ui: fix add cluster form for vmware (#4841)

Filter null values else API returns error.

Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>

Author: shwstppr

ui/src/views/infra/ClusterAdd.vue

@@ -247,19 +247,30 @@ export default {
       }
       this.loading = true
       this.parentToggleLoading()
-      api('addCluster', {}, 'POST', {
+      var data = {
         zoneId: this.zoneId,
         hypervisor: this.hypervisor,
         clustertype: this.clustertype,
         podId: this.podId,
         clustername: this.clustername,
-        ovm3pool: this.ovm3pool,
-        ovm3cluster: this.ovm3cluster,
-        ovm3vip: this.ovm3vip,
-        username: this.username,
-        password: this.password,
         url: this.url
-      }).then(response => {
+      }
+      if (this.ovm3pool) {
+        data.ovm3pool = this.ovm3pool
+      }
+      if (this.ovm3cluster) {
+        data.ovm3cluster = this.ovm3cluster
+      }
+      if (this.ovm3vip) {
+        data.ovm3vip = this.ovm3vip
+      }
+      if (this.username) {
+        data.username = this.username
+      }
+      if (this.password) {
+        data.password = this.password
+      }
+      api('addCluster', {}, 'POST', data).then(response => {
         const cluster = response.addclusterresponse.cluster[0] || {}
         if (cluster.id && this.showDedicated) {
           this.dedicateCluster(cluster.id)