntityPersister persister = sessionImpl.Factory.GetEntityPersister(className);
EntityEntry oldEntry = sessionImpl.PersistenceContext.GetEntry(sessionImpl.PersistenceContext.Unproxy(entity));
Object[] oldState = oldEntry.LoadedState;
Object[] currentState = persister.GetPropertyValues(entity, sessionImpl.EntityMode);
Int32[] dirtyProps = persister.FindDirty(currentState, oldState, entity, sessionImpl);
return(dirtyProps != null);
}
public static object GetOriginalEntityProperty(this ISession session, object entity, String propertyName)
{
EntityEntry oldEntry = GetOldEntry(session, entity);
ISessionImplementor sessionImpl = session.GetSessionImplementation();
string className = oldEntry.EntityName;
IEntityPersister persister = sessionImpl.Factory.GetEntityPersister(className);
object[] oldState = oldEntry.LoadedState;
object[] currentState = persister.GetPropertyValues(entity, sessionImpl.EntityMode);
int[] dirtyProps = persister.FindDirty(currentState, oldState, entity, sessionImpl);
int index = Array.IndexOf(persister.PropertyNames, propertyName);
bool isDirty = (dirtyProps != null) ? (Array.IndexOf(dirtyProps, index) != -1) : false;
return((isDirty == true) ? oldState[index] : currentState[index]);
}
public static Boolean IsDirtyProperty(this ISession session, Object entity, String propertyName)
{
ISessionImplementor sessionImpl = session.GetSessionImplementation();
IPersistenceContext persistenceContext = sessionImpl.PersistenceContext;
EntityEntry oldEntry = persistenceContext.GetEntry(entity);
String className = oldEntry.EntityName;
IEntityPersister persister = sessionImpl.Factory.GetEntityPersister(className);
if ((oldEntry == null) && (entity is INHibernateProxy))
{
INHibernateProxy proxy = entity as INHibernateProxy;
Object obj = sessionImpl.PersistenceContext.Unproxy(proxy);
oldEntry = sessionImpl.PersistenceContext.GetEntry(obj);
}
Object[] oldState = oldEntry.LoadedState;
Object[] currentState = persister.GetPropertyValues(entity, sessionImpl.EntityMode);
Int32[] dirtyProps = persister.FindDirty(currentState, oldState, entity, sessionImpl);
Int32 index = Array.IndexOf(persister.PropertyNames, propertyName);
Boolean isDirty = (dirtyProps != null) ? (Array.IndexOf(dirtyProps, index) != -1) : false;
return(isDirty);
}
/// <summary> Perform a dirty check, and attach the results to the event</summary>
protected virtual void DirtyCheck(FlushEntityEvent @event)
{
object entity = @event.Entity;
object[] values = @event.PropertyValues;
ISessionImplementor session = @event.Session;
EntityEntry entry = @event.EntityEntry;
IEntityPersister persister = entry.Persister;
object id = entry.Id;
object[] loadedState = entry.LoadedState;
int[] dirtyProperties = session.Interceptor.FindDirty(entity, id, values, loadedState, persister.PropertyNames, persister.PropertyTypes);
@event.DatabaseSnapshot = null;
bool interceptorHandledDirtyCheck;
bool cannotDirtyCheck;
if (dirtyProperties == null)
{
// Interceptor returned null, so do the dirtycheck ourself, if possible
interceptorHandledDirtyCheck = false;
cannotDirtyCheck = loadedState == null; // object loaded by update()
if (!cannotDirtyCheck)
{
// dirty check against the usual snapshot of the entity
dirtyProperties = persister.FindDirty(values, loadedState, entity, session);
}
else if (entry.Status == Status.Deleted && [email protected]())
{
// A non-modifiable (e.g., read-only or immutable) entity needs to be have
// references to transient entities set to null before being deleted. No other
// fields should be updated.
if (values != entry.DeletedState)
{
throw new InvalidOperationException("Entity has status Status.Deleted but values != entry.DeletedState");
}
// Even if loadedState == null, we can dirty-check by comparing currentState and
// entry.getDeletedState() because the only fields to be updated are those that
// refer to transient entities that are being set to null.
