public static Operation.Filter.Sort LoadSortFilterFromXML(Node node, XmlElement root)
{
Database.Operation.Filter.Sort f = new Operation.Filter.Sort();
// if the element has children, do not process it as a sort level.
if (root.ChildNodes.Count == 0)
{
string colName;
string strOrder;
if (DebugUtility.TryGetMandatoryXmlAttribute(root, "column", out colName) &&
DebugUtility.TryGetMandatoryXmlAttribute(root, "order", out strOrder))
{
SortOrder order = SortOrderString.StringToSortOrder(strOrder, SortOrder.Ascending);
f.SortLevel.Add(new Operation.Filter.Sort.LevelByName(colName, order));
}
}
//Process children as sort level
foreach (XmlNode xNode in root.ChildNodes)
{
if (xNode.NodeType == XmlNodeType.Element)
{
XmlElement e = (XmlElement)xNode;
if (e.Name == "Level")
{
string colNameL;
string strOrderL;
if (DebugUtility.TryGetMandatoryXmlAttribute(e, "column", out colNameL) &&
DebugUtility.TryGetMandatoryXmlAttribute(e, "order", out strOrderL))
{
var orderL = SortOrderString.StringToSortOrder(strOrderL, SortOrder.Ascending);
f.SortLevel.Add(new Operation.Filter.Sort.LevelByName(colNameL, orderL));
}
}
else
{
//DebugUtility.LogInvalidXmlChild(root, e);
}
}
}
if (f.SortLevel.Count == 0)
{
return(null);
}
return(f);
}
public static Operation.Filter.Filter LoadSubFilterFromXML(Node node, XmlElement root)
{
Operation.Filter.Multi multi = null;
Operation.Filter.Filter lastFilter = null;
Operation.Filter.Sort sortFilter = null;
foreach (XmlNode xNode in root.ChildNodes)
{
if (xNode.NodeType == XmlNodeType.Element)
{
XmlElement e = (XmlElement)xNode;
Operation.Filter.Filter filter = null;
if (e.Name == "Group")
{
filter = LoadGroupFilterFromXML(node, e);
}
else if (e.Name == "Sort")
{
sortFilter = LoadSortFilterFromXML(node, e);
if (node.defaultAllLevelSortFilter != null)
{
Operation.Filter.DefaultSort ds = new Operation.Filter.DefaultSort(node.defaultAllLevelSortFilter, sortFilter);
filter = ds;
}
else
{
filter = sortFilter;
}
}
else if (e.Name == "DefaultSort")
{
//skip this element as it is processed by LoadFilterFromXML
}
else
{
//DebugUtility.LogInvalidXmlChild(root, e);
}
if (lastFilter != null)
{
if (multi == null)
{
multi = new Operation.Filter.Multi();
}
multi.filters.Add(lastFilter);
}
lastFilter = filter;
}
}
//add all level sort filter if we haven't already
if (sortFilter == null && node.defaultAllLevelSortFilter != null)
{
Operation.Filter.DefaultSort ds = new Operation.Filter.DefaultSort(node.defaultAllLevelSortFilter, null);
//must use the multi filter if we have a lastFilter or already have a multi filter.
//we could have a multi filter and still have lastFilter == null if the lastfilter creation failed.
if (lastFilter != null || multi != null)
{
if (multi == null)
{
multi = new Operation.Filter.Multi();
}
if (lastFilter != null)
{
multi.filters.Add(lastFilter);
}
multi.filters.Add(ds);
if (multi.filters.Count > 1)
{
return(multi);
}
}
return(ds);
}
else
{
//we have a sort filter already or we do not have a all-level sort filter
if (multi != null)
{
if (lastFilter != null)
{
multi.filters.Add(lastFilter);
}
if (multi.filters.Count > 1)
{
return(multi);
}
}
return(lastFilter);
}
}
