fix: adjust model to remove references from things without references

Fixes #69

src/core/things/Person.ts

@@ -12,7 +12,7 @@
  * You should have received a copy of the GNU General Public License along with
  * this program. If not, see <https://www.gnu.org/licenses/>.
  */
-import {SCThing, SCThingMeta, SCThingType} from '../Thing';
+import {SCThing, SCThingMeta, SCThingType, SCThingWithoutReferences} from '../Thing';
 import {SCMetaTranslations, SCNationality} from '../types/i18n';
 import {SCISO8601Date} from '../types/Time';
 import {SCBuildingWithoutReferences} from './Building';
@@ -23,7 +23,8 @@ import {SCRoomWithoutReferences} from './Room';
 /**
  * A person without references
  */
-export interface SCPersonWithoutReferences extends SCThing {
+export interface SCPersonWithoutReferences
+  extends SCThingWithoutReferences {
   /**
    * Additional first names of the person.
    */
@@ -102,7 +103,8 @@ export interface SCPersonWithoutReferences extends SCThing {
  *
  * @validatable
  */
-export interface SCPerson extends SCPersonWithoutReferences {
+export interface SCPerson
+  extends SCPersonWithoutReferences, SCThing {
   /**
    * Organization the person works for
    */
@@ -129,29 +131,31 @@ export interface SCPerson extends SCPersonWithoutReferences {
 /**
  * Meta information about a person
  */
-export class SCPersonMeta extends SCThingMeta implements SCMetaTranslations<SCPerson> {
+export class SCPersonMeta
+  extends SCThingMeta
+  implements SCMetaTranslations<SCPerson> {
   /**
    * Translations of fields
    */
   fieldTranslations = {
     de: {
-      ... SCThingMeta.getInstance().fieldTranslations.de,
+      ...SCThingMeta.getInstance().fieldTranslations.de,
     },
     en: {
-      ... SCThingMeta.getInstance().fieldTranslations.en,
+      ...SCThingMeta.getInstance().fieldTranslations.en,
     },
   };
 
   /**
    * Translations of values of fields
    */
-  fieldValueTranslations  = {
+  fieldValueTranslations = {
     de: {
-      ... SCThingMeta.getInstance().fieldValueTranslations.de,
+      ...SCThingMeta.getInstance().fieldValueTranslations.de,
       type: 'Person',
     },
     en: {
-      ... SCThingMeta.getInstance().fieldValueTranslations.en,
+      ...SCThingMeta.getInstance().fieldValueTranslations.en,
       type: SCThingType.Person,
     },
   };