// - currentState contains the entity's current property values.
// - entry.getDeletedState() contains the entity's current property values with
// references to transient entities set to null.
// - dirtyProperties will only contain properties that refer to transient entities
object[] currentState = persister.GetPropertyValues(@event.Entity);
dirtyProperties = persister.FindDirty(entry.DeletedState, currentState, entity, session);
cannotDirtyCheck = false;
}
else
{
// dirty check against the database snapshot, if possible/necessary
object[] databaseSnapshot = GetDatabaseSnapshot(session, persister, id);
if (databaseSnapshot != null)
{
dirtyProperties = persister.FindModified(databaseSnapshot, values, entity, session);
cannotDirtyCheck = false;
@event.DatabaseSnapshot = databaseSnapshot;
}
}
}
else
{
// the Interceptor handled the dirty checking
cannotDirtyCheck = false;
interceptorHandledDirtyCheck = true;
}
@event.DirtyProperties = dirtyProperties;
@event.DirtyCheckHandledByInterceptor = interceptorHandledDirtyCheck;
@event.DirtyCheckPossible = !cannotDirtyCheck;
}
private void WriteAudit(object entity, object[] oldState, IEntityPersister persister, object[] state, IEventSource eventSource, object id)
{
IStatelessSession session = null;
ITransaction transaction = null;
try
{
if (entity is AuditLogEntry)
{
return;
}
var entityFullName = entity.GetType().FullName;
if (oldState == null)
{
//Hack to overcome bad saving practice!
oldState = Enumerable.Repeat(UnknownString as object, state.Length).ToArray();
//throw new ArgumentNullException("No old state available for entity type '" + entityFullName + "'. Make sure you're loading it into Session before modifying and saving it.");
}
bool insert = oldState.Length < 1;
//ISessionImplementor implementor = eventSource.GetSession(EntityMode.Poco).SessionFactory.OpenStatelessSession().GetSessionImplementation();
int[] dirtyFieldIndexes = insert ? Enumerable.Range(0, state.Length).ToArray() : persister.FindDirty(state, oldState, entity, eventSource);
var auditEntryType = insert ? "Insert" : "Update";
string username = Environment.UserName;
var haveModifiedBy = entity as IHaveModifiedBy;
if (haveModifiedBy != null)
{
username = haveModifiedBy.LastModifiedBy;
}
session = eventSource.GetSession(EntityMode.Poco).SessionFactory.OpenStatelessSession();
session.BeginTransaction();
foreach (var dirtyFieldIndex in dirtyFieldIndexes)
{
string oldValue = NoValueString;
if (!insert)
{
oldValue = GetStringValueFromStateArray(oldState, dirtyFieldIndex);
}
var newValue = GetStringValueFromStateArray(state, dirtyFieldIndex);
var propertyName = persister.PropertyNames[dirtyFieldIndex];
if (oldValue == newValue || propertyName == "LastModifiedBy" || propertyName == "LastModifiedDate")
{
continue;
}
session.Insert(new AuditLogEntry
{
EntityShortName = entity.GetType().Name,
FieldName = propertyName,
OldValue = oldValue,
NewValue = newValue,
Username = username,
EntityId = (int)id,
AuditEntryType = auditEntryType,
Timestamp = DateTime.Now
});
}
session.Transaction.Commit();
session.Close();
}
catch (Exception)
{
//Don't let audit log make us fail.
//if (session != null)
//{
// if (session.Transaction.IsActive) session.Transaction.Rollback();
// session.Close();
// session = null;
//}
//if (eventSource != null)
//{
// //if (transaction != null && transaction.IsActive) eventSource.Transaction.Rollback();
// //if (eventSource.Transaction.IsActive) eventSource.Transaction.Rollback();
// //eventSource.Close();
//}
}
}
