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Pass input text value to function per click

I want to insert the value inserted into an input in the database using Angular as the frontend and php as the backend but I'm not able to insert the input value into the method along with the user.id.
The input is for the reason of moderation when clicking on disapprove it is necessary to pass the reason but it is not entering.
import { Component, OnInit, TemplateRef } from '#angular/core';
import { FormGroup } from '#angular/forms';
import { observerMixin } from '#rodrigowba/observer-component';
import { ResponseData, DefaultResponse } from '#rodrigowba/http-common';
import { BsModalRef, BsModalService } from 'ngx-bootstrap/modal';
import { ToastrService } from 'ngx-toastr';
import { Observable } from 'rxjs';
import { ActionPayload } from '~/ngrx';
import {
HotsiteUser,
HotsiteUsersFacade,
HotsiteUsersFormService,
RegistrationStatusTypes,
UpdateHotsiteUserRequest,
HotsitePointsPrebase,
} from '~/admin/users';
import {
updateHotsiteUser,
hotsiteUserUpdated,
hotsiteUserUpdateFailed,
hotsiteUserRegistrationModerated,
hotsiteUserModerateRegistrationFailed
} from '~/admin/users/state';
import { distinctUntilChanged, map, switchMap, tap } from 'rxjs/operators';
#Component({
templateUrl: './view.component.html',
})
export class ViewComponent extends observerMixin() implements OnInit {
user$: Observable<HotsiteUser>;
pointsPrebase$: Observable<HotsitePointsPrebase[]>;
customFields$: Observable<{
field: string,
value: string
}[]>;
registrationStatusTypes = RegistrationStatusTypes;
form: FormGroup;
modalRef: BsModalRef;
submiting = false;
constructor(
private hotsiteUsersFacade: HotsiteUsersFacade,
private hotsiteUsersFormService: HotsiteUsersFormService,
private modalService: BsModalService,
private toastr: ToastrService
) {
super();
this.form = this.hotsiteUsersFormService.updateForm();
}
ngOnInit() {
this.user$ = this.hotsiteUsersFacade.selectCurrentHotsiteUser();
this.customFields$ = this.user$.pipe(
map(user => Object.values(user.custom_fields)),
map(customFields => customFields.map(customField => {
let value = customField.value;
if (Array.isArray(value)) {
value = value.join(', ');
}
return {
field: customField.field,
value
};
}))
);
this.pointsPrebase$ = this.user$.pipe(
map(user => user.id),
distinctUntilChanged(),
tap(id => {
this.hotsiteUsersFacade.fetchHotsitePointsPrebase(id);
}),
switchMap(id => this.hotsiteUsersFacade.selectHotsitePointsPrebaseByHotsiteUser(id))
);
this.observe(this.user$).subscribe(user => {
this.form.patchValue(user);
});
this.observe(
this.hotsiteUsersFacade.ofType(updateHotsiteUser)
).subscribe(() => {
this.submiting = true;
});
this.observe(
this.hotsiteUsersFacade.ofType<ActionPayload<ResponseData<HotsiteUser>>>(
hotsiteUserUpdated,
hotsiteUserRegistrationModerated
)
).subscribe(action => {
const { message, data } = action.payload;
this.submiting = false;
this.toastr.success(message);
});
this.observe(
this.hotsiteUsersFacade.ofType<ActionPayload<DefaultResponse>>(
hotsiteUserUpdateFailed,
hotsiteUserModerateRegistrationFailed
)
).subscribe(action => {
const { message } = action.payload;
this.submiting = false;
this.toastr.error(message);
});
}
onSubmit(id: string, data: UpdateHotsiteUserRequest) {
this.hotsiteUsersFacade.updateHotsiteUser(id, data);
}
openModal(template: TemplateRef<any>, size = 'modal-md') {
this.modalRef = this.modalService.show(template, { class: size });
}
approveRegistration(id: string,reason: string) {
this.hotsiteUsersFacade.moderateRegistrationHotsiteUser(id, { approved: true,reason });
}
rejectRegistration(id: string,reason: string) {
this.hotsiteUsersFacade.moderateRegistrationHotsiteUser(id, { approved: false,reason });
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.7.5/angular.min.js"></script>
<form [formGroup]="form" (ngSubmit)="onSubmit(user.id, form.value)" >
<form [formGroup]="form" (ngSubmit)="onSubmit(user.id, form.value)" >
<div class="row mb-3">
<div class="col-12">
<div class="form-group">
