/// <summary> /// 根据主键值将对象从库中移除。 /// </summary> /// <param name="primaryValues">主键的值。数组的长度必须与实体所定义的主键相匹配。</param> /// <param name="fakeProperty">标识假删除的属性。</param> /// <param name="fake">如果具有 IsDeletedKey 属性,则提供对对象假删除的支持。</param> /// <exception cref="NullReferenceException">对象内部的 Database 或 EntityType 为 null。</exception> /// <exception cref="ArgumentNullException"><paramref name="primaryValues"/> 参数为 null。</exception> public void Remove(object[] primaryValues, IProperty fakeProperty, bool fake = true) { Guard.NullReference(database); Guard.NullReference(entityType); Guard.ArgumentNull(primaryValues, "primaryValues"); try { var parameters = new ParameterCollection(); var context = CreateContext(parameters); var canFake = fakeProperty != null && fake; var sql = canFake ? EntityPersistentQueryBuilder.BuildUpdateFakeDeleteQuery(context, fakeProperty, primaryValues) : EntityPersistentQueryBuilder.BuildDeleteQuery(context, entityType, primaryValues); if (!sql.IsNullOrEmpty()) { database.ExecuteNonQuery(sql, parameters); } } catch (DbException exp) { throw new EntityPersistentException(SR.GetString(SRKind.FailInEntityRemove), exp); } }
/// <summary> /// 将指定的实体对象从库中移除。 /// </summary> /// <param name="entity">要移除的实体对象。</param> /// <param name="fakeProperty">标识假删除的属性。</param> /// <param name="fake">如果具有 IsDeletedKey 属性,则提供对数据假删除的支持。</param> /// <exception cref="NullReferenceException">对象内部的 Database 为 null。</exception> /// <exception cref="ArgumentNullException"><paramref name="entity"/> 参数为 null。</exception> public void Remove(IEntity entity, IProperty fakeProperty, bool fake = true) { EntityPersistentSubscribePublisher.OnBeforeRemove(entity); try { Batch(() => { var parameters = new ParameterCollection(); var context = CreateContext(parameters); var canFake = fakeProperty != null && fake; var sql = canFake ? EntityPersistentQueryBuilder.BuildUpdateFakeDeleteQuery(context, entity, fakeProperty) : EntityPersistentQueryBuilder.BuildDeleteQuery(context, entity); var isSucc = false; entity.TryLockModifing(() => { if (!sql.IsNullOrEmpty()) { isSucc = database.ExecuteNonQuery(sql, parameters) > 0; } UpdateRelations(entity); }); if (isSucc) { EntityPersistentSubscribePublisher.OnAfterRemove(entity); entity.SetState(EntityState.Unchanged); } }); } catch (DbException exp) { throw new EntityPersistentException(SR.GetString(SRKind.FailInEntityRemove), exp); } }