Patch substitutions directly after change

aleksis/apps/chronos/frontend/components/amendLesson.graphql

@@ -87,6 +87,7 @@ mutation createOrUpdateSubstitutions($input: [SubstitutionInputType]!) {
   createOrUpdateSubstitutions(input: $input) {
     items: substitutions {
       id
+      oldId
       subject {
         id
         shortName
@@ -163,6 +164,7 @@ query amendedLessonsFromAbsences(
     dateEnd: $dateEnd
   ) {
     id
+    oldId
     subject {
       id
       shortName

aleksis/apps/chronos/frontend/components/substitutions/SubstitutionCard.vue

@@ -118,6 +118,28 @@ export default {
     },
   },
   methods: {
+    handleUpdateAfterCreateOrPatch(itemId) {
+      return (cached, incoming) => {
+        for (const object of incoming) {
+          console.log("summary: handleUpdateAfterCreateOrPatch", object);
+          // Replace the current substitution
+          const index = cached.findIndex(
+            (o) => o[itemId] === this.substitution.id,
+          );
+          // merged with the incoming partial substitution
+          // if creation of proper substitution from dummy one, set ID of substitution currently being edited as oldID so that key in overview doesn't change
+          cached[index] = {
+            ...this.substitution,
+            ...object,
+            oldId:
+              this.substitution.id !== object.id
+                ? this.substitution.id
+                : this.substitution.oldId,
+          };
+        }
+        return cached;
+      };
+    },
     getTeacherStatus(teacher) {
       return this.teachersWithStatus.find((t) => t.id === teacher.id)?.status;
     },

aleksis/apps/chronos/frontend/components/substitutions/SubstitutionStatus.vue

@@ -68,7 +68,7 @@ export default {
     },
   },
   watch: {
-    documentation: {
+    substitution: {
       handler() {
         this.updateStatus();
       },

aleksis/apps/chronos/schema/__init__.py

@@ -63,6 +63,7 @@ class LessonEventType(DjangoObjectType):
         }
 
     amends = graphene.Field(lambda: LessonEventType, required=False)
+    old_id = graphene.ID(required=False)
 
     @staticmethod
     def resolve_teachers(root: LessonEvent, info, **kwargs):