<label>Name</label>
<input type="text" [value]="user.name" class="form-control" readonly />
</div>
</div>
<div class="col-12 col-lg-6">
<div class="form-group">
<label>E-mail</label>
<input type="text" [value]="user.email" class="form-control" readonly />
</div>
</div>
<div class="col-12 col-lg-6">
<div class="form-group">
<label>Document</label>
<input type="text" [value]="user.document" class="form-control" readonly />
</div>
</div>
<div class="col-12" *ngFor="let customField of customFields$ | async">
<div class="form-group">
<label>{{ customField.field }}</label>
<input type="text" [value]="customField.value" class="form-control" readonly />
</div>
</div>
<div class="col-auto">
<div class="form-group">
<mat-slide-toggle formControlName="admin" color="primary" ></mat-slide-toggle>
<label class="ml-2">Admin</label>
</div>
</div>
<div class="col-auto">
<div class="form-group">
<mat-slide-toggle formControlName="active" color="primary" ></mat-slide-toggle>
<label class="ml-2">Active</label>
</div>
</div>
</div>
<ng-container *ngIf="pointsPrebase$ | async as pointsPrebase">
<div class="row mb-3" *ngIf="pointsPrebase.length > 0">
<div class="col-12">
<h4 class="font-16 font-weight-bold">Points</h4>
</div>
<div class="col-12 col-lg-6">
<table class="table table-striped table-sm">
<thead>
<tr>
<th>Chave</th>
<th class="text-center">Points</th>
</tr>
</thead>
<tbody>
<tr *ngFor="let points of pointsPrebase">
<td>{{ points.value }}</td>
<td class="text-center">{{ points.points }}</td>
</tr>
</tbody>
</table>
</div>
</div>
</ng-container>
<div class="form-row">
<ng-container *ngIf="user.registration_status === registrationStatusTypes.AwaitingModeration">
<div class="col-auto">
<label>Reason</label>
<input type="text" name="reason" placeholder="Reason of moderation..." class="form-control"/>
</div>
<div class="col-auto">
<button
type="button"
class="btn btn-success"
(click)="approveRegistration(user.id,form.reason)"
>
<app-loading-label [loading]="submiting">Approved </app-loading-label>
</button>
</div>
<div class="col-auto">
<button
type="button"
class="btn btn-danger"
(click)="rejectRegistration(user.id,form.reason)"
>
<app-loading-label [loading]="submiting">Repproved </app-loading-label>
</button>
</div>
</ng-container>
<div class="col text-right">
<button
type="submit"
class="btn btn-orange"
[disabled]="form.invalid || submiting"
>
<app-loading-label [loading]="submiting">Salvar</app-loading-label>
</button>
</div>
</div>
</form>
Error:
Property 'reason' does not exist on type 'formGroup'

As user776686 suggested, there is a formControlName missing linked to "reason" field.
To get the field value in HTML you should access to the FormGroup controls:
(click)="approveRegistration(user.id, form.controls.reason.value)"
Also you can create a "get" property in TS code and then access to it in HTML:
get reason() {
return this.form.controls.reason.value;
}
(click)="approveRegistration(user.id, reason)"
BTW, a field can be accessed too through the "get" method of a FormGroup:
get reason() {
return this.form.get('reason').value;
}

It expects a control with the attribute formControlName="reason" which is not present here:
<input type="text" name="reason" placeholder="Reason of moderation..." class="form-control"/>
This might be a reason.
If that doesn't help, you my also want to look into the *ngIf condition here:
<ng-container *ngIf="user.registration_status === registrationStatusTypes.AwaitingModeration">

Chaining Tasks performed on NgOnInit and NgAfterViewInit

Guys I am seriously going nuts about handling Angular lifecycle hooks correctly. I am not sure where I am mistaking. I have tried to read a lot of things and is struggling with them from around a week now.
My Problem
I have quite a bit of server api calls and some business logic that I am applying during NgOnInIt(). But doing so I am sometimes running in to RegisterationComponent.html:82 ERROR TypeError: Cannot read property 'titleId' of undefined. And at other times I am struggling to initialize a wizard correctly.
