bugfix: it was not possible to create documents with customers not havin a tax ID. But the customer tax id should not be required! …altered some code…

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

core/src/main/java/de/srsoftware/umbrella/core/model/Customer.java

@@ -1,16 +1,14 @@
 /* © SRSoftware 2025 */
 package de.srsoftware.umbrella.core.model;
 
+import static de.srsoftware.tools.Optionals.emptyIfNull;
 import static de.srsoftware.umbrella.core.Constants.*;
 import static de.srsoftware.umbrella.core.Field.*;
 import static de.srsoftware.umbrella.core.exceptions.UmbrellaException.missingFieldException;
 
 import de.srsoftware.tools.Mappable;
 import de.srsoftware.umbrella.core.exceptions.UmbrellaException;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Objects;
-import java.util.Set;
+import java.util.*;
 import org.json.JSONObject;
 
 public final class Customer implements Mappable {
@@ -73,7 +71,7 @@ public final class Customer implements Mappable {
 		if (!json.has(ID) || !(json.get(ID) instanceof String id)) throw missingFieldException(ID);
 		if (!json.has(NAME) || !(json.get(NAME) instanceof String name)) throw missingFieldException(NAME);
 		if (!json.has(EMAIL) || !(json.get(EMAIL) instanceof String email)) throw missingFieldException(EMAIL);
-		if (!json.has(TAX_ID) || !(json.get(TAX_ID) instanceof String taxId)) throw missingFieldException(TAX_ID);
+		var taxId = json.has(TAX_ID) && json.get(TAX_ID) instanceof String tid ? tid : null;
 		var lang = json.has(LANGUAGE) && json.get(LANGUAGE) instanceof String l ? l : FALLBACK_LANG;
 		return new Customer(id,name,email,taxId,lang);
 	}
@@ -104,11 +102,11 @@ public final class Customer implements Mappable {
 
 	@Override
 	public Map<String, Object> toMap() {
-		return Map.of(
-				"id", id,
-				"name", name,
-				"email", email,
-				"tax_id", taxNumber
-		);
+		var map = new HashMap<String,Object>();
+		map.put("id", id);
+		map.put("name", name);
+		map.put("email", email);
+		map.put("tax_id", emptyIfNull(taxNumber));
+		return map;
 	}
 }

frontend/src/Components/ContactSelector.svelte

@@ -26,6 +26,7 @@
                 contact.FN    = fn(contact.vcard);
                 contact.ORG   = org(contact.vcard);
                 const extras  = contact.vcard.match(/^X-.*:.+/gm);
+                if (extras) {
                     for (let ex of extras){
                         ex = extra(ex);
                         switch (ex.name){
@@ -45,6 +46,7 @@
                                 console.log(ex);
                         }
                     }
+                }
                 delete contact.vcard;
                 console.log(contact);
                 return contact;