Field Is No Longer Indexed in the Sitecore Items

You can create a processor in the coveoPostItemProcessingPipeline that adds legacy metadata back into your documents.

To create a processor that adds the majority of the legacy fields and their values into the documents

1. Create a new C# file called AddLegacyFields.cs.

2. Paste the code below in the AddLegacyFields.cs file.

   using System;
   using Sitecore.ContentSearch.ComputedFields;
   using Sitecore.ContentSearch;
   using Sitecore;
   using Sitecore.Data.Items;
   using Sitecore.Data.Fields;
   using Sitecore.Data;
   using Coveo.Framework.CNL;
   using Coveo.Framework.Log;
   using Coveo.Framework.Pipelines;
   using Coveo.Framework.Processor;
   using Coveo.SearchProvider.Pipelines;
   using Coveo.AbstractLayer.Security;
   using Coveo.AbstractLayer.RepositoryItem;
   using Coveo.AbstractLayer.FieldManagement;
   using System.Linq;
   using Coveo.Framework.Collections;
   using System.Collections.Generic;
   namespace Coveo.AddLegacyFields
   {
       public class AddLegacyFieldsMetadata : IProcessor<CoveoPostItemProcessingPipelineArgs> 
       {
           private static readonly ILogger s_Logger = CoveoLogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
           public bool AddBaseItemFields { get; set; } = true;
           public bool AddLayoutFields { get; set; } = true;
           public bool AddMediaItemFields { get; set; } = true;
           public bool AddItemUriFields { get; set; } = true;
           public bool AddPathsFields { get; set; } = true;
           public bool AddStatisticsFields { get; set; } = true;
           public void Process(CoveoPostItemProcessingPipelineArgs p_Args)
           {
               SitecoreIndexableItem sii = p_Args.Item as SitecoreIndexableItem;
               if (sii != null) {
                   p_Args.OutputCoveoItems.Select(item => {
                       s_Logger.Debug("Adding legacy fields for item ID: " + item.UniqueId.ToString());
                       return new LegacyMetadataFiller(item);
                   }).ForEach(filler => {
                       if (AddBaseItemFields) filler.AddBaseItemMetadata(sii);
                       if (AddLayoutFields) filler.AddLayoutMetadata(sii);
                       if (AddMediaItemFields) filler.AddMediaItemMetadata(sii);
                       if (AddItemUriFields) filler.AddItemUriMetadata(sii);
                       if (AddPathsFields) filler.AddPathsMetadata(sii);
                       if (AddStatisticsFields) filler.AddStatisticsMetadata(sii);
                   });
               }
           }
       }
       internal class LegacyMetadataFiller 
       {
           private readonly CoveoIndexableItem m_CoveoItem;
           public LegacyMetadataFiller(CoveoIndexableItem p_IndexableItem) 
           {
               m_CoveoItem = p_IndexableItem;
           }
           public void AddBaseItemMetadata(Item p_Item) 
           {
               FillWithLegacyItemMetadata(p_Item);
           }
           private void FillWithLegacyItemMetadata(Item p_Item) 
           {
               m_CoveoItem.SetMetadata("BranchId", p_Item.BranchId.ToString());
               m_CoveoItem.SetMetadata("DatabaseName", p_Item.Database?.Name);
               m_CoveoItem.SetMetadata("DisplayName", p_Item.DisplayName);
               m_CoveoItem.SetMetadata("HasClones", p_Item.HasClones ? "1" : "0");
               m_CoveoItem.SetMetadata("IsClone", p_Item.IsClone ? "1" : "0");
               m_CoveoItem.SetMetadata("IsItemClone", p_Item.IsItemClone ? "1" : "0");
               m_CoveoItem.SetMetadata("Key", p_Item.Key);
               m_CoveoItem.SetMetadata("Empty", p_Item.Empty ? "1" : "0");
               m_CoveoItem.SetMetadata("HasChildren", p_Item.HasChildren ? "1" : "0");
               m_CoveoItem.SetMetadata("ID", p_Item.ID.Guid.ToString());
               m_CoveoItem.SetMetadata("Modified", p_Item.Modified ? "1" : "0");
               m_CoveoItem.SetMetadata("Name", p_Item.Name);
               m_CoveoItem.SetMetadata("OriginatorID", p_Item.OriginatorId.ToString());
               m_CoveoItem.SetMetadata("TemplateID", p_Item.TemplateID.Guid.ToString());
               m_CoveoItem.SetMetadata("TemplateName", p_Item.TemplateName);
               if (p_Item.Language != null) m_CoveoItem.SetMetadata("Language", p_Item.Language.ToString());
               if (p_Item.Version != null) m_CoveoItem.SetMetadata("Version", p_Item.Version.ToString());
           }
           public void AddLayoutMetadata(Item p_Item) 
           {
               LayoutItem layout = p_Item?.Visualization?.Layout;
               if (layout != null) FillWithLegacyLayoutMetadata(layout);
           }
           private void FillWithLegacyLayoutMetadata(LayoutItem p_Layout) 
           {
               m_CoveoItem.SetMetadata("LayoutControl", p_Layout.Control);
               m_CoveoItem.SetMetadata("LayoutDisplayName", p_Layout.DisplayName);
               m_CoveoItem.SetMetadata("LayoutFilePath", p_Layout.FilePath);
               m_CoveoItem.SetMetadata("LayoutControl", p_Layout.Control);
               m_CoveoItem.SetMetadata("LayoutName", p_Layout.Name);
           }
           public void AddMediaItemMetadata(Item p_Item) 
           {
               if (p_Item.Paths.IsMediaItem) {
                   MediaItem mediaItem = p_Item;
                   if (mediaItem != null) FillWithLegacyMediaItemMetadata(mediaItem);
               }
           }
           private void FillWithLegacyMediaItemMetadata(MediaItem p_Media) 
           {
               m_CoveoItem.SetMetadata("Alt", p_Media.Alt);
               m_CoveoItem.SetMetadata("Extension", p_Media.Extension);
               m_CoveoItem.SetMetadata("FileBased", p_Media.FileBased);
               m_CoveoItem.SetMetadata("FilePath", p_Media.FilePath);
               m_CoveoItem.SetMetadata("Description", p_Media.Description);
               m_CoveoItem.SetMetadata("Size", p_Media.Size);
               m_CoveoItem.SetMetadata("Title", p_Media.Title);
               foreach (KeyValuePair<string, string> metadata in p_Media.GetMetaData()) 
               {
                   if (!String.IsNullOrEmpty(metadata.Key)) {
                       m_CoveoItem.SetMetadata(metadata.Key, metadata.Value);
                   }
               }
           }
           public void AddItemUriMetadata(Item p_Item) 
           {
               ItemUri uri = p_Item.Uri;
               if (uri != null) FillWithLegacyItemUriMetadata(uri);
           }
           private void FillWithLegacyItemUriMetadata(ItemUri p_Uri) 
           {
               m_CoveoItem.SetMetadata("DataUri", p_Uri.ToDataUri()?.ToString());
               m_CoveoItem.SetMetadata("DefaultUri", p_Uri.ToString());
               m_CoveoItem.SetMetadata("UrlString", p_Uri.ToUrlString("")?.ToString());
           }
           public void AddPathsMetadata(Item p_Item) {
               ItemPath path = p_Item.Paths;
               if (path != null) FillWithLegacyPathsMetadata(path);
           }
           private void FillWithLegacyPathsMetadata(ItemPath p_Path) 
           {
               m_CoveoItem.SetMetadata("ContentPath", p_Path.ContentPath);
               m_CoveoItem.SetMetadata("FullPath", p_Path.FullPath);
               m_CoveoItem.SetMetadata("IsContentItem", p_Path.IsContentItem ? "1" : "0");
               m_CoveoItem.SetMetadata("IsFullyQualified", p_Path.IsFullyQualified ? "1" : "0");
               m_CoveoItem.SetMetadata("IsMasterPart", p_Path.IsMasterPart ? "1" : "0");
               m_CoveoItem.SetMetadata("IsMediaItem", p_Path.IsMediaItem ? "1" : "0");
               m_CoveoItem.SetMetadata("LongID", p_Path.LongID);
               m_CoveoItem.SetMetadata("MediaPath", p_Path.MediaPath);
               m_CoveoItem.SetMetadata("ParentPath", p_Path.ParentPath);
           }
           public void AddStatisticsMetadata(Item p_Item) 
           {
               ItemStatistics stats = p_Item.Statistics;
               if (stats != null) FillWithLegacyStatisticsMetadata(stats);
           }
           private void FillWithLegacyStatisticsMetadata(ItemStatistics p_Stats) 
           {
               m_CoveoItem.SetMetadata("Created", p_Stats.Created);
               m_CoveoItem.SetMetadata("CreatedBy", p_Stats.CreatedBy);
               m_CoveoItem.SetMetadata("Revision", p_Stats.Revision);
               m_CoveoItem.SetMetadata("Updated", p_Stats.Updated);
               m_CoveoItem.SetMetadata("UpdatedBy", p_Stats.UpdatedBy);
           }
       }
   }
   