I am now going to define you in detail what is it that I am facing:
ngOnInit()
ngOnInit() {
//First see if it is a redirect request:
this.route.queryParamMap
.pipe(
map(params => params.get('payment')),
filter(paramVal => paramVal != null),
filter(paramVal => paramVal == 'success'),
tap((paymentInd: string) => {
this.setOrderDetails();
}),
untilDestroyed(this)
).subscribe((successPayment: string) => {
//Update the transaction here
this.regService.updateTransaction(this.registrationTransactionDetails)
.pipe(
filter((regUpdate: RegistrationTransaction) => regUpdate != null),
tap((regUpdate: RegistrationTransaction) => {
//This is so that user sees the correct template.
this.showRegConfirmation = true;
this.showConfirmation = false;
this.wizard = new KTWizard(this.el.nativeElement, {
startStep: 2
});
this.initializeWizardEvents();
JsBarcode('#barcode', regUpdate.order.orderLine.barcode);
}),
untilDestroyed(this)
)
.subscribe((regUpdate: RegistrationTransaction) => {
//Update the user details
this._profileService.updateUser(this.userDetails.id, this.userDetails).subscribe();
});
});
//fresh transaction case
this.route.queryParamMap
.pipe(
map(params => params.get('payment')),
filter(param => param == null),
tap((paymentInd: string) => {
this.setOrderDetails();
//this is to make sure user sees the correct template even after refresh
this.showConfirmation = true;
this.showRegConfirmation = false;
}),
filter(id => this.registrationTransactionDetails.id == null),
untilDestroyed(this)
)
.subscribe((paymentInd: string) => {
this.regService
.createTransaction(this.registrationTransactionDetails)
.pipe(
filter(regCreated => regCreated.id != null),
tap((regCreated: RegistrationTransaction) => {
if(!this._utilities.isNullOrUndefined(regCreated.id)){
this.wizard = new KTWizard(this.el.nativeElement, {
startStep: 1
});
this.initializeWizardEvents();
this.regService
.getSessionDetails(regCreated.eventId, regCreated.order.id)
.pipe(
tap((response: SessionResponse) => {
//Just so that we can update the registration details with the gateway order id as well.
this.registrationTransactionDetails = JSON.parse(this.storage.getItem(Constants.RegistrationStorageKey));
this.registrationTransactionDetails.gatewayOrderId = response.gatewayOrderId;
this.storage.setItem(Constants.RegistrationStorageKey, JSON.stringify(this.registrationTransactionDetails));
}),
untilDestroyed(this)
)
.subscribe((response: SessionResponse) => {
console.log(response);
this.gatewayConfig.session = response.session;
this.gatewayConfig.callbacks = this.callback;
Checkout.configure(this.gatewayConfig);
});
}
}),
untilDestroyed(this)
)
.subscribe((regCreated: RegistrationTransaction) => {
this.registrationTransactionDetails = JSON.parse(this.storage.getItem(Constants.RegistrationStorageKey));
//Save all the details fo the registration created.
this.registrationTransactionDetails.id = regCreated.id;
this.registrationTransactionDetails.order.id = regCreated.order.id;
this.registrationTransactionDetails.order.orderLine.id = regCreated.order.orderLine.id;
this.storage.setItem(
Constants.RegistrationStorageKey,
JSON.stringify(this.registrationTransactionDetails)
);
});
});
this.regService
.getCommonValues()
.pipe(
filter(list => list != null),
tap((list: CommonLists) =>{
this.filteredCities = _.filter(list.cities, { countryCode: this.userDetails.countryCode });
}),
untilDestroyed(this)
)
.subscribe((lists: CommonLists) => {
this.countries = lists.countries;
this.titles = lists.titles;
this.genders = lists.genders;
this.cities = lists.cities;
this.jobFunctions = lists.jobFunctions;
this.jobTitles = lists.jobTitles;
});
}
ngAfterViewInit()
ngAfterViewInit(): void {
// Initialize form wizard
//let wizard;
if(this.showRegConfirmation && !this.showConfirmation)
{
this.wizard = new KTWizard(this.el.nativeElement, {
startStep: 3
});
}
else
{
this.wizard = new KTWizard(this.el.nativeElement, {
startStep: 2
});
}
// Validation before going to next page
this.wizard.on('beforeNext', wizardObj => {
// https://angular.io/guide/forms
// https://angular.io/guide/form-validation
// validate the form and use below function to stop the wizard's step
// wizardObj.stop();
this.onBeforeNext(wizardObj);
});
this.wizard.on('beforePrev', wizardObj => {
// https://angular.io/guide/forms
// https://angular.io/guide/form-validation
// validate the form and use below function to stop the wizard's step
// wizardObj.stop();
this.onBeforePrev(wizardObj);
});
// Change event
this.wizard.on('change', wizard => {
setTimeout(() => {
KTUtil.scrollTop();
}, 500);
});
}
Now this wizard has to be initialized in the ngAfterViewInit. I have tried to do it in the ngOnInit but it doesn't work. The events do not work.
