Fix profiles not administrators able to edit a group

Related to #385

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

js/src/mixins/group.ts

@@ -0,0 +1,49 @@
+import { PERSON_MEMBERSHIPS, CURRENT_ACTOR_CLIENT } from "@/graphql/actor";
+import { FETCH_GROUP } from "@/graphql/group";
+import { Group, IActor, IGroup, IPerson, MemberRole } from "@/types/actor";
+import { Component, Vue } from "vue-property-decorator";
+
+@Component({
+  apollo: {
+    group: {
+      query: FETCH_GROUP,
+      fetchPolicy: "cache-and-network",
+      variables() {
+        return {
+          name: this.$route.params.preferredUsername,
+        };
+      },
+      skip() {
+        return !this.$route.params.preferredUsername;
+      },
+    },
+    person: {
+      query: PERSON_MEMBERSHIPS,
+      fetchPolicy: "cache-and-network",
+      variables() {
+        return {
+          id: this.currentActor.id,
+        };
+      },
+      skip() {
+        return !this.currentActor || !this.currentActor.id;
+      },
+    },
+    currentActor: CURRENT_ACTOR_CLIENT,
+  },
+})
+export default class GroupMixin extends Vue {
+  group: IGroup = new Group();
+  currentActor!: IActor;
+
+  person!: IPerson;
+
+  get isCurrentActorAGroupAdmin(): boolean {
+    return (
+      this.person &&
+      this.person.memberships.elements.some(
+        ({ parent: { id }, role }) => id === this.group.id && role === MemberRole.ADMINISTRATOR
+      )
+    );
+  }
+}