在模板之间传递数据[重复]

Question

This question already has an answer here:

• Calling a template with several pipeline parameters 9 answers

I have simple case, where a templates (text/templates) includes another like this

`index.html`

{{ template "image_row" . }}


`image_row.html`

{{ define "image_row" }}

   To stuff here

{{ end }}

Now I want to reuse the image row template. Let's say I would like to pass a simple number, so that the image_row template builds up rows according to this number

I'd like to have something like that (where 5 is the additional argument)

index.html

{{ template "image_row" . | 5 }}

How could I achieve that in this case?

</div>

Answer 1

I'm not sure whether there exists a builtin solution for passing multiple arguments to a template invocation but, in case there isn't one, you could define a function that merges its arguments and returns them as a single slice value, then you can register that function and use it in the template invocation.

Something like:

func args(vs ...interface{}) []interface{} { return vs }
t, err := template.New("t").Funcs(template.FuncMap{"args":args}).Parse...

Then, in your index.html, you would do this:

{{ template "image_row" args . 5 }}

And then inside your image_row template you can access the arguments with the builtin index function like this:

{{ define "image_row" }}

   To stuff here {{index . 0}} {{index . 1}}

{{ end }}

https://play.golang.org/p/gkdtvvJ1bb