英文:
How can I write an if statement in resources.Get Hugo?
问题
我有以下代码：
{{ with resources.Get .Site.Params.image }}
<meta property="og:image" content="{{ .Permalink }}" />
{{ end }}
我在config.toml文件中获取了一个图像路径。然而，我现在想通过frontmatter数据来覆盖该文件... 类似于以下伪代码：
{{ if isset .Image }}
{{ $image := .Image }}
{{ else }}
{{ $image := .Site.Params.image }}
{{ end }}
{{ with resources.Get $image }}
...
我该如何编写这个语句？如果你有关于这些语句和语法的好教程，请告诉我！
英文:
I have the following code:
{{ with resources.Get .Site.Params.image }}
<meta property="og:image" content="{{ .Permalink }}" />
{{ end }}
I get a image path in the config.toml file. However I now want to be able to overwrite the file by frontmatter data... Something like this (in pseudo code):
{{ if isset .Image }}
{{ $image := .Image }}
{{ else }}
{{ $image := .Site.Params.image }}
{{ end }}
{{ with resources.Get $image }}
...
How can I write this statement? Also if you have good tutorials on these statements and syntax let me know!
答案1
得分: 2
使用or函数：
{{ with resources.Get (or .Params.thumbnailImage .Site.Params.ogImage) }}
<meta property="og:image" content="{{ .Permalink }}" />
{{ end }}
英文:
Use the or function:
{{ with resources.Get (or .Params.thumbnailImage .Site.Params.ogImage) }}
<meta property="og:image" content="{{ .Permalink }}" />
{{ end }}
答案2
得分: 0
这是我的解决方案：
{{ $ogImage := "" }}
{{ if .Params.thumbnailImage }}
{{ $ogImage = .Params.thumbnailImage }}
{{ else }}
{{ $ogImage = .Site.Params.ogImage }}
{{ end }}
{{ $ogImageRender := resources.Get $ogImage }}
{{ with $ogImageRender }}
<meta property="og:image" content="{{ .Permalink }}" />
{{ end }}
:=定义变量并设置初始值=将变量设置为另一个值
英文:
EDIT: I updated to @brendan solution.
This is my solution:
{{ $ogImage := "" }}
{{ if .Params.thumbnailImage }}
{{ $ogImage = .Params.thumbnailImage }}
{{ else }}
{{ $ogImage = .Site.Params.ogImage }}
{{ end }}
{{ $ogImageRender := resources.Get $ogImage }}
{{ with $ogImageRender }}
<meta property="og:image" content="{{ .Permalink }}" />
{{ end }}
:=defines variables and set initial value=set variables to another value
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