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Add page fragments support to Related
The main topic of this commit is that you can now index fragments (content heading identifiers) when calling `.Related`. You can do this by: * Configure one or more indices with type `fragments` * The name of those index configurations maps to an (optional) front matter slice with fragment references. This allows you to link page<->fragment and page<->page. * This also will index all the fragments (heading identifiers) of the pages. It's also possible to use type `fragments` indices in shortcode, e.g.: ``` {{ $related := site.RegularPages.Related .Page }} ``` But, and this is important, you need to include the shortcode using the `{{<` delimiter. Not doing so will create infinite loops and timeouts. This commit also: * Adds two new methods to Page: Fragments (can also be used to build ToC) and HeadingsFiltered (this is only used in Related Content with index type `fragments` and `enableFilter` set to true. * Consolidates all `.Related*` methods into one, which takes either a `Page` or an options map as its only argument. * Add `context.Context` to all of the content related Page API. Turns out it wasn't strictly needed for this particular feature, but it will soon become usefil, e.g. in #9339. Closes #10711 Updates #9339 Updates #10725
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@@ -36,3 +36,19 @@ type ProbablyEqer interface {
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type Comparer interface {
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Compare(other any) int
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}
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// Eq returns whether v1 is equal to v2.
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// It will use the Eqer interface if implemented, which
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// defines equals when two value are interchangeable
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// in the Hugo templates.
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func Eq(v1, v2 any) bool {
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if v1 == nil || v2 == nil {
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return v1 == v2
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}
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if eqer, ok := v1.(Eqer); ok {
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return eqer.Eq(v2)
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}
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return v1 == v2
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}
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