Handle passing functions to templates?

[jonathanGB]

I know it's possible to pass helper functions to normal html/template, but is it possible with this wrapper? If not, it would be cool to have it.

Thanks!

[BenKnigge]

I'm also trying to figure out how to get this working. No matter what I do I end up getting an error that the function is not defined.

[Macilias]

My guess is that the randerer treats each comment without leading . as function. This really is an issue, since it interferes with 3rd party stuff including {{tobereplaced}} stuff like dropbox for example.
The only solution I could think of here would be to change the delimiter for mulitemplate, but the expample from gin-gonic: router.Delims("{[{", "}]}") seam not to have any effect :(

[nanom1t]

Any updates?

[sergolius]

There is two variants how to add Funcs:

• AddFromFilesFuncs;
• AddFromStringsFuncs.
  Lets use .../multitemplate/example/advanced/example.go:45 as base:

r.AddFromFiles(filepath.Base(include), files...)

AddFromFilesFuncs:

r.AddFromFilesFuncs(filepath.Base(include), template.FuncMap{}, files...)

AddFromStringsFuncs:

r.AddFromStringsFuncs("tmpl-name", template.FuncMap{}, `<script>alert(1);</script>`)

[asbjornu]

How does any of those methods make the registered functions available within the (HTML) templates, @sergolius?

[sergolius]

@asbjornu AddFromFilesFuncs, AddFromStringsFuncs uses Go's package html/template functionality of Template creation and extension.
AddFromStringsFuncs:

tmpl := template.New(name).Funcs(funcMap)

[asbjornu]

@sergolius, ah, I see. I managed to get this to work:

r := multitemplate.NewRenderer()
r.AddFromFilesFuncs("entry", template.FuncMap{
    "my_func": func() string {
        return "xyz"
    },
}, "views/base.html", "views/entry.html")

I am now able to use {{ my_func }} in entry.html, which outputs xyz. Thanks!