/// <summary>
/// 获取指定实体类的Sql语句参数集合
/// </summary>
/// <param name="cmd">Sql语句</param>
/// <param name="entity">实体类</param>
/// <returns>Sql语句参数集合</returns>
internal static DataParameter[] InternalGetSqlParameters(AbstractSqlCommand cmd, Object entity)
{
List <DataParameter> parameters = new List <DataParameter>();
if (entity == null)
{
return(parameters.ToArray());
}
Type entityType = entity.GetType();
PropertyInfo[] props = entityType.GetProperties();
foreach (PropertyInfo prop in props)
{
DatabaseColumnAttribute attr = null;
DataType?dataType = null;
Object[] objs = prop.GetCustomAttributes(TypeOfDatabaseColumnAttribute, true);
foreach (Object obj in objs)
{
if ((attr = obj as DatabaseColumnAttribute) != null)
{
break;
}
}
if (attr != null)
{
dataType = attr.DataType;
if (!dataType.HasValue)
{
dataType = DataTypeHelper.InternalGetDataType(prop.PropertyType);
}
DataParameter parameter = cmd.CreateDataParameter(attr.ColumnName, dataType.Value, prop.GetValue(entity, null));
parameters.Add(parameter);
}
}
return(parameters.ToArray());
}
