Fix vanishing text bug on submission feedback

client/src/pages/studentSubmission.vue

@@ -112,6 +112,9 @@
             };
           },
           result({data: {studentSubmission}}) {
+            if (!studentSubmission.submissionFeedback) { // create something for the cache to find
+              this.create();
+            }
             this.studentSubmission = cloneDeep(studentSubmission); // we don't want to update the value when the server updates
           }
         };
@@ -152,6 +155,21 @@
         this.updateFeedbackText(feedbackText);
         this._save();
       },
+      create() {
+        this.$apollo.mutate({
+          mutation: UPDATE_FEEDBACK_WITH_TEXT_MUTATION,
+          variables: {
+            input: {
+              submissionFeedback: {
+                studentSubmission: this.studentSubmission.id,
+                text: '',
+                final: false
+              }
+            }
+          },
+          update: this.updateCache
+        });
+      },
       turnIn() {
         this.$apollo.mutate({
           mutation: UPDATE_FEEDBACK_WITH_TEXT_MUTATION,
@@ -195,12 +213,14 @@
             };
             const data = store.readQuery({query, variables});
 
-            data.studentSubmission.submissionFeedback = Object.assign({}, data.studentSubmission.submissionFeedback, {
-              id: updatedSubmissionFeedback.id,
-              final: updatedSubmissionFeedback.final
-            });
+            if (data) {
+              data.studentSubmission.submissionFeedback = Object.assign({}, data.studentSubmission.submissionFeedback, {
+                id: updatedSubmissionFeedback.id,
+                final: updatedSubmissionFeedback.final
+              });
 
-            store.writeQuery({query, variables, data});
+              store.writeQuery({query, variables, data});
+            }
           }
         } catch (e) {
           console.error(e);

server/assignments/admin.py

@@ -1,7 +1,7 @@
 from django.contrib import admin
 
 # Register your models here.
-from assignments.models import Assignment, StudentSubmission
+from assignments.models import Assignment, StudentSubmission, SubmissionFeedback
 
 
 @admin.register(Assignment)
@@ -13,3 +13,7 @@ class AssignmentAdmin(admin.ModelAdmin):
 class StudentSubmissionAdmin(admin.ModelAdmin):
     pass
 
+@admin.register(SubmissionFeedback)
+class SubmissionFeedbackAdmin(admin.ModelAdmin):
+    pass
+

server/assignments/models.py

@@ -46,3 +46,7 @@ class SubmissionFeedback(TimeStampedModel):
     student_submission = models.OneToOneField(StudentSubmission, on_delete=models.CASCADE, primary_key=True, related_name='submission_feedback')
     final = models.BooleanField(default=False)
 
+    def __str__(self):
+        return '{} - {}'.format(self.student_submission.student.full_name, self.text)
+
+