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50 lines
1.3 KiB
Markdown
50 lines
1.3 KiB
Markdown
---
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title: Parent
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description: Returns the parent shortcode context in nested shortcodes.
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categories: []
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keywords: []
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action:
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related: []
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returnType: hugolib.ShortcodeWithPage
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signatures: [SHORTCODE.Parent]
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---
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This is useful for inheritance of common shortcode parameters from the root.
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In this contrived example, the "greeting" shortcode is the parent, and the "now" shortcode is child.
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{{< code file=content/welcome.md lang=md >}}
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{{</* greeting dateFormat="Jan 2, 2006" */>}}
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Welcome. Today is {{</* now */>}}.
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{{</* /greeting */>}}
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{{< /code >}}
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{{< code file=layouts/shortcodes/greeting.html >}}
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<div class="greeting">
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{{ trim .Inner "\r\n" | .Page.RenderString }}
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</div>
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{{< /code >}}
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{{< code file=layouts/shortcodes/now.html >}}
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{{- $dateFormat := "January 2, 2006 15:04:05" }}
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{{- with .Params }}
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{{- with .dateFormat }}
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{{- $dateFormat = . }}
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{{- end }}
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{{- else }}
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{{- with .Parent.Params }}
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{{- with .dateFormat }}
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{{- $dateFormat = . }}
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{{- end }}
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{{- end }}
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{{- end }}
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{{- now | time.Format $dateFormat -}}
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{{< /code >}}
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The "now" shortcode formats the current time using:
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1. The `dateFormat` parameter passed to the "now" shortcode, if present
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2. The `dateFormat` parameter passed to the "greeting" shortcode, if present
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3. The default layout string defined at the top of the shortcode
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