func GuestSign(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
http.Error(w, "POST request only", http.StatusMethodNotAllowed)
return
}
c := appengine.NewContext(r)
g := models.Greeting{
Content: r.FormValue("content"),
Date: time.Now(),
}
if u := user.Current(c); u != nil {
g.Author = u.String()
}
key := datastore.NewIncompleteKey(c, "Greeting", models.GuestBookKey(c))
_, err := datastore.Put(c, key, &g)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
http.Redirect(w, r, "/", http.StatusSeeOther)
}
