/// <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);
}
}