Primarily the lines you all see in the queryParamsMap subscriptions are my attempt to achieve what I want to achieve. I want to start the wizard from a different step based on the state user land to the screen.
this.wizard = new KTWizard(this.el.nativeElement, {
startStep: 2
});
this.initializeWizardEvents();
Additionally you all can find this line:
this.setOrderDetails() <- it fetches the user details during the ngOnInit. It is run after the ngOnInit and hence I get some initialization errors during runtime undefined title error as pasted above. When data comes it fills the UI, but I don't quite understand how to get around with this error.
RegistrationComponent.html Portion throwing error
<!--begin: Form Wizard Step 2-->
<div class="kt-wizard-v3__content" data-ktwizard-type="step-content" data-ktwizard-state="current">
<div class="kt-form__section kt-form__section--first">
<!-- <ng-template #loggedIn> -->
<div class="kt-wizard-v3__form">
<div class="wizard-title-area">
<p class="para">
<span class="name">Hi {{ userDetails.firstName }}, </span>You have logged in using your social
account. Click here if this is not the correct information.
</p>
</div>
<div class="kt-separator kt-separator--border-2x separator-margin-top-0"></div>
<form #userForm="ngForm">
<div class="form-input-wrap">
<div class="row">
<div class="col-sm-2">
<div class="form-group">
<mat-form-field>
<mat-select
id="prefix"
name="prefix"
placeholder="prefix"
[(ngModel)]="userDetails.titleId"
name="userTitle"
id="userTitle"
required
>
<mat-option *ngFor="let title of titles" [value]="title.id">{{
title.description
}}</mat-option>
</mat-select>
</mat-form-field>
<!-- <div
*ngIf="userTitle.invalid && (userTitle.dirty || userTitle.touched)"
class="alert alert-danger"
>
<div *ngIf="userTitle.errors.required">
Please select a Title
</div>
</div> -->
</div>
</div>
<div class="col-sm-4">
<div class="form-group">
<mat-form-field>
<input
matInput
#input
maxlength="20"
placeholder="First Name"
required
[(ngModel)]="userDetails.firstName"
[ngModelOptions]="{ standalone: true }"
/>
</mat-form-field>
</div>
</div>
<div class="col-sm-6">
<div class="form-group">
<mat-form-field>
<input
matInput
#input
maxlength="20"
placeholder="Last Name"
required
[(ngModel)]="userDetails.lastName"
[ngModelOptions]="{ standalone: true }"
/>
</mat-form-field>
</div>
</div>
</div>
</div>
<div class="form-input-wrap">
<div class="row">
<div class="col-sm-6">
<div class="form-group">
<mat-form-field>
<input
matInput
type="email"
#input
maxlength="20"
placeholder="email"
required
[(ngModel)]="userDetails.email"
[ngModelOptions]="{ standalone: true }"
/>
</mat-form-field>
</div>
</div>
<div class="col-sm-6">
<div class="form-group">
<mat-form-field>
<mat-select
id="gender"
name="gender"
placeholder="gender"
[(ngModel)]="userDetails.genderId"
aria-required="true"
[ngModelOptions]="{ standalone: true }"
>
<mat-option *ngFor="let gender of genders" [value]="gender.id">{{
gender.alias
}}</mat-option>
</mat-select>
</mat-form-field>
</div>
</div>
</div>
</div>
<div class="form-input-wrap">
<div class="row">
<div class="col-sm-6">
<div class="form-group">
<mat-form-field>
<mat-label>Select your nationality</mat-label>
<mat-select
placeholder="nationality"
[(ngModel)]="userDetails.nationalityCode"
[ngModelOptions]="{ standalone: true }"
>
<mat-option *ngFor="let country of countries" [value]="country.code">{{
