diff --git a/src/main/java/org/datasurvey/repository/CategoriaRepository.java b/src/main/java/org/datasurvey/repository/CategoriaRepository.java
index 66368c1..6a4897c 100644
--- a/src/main/java/org/datasurvey/repository/CategoriaRepository.java
+++ b/src/main/java/org/datasurvey/repository/CategoriaRepository.java
@@ -1,7 +1,8 @@
 package org.datasurvey.repository;
 
 import org.datasurvey.domain.Categoria;
-import org.springframework.data.jpa.repository.*;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
 import org.springframework.stereotype.Repository;
 
 /**
diff --git a/src/main/webapp/app/entities/categoria/categoria.module.ts b/src/main/webapp/app/entities/categoria/categoria.module.ts
index 96383a6..59f2dd3 100644
--- a/src/main/webapp/app/entities/categoria/categoria.module.ts
+++ b/src/main/webapp/app/entities/categoria/categoria.module.ts
@@ -1,14 +1,13 @@
 import { NgModule } from '@angular/core';
 import { SharedModule } from 'app/shared/shared.module';
 import { CategoriaComponent } from './list/categoria.component';
-import { CategoriaDetailComponent } from './detail/categoria-detail.component';
 import { CategoriaUpdateComponent } from './update/categoria-update.component';
 import { CategoriaDeleteDialogComponent } from './delete/categoria-delete-dialog.component';
 import { CategoriaRoutingModule } from './route/categoria-routing.module';
 
 @NgModule({
   imports: [SharedModule, CategoriaRoutingModule],
-  declarations: [CategoriaComponent, CategoriaDetailComponent, CategoriaUpdateComponent, CategoriaDeleteDialogComponent],
+  declarations: [CategoriaComponent, CategoriaUpdateComponent, CategoriaDeleteDialogComponent],
   entryComponents: [CategoriaDeleteDialogComponent],
 })
 export class CategoriaModule {}
diff --git a/src/main/webapp/app/entities/categoria/delete/categoria-delete-dialog.component.html b/src/main/webapp/app/entities/categoria/delete/categoria-delete-dialog.component.html
index 3fae047..0289904 100644
--- a/src/main/webapp/app/entities/categoria/delete/categoria-delete-dialog.component.html
+++ b/src/main/webapp/app/entities/categoria/delete/categoria-delete-dialog.component.html
@@ -1,4 +1,4 @@
-<form class="ds-form" *ngIf="categoria" name="deleteForm" (ngSubmit)="confirmDelete(categoria.id!)">
+<form class="ds-form" *ngIf="categoria" name="deleteForm" (ngSubmit)="confirmDelete(categoria!)">
   <div class="modal-header">
     <h4 class="modal-title" data-cy="categoriaDeleteDialogHeading" jhiTranslate="entity.delete.title">Confirm delete operation</h4>
 
@@ -9,7 +9,7 @@
     <jhi-alert-error></jhi-alert-error>
 
     <p id="jhi-delete-categoria-heading" jhiTranslate="dataSurveyApp.categoria.delete.question" [translateValues]="{ id: categoria.id }">
-      Are you sure you want to delete this Categoria?
+      Are you sure you want to delete this category?
     </p>
   </div>
 
