give better success message for saving hosted workflow versions (#853)

* #2905 give better message on success for saving hosted workflow versions

src/app/workflow/workflow-file-editor/workflow-file-editor.component.ts

@@ -64,10 +64,14 @@ export class WorkflowFileEditorComponent extends FileEditing {
     if (!this.versions || this.versions.length === 0) {
       return true;
     }
-    const mostRecentId = this.versions.reduce((max, n) => Math.max(max, n.id), this.versions[0].id);
+    const mostRecentId = this.getIdOfNewestVersion(this.versions);
     return this._selectedVersion.id === mostRecentId;
   }
 
+  getIdOfNewestVersion(versions: Array<WorkflowVersion>): number {
+    return versions.reduce((max, n) => Math.max(max, n.id), this.versions[0].id);
+  }
+
   /**
    * Splits up the sourcefiles for the version into descriptor files and test parameter files
    */
@@ -107,7 +111,11 @@ export class WorkflowFileEditorComponent extends FileEditing {
           this.workflowsService.getWorkflow(editedWorkflow.id).subscribe(
             (newlyGottenWorkflow: Workflow) => {
               this.workflowService.setWorkflow(newlyGottenWorkflow);
-              this.alertService.detailedSuccess();
+              const mostRecentId = this.getIdOfNewestVersion(newlyGottenWorkflow.workflowVersions);
+              const updatedVersion = newlyGottenWorkflow.workflowVersions.find(v => v.id === mostRecentId);
+              this.alertService.detailedSuccess(
+                'Saved version ' + updatedVersion.name + ' of hosted workflow ' + newlyGottenWorkflow.repository
+              );
             },
             error => {
               this.alertService.detailedError(error);