country.name
}}</mat-option>
</mat-select>
</mat-form-field>
</div>
</div>
<div class="col-sm-6">
<div class="form-group">
<mat-form-field>
<mat-label>Select the country of residence</mat-label>
<mat-select
placeholder="country"
[(ngModel)]="userDetails.countryCode"
[ngModelOptions]="{ standalone: true }"
(selectionChange)="onCountryChange()"
>
<mat-option *ngFor="let country of countries" [value]="country.code">{{
country.name
}}</mat-option>
</mat-select>
</mat-form-field>
</div>
</div>
</div>
</div>
<div class="form-input-wrap">
<div class="row">
<div class="col-sm-6">
<div class="form-group">
<mat-form-field>
<mat-label>Select a job function</mat-label>
<mat-select
matInput
id="userJobFunction"
name="userJobFunction"
placeholder="job function"
[(ngModel)]="userDetails.jobFunctionId"
required
#userJobFunction="ngModel"
>
<mat-option *ngFor="let function of jobFunctions" [value]="function.id">{{
function.name
}}</mat-option>
</mat-select>
<mat-error *ngIf="userJobFunction.hasError('required')">
Please select a job function.
</mat-error>
</mat-form-field>
</div>
</div>
<div class="col-sm-6">
<div class="form-group">
<mat-form-field>
<mat-label>Select a job title</mat-label>
<mat-select
matInput
id="userJobTitle"
name="userJobTitle"
placeholder="job title"
[(ngModel)]="userDetails.jobTitleId"
required
#userJobTitle="ngModel"
>
<mat-option *ngFor="let jobTitle of jobTitles" [value]="jobTitle.id">{{
jobTitle.name
}}</mat-option>
</mat-select>
<mat-error *ngIf="userJobTitle.hasError('required')">
Please select a job title.
</mat-error>
</mat-form-field>
</div>
</div>
</div>
</div>
<div class="form-input-wrap">
<div class="row">
<div class="col-sm-6">
<div class="form-group">
<mat-form-field>
<input
matInput
type="text"
#input
maxlength="20"
placeholder="phone"
required
[(ngModel)]="userDetails.mobile"
[ngModelOptions]="{ standalone: true }"
/>
</mat-form-field>
</div>
</div>
<div class="col-sm-6">
<div class="form-group">
<mat-form-field>
<mat-label>Select a city</mat-label>
<mat-select
matInput
id="userCity"
name="userCity"
placeholder="city"
[(ngModel)]="userDetails.city"
required
#userCity="ngModel"
>
<mat-option *ngFor="let city of filteredCities" [value]="city.id">
{{ city.name }}
</mat-option>
</mat-select>
<mat-error *ngIf="userCity.hasError('required')">
Please select a city.
</mat-error>
</mat-form-field>
</div>
</div>
</div>
</div>
<div class="form-input-wrap">
<div class="row">
<div class="col-sm-6">
<div class="form-group">
<mat-form-field>
<input matInput [matDatepicker]="userDOB" [max]="maxDate" id="userDOB" name="userDOB" placeholder="Date of Birth" [(ngModel)]="userDetails.userDOB"
[ngModelOptions]="{ standalone: true }">
<mat-datepicker-toggle matSuffix [for]="userDOB"></mat-datepicker-toggle>
<mat-datepicker #userDOB disabled="false"></mat-datepicker>
</mat-form-field>
</div>
</div>
<div class="col-sm-6">
<div class="form-group">
<mat-form-field>
<input
matInput
type="text"
#input
maxlength="20"
placeholder="company"
[(ngModel)]="registrationTransactionDetails.companyName"
[ngModelOptions]="{ standalone: true }"
/>
</mat-form-field>
</div>
</div>
</div>
</div>
</form>
</div>
<!-- </ng-template> -->
</div>
</div>
<!--end: Form Wizard Step 2-->
Any help will be appreciated. Thank you!

seens like a bad definition variable, in your template RegisterationComponent