diff --git a/src/main/webapp/app/entities/categoria/delete/categoria-delete-dialog.component.spec.ts b/src/main/webapp/app/entities/categoria/delete/categoria-delete-dialog.component.spec.ts
deleted file mode 100644
index 8511caf..0000000
--- a/src/main/webapp/app/entities/categoria/delete/categoria-delete-dialog.component.spec.ts
+++ /dev/null
@@ -1,65 +0,0 @@
-jest.mock('@ng-bootstrap/ng-bootstrap');
-
-import { ComponentFixture, TestBed, inject, fakeAsync, tick } from '@angular/core/testing';
-import { HttpResponse } from '@angular/common/http';
-import { HttpClientTestingModule } from '@angular/common/http/testing';
-import { of } from 'rxjs';
-import { NgbActiveModal } from '@ng-bootstrap/ng-bootstrap';
-
-import { CategoriaService } from '../service/categoria.service';
-
-import { CategoriaDeleteDialogComponent } from './categoria-delete-dialog.component';
-
-describe('Component Tests', () => {
-  describe('Categoria Management Delete Component', () => {
-    let comp: CategoriaDeleteDialogComponent;
-    let fixture: ComponentFixture<CategoriaDeleteDialogComponent>;
-    let service: CategoriaService;
-    let mockActiveModal: NgbActiveModal;
-
-    beforeEach(() => {
-      TestBed.configureTestingModule({
-        imports: [HttpClientTestingModule],
-        declarations: [CategoriaDeleteDialogComponent],
-        providers: [NgbActiveModal],
-      })
-        .overrideTemplate(CategoriaDeleteDialogComponent, '')
-        .compileComponents();
-      fixture = TestBed.createComponent(CategoriaDeleteDialogComponent);
-      comp = fixture.componentInstance;
-      service = TestBed.inject(CategoriaService);
-      mockActiveModal = TestBed.inject(NgbActiveModal);
-    });
-
-    describe('confirmDelete', () => {
-      it('Should call delete service on confirmDelete', inject(
-        [],
-        fakeAsync(() => {
-          // GIVEN
-          jest.spyOn(service, 'delete').mockReturnValue(of(new HttpResponse({})));
-
-          // WHEN
-          comp.confirmDelete(123);
-          tick();
-
-          // THEN
-          expect(service.delete).toHaveBeenCalledWith(123);
-          expect(mockActiveModal.close).toHaveBeenCalledWith('deleted');
-        })
-      ));
-
-      it('Should not call delete service on clear', () => {
-        // GIVEN
-        jest.spyOn(service, 'delete');
-
-        // WHEN
-        comp.cancel();
-
-        // THEN
-        expect(service.delete).not.toHaveBeenCalled();
-        expect(mockActiveModal.close).not.toHaveBeenCalled();
-        expect(mockActiveModal.dismiss).toHaveBeenCalled();
-      });
-    });
-  });
-});
diff --git a/src/main/webapp/app/entities/categoria/delete/categoria-delete-dialog.component.ts b/src/main/webapp/app/entities/categoria/delete/categoria-delete-dialog.component.ts
index d6edc6a..14225df 100644
--- a/src/main/webapp/app/entities/categoria/delete/categoria-delete-dialog.component.ts
+++ b/src/main/webapp/app/entities/categoria/delete/categoria-delete-dialog.component.ts
@@ -1,7 +1,10 @@
 import { Component } from '@angular/core';
 import { NgbActiveModal } from '@ng-bootstrap/ng-bootstrap';
+import { IEncuesta } from 'app/entities/encuesta/encuesta.model';
+import { EncuestaService } from 'app/entities/encuesta/service/encuesta.service';
+import { EstadoCategoria } from 'app/entities/enumerations/estado-categoria.model';
 
-import { ICategoria } from '../categoria.model';
+import { Categoria, ICategoria } from '../categoria.model';
 import { CategoriaService } from '../service/categoria.service';
 
 @Component({
@@ -9,16 +12,52 @@ import { CategoriaService } from '../service/categoria.service';
 })
 export class CategoriaDeleteDialogComponent {
   categoria?: ICategoria;
+  encuestas?: IEncuesta[];
+  encuestasFiltradas?: IEncuesta[];
 
-  constructor(protected categoriaService: CategoriaService, protected activeModal: NgbActiveModal) {}
+  constructor(
+    protected categoriaService: CategoriaService,
+    protected activeModal: NgbActiveModal,
+    protected encuestaService: EncuestaService
+  ) {}
 
