private XElement PopulateTree(XElement current, Func <DataMapping, IEnumerable <XElement> > parentGetter, Func <DataMapping, string> calculatedGetter)
{
calculatedGetter = calculatedGetter ?? (Func <DataMapping, string>)(m => m.Value);
MappedType lastType = null;
IEnumerable <XElement> parents = Enumerable.Repeat(current, 1);
foreach (var mapping in _mappings)
{
if (mapping.Type != lastType)
{
if (lastType != null)
{
if (mapping.Type.ItemType.Relationship == null)
{
current = current.AddAndReturn(new XElement("related_id"));
}
else
{
current = current.AddAndReturn(new XElement("Relationships"));
}
}
parents = null;
if (parentGetter != null)
{
parents = parentGetter.Invoke(mapping);
}
if (parents == null)
{
current = current.AddAndReturn(new XElement("Item",
new XAttribute("type", mapping.Type.ItemType.Name),
new XAttribute("typeid", mapping.Type.ItemType.Id)
));
parents = Enumerable.Repeat(current, 1);
}
var id = _mappings.FirstOrDefault(m => m.Type == mapping.Type && m.Property != null && m.Property.Name == "id");
if (id != null)
{
foreach (var parent in parents)
{
current.Add(new XAttribute("id", id.IsCalculated ? "{" + id.Value + "}" : id.Value));
}
}
}
if (mapping.Property != null)
{
foreach (var parent in parents)
{
switch (mapping.Property.Type)
{
case PropertyType.Item:
parent.Add(new XElement(mapping.Property.Name,
new XElement("Item", new XAttribute("type", mapping.Property.ItemSource.Name), new XAttribute("action", "get"),
new XElement("keyed_name",
mapping.IsCalculated
? (object)new XElement(_nsXsl + "value-of", new XAttribute("select", calculatedGetter.Invoke(mapping)))
: mapping.Value
)
)
));
break;
case PropertyType.Date:
parent.Add(new XElement(mapping.Property.Name,
mapping.IsCalculated
? (object)new XElement(_nsXsl + "value-of", new XAttribute("select", "arasx:FormatDate(" + calculatedGetter.Invoke(mapping) + ", 's')"))
: (string.IsNullOrEmpty(mapping.Value) ? "" : DateTime.Parse(mapping.Value).ToString("s"))
));
break;
default:
parent.Add(new XElement(mapping.Property.Name,
mapping.IsCalculated ? (object)new XElement(_nsXsl + "value-of", new XAttribute("select", calculatedGetter.Invoke(mapping))) : mapping.Value
));
break;
}
}
}
lastType = mapping.Type;
}
return(current);
}
