add udaddrtype so that you can create donation codes

cmd/qrbill-api/api.go

@@ -60,7 +60,7 @@ func qrchFromRequest(r *http.Request) *qrbill.QRCH {
 			Ccy: "CHF",
 		},
 		UltmtDbtr: qrbill.Address{
-			AdrTp:            qrbill.AddressTypeCombined,
+			AdrTp:            qrbill.AddressType(ifEmpty(r.Form, "udaddrtype", qrbill.AddressTypeCombined)),
 			Name:             ifEmpty(r.Form, "udname", "Michael Stapelberg"),
 			StrtNmOrAdrLine1: ifEmpty(r.Form, "udaddr1", "Stauffacherstr 42"),
 			BldgNbOrAdrLine2: ifEmpty(r.Form, "udaddr2", "8004 Zürich"),

cmd/qrbill-api/debughtml.go

@@ -136,6 +136,11 @@ th { text-align: left; }
   <td>{{ .Message }}</td>
 </tr>
 
+<tr>
+  <td>&udaddrtype=</td>
+  <td>{{ .Udaddrtype }}</td>
+</tr>
+
 </table>
 
 </div>
@@ -160,6 +165,7 @@ func debugHTML(w http.ResponseWriter, r *http.Request, prefix string, qrch *qrbi
 		Udpost     string
 		Udcity     string
 		Udcountry  string
+		Udaddrtype string
 
 		Message string
 
@@ -180,6 +186,7 @@ func debugHTML(w http.ResponseWriter, r *http.Request, prefix string, qrch *qrbi
 		Udpost:     r.FormValue("udpost"),
 		Udcity:     r.FormValue("udcity"),
 		Udcountry:  r.FormValue("udcountry"),
+		Udaddrtype: r.FormValue("udaddrtype"),
 
 		Message: r.FormValue("message"),