Merge pull request #71 from mopemope/pluggable-renderer-example

Add Pluggable View Renderer Example
This commit is contained in:
Javier Provecho Fernandez 2015-01-04 01:38:27 +01:00
commit 869f114e27
2 changed files with 70 additions and 0 deletions

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package main
import (
"github.com/flosch/pongo2"
"github.com/gin-gonic/gin"
"net/http"
)
type pongoRender struct {
cache map[string]*pongo2.Template
}
func newPongoRender() *pongoRender {
return &pongoRender{map[string]*pongo2.Template{}}
}
func writeHeader(w http.ResponseWriter, code int, contentType string) {
if code >= 0 {
w.Header().Set("Content-Type", contentType)
w.WriteHeader(code)
}
}
func (p *pongoRender) Render(w http.ResponseWriter, code int, data ...interface{}) error {
file := data[0].(string)
ctx := data[1].(pongo2.Context)
var t *pongo2.Template
if tmpl, ok := p.cache[file]; ok {
t = tmpl
} else {
tmpl, err := pongo2.FromFile(file)
if err != nil {
return err
}
p.cache[file] = tmpl
t = tmpl
}
writeHeader(w, code, "text/html")
return t.ExecuteRW(w, ctx)
}
func main() {
r := gin.Default()
r.HTMLRender = newPongoRender()
r.GET("/index", func(c *gin.Context) {
name := c.Request.FormValue("name")
ctx := pongo2.Context{
"title": "Gin meets pongo2 !",
"name": name,
}
c.HTML(200, "index.html", ctx)
})
// Listen and server on 0.0.0.0:8080
r.Run(":8080")
}

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<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="utf-8">
<title>{{ title }}</title>
<meta name="keywords" content="">
<meta name="description" content="">
</head>
<body>
Hello {{ name }} !
</body>
</html>