/// <summary>
/// Adds an item to the sorting list. If it exists already, it will be superceded (deprioritized), unless the existing
/// item is marked as "Required" or "RequiredOrder." In the first case, only the order (asc or desc) will be changed to
/// the current value. In the 2nd case, no changes will be made.
/// </summary>
/// <param name="field"></param>
/// <param name="order"></param>
/// <param name="priority"></param>
/// <returns></returns>
public ISqlQuery AddSort(string field, SortOrder order, SortPriority priority)
{
if (String.IsNullOrEmpty(field))
{
throw new Exception("The field name cannot be missing to add a sort");
}
string sortOrder = order == SortOrder.Ascending ? "" : " DESC";
int index = sortCriterionList.Count - 1;
string fieldNameClean = unAliased(field.Trim().ToLower());
bool found = false;
while (index >= 0)
{
var item = sortCriterionList[index];
if (item.Field == fieldNameClean)
{
switch (item.Priority)
{
case SortPriority.RequiredOrder:
found = true;
index = -1;
break;
case SortPriority.Required:
sortCriterionList[index] = new SortCriterion(fieldNameClean, order, item.Priority);
sortCriterionList[index].Owner = this;
index = -1;
found = true;
break;
default:
sortCriterionList.RemoveAt(index);
break;
}
}
index--;
}
if (!found)
{
var crit = new SortCriterion(fieldNameClean, order, priority);
crit.Owner = this;
sortCriterionList.Add(crit);
Touch();
}
return(this);
}
public SortCriterion Clone()
{
SortCriterion clone = new SortCriterion(Field, Order, Priority);
return(clone);
}
/// <summary>
/// Adds an item to the sorting list. If it exists already, it will be superceded (deprioritized), unless the existing
/// item is marked as "Required" or "RequiredOrder." In the first case, only the order (asc or desc) will be changed to
/// the current value. In the 2nd case, no changes will be made.
/// </summary>
/// <param name="field"></param>
/// <param name="order"></param>
/// <param name="priority"></param>
/// <returns></returns>
public ISqlQuery AddSort(string field, SortOrder order, SortPriority priority)
{
if (String.IsNullOrEmpty(field))
{
throw new Exception("The field name cannot be missing to add a sort");
}
string sortOrder = order == SortOrder.Ascending ? "" : " DESC";
int index = sortCriterionList.Count - 1;
string fieldNameClean = unAliased(field.Trim().ToLower());
bool found = false;
while (index >= 0)
{
var item = sortCriterionList[index];
if (item.Field == fieldNameClean)
{
switch (item.Priority)
{
case SortPriority.RequiredOrder:
found = true;
index = -1;
break;
case SortPriority.Required:
sortCriterionList[index] = new SortCriterion(fieldNameClean, order, item.Priority);
sortCriterionList[index].Owner = this;
index = -1;
found = true;
break;
default:
sortCriterionList.RemoveAt(index);
break;
}
}
index--;
}
if (!found)
{
var crit = new SortCriterion(fieldNameClean, order, priority);
crit.Owner = this;
sortCriterionList.Add(crit);
Touch();
}
return this;
}
public SortCriterion Clone()
{
SortCriterion clone = new SortCriterion(Field,Order,Priority);
return clone;
}
