diff --git a/src/main/webapp/app/entities/categoria/update/categoria-update.component.ts b/src/main/webapp/app/entities/categoria/update/categoria-update.component.ts
index b5d24ae..45f8a09 100644
--- a/src/main/webapp/app/entities/categoria/update/categoria-update.component.ts
+++ b/src/main/webapp/app/entities/categoria/update/categoria-update.component.ts
@@ -14,6 +14,7 @@ import { CategoriaService } from '../service/categoria.service';
 })
 export class CategoriaUpdateComponent implements OnInit {
   isSaving = false;
+  public categorias?: ICategoria[];
 
   editForm = this.fb.group({
     id: [],
@@ -21,12 +22,22 @@ export class CategoriaUpdateComponent implements OnInit {
     estado: [null, [Validators.required]],
   });
 
-  constructor(protected categoriaService: CategoriaService, protected activatedRoute: ActivatedRoute, protected fb: FormBuilder) {}
+  constructor(protected categoriaService: CategoriaService, protected activatedRoute: ActivatedRoute, protected fb: FormBuilder) {
+    this.categorias = [];
+    this.loadAll();
+  }
 
   ngOnInit(): void {
     this.activatedRoute.data.subscribe(({ categoria }) => {
       this.updateForm(categoria);
     });
+    this.loadAll();
+  }
+
+  loadAll(): void {
+    this.categoriaService.query().subscribe(res => {
+      this.categorias = res.body ?? [];
+    });
   }
 
   previousState(): void {
@@ -36,13 +47,25 @@ export class CategoriaUpdateComponent implements OnInit {
   save(): void {
     this.isSaving = true;
     const categoria = this.createFromForm();
-    if (categoria.id !== undefined) {
-      this.subscribeToSaveResponse(this.categoriaService.update(categoria));
+    const condicion = this.categoryExists(categoria);
+    if (!condicion) {
+      if (categoria.id !== undefined) {
+        this.subscribeToSaveResponse(this.categoriaService.update(categoria));
+      } else {
+        this.subscribeToSaveResponse(this.categoriaService.create(categoria));
+      }
     } else {
-      this.subscribeToSaveResponse(this.categoriaService.create(categoria));
+      this.previousState();
     }
   }
 
+  protected categoryExists(categoria: ICategoria): boolean {
+    this.loadAll();
+    var condicion = this.categorias!.some(cat => cat.nombre === categoria.nombre);
+    debugger;
+    return condicion;
+  }
+
   protected subscribeToSaveResponse(result: Observable<HttpResponse<ICategoria>>): void {
     result.pipe(finalize(() => this.onSaveFinalize())).subscribe(
       () => this.onSaveSuccess(),