   cancel(): void {
     this.activeModal.dismiss();
   }
 
-  confirmDelete(id: number): void {
-    this.categoriaService.delete(id).subscribe(() => {
+  confirmDelete(categoria: ICategoria): void {
+    this.ensureNulaExists();
+    const categoriaNula = new Categoria(0, 'Otra', EstadoCategoria.ACTIVE);
+    this.getEncuestas(categoria);
+    if (this.encuestas) {
+      this.encuestas!.forEach(encuesta => {
+        encuesta.categoria = categoriaNula;
+        this.encuestaService.update(encuesta);
+      });
+    }
+    categoria.estado = EstadoCategoria.INACTIVE;
+    this.categoriaService.update(categoria).subscribe(() => {
       this.activeModal.close('deleted');
     });
   }
+  ensureNulaExists(): void {
+    const categoriaNula = new Categoria(0, 'Otra', EstadoCategoria.ACTIVE);
+    const categoria = this.categoriaService.find(0);
+    if (categoria) {
+      this.categoriaService.update(categoriaNula);
+    } else {
+      this.categoriaService.create(categoriaNula);
+    }
+  }
+
+  protected getEncuestas(categoria: ICategoria): void {
+    this.encuestaService.query().subscribe(res => {
+      this.encuestas = res.body ?? [];
+    });
+    if (this.encuestas) {
+      this.encuestasFiltradas = this.encuestas.filter(encuesta => {
+        encuesta.categoria!.id === categoria.id;
+      });
+    }
+  }
 }
diff --git a/src/main/webapp/app/entities/categoria/detail/categoria-detail.component.html b/src/main/webapp/app/entities/categoria/detail/categoria-detail.component.html
deleted file mode 100644
index 9531c6c..0000000
--- a/src/main/webapp/app/entities/categoria/detail/categoria-detail.component.html
+++ /dev/null
@@ -1,36 +0,0 @@
-<div class="row justify-content-center">
-  <div class="col-8">
-    <div *ngIf="categoria">
-      <h2 data-cy="categoriaDetailsHeading"><span jhiTranslate="dataSurveyApp.categoria.detail.title">Categoria</span></h2>
-
-      <hr />
-
-      <jhi-alert-error></jhi-alert-error>
-
-      <jhi-alert></jhi-alert>
-
-      <dl class="row-md jh-entity-details">
-        <dt><span jhiTranslate="global.field.id">ID</span></dt>
-        <dd>
-          <span>{{ categoria.id }}</span>
-        </dd>
-        <dt><span jhiTranslate="dataSurveyApp.categoria.nombre">Nombre</span></dt>
-        <dd>
-          <span>{{ categoria.nombre }}</span>
-        </dd>
-        <dt><span jhiTranslate="dataSurveyApp.categoria.estado">Estado</span></dt>
-        <dd>
-          <span jhiTranslate="{{ 'dataSurveyApp.EstadoCategoria.' + categoria.estado }}">{{ categoria.estado }}</span>
-        </dd>
-      </dl>
-
-      <button type="submit" (click)="previousState()" class="btn btn-ds btn-info" data-cy="entityDetailsBackButton">
-        <fa-icon icon="arrow-left"></fa-icon>&nbsp;<span jhiTranslate="entity.action.back">Back</span>
-      </button>
-
-      <button type="button" [routerLink]="['/categoria', categoria.id, 'edit']" class="btn btn-ds btn-ds-primary btn-primary">
-        <fa-icon icon="pencil-alt"></fa-icon>&nbsp;<span jhiTranslate="entity.action.edit">Edit</span>
-      </button>
-    </div>
-  </div>
-</div>
diff --git a/src/main/webapp/app/entities/categoria/detail/categoria-detail.component.spec.ts b/src/main/webapp/app/entities/categoria/detail/categoria-detail.component.spec.ts
deleted file mode 100644
index 506ac72..0000000
--- a/src/main/webapp/app/entities/categoria/detail/categoria-detail.component.spec.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-import { ComponentFixture, TestBed } from '@angular/core/testing';
-import { ActivatedRoute } from '@angular/router';
-import { of } from 'rxjs';
-
-import { CategoriaDetailComponent } from './categoria-detail.component';
-
-describe('Component Tests', () => {
-  describe('Categoria Management Detail Component', () => {
-    let comp: CategoriaDetailComponent;
-    let fixture: ComponentFixture<CategoriaDetailComponent>;
-
-    beforeEach(() => {
-      TestBed.configureTestingModule({
-        declarations: [CategoriaDetailComponent],
-        providers: [
-          {
-            provide: ActivatedRoute,
-            useValue: { data: of({ categoria: { id: 123 } }) },
-          },
-        ],
-      })
-        .overrideTemplate(CategoriaDetailComponent, '')
-        .compileComponents();
-      fixture = TestBed.createComponent(CategoriaDetailComponent);
-      comp = fixture.componentInstance;
-    });
-
-    describe('OnInit', () => {
-      it('Should load categoria on init', () => {
-        // WHEN
-        comp.ngOnInit();
-
-        // THEN
-        expect(comp.categoria).toEqual(expect.objectContaining({ id: 123 }));
-      });
-    });
-  });
-});
diff --git a/src/main/webapp/app/entities/categoria/detail/categoria-detail.component.ts b/src/main/webapp/app/entities/categoria/detail/categoria-detail.component.ts
deleted file mode 100644
index 36ecdcf..0000000
--- a/src/main/webapp/app/entities/categoria/detail/categoria-detail.component.ts
+++ /dev/null
@@ -1,24 +0,0 @@
-import { Component, OnInit } from '@angular/core';
-import { ActivatedRoute } from '@angular/router';
-
-import { ICategoria } from '../categoria.model';
-
-@Component({
-  selector: 'jhi-categoria-detail',
-  templateUrl: './categoria-detail.component.html',
-})
-export class CategoriaDetailComponent implements OnInit {
-  categoria: ICategoria | null = null;
-
-  constructor(protected activatedRoute: ActivatedRoute) {}
-
-  ngOnInit(): void {
-    this.activatedRoute.data.subscribe(({ categoria }) => {
-      this.categoria = categoria;
-    });
-  }
-
-  previousState(): void {
-    window.history.back();
-  }
-}
diff --git a/src/main/webapp/app/entities/categoria/list/categoria.component.ts b/src/main/webapp/app/entities/categoria/list/categoria.component.ts
index d0a9206..31ddcff 100644
--- a/src/main/webapp/app/entities/categoria/list/categoria.component.ts
+++ b/src/main/webapp/app/entities/categoria/list/categoria.component.ts
@@ -38,7 +38,7 @@ export class CategoriaComponent implements OnInit {
     this.loadAll();
   }
 
