/// <summary>
/// 新增数据
/// </summary>
/// <typeparam name="T">要新增的数据类型</typeparam>
/// <param name="newitem">要新增的数据</param>
/// <param name="noty">新增数据的通知</param>
/// <returns>返回新增数据的上下文</returns>
protected DataUpdateContext AddNewData <T>(T newitem, IUpdateDataNoty noty)
{
CheckDataModelIsCanUpdate <T>();
DataUpdateContext dc = new DataUpdateContext()
{
CheckRangle = FieldSelectRange.All,
UpdateRangle = FieldSelectRange.All,
Data = newitem,
ModalState = ModalState.AddNew,
ModalType = typeof(T),
UpdateDataNoty = noty
};
AddUpdateContext(dc);
return(dc);
}
/// <summary>
/// 通过主键值删除数据
/// </summary>
/// <typeparam name="T">要删除的数据类型</typeparam>
/// <param name="id">要删除的数据的主键值</param>
/// <param name="noty">删除数据的通知</param>
/// <returns>返回删除数据的上下文</returns>
protected DataUpdateContext DeleteDataById <T>(long id, IUpdateDataNoty noty)
where T : class, IDataId, new()
{
CheckDataModelIsCanUpdate <T>();
T delitem = new T();
delitem.Id = id;
DataUpdateContext dc = new DataUpdateContext()
{
Data = delitem,
ModalState = ModalState.Delete,
ModalType = typeof(T),
UpdateDataNoty = noty
};
AddUpdateContext(dc);
return(dc);
}
/// <summary>
/// 完整的修改数据
/// </summary>
/// <typeparam name="T">要修改的数据类型</typeparam>
/// <param name="updateitem">要修改的数据</param>
/// <param name="noty">修改数据的通知</param>
/// <returns>返回修改数据的上下文</returns>
protected DataUpdateContext UpdateData <T>(T updateitem, IUpdateDataNoty noty)
{
return(UpdateData(updateitem, FieldSelectRange.All, null, noty));
}
/// <summary>
/// 修改数据
/// </summary>
/// <typeparam name="T">要修改的数据类型</typeparam>
/// <param name="updateitem">要修改的数据</param>
/// <param name="updaterangle">要修改的数据的字段范围</param>
/// <param name="updatefieldnames">updaterangle指定的范围的字段数组</param>
/// <param name="noty">修改数据的通知</param>
/// <returns>返回修改数据的上下文</returns>
protected DataUpdateContext UpdateData <T>(T updateitem, FieldSelectRange updaterangle, IEnumerable <string> updatefieldnames, IUpdateDataNoty noty)
{
CheckDataModelIsCanUpdate <T>();
DataUpdateContext dc = new DataUpdateContext()
{
CheckRangle = updaterangle,
CheckFieldNames = updatefieldnames,
UpdateRangle = updaterangle,
UpdateFieldNames = updatefieldnames,
Data = updateitem,
ModalState = ModalState.Update,
ModalType = typeof(T),
UpdateDataNoty = noty
};
string softdelKey = typeof(T).GetDataModel().GetSoftDeleteFieldName();
if (!string.IsNullOrEmpty(softdelKey))
{
switch (updaterangle)
{
case FieldSelectRange.All:
{
dc.CheckRangle = FieldSelectRange.IgnoreFields;
dc.CheckFieldNames = new string[] { softdelKey };
dc.UpdateRangle = FieldSelectRange.IgnoreFields;
dc.UpdateFieldNames = new string[] { softdelKey };
break;
}
case FieldSelectRange.IgnoreFields:
{
IEnumerable <string> x = new string[] { softdelKey };
if (updatefieldnames != null)
{
if (updatefieldnames.FirstOrDefault(f => string.Equals(f, softdelKey, StringComparison.OrdinalIgnoreCase)) == null)
{
x = x.Union(updatefieldnames);
}
else
{
x = updatefieldnames;
}
}
dc.CheckFieldNames = x;
dc.UpdateFieldNames = x;
break;
}
case FieldSelectRange.OnlyFields:
{
if (updatefieldnames != null)
{
IEnumerable <string> x = updatefieldnames.Where(f => !string.Equals(f, softdelKey, StringComparison.OrdinalIgnoreCase)).ToArray();
dc.CheckFieldNames = x;
dc.UpdateFieldNames = x;
}
break;
}
}
}
AddUpdateContext(dc);
return(dc);
}
