src/app/roles/form/create/create.form.component.ts

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
import {Component, OnDestroy, OnInit, ViewChild} from '@angular/core';
import {ActivatedRoute, Router} from '@angular/router';
import {Role} from '../../../services/identity/domain/role.model';
import * as fromRoles from '../../store';
import {Subscription} from 'rxjs/Subscription';
import {Error} from '../../../services/domain/error.model';
import {RolesStore} from '../../store/index';
import {CREATE, RESET_FORM} from '../../store/role.actions';

@Component({
  templateUrl: './create.form.component.html'
})
export class CreateRoleFormComponent implements OnInit, OnDestroy {

  private formStateSubscription: Subscription;

  role: Role = { identifier: '', permissions: []};

  @ViewChild('form') formComponent;

  constructor(private router: Router, private route: ActivatedRoute, private store: RolesStore) {}

  ngOnInit(): void {
    this.formStateSubscription = this.store.select(fromRoles.getRoleFormError)
      .filter((error: Error) => !!error)
      .subscribe((error: Error) => {
        const detailForm = this.formComponent.detailForm;
        const errors = detailForm.get('identifier').errors || {};
        errors['unique'] = true;
        detailForm.get('identifier').setErrors(errors);
      });
  }

  ngOnDestroy(): void {
    this.formStateSubscription.unsubscribe();

    this.store.dispatch({ type: RESET_FORM });
  }

  onSave(role: Role): void {
    this.store.dispatch({ type: CREATE, payload: {
      role,
      activatedRoute: this.route
    } });
  }

  onCancel(): void {
    this.navigateAway();
  }

  navigateAway(): void {
    this.router.navigate(['../'], { relativeTo: this.route });
  }
}