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Last active October 17, 2018 15:55
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import { OnInit } from '@angular/core';
import { FormArray, FormBuilder, FormControl, FormGroup, Validators } from '@angular/forms';
export interface CommonAddress {
id: number;
name: string;
export const FORM_PARAMS = {
supervisors: 'supervisors',
export class RecruitmentEditComponent implements OnInit {
public recruitmentForm: FormGroup;
constructor(private fb: FormBuilder) {}
ngOnInit() {
this.recruitmentForm ={
supervisors: this.fb.array([]),
get supervisors(): FormArray {
return this.recruitmentForm.get(FORM_PARAMS.supervisors) as FormArray;
findBy<C, K extends keyof C>(collection: C[], key: K, value: C[K]): boolean {
return collection.some((item) => item[key] === value);
selectSupervisor(item: any) {
const defined = this.findBy(this.supervisors.getRawValue(), 'id',;
if (!defined) {
this.supervisors.push(new FormControl({
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