/// <summary>
/// 删除
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <param name="connection"></param>
/// <param name="param"></param>
/// <param name="predicate"></param>
/// <param name="transaction"></param>
/// <param name="commandTimeout"></param>
/// <returns></returns>
public static int Delete <TEntity>(this IDbConnection connection, IEnumerable <TEntity> param,
Expression <Func <TEntity, bool> > predicate = null,
IDbTransaction transaction = null, int?commandTimeout = null)
where TEntity : BaseEntity
{
ISqlAdapter adapter = GetSqlAdapter(connection);
var sql = adapter.GetDelete(predicate);
var result = 0;
if (param == null && predicate != null)
{
if (!adapter.ParamValues.ContainsKey("ModifyTime"))
{
adapter.ParamValues.TryAdd("ModifyTime", DateTime.Now);
}
if (!adapter.ParamValues.ContainsKey("ModifyBy"))
{
adapter.ParamValues.TryAdd("ModifyBy", HttpContextHelper.GetOperator());
}
result = connection.ExecuteExt(sql, adapter.ParamValues, transaction, commandTimeout, isExecuteSql: true);
}
else
{
result = connection.ExecuteExt(sql, param, transaction, commandTimeout);
}
return(result);
}