I have configured custom index and TransformingIndexValues method to gather some additional information about nodes of type “article”. The problem is that when I create new “article” and click “Save &Publish” for first time TransformingIndexValues is not fired (or doesn’t work as expected). When I click second time “Save&Publish” everything is ok. Here is mu code:
`
private readonly IExamineManager _examineManager;
private readonly CustomIndexCreator _indexCreator;
private readonly IUmbracoContextFactory _contextFactory;
public CustomExamineComponent(IExamineManager examineManager, CustomIndexCreator indexCreator, IUmbracoContextFactory contextFactory)
{
_examineManager = examineManager;
_indexCreator = indexCreator;
_contextFactory = contextFactory;
}
public void Initialize()
{
//we want to tell examine to use a different fs lock instead of the default NativeFSFileLock which could cause problems if the AppDomain
//terminates and in some rare cases would only allow unlocking of the file if IIS is forcefully terminated. Instead we'll rely on the simplefslock
//which simply checks the existence of the lock file
DirectoryFactory.DefaultLockFactory = d =>
{
var simpleFsLockFactory = new NoPrefixSimpleFsLockFactory(d);
return simpleFsLockFactory;
};
foreach (var index in _indexCreator.Create())
{
_examineManager.AddIndex(index);
if (index.Name == "NewsSearchIndex")
{
((BaseIndexProvider)index).TransformingIndexValues += CustomExamineComponent_TransformingIndexValues;
}
}
}
private void CustomExamineComponent_TransformingIndexValues(object sender, IndexingItemEventArgs e)
{
try
{
using (var ctx = _contextFactory.EnsureUmbracoContext())
{
var cache = ctx.UmbracoContext.ContentCache;
if (e.ValueSet.ItemType == "articleDetailsPage")
{
var categoryItem = e.ValueSet.Values["category"];
if (categoryItem != null)
{
//more than one category
string[] array = categoryItem[0].ToString().Split(',');
if (array.Length > 0)
{
var sb = new StringBuilder();
for (int i = 0; i < array.Length; i++)
{
Udi udi;
if (Udi.TryParse(array[i], out udi))
{
//Get node by UDI
var guid = GuidUdi.Parse(udi.ToString());
var category = cache.GetById(guid.Guid);
if (category != null)
{
sb.Append(string.Format("{0} ", category.GetProperty("title").Value()));
}
}
}
e.ValueSet.Add("categoryValue", sb.ToString());
}
}
//get the article
var article = cache.GetById(int.Parse(e.ValueSet.Id));
e.ValueSet.Add("year", article.Ancestor<YearFolder>().Name);
e.ValueSet.Add("month", article.Ancestor<MonthFolder>().Name);
e.ValueSet.Add("monthSortOrder", article.Ancestor<MonthFolder>().SortOrder);
e.ValueSet.Add("yearSortOrder", article.Ancestor<YearFolder>().SortOrder);
}
}
catch (Exception ex)
{
throw;
}
}`
When I create item and click “Save&Publish” and then go to examine Indexes and check the item my custom fields are not there. After clicking "“save&publish” second time and to go the index - my custom values are there.
I am thinking that may be on first Save&Publish the index of the node is not created yet and I have to ensure that it exists and then add additional values.
Please help
This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/97830-examine-custom-index-transformingindexvalues