gofiber/template

How to use the method of pongo2 registerfilter?

Closed this issue · 3 comments

pianchi commented

`
import (
"github.com/flosch/pongo2"
)

pongo2.RegisterFilter("nl2br", Nl2brHtml)

func Nl2brHtml(in *pongo2.Value, param *pongo2.Value) (out *pongo2.Value, err *pongo2.Error) {
if !in.IsString() {
	s3 := " "
	return pongo2.AsValue(s3), nil
} else {
	s1 := in.String()
	s2 := strings.Replace(s1, "\n", "<br />", -1)
	return pongo2.AsValue(s2), nil
}

}`

{{"mytext" | nl2br }}
ReneWerner87 commented

Here an example for this

package main

import (
	"log"
	"strings"

	"github.com/gofiber/fiber/v2"
	"github.com/gofiber/template/django"
)

func Nl2brHtml(value interface{}) string {
	if str, ok := value.(string); ok {
		return strings.Replace(str, "\n", "<br />", -1)
	}
	return ""
}

func main() {
	// Create a new engine
	engine := django.New("./views", ".django")
	engine.AddFunc("nl2br", Nl2brHtml)

	// Pass the engine to the Views
	app := fiber.New(fiber.Config{Views: engine})

	app.Get("/", func(c *fiber.Ctx) error {
		// Render index
		return c.Render("index", fiber.Map{
			"Title": "Hello,\n\n World!",
		})
	})

	log.Fatal(app.Listen(":3000"))
}

views/index.django

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
</head>
<body>
    Title: {{ nl2br(Title) }}
</body>
</html>

Output:

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
</head>
<body>
   Title: Hello,<br /><br /> World!
</body>
</html>

Unfortunately it is not as intuitive as you would think, we will add an example

do you(@pianchi ) have any other questions? otherwise i would close the issue

ReneWerner87 commented

Since there is no further message, I assume that the issue is done and can be closed.

if you have any questions, please feel free to open the issue again