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  • Daniel Rogers 84 posts 420 karma points
    19 days ago
    Daniel Rogers
    0

    Exmaine a field containing Multinode tree content

    Using Umbraco8

    I have to field on my product listing 1. Multinode tree of Brands "productBrand" 2. Multinode tree of Categories "productCategory"

    I are using Examine "ExternalIndexes" to get a list of all the products and this is working.

    But how do I get a list filtered by my 2 Multinode trees.

    I can pass the field name thats easy, but what do I do for the criteria

  • Erik Eelman 62 posts 240 karma points
    15 days ago
    Erik Eelman
    0

    Hi Daniel,

    You can add a custom field to the index with the parsed names or id's of your selected multinode tree picker items. Something like this:

    public class IndexComponent : IComponent
        {
            private readonly IExamineManager _examineManager;
            private readonly IUmbracoContextFactory _umbracoContextFactory;
    
            public IndexComponent(IExamineManager examineManager,
                                  IUmbracoContextFactory umbracoContextFactory)
            {
                _websiteIndexCreator = websiteIndexCreator;
                _examineManager = examineManager;
                _umbracoContextFactory = umbracoContextFactory;
            }
    
            public void Initialize()
            {
                if (_examineManager.TryGetIndex(Constants.UmbracoIndexes.ExternalIndexName, out IIndex websiteIndex))
                {
                    websiteIndex.FieldDefinitionCollection.AddOrUpdate(new FieldDefinition("productBrand_parsed", FieldDefinitionTypes.FullText));
                }
            }
    
            private void OnIndexTransform(object sender, IndexingItemEventArgs e)
            {
                using (var context = _umbracoContextFactory.EnsureUmbracoContext())
                {
                    var contentId = int.Parse(e.ValueSet.Id);
                    var content = context.UmbracoContext.Content.GetById(contentId);
                    if (content is YourPageType contentPage)
                    {
                        e.ValueSet.Add(productBrand_parsed, string.Join(",", contentPage.ProductBrand.Select(x => x.Name)));
                    }
    
                }
            }
    
            public void Terminate()
            { }
        }
    

    After this your index has a new field called: productBrand_parsed. You can search in this field with the name of the brand.

    You can find more information about custimizing the index here:

    https://our.umbraco.com/documentation/reference/searching/Examine/indexing/

  • Daniel Rogers 84 posts 420 karma points
    1 week ago
    Daniel Rogers
    100

    Thanks Erik for the help.

    Im getting there.

    I have got to the point of registering the indexer and initializing it with 4 new fields.

    However they dont appear in the backoffice if I do a manual examine. But that might be related to my next points.

    1. What is the purpose of this line

      _websiteIndexCreator = websiteIndexCreator;

    2. what triggers OnIndexTransform function as if I break point here the code never breaks.

  • Erik Eelman 62 posts 240 karma points
    1 week ago
    Erik Eelman
    1

    Hi Daniel,

    I see i forgot to add some code when creating the example. The init function needs some code to bind the onIndexTransform event:

    if (websiteIndex is BaseIndexProvider baseIndex)
    {
         baseIndex.TransformingIndexValues += OnIndexTransform;
    }
    

    So you need to update the initialize function to something like this:

     public void Initialize()
        {
            if (_examineManager.TryGetIndex(Constants.UmbracoIndexes.ExternalIndexName, out IIndex websiteIndex))
            {
                websiteIndex.FieldDefinitionCollection.AddOrUpdate(new FieldDefinition("productBrand_parsed", FieldDefinitionTypes.FullText));
    
                if (websiteIndex is BaseIndexProvider baseIndex)
                {
                    baseIndex.TransformingIndexValues += OnIndexTransform;
                }
            }
        }
    

    You can remove the part with:

    websiteIndexCreator = websiteIndexCreator;
    
  • Daniel Rogers 84 posts 420 karma points
    1 week ago
    Daniel Rogers
    0

    Thanks Erik for the help.

    Im getting there.

    I have got to the point of registering the indexer and initializing it with 4 new fields.

    However they dont appear in the backoffice if I do a manual examine. But that might be related to my next points.

    1. What is the purpose of this line

      _websiteIndexCreator = websiteIndexCreator;

    2. what triggers OnIndexTransform function as if I break point here the code never breaks.

  • Daniel Rogers 84 posts 420 karma points
    1 week ago
    Daniel Rogers
    0

    Thanks Erik for you help.

    With a few changes I have got it going.

    needed to add

    public class CustomizeIndexComposer : ComponentComposer<IndexComponent> { }
    

    before

    public class public class IndexComponent : IComponent
    ...}
    

    to register the composer

    e.ValueSet.Add(productBrand_parsed, string.Join(",", contentPage.ProductBrand.Select(x => x.Name)));
    

    changed to

                Ibd_eCommerce_Brand brand = (Ibd_eCommerce_Brand)contentPage.ProductBrand ;
    
                e.ValueSet.Add("productBrand_parsed", string.Join(",", brand.Id.ToString()));
    

    didn't like .Select

    on side not are you able to give me some insite to this issue as well

    https://our.umbraco.com/forum/using-umbraco-and-getting-started/107288-examine-get-exact-doc-type

    Sorry Erik I marked the wrong post as the solution. Your too answers are the solution.

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