Resolve "Courseware: Abruf des Zertifikats, obwohl das für die Unit gar nicht aktiviert ist"

Closes #3548

Merge request studip/studip!2524

lib/classes/JsonApi/Schemas/Courseware/Unit.php

@@ -34,6 +34,7 @@ class Unit extends SchemaProvider
             'public' => (int) $resource['public'],
             'release-date' => $resource['release_date'] ? date('c', $resource['release_date']) : null,
             'withdraw-date' => $resource['withdraw_date'] ? date('c', $resource['withdraw_date']) : null,
+            'config' => json_decode($resource['config']),
             'mkdate'    => date('c', $resource['mkdate']),
             'chdate'    => date('c', $resource['chdate']),
         ];

resources/vue/components/courseware/unit/CoursewareUnitItem.vue

@@ -286,13 +286,14 @@ export default {
             createFeedback: 'feedback-elements/create',
             loadFeedbackElement: 'feedback-elements/loadById',
         }),
-        async checkCertificate() {
-            if (this.getStudipConfig('COURSEWARE_CERTIFICATES_ENABLE')) {
-                const response = await axios.get(STUDIP.URLHelper.getURL('jsonapi.php/v1/courseware-units/' +
-                    this.unit.id + '/certificate/' + STUDIP.USER_ID));
-                if (response.status === 200) {
-                    this.certificate = response.data;
-                }
+        checkCertificate() {
+            if (this.getStudipConfig('COURSEWARE_CERTIFICATES_ENABLE') && this.unit.attributes.config.certificate) {
+                axios.get(STUDIP.URLHelper.getURL('jsonapi.php/v1/courseware-units/' +
+                    this.unit.id + '/certificate/' + STUDIP.USER_ID))
+                    .then(response => {
+                        this.certificate = response.data;
+                    })
+                    .catch(error => {});
             }
         },
         executeDelete() {