public IncludedResultList CreateIncludedResults(IEnumerable<SubResult> subResults)
{
IncludedResultList result = new IncludedResultList();
if (subResults == null)
return result;
var metadata = MetadataHelper.EnsureMetadataInitialized(this._domainService);
int rowCount = 0;
foreach (SubResult subResult in subResults)
{
var dbSetInfo = metadata.dbSets[subResult.dbSetName];
if (result.Any(r => r.dbSetName == subResult.dbSetName))
throw new DomainServiceException(string.Format("The included results already have {0} entities", dbSetInfo.dbSetName));
LinkedList<object> entityList = new LinkedList<object>();
foreach (object entity in subResult.Result)
{
entityList.AddLast(entity);
++rowCount;
}
RowGenerator rowGenerator = new RowGenerator(dbSetInfo, entityList, this._dataHelper);
IncludedResult current = new IncludedResult { dbSetName = dbSetInfo.dbSetName, rows = rowGenerator.CreateDistinctRows(ref rowCount), names = dbSetInfo.GetNames() };
current.rowCount = rowCount;
result.Add(current);
}
return result;
}
private void CreateIncludedResult(DbSetInfo dbSetInfo, IEnumerable<object> inputEntities, string propertyName, string[] nextParts, Dictionary<string, IncludedResult> visited)
{
var metadata = MetadataHelper.EnsureMetadataInitialized(this._domainService);
bool isChildProperty = false;
DbSetInfo nextDbSetInfo = null;
var assoc = metadata.associations.Values.Where(a => a.parentDbSetName == dbSetInfo.dbSetName && a.parentToChildrenName == propertyName).FirstOrDefault();
if (assoc != null)
{
isChildProperty = true;
nextDbSetInfo = metadata.dbSets[assoc.childDbSetName];
}
else
{
assoc = metadata.associations.Values.Where(a => a.childDbSetName == dbSetInfo.dbSetName && a.childToParentName == propertyName).FirstOrDefault();
if (assoc == null)
{
throw new DomainServiceException(string.Format(ErrorStrings.ERR_INCL_NAVIG_INVALID, propertyName + (nextParts.Length > 0 ? ("." + string.Join(".", nextParts)) : "")));
}
nextDbSetInfo = metadata.dbSets[assoc.parentDbSetName];
}
if (visited.ContainsKey(nextDbSetInfo.dbSetName + "." + propertyName))
return;
int rowCount = 0;
object propValue;
LinkedList<object> resultEntities = new LinkedList<object>();
foreach (object entity in inputEntities)
{
propValue = this._dataHelper.GetValue(entity, propertyName, true);
if (isChildProperty && propValue is IEnumerable)
{
foreach (object childEntity in (IEnumerable)propValue)
{
resultEntities.AddLast(childEntity);
++rowCount;
}
}
else if (!isChildProperty && propValue != null)
{
resultEntities.AddLast(propValue);
++rowCount;
}
}
//create temporary result without rows
//fills rows at the end of the method
IncludedResult current = new IncludedResult { dbSetName = nextDbSetInfo.dbSetName, rows = new Row[0], names = nextDbSetInfo.GetNames() };
visited.Add(nextDbSetInfo.dbSetName + "." + propertyName, current);
if (nextParts.Length > 0)
this.CreateIncludedResult(nextDbSetInfo, resultEntities, nextParts[0], nextParts.Skip(1).ToArray(), visited);
RowGenerator rowGenerator = new RowGenerator(nextDbSetInfo, resultEntities, this._dataHelper);
current.rows = rowGenerator.CreateDistinctRows(ref rowCount);
current.rowCount = rowCount;
}