SciGaPgh-79: Enable user tooltip not to fetch the same user more than once

Author: dinukadesilva

src/components/blocks/block-tooltip-user.vue

@@ -12,9 +12,12 @@
 </template>
 
 <script>
+import Vue from 'vue'
 import custosStore from "airavata-custos-portal/src/lib/store";
 import {custosService} from "airavata-custos-portal/src/lib/store/util/custos.util";
 
+Vue.prototype.userFetchStatus = {};
+
 export default {
   name: "block-tooltip-user",
   store: custosStore,
@@ -42,9 +45,11 @@ export default {
     }
   },
   methods: {
-    refreshData() {
-      if (!this.user) {
-        this.$store.dispatch("user/fetchUsers", {clientId: custosService.clientId, username: this.username});
+    async refreshData() {
+      if (!this.user && !this.userFetchStatus[this.username]) {
+        this.userFetchStatus[this.username] = "FETCHING";
+        await this.$store.dispatch("user/fetchUsers", {clientId: custosService.clientId, username: this.username});
+        this.userFetchStatus[this.username] = "COMPLETED";
       }
     }
   },