Generate some data with custom template function

[maximargo]

Hi! When I try to run the following code I get this error: "template: CodeRun:1: function "title" not defined". What I'm missing?

package main

import (
    "fmt"
    "strings"
    "text/template"

    "github.com/brianvoe/gofakeit/v6"
)

func main() {
    f := gofakeit.New(11)
    s := `{{printf "%q" . | title}}`

    funcMap := template.FuncMap{
        "title": strings.Title,
    }

    r, err := f.Template(s, &gofakeit.TemplateOptions{Funcs: funcMap, Data: "the go programming language"})
    if err != nil {
        fmt.Println(err)
    }
    fmt.Println(r)
}

[brianvoe]

hmmm interesting. The only thing I can think of is the pipe call.

@Mrpye Any idea on this one?

[Mrpye]

Found two issues

First, the string needs to be

s := `{{printf "%q" . | title}}`

to

s := `{{printf "%q" (title .Data)}}`

customer data is put in the data model and with nested functions, you need to wrap in ( )

The second issue is with the code, the user functions are not getting added to the function map. looks like this got removed at some point so will need adding back in

func templateFuncMap(r *rand.Rand, fm *template.FuncMap) *template.FuncMap {
...

        // Fix merge the user function maps with the template function map
    for k, v := range *fm {
        funcMap[k] = v
    }

    return &funcMap
}

[brianvoe]

Fixed v6.26.4