public ValuesService(IUnitOfWork unitOfWork)
{
_unitOfWork = unitOfWork;
_valuesRepo = _unitOfWork.GetRepository <ValueRecord>();
_changeLogRepo = _unitOfWork.GetRepository <ChangeLogRecord>();
_changeLogValueRepo = _unitOfWork.GetRepository <ChangeLogValueRecord>();
_currentSortDirection = new CurrentSortDirection(_unitOfWork);
}
private DetachedCriteria AddSortingField(string currentSortingExpression,
SortDirection currentSortDirection)
{
if (!AllowMultiColumnSorting)
{
//todo 清空排序字段
SortingFields = new List <IDictionary <string, string> >();
}
SortExpression = currentSortingExpression;
if (CurrentSortDirection == SortDirection.Ascending)
{
currentSortDirection = SortDirection.Ascending;
CurrentSortDirection = SortDirection.Descending;
}
else
{
currentSortDirection = SortDirection.Descending;
CurrentSortDirection = SortDirection.Ascending;
}
IList <IDictionary <string, string> > newSortingFields = new List <IDictionary <string, string> >();
for (int i = SortingFields.Count - 3; i < SortingFields.Count; i++)
{
if (i < 0)
{
continue;
}
IDictionary <string, string> field = SortingFields[i];
//用户指定排序字段和之前旧的排序字段重复的话，旧的排序字段不添加到排序列中
if (!field.ContainsKey(SortExpression))
{
newSortingFields.Add(field);
}
}
IDictionary <string, string> newField = new Dictionary <string, string>();
newField.Add(SortExpression, CurrentSortDirection.ToString());
newSortingFields.Add(newField);
SortingFields = newSortingFields;
if (newSortingFields.Count > 3)
{
newSortingFields.RemoveAt(0);
}
return(this.AddSortingField());
}