3. Save and compile the AddLegacyFields.cs file in your project.

To create and add a configuration to invoke the processor

1. Create a new file using a text editor.

2. Paste the content below in your new file.

   <configuration xmlns:patch="http://www.sitecore.net/xmlconfig/">
     <sitecore>
       <pipelines>
         <coveoPostItemProcessingPipeline>
           <!-- Ensure that the processor type attribute value below matches your compiled namespace and assembly name. -->
           <processor type="Coveo.AddLegacyFields.AddLegacyFieldsMetadata, AddLegacyFields" />
         </coveoPostItemProcessingPipeline>
         <coveoIndexingGetFields>
           <processor
             patch:before="processor[@type='Coveo.AbstractLayer.Processors.Indexing.Fields.IncludeFieldsFromConfigOnlyProcessor, Coveo.AbstractLayer']"
             type="Coveo.AbstractLayer.Processors.Indexing.Fields.AddCoveoFieldsProcessor, Coveo.AbstractLayer" />
         </coveoIndexingGetFields>
       </pipelines>
     </sitecore>
   </configuration>
   

3. Ensure that your processor type attribute value matches the compiled namespace and assembly name.
4. Save the file as Coveo.z.ComputeLegacyFields.config in the <SITECORE_INSTANCE_ROOT>\Website\App_Config\Include\Coveo folder (for Sitecore 7 and 8 instances) or the <SITECORE_INSTANCE_ROOT>\App_Config\Include\Coveo folder (for Sitecore 9 instances).
5. Rebuild your indexes.