hugo/docs/content/functions/lang.Merge.md
2018-03-16 10:10:01 +01:00

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Markdown

---
title: lang.Merge
description: "Merge missing translations from other languages."
godocref: ""
workson: []
date: 2018-03-16
categories: [functions]
keywords: [multilingual]
menu:
docs:
parent: "functions"
toc: false
signature: ["lang.Merge FROM TO"]
workson: []
hugoversion:
relatedfuncs: []
deprecated: false
draft: false
aliases: []
comments:
---
As an example:
```bash
{{ $pages := .Site.RegularPages | lang.Merge $frSite.RegularPages | lang.Merge $enSite.RegularPages }}
```
Will "fill in the gaps" in the current site with, from left to right, content from the French site, and lastly the English.
A more practical example is to fill in the missing translations for the "minority languages" with content from the main language:
```bash
{{ $pages := .Site.RegularPages }}
{{ .Scratch.Set "pages" $pages }}
{{ $mainSite := .Sites.First }}
{{ if ne $mainSite .Site }}
{{ .Scratch.Set "pages" ($pages | lang.Merge $mainSite.RegularPages) }}
{{ end }}
{{ $pages := .Scratch.Get "pages" }}
```
{{% note %}}
Note that the slightly ugly `.Scratch` construct will not be needed once this is fixed: https://github.com/golang/go/issues/10608
{{% /note %}}