V15: Implement content type filtering for in-memory navigation structure

[elit0451]

Details

• Adding content type key property to NavigationNode and loading it from the DB when refreshing the content of the navigation structure;
  • Updating the SQL query in FetchNavigationDtos();
  • Updating the implementation to pass in a content type when adding a node to the navigation str.
• Building a map of content type alias to key so we can look up the aliases which are being queried;
• Adding generics to ContentNavigationServiceBase and updating its extending classes;
• Adding TryGetChildrenKeysOfType(), TryGetDescendantsKeysOfType(), TryGetAncestorsKeysOfType(), TryGetSiblingsKeysOfType() and TryGetRootKeysOfType();
• Adding unit and integration tests + test data refactoring;
• Fix PublishedContentExtensions to use the new filtering methods (more performant) instead of using the cache to resolve the IPublishedContent items and then apply content type filtering;
• Adding .Parent() friendly extension method, without a specific type.

Test

• Make sure all new tests pass;
• Using any of the affected PublishedContentExtensions methods in a document type template hasn't changed the functionality;
  • Keep in mind that you need to create a content tree with different content types (with template) to see the filtering take effect.
• To test the new .Parent() from the FriendlyPublishedContentExtensions - you can add <h1>Hello from "@Model.Parent().Name"</h1> to a child template.

---

Template example for SiblingsOfType()

@using Umbraco.Cms.Web.Common.PublishedModels;
@inherits Umbraco.Cms.Web.Common.Views.UmbracoViewPage
@using Umbraco.Cms.Core
@using Umbraco.Cms.Core.Models.PublishedContent
@using Umbraco.Cms.Core.PublishedCache
@using Umbraco.Cms.Core.Routing
@using Umbraco.Cms.Core.Services.Navigation
@using Umbraco.Extensions

@inject IPublishedValueFallback PublishedValueFallback
@inject IPublishedUrlProvider PublishedUrlProvider
@inject IVariationContextAccessor VariationContextAccessor
@inject IPublishedContentCache PublishedContentCache
@inject IDocumentNavigationQueryService DocumentNavigationQueryService
@{
	Layout = null;
}

<h2>Experiments with extensions</h2>

@{ var selection = Model.SiblingsOfType(VariationContextAccessor, PublishedContentCache, DocumentNavigationQueryService, "contentPage").Where(x => x.IsVisible(PublishedValueFallback)).ToArray(); }

@* Ensure that the Current Page has siblings *@
@if (selection?.Length > 0)
{
    @foreach (var item in selection)
    {
        <li>
	    <a href="@item.Url(PublishedUrlProvider)">@item.Name</a>
	</li>
    }
}

[Zeegaan]

Looks good, works great 🚀