Signaling invocation error from shortcode

hsn10 · April 29, 2020, 11:07am

Is there way for shortcode to signal error if called with incorrect parameters?

bep · April 29, 2020, 11:55am

You can use errorf (fails build) or warnf (prints WARNING).

martignoni · April 29, 2020, 1:02pm

See example here:

martignoni/hugo-video/blob/7888f661be3451297e162a8d4e772e45067cb2b2/layouts/shortcodes/video.html#L48


    {{ end }}
    {{ if (in .MediaType.Suffixes "ogv") }}
      {{ $unsupportedfile = false }}
      {{ $video_ogg = . }}
    {{ end }}
  {{ end }}
{{ end }}


{{ if $filenotfound }}
  {{/* No file of given name was found, we stop here. */}}
  {{ errorf "No file with filename %q found." $video_src }}
{{ else if $unsupportedfile }}
  {{ errorf "No valid video file with filename %q found." $video_src }}
{{ else }}
<video controls preload="auto" width="{{ or (.Get "width") $width }}" {{ if eq (.Get "autoplay") "true" }}autoplay {{ end }}{{ if eq (.Get "loop") "true" }}loop {{ end }}{{ if eq (.Get "muted") "true" }}muted {{ end }}{{ with $poster }}poster="{{ .RelPermalink }}" {{ end }}class="html-video">
  {{ with $video_webm }}
    <source src="{{ .RelPermalink }}" type="video/webm" }}>
    {{ $video_dl = . }}
  {{ end }}
  {{ with $video_ogg }}
    <source src="{{ .RelPermalink }}" type="video/ogg" }}>

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Signaling invocation error from shortcode

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