public T ReadSingle(DbDataReader reader, ObjectsChangeTracker changeTracker)
        {
            T result = reader.Read() ? MapUsingState(reader, reader) : default(T);

            if (changeTracker != null)
            {
                changeTracker.RegisterObject(result);
            }
            return(result);
        }
 public IEnumerable <T> ReadCollection(DbDataReader reader, ObjectsChangeTracker changeTracker)
 {
     while (reader.Read())
     {
         T result = MapUsingState(reader, reader);
         if (changeTracker != null)
         {
             changeTracker.RegisterObject(result);
         }
         yield return(result);
     }
     reader.Close();
 }
Exemplo n.º 3
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 public static IEnumerable <T> ToObjects <T>(this DbDataReader reader, string readerName, string[] excludeFields, ObjectsChangeTracker changeTracker)
 {
     if (string.IsNullOrEmpty(readerName))
     {
         var mappingKeyBuilder = new StringBuilder();
         for (int i = 0; i < reader.FieldCount; ++i)
         {
             mappingKeyBuilder.Append(reader.GetName(i));
             mappingKeyBuilder.Append('$');
         }
         readerName = mappingKeyBuilder.ToString().ToLower();
     }
     return(new DataReaderToObjectMapper <T>(readerName, null, excludeFields).ReadCollection(reader, changeTracker));
 }
Exemplo n.º 4
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        public static T ToObject <T>(this DbDataReader reader, string readerName, string[] excludeFields, ObjectsChangeTracker changeTracker)
        {
            ///这里将数据库表对应的字段串在一起赋值给readerName变量,方便后面判断非数据库字段
            if (string.IsNullOrEmpty(readerName))
            {
                var mappingKeyBuilder = new StringBuilder();
                for (int i = 0; i < reader.FieldCount; ++i)
                {
                    mappingKeyBuilder.Append(reader.GetName(i));
                    mappingKeyBuilder.Append('$');
                }
                readerName = mappingKeyBuilder.ToString().ToLower();
            }

            T result = new DataReaderToObjectMapper <T>(readerName, null, excludeFields).MapUsingState(reader, reader);

            if (changeTracker != null)
            {
                changeTracker.RegisterObject(result);
            }
            return(result);
        }