/// <summary>
/// 批量新增
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="Model"></param>
/// <param name="ConnectionName">数据库连接名字</param>
/// <returns></returns>
public static bool GTListAdd <T>(this List <T> Model, string ConnectionName = null) where T : new()
{
SQLServerDBHeper Helper = GetDBHeper(ConnectionName);
List <string> Listr = new List <string>();
string ModelName = string.Empty;
string ColumName = string.Empty;
string DbValue = string.Empty;
foreach (T item in Model)
{
PropertyInfo[] propertys = item.GetType().GetProperties();
ModelName = item.GetType().Name;
List <string> FileName = new List <string>();
List <string> Value = new List <string>();
foreach (PropertyInfo pi in propertys)
{
GDColoum objAttrs = pi.GetCustomAttribute <GDColoum>();
if (objAttrs != null)
{
object obj = pi.GetValue(item, null);
if (obj != null)
{
DbValue = pi.GetValue(item, null).DbTypeStr();
FileName.Add(pi.Name);
Value.Add(DbValue);
}
}
}
ColumName = string.Join(",", FileName);
Listr.Add("(" + string.Join(",", Value) + ")");
}
return(Helper.BsExecuteSQL("insert into " + ModelName + "(" + ColumName + ") values" + string.Join(",", Listr)));
}
/// <summary>
/// 根据条件进行更新
/// </summary>
/// <typeparam name="T">泛型类型</typeparam>
/// <param name="Model">对象</param>
/// <param name="UpCondition">更新条件</param>
/// <param name="ConnectionName">数据库连接名字</param>
/// <returns></returns>
public static bool GTUpdata <T>(this T Model, Expression <Func <T, bool> > UpCondition = null, string ConnectionName = null) where T : new()
{
SQLServerDBHeper Helper = GetDBHeper(ConnectionName);
List <SqlParameter> ListParameter = new List <SqlParameter>();
PropertyInfo[] propertys = Model.GetType().GetProperties();
string ModelName = Model.GetType().Name;
string DbValue = string.Empty;
List <string> FileName = new List <string>();
foreach (PropertyInfo pi in propertys)
{
GDColoum objAttrs = pi.GetCustomAttribute <GDColoum>();
if (objAttrs != null)
{
object obj = pi.GetValue(Model, null);
if (obj != null)
{
if (!objAttrs.IsKey)
{
FileName.Add(pi.Name + "=@" + pi.Name);
ListParameter.Add(new SqlParameter("@" + pi.Name, obj));
}
}
}
}
return(Helper.BsExecuteSQL("update " + ModelName + " set " + string.Join(",", FileName) + (UpCondition == null ? "" : " where " + UpCondition.DealExpress()), ListParameter.ToArray()));
}
/// <summary>
/// 根据主键进行更新
/// </summary>
/// <typeparam name="T">泛型类型</typeparam>
/// <param name="Model">对象</param>
/// <param name="ConnectionName">数据库连接名字</param>
/// <returns></returns>
public static bool GTUpdateKey <T>(this T Model, string ConnectionName = null) where T : new()
{
PropertyInfo[] propertys = Model.GetType().GetProperties();
List <SqlParameter> ListParameter = new List <SqlParameter>();
string ModelName = Model.GetType().Name;
string KeyStr = " and 1=2";
List <string> FileName = new List <string>();
foreach (PropertyInfo pi in propertys)
{
GDColoum objAttrs = pi.GetCustomAttribute <GDColoum>();
if (objAttrs != null)
{
object obj = pi.GetValue(Model, null);
if (obj != null)
{
if (objAttrs.IsKey)
{
KeyStr = " and " + pi.Name + "=" + obj.ToString();
}
else
{
ListParameter.Add(new SqlParameter("@" + pi.Name, obj));
FileName.Add(pi.Name + "=@" + pi.Name);
}
}
}
}
SQLServerDBHeper Helper = GetDBHeper(ConnectionName);
return(Helper.BsExecuteSQL("update " + ModelName + " set " + string.Join(",", FileName) + " where 1=1" + KeyStr, ListParameter.ToArray()));
}
/// <summary>
/// 根据主键进行删除
/// </summary>
/// <typeparam name="T">泛型类型</typeparam>
/// <param name="Model">对象</param>
/// <param name="ConnectionName">数据库连接名字</param>
/// <returns></returns>
public static bool GTDelKey <T>(this T Model, string ConnectionName = null) where T : new()
{
SQLServerDBHeper Helper = GetDBHeper(ConnectionName);
PropertyInfo[] propertys = Model.GetType().GetProperties();
string ModelName = Model.GetType().Name;
string KeyStr = " and 1=2";
foreach (PropertyInfo pi in propertys)
{
GDColoum objAttrs = pi.GetCustomAttribute <GDColoum>();
if (objAttrs != null)
{
object obj = pi.GetValue(Model, null);
if (obj != null)
{
if (objAttrs.IsKey)
{
KeyStr = " and " + pi.Name + "=" + obj.ToString();
break;
}
}
}
}
return(Helper.BsExecuteSQL("Delete from " + ModelName + " where 1=1 " + KeyStr));
}
/// <summary>
/// 根据条件进行删除
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="Model"></param>
/// <param name="Condition">删除条件</param>
/// <param name="ConnectionName">数据库连接名字</param>
/// <returns></returns>
public static bool GTDel <T>(this T Model, Expression <Func <T, bool> > Condition = null, string ConnectionName = null) where T : new()
{
SQLServerDBHeper Helper = GetDBHeper(ConnectionName);
string ModelName = Model.GetType().Name;
return(Helper.BsExecuteSQL(" delete from " + ModelName + " where 1=1 " + (Condition == null ? "" : " and " + Condition.DealExpress())));
}
/// <summary>
/// 执行多个表操作
/// </summary>
/// <param name="obj"></param>
/// <param name="Connection">数据库连接名字</param>
/// <returns></returns>
public static bool GTMergerExecute(string Connection, params object[] obj)
{
List <string> SQLStr = new List <string>();
foreach (var item in obj)
{
SQLStr.Add((item as GDModel.MergerModel).SQLStr);
}
SQLServerDBHeper Helper = GetDBHeper(Connection);
return(Helper.BsExecuteSQL(string.Join(";", SQLStr)));
}
