public static string GetEntityTable <T>()
{
string tName = BaseTO.GetTableName <T>();
Type type = typeof(T);
tName = tName.Replace("_" + type.Namespace + "_" + type.Name, "");
return(tName);
}
public int DeleteByPKArray(long[] idArrar)
{
StringBuilder sb = new StringBuilder();
sb.Append("Delete from ").Append(_tableName);
string[] primaryKeys = BaseTO.GetSQLPrimaryKey(BaseTO.GetTableName <T>());
if (null == primaryKeys || 0 == primaryKeys.Length)
{
throw new ExceptionNoPrimaryKey();
}
if (1 < primaryKeys.Length)
{
//此方法只用于实体类只有一个主键的情况
throw new ExceptionErrorPrimaryKeyNumber();
}
string idList = string.Join(",", idArrar);
sb.Append(" where ")
.Append(primaryKeys[0])
.Append(" in (")
.Append(idList)
.Append(")");
List <SqlParameter> parameters = new List <SqlParameter>();
SqlTransConn transConn = GetConnection(_connectionName);
int result = 0;
try
{
result = SqlHelper.ExecuteNonQuery(transConn, CommandType.Text, sb.ToString(), null);
}
catch (Exception ex)
{
throw new Exception(ex.Message + ":" + sb.ToString(), ex);
}
finally
{
if (!transConn.IsInTransaction())
{
transConn.Close();
}
}
return(result);
}
public int DeleteByPK(long id)
{
StringBuilder sb = new StringBuilder();
sb.Append("Delete from ").Append(_tableName);
string[] primaryKeys = BaseTO.GetSQLPrimaryKey(BaseTO.GetTableName <T>());
if (null == primaryKeys || 0 == primaryKeys.Length)
{
throw new ExceptionNoPrimaryKey();
}
if (1 < primaryKeys.Length)
{
//此方法只用于实体类只能有一个主键的情况
throw new ExceptionErrorPrimaryKeyNumber();
}
sb.Append(" where ").Append(primaryKeys[0]).Append("=@PKValue");
List <SqlParameter> parameters = new List <SqlParameter>();
SqlParameter parameter = new SqlParameter("@PKValue", SqlDbType.Int, 0);
parameter.Value = id;
parameters.Add(parameter);
SqlTransConn transConn = GetConnection(_connectionName);
int result = 0;
try
{
result = SqlHelper.ExecuteNonQuery(transConn, CommandType.Text, sb.ToString(), parameters);
}
catch (Exception ex)
{
throw new Exception(ex.Message + ":" + sb.ToString(), ex);
}
finally
{
if (!transConn.IsInTransaction())
{
transConn.Close();
}
}
return(result);
}
public T GetItemByPK(T t, string pkValue)
{
Query query = new Query();
string tableName = BaseTO.GetTableName <T>();
query.Selects = GetEntityExtendQuery();
string[] primaryKeys = t.GetPrimaryKey <T>();
if (null == primaryKeys || 0 == primaryKeys.Length)
{
throw new ExceptionNoPrimaryKey();
}
if (1 < primaryKeys.Length)
{
//此方法只用于实体类只能有一个主键的情况
throw new ExceptionErrorPrimaryKeyNumber();
}
query.Wheres.AddEqualPair(primaryKeys[0], pkValue);
return(GetItem(query));
}
//通过多个主键查询
public T GetItemByPK(BaseTO to)
{
Query query = new Query();
string tableName = BaseTO.GetTableName <T>();
query.Selects = GetEntityExtendQuery();
string[] primaryKeys = to.GetPrimaryKey <T>();
if (null == primaryKeys || 0 == primaryKeys.Length)
{
throw new ExceptionNoPrimaryKey();
}
foreach (string pkName in primaryKeys)
{
query.Wheres.AddSql(string.Format("{0} = @{0}", pkName), new string[] { "@" + pkName });
query.Parameters.Add("@" + pkName, new Query.ParameterItem()
{
Type = SqlDbType.NVarChar,
Value = to.GetPropertyValue(pkName).ToString()
});
//query.Wheres.AddEqualPair(pkName, to.GetPropertyValue(pkName).ToString());
}
return(GetItem(query));
}
/// <summary>
/// 根据多个主键ID查询
/// </summary>
/// <param name="ids"></param>
/// <returns></returns>
public List <T> GetItemByPK(long[] ids)
{
Query query = new Query();
string tableName = BaseTO.GetTableName <T>();
query.Selects = GetEntityExtendQuery();
string[] primaryKeys = BaseTO.GetSQLPrimaryKey(tableName);
if (null == primaryKeys || 0 == primaryKeys.Length)
{
throw new ExceptionNoPrimaryKey();
}
if (1 < primaryKeys.Length)
{
//此方法只用于实体类只能有一个主键的情况
throw new ExceptionErrorPrimaryKeyNumber();
}
if (ids == null || ids.Length < 1)
{
ids = new long[] { 0 };
}
query.Wheres.AddSql(primaryKeys[0] + " in (" + string.Join(",", ids) + ")");
//query.Wheres.AddEqualPair(primaryKeys[0], id);
return(GetItems(query));
}
public BaseDAO(string connectionName)
{
_tableName = BaseTO.GetTableName <T>();
_connectionName = connectionName;
}
public BaseDAO()
{
_tableName = BaseTO.GetTableName <T>();
_connectionName = SqlServerSet.ConnectionName;
}
public static Query.SelectItemCollection GetEntityExtendQuery()
{
string tableName = BaseTO.GetTableName <T>();
return(entityExtendQuery.ThreadSafeRead <string, Query.SelectItemCollection>(tableName, "entityExtendQuery"));
}
public static void SetEntityExtendQuery(Query.SelectItemCollection extQuerys)
{
string tableName = BaseTO.GetTableName <T>();
entityExtendQuery.ThreadSafeWrite <string, Query.SelectItemCollection>(tableName, extQuerys, "entityExtendQuery");
}