Support proposal to add "else with" like "else if" feature in templates

will · May 11, 2023, 11:07pm

If you’d like to be able to write logic like this

{{ with $page.Resources.GetMatch $url }}
    {{ $result = . }}
{{ else with $page.Resources.Get $url }}
    {{ $result = . }}
{{ else with resources.GetMatch $url }}
    {{ $result = . }}
{{ else with resources.Get $url }}
    {{ $result = . }}
{{ else with resources.GetRemote $url }}
    {{ $result = . }}
{{ end }}

instead of like this

{{ with $page.Resources.GetMatch $url }}
    {{ $result = . }}
{{ else }}
    {{ with $page.Resources.Get $url }}
        {{ $result = . }}
    {{ else }}
        {{ with resources.GetMatch $url }}
            {{ $result = . }}
        {{ else }}
            {{ with resources.Get $url }}
                {{ $result = . }}
            {{ else }}
                {{ with resources.GetRemote $url }}
                    {{ $result = . }}
                {{ end }}
            {{ end }}
        {{ end }}
    {{ end }}
{{ end }}

then show your support here with an upvote or comment:

github.com/golang/go

proposal: text/template: add "else with" like "else if"

opened 05:27AM - 06 Jan 23 UTC

willfaught

Proposal

The `text/template` doc [says](https://pkg.go.dev/text/template): ``` {{if p…ipeline}} T1 {{else if pipeline}} T0 {{end}} To simplify the appearance of if-else chains, the else action of an if may include another if directly; the effect is exactly the same as writing {{if pipeline}} T1 {{else}}{{if pipeline}} T0 {{end}}{{end}} ``` However, no such "else with" counterpart exists: ``` {{with pipeline}} T1 {{else}} T0 {{end}} If the value of the pipeline is empty, dot is unaffected and T0 is executed; otherwise, dot is set to the value of the pipeline and T1 is executed. ``` Which would be very useful: ``` {{ with .foo.bar.baz }} {{ . }} {{ else with .foo.bar.bez }} {{ . }} {{ else with .foo.bar.biz }} {{ . }} {{ end }} ``` Currently, we must do the nesting that the else/if doc mentions: ``` {{ with .foo.bar.baz }} {{ . }} {{ else }} {{ with .foo.bar.bez }} {{ . }} {{ else }} {{ with .foo.bar.biz }} {{ . }} {{ end }} {{ end }} {{ end }} ``` This gets tiresome. Mixing the two would also be useful: ``` {{ if .foo.bar.baz }} {{ .quux }} {{ else with .foo.bar.bez }} {{ . }} {{ else if .foo.bar.biz }} {{ .boz }} {{ end }} ```

Thanks.

will · May 13, 2023, 8:35pm

Thanks for the support

will · May 19, 2023, 3:52am

It’s been added to the active proposals list!

It’s not too late to add your upvote or comment!

will · May 31, 2023, 11:48pm

This was approved today!

github.com/golang/go

text/template: add "else with" like "else if"

opened 05:27AM - 06 Jan 23 UTC

willfaught

Proposal Proposal-Accepted

The `text/template` doc [says](https://pkg.go.dev/text/template): ``` {{if p…ipeline}} T1 {{else if pipeline}} T0 {{end}} To simplify the appearance of if-else chains, the else action of an if may include another if directly; the effect is exactly the same as writing {{if pipeline}} T1 {{else}}{{if pipeline}} T0 {{end}}{{end}} ``` However, no such "else with" counterpart exists: ``` {{with pipeline}} T1 {{else}} T0 {{end}} If the value of the pipeline is empty, dot is unaffected and T0 is executed; otherwise, dot is set to the value of the pipeline and T1 is executed. ``` Which would be very useful: ``` {{ with .foo.bar.baz }} {{ . }} {{ else with .foo.bar.bez }} {{ . }} {{ else with .foo.bar.biz }} {{ . }} {{ end }} ``` Currently, we must do the nesting that the else/if doc mentions: ``` {{ with .foo.bar.baz }} {{ . }} {{ else }} {{ with .foo.bar.bez }} {{ . }} {{ else }} {{ with .foo.bar.biz }} {{ . }} {{ end }} {{ end }} {{ end }} ``` This gets tiresome. Mixing the two would also be useful: ``` {{ if .foo.bar.baz }} {{ .quux }} {{ else with .foo.bar.bez }} {{ . }} {{ else if .foo.bar.biz }} {{ .boz }} {{ end }} ```

system · June 2, 2023, 11:49pm

This topic was automatically closed 2 days after the last reply. New replies are no longer allowed.

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Support proposal to add "else with" like "else if" feature in templates

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