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+---
+title: IsAncestor
+description: Reports whether PAGE1 in an ancestor of PAGE2.
+categories: []
+keywords: []
+action:
+ related:
+ - methods/page/Ancestors
+ - methods/page/CurrentSection
+ - methods/page/FirstSection
+ - methods/page/InSection
+ - methods/page/IsDescendant
+ - methods/page/Parent
+ - methods/page/Sections
+ returnType: bool
+ signatures: [PAGE1.IsAncestor PAGE2]
+toc: true
+---
+
+{{% include "methods/page/_common/definition-of-section.md" %}}
+
+With this content structure:
+
+```text
+content/
+├── auctions/
+│ ├── 2023-11/
+│ │ ├── _index.md
+│ │ ├── auction-1.md
+│ │ └── auction-2.md
+│ ├── 2023-12/
+│ │ ├── _index.md
+│ │ ├── auction-3.md
+│ │ └── auction-4.md
+│ ├── _index.md
+│ ├── bidding.md
+│ └── payment.md
+└── _index.md
+```
+
+When rendering the "auctions" page:
+
+```go-html-template
+{{ with .Site.GetPage "/" }}
+ {{ $.IsAncestor . }} → false
+{{ end }}
+
+{{ with .Site.GetPage "/auctions" }}
+ {{ $.IsAncestor . }} → false
+{{ end }}
+
+{{ with .Site.GetPage "/auctions/2023-11" }}
+ {{ $.IsAncestor . }} → true
+{{ end }}
+
+{{ with .Site.GetPage "/auctions/2023-11/auction-2" }}
+ {{ $.IsAncestor . }} → true
+{{ end }}
+```
+
+In the examples above we are coding defensively using the [`with`] statement, returning nothing if the page does not exist. By adding an [`else`] clause we can do some error reporting:
+
+```go-html-template
+{{ $path := "/auctions/2023-11" }}
+{{ with .Site.GetPage $path }}
+ {{ $.IsAncestor . }} → true
+{{ else }}
+ {{ errorf "Unable to find the section with path %s" $path }}
+{{ end }}
+ ```
+
+## Understanding context
+
+Inside of the `with` block, the [context] (the dot) is the section `Page` object, not the `Page` object passed into the template. If we were to use this syntax:
+
+```go-html-template
+{{ with .Site.GetPage "/auctions" }}
+ {{ .IsAncestor . }} → true
+{{ end }}
+```
+
+The result would be wrong when rendering the "auction-1" page because we are comparing the section page to itself.
+
+{{% note %}}
+Use the `$` to get the context passed into the template.
+{{% /note %}}
+
+```go-html-template
+{{ with .Site.GetPage "/auctions" }}
+ {{ $.IsAncestor . }} → true
+{{ end }}
+```
+
+{{% note %}}
+Gaining a thorough understanding of context is critical for anyone writing template code.
+{{% /note %}}
+
+[context]: /getting-started/glossary/#context
+[`with`]: /functions/go-template/with
+[`else`]: /functions/go-template/else