polish

orders/error_handler.go

@@ -0,0 +1,23 @@
+package orders
+
+import (
+	"net/http"
+	"piekarnikgosipl/html"
+)
+
+func errorMessages(err error) []string {
+	if j, ok := err.(interface{ Unwrap() []error }); ok {
+		var out []string
+		for _, e := range j.Unwrap() {
+			out = append(out, e.Error())
+		}
+		return out
+	}
+	return []string{err.Error()}
+}
+
+func writeErrors(w http.ResponseWriter, r *http.Request, status int, msgs ...string) {
+	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	w.WriteHeader(status)
+	html.FormErrors(msgs).Render(r.Context(), w)
+}