public IEnumerable <T> ReadList <T>()
{
Type type = typeof(T);
Func <IDataReader, object> act = null;
object obj = null;
int cachekey = SqlMapper.GetHashKey(connctionStr, type);
if (SqlMapper.QueryMultiReaderActionCache.ContainsKey(cachekey))
{
act = SqlMapper.QueryMultiReaderActionCache[cachekey];
}
else
{
act = this.ReadImpl <T>(type, reader);
}
while (reader.Read())
{
obj = act(reader);
if (obj == null)
{
continue;
}
yield return((T)obj);
}
ReadNextResult();
}
public T Read <T>()
{
Type type = typeof(T);
Func <IDataReader, object> act = null;
object obj = null;
int cachekey = SqlMapper.GetHashKey(connctionStr, type);
if (SqlMapper.QueryMultiReaderActionCache.ContainsKey(cachekey))
{
act = SqlMapper.QueryMultiReaderActionCache[cachekey];
}
else
{
act = this.ReadImpl <T>(type, reader);
}
reader.Read();
obj = act(reader);
ReadNextResult();
return((T)obj);
}
private IEnumerable <T> QueryCommandList <T>(string querySql, DbParameter[] paramters = null)
{
Contract.Requires <AggregateException>(!querySql.IsNullOrSpace(), "查询SQL语句不能为空");
DbConnection dbConn = CreateNativeContection();
DbDataReader reader = null;
try
{
reader = QueryCommandReader(querySql, paramters);
if (reader.HasRows)
{
while (reader.Read())
{
yield return(SqlMapper.Load <T>(map._type, reader, SqlMapper.GetHashKey(this.connectionString, querySql)));
}
}
reader.Close();
yield return(default(T));
}
finally
{
reader.Close();
}
}
public int Insert <T>(T model)
{
string sql = SqlMapper.CreateInsertMethod(model, SqlMapper.GetHashKey(connectionString, GetDataMap <T>().tableName));
return(CommandImpl(sql));
}
public int Update <T>(T model, string where)
{
string sql = SqlMapper.CreateUpdateMethod(model, SqlMapper.GetHashKey(connectionString, GetDataMap <T>().tableName + where));
return(CommandImpl(sql));
}
//根和聚合集合
public TReturn Query <TFirst, TSecond, TThird, TFourth, TFifth, TSixth, TSeventh, TReturn>(string querySql, Delegate act, object paramters = null) where TReturn : new()
{
TReturn tReturn = new TReturn();
List <DbParameter> param = CreateParater(paramters);
var reader = this.QueryCommandReader(querySql, param.ToArray());
if (reader.HasRows)
{
while (reader.Read())
{
tReturn = SqlMapper.MultiMap <TFirst, TSecond, TThird, TFourth, TFifth, TSixth, TSeventh, TReturn>(act, reader, SqlMapper.GetHashKey(connectionString, querySql));
}
}
reader.Close();
return(tReturn);
}
private List <DbParameter> CreateParater(object paramters)
{
List <DbParameter> param = new List <DbParameter>();
Type paramtersType = null;
if (!paramters.IsNullOrSpace())
{
paramtersType = paramters.GetType();
param = SqlMapper.GetParams(paramters, paramtersType, dbprovider, SqlMapper.GetHashKey(this.connectionString, paramtersType));
}
return(param);
}