-  trackId(index: number, item: ICategoria): number {
+  trackId(_index: number, item: ICategoria): number {
     return item.id!;
   }
 
diff --git a/src/main/webapp/app/entities/categoria/route/categoria-routing.module.ts b/src/main/webapp/app/entities/categoria/route/categoria-routing.module.ts
index d48d560..95acd27 100644
--- a/src/main/webapp/app/entities/categoria/route/categoria-routing.module.ts
+++ b/src/main/webapp/app/entities/categoria/route/categoria-routing.module.ts
@@ -3,7 +3,6 @@ import { RouterModule, Routes } from '@angular/router';
 
 import { UserRouteAccessService } from 'app/core/auth/user-route-access.service';
 import { CategoriaComponent } from '../list/categoria.component';
-import { CategoriaDetailComponent } from '../detail/categoria-detail.component';
 import { CategoriaUpdateComponent } from '../update/categoria-update.component';
 import { CategoriaRoutingResolveService } from './categoria-routing-resolve.service';
 
@@ -13,14 +12,6 @@ const categoriaRoute: Routes = [
     component: CategoriaComponent,
     canActivate: [UserRouteAccessService],
   },
-  {
-    path: ':id/view',
-    component: CategoriaDetailComponent,
-    resolve: {
-      categoria: CategoriaRoutingResolveService,
-    },
-    canActivate: [UserRouteAccessService],
-  },
   {
     path: 'new',
     component: CategoriaUpdateComponent,
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 29f8252..e1dd398 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
@@ -64,7 +64,7 @@ export class CategoriaUpdateComponent implements OnInit {
 
   protected categoryExists(categoria: ICategoria): boolean {
     this.loadAll();
-    var condicion = this.categorias!.some(cat => cat.nombre!.toLowerCase() === categoria.nombre!.toLowerCase());
+    var condicion = this.categorias!.some(cat => cat.nombre!.toLowerCase() === categoria.nombre!.toLowerCase() && cat.id !== categoria.id);
     return condicion;
   }