Templates func for book

bouquins/bouquins.go

@@ -3,9 +3,11 @@ package bouquins
 import (
 	"database/sql"
 	"encoding/json"
+	"github.com/c2h5oh/datasize"
 	"html/template"
 	"log"
 	"net/http"
+	"net/url"
 	"strconv"
 	"strings"
 )
@@ -180,6 +182,18 @@ func (app *Bouquins) render(res http.ResponseWriter, tpl string, model interface
 		log.Print(err)
 	}
 }
+func TemplatesFunc() *template.Template {
+	tpl := template.New("")
+	tpl.Funcs(template.FuncMap{
+		"humanSize": func(sz int64) string {
+			return datasize.ByteSize(sz).HumanReadable()
+		},
+		"bookLink": func(data *BookData, book *BookFull) string {
+			return "/images/" + url.QueryEscape(book.Path) + "/" + url.QueryEscape(data.Name) + "." + strings.ToLower(data.Format)
+		},
+	})
+	return tpl
+}
 
 func paramInt(name string, req *http.Request) int {
 	val := req.URL.Query().Get(name)

main.go

@@ -3,7 +3,6 @@ package main
 import (
 	"database/sql"
 	"encoding/json"
-	"html/template"
 	"log"
 	"net/http"
 	"os"
@@ -51,7 +50,8 @@ func initApp() *BouquinsConf {
 	if err != nil {
 		log.Fatalln(err)
 	}
-	tpl, err := template.ParseGlob("templates/*.html")
+
+	tpl, err := TemplatesFunc().ParseGlob("templates/*.html")
 	if err != nil {
 		log.Fatalln(err)
 	}

templates/book.html

@@ -16,10 +16,11 @@
       </div>
       {{ if gt (len .Data) 0 }}
       <div class="col-xs-12 col-md-3 text-right">
+        {{ $book := .BookFull }}
         {{ range .Data }}
-        <a :href="bookLink(book, data)" class="btn btn-success">
+        <a href="{{ bookLink . $book }}" class="btn btn-success">
           <span class="glyphicon glyphicon-download-alt"></span> Télécharger
-          {{ .Format }} ({{ .Size }})
+          {{ .Format }} ({{ humanSize .Size }})
         </a>
         {{ end }}
       </div>