Server Side form validation 3

internal/handlers/handlers.go

@@ -69,8 +69,16 @@ func (m *Repository) Majors(w http.ResponseWriter, r *http.Request) {
 
 // MakeReservation is the make reservation page handler
 func (m *Repository) MakeReservation(w http.ResponseWriter, r *http.Request) {
+    // For the first time render emptyReservation so that this object is
+    // filled with the info when sent back.
+    var emptyReservation models.Reservation
+    data := make(map[string]interface{})
+
+    data["reservation"] = emptyReservation
+
 	render.RenderTemplate(w, r, "make-reservation.page.tmpl", &models.TemplateData{
 		Form: forms.New(nil),
+        Data: data,
 	})
 }
 
@@ -91,7 +99,8 @@ func (m *Repository) PostMakeReservation(w http.ResponseWriter, r *http.Request)
 
 	form := forms.New(r.PostForm)
 
-	form.Has("first_name", r)
+	form.Required("first_name", "last_name", "email")
+    form.MinLength("first_name", 2, r)
 
 	if !form.Valid() {
 		data := make(map[string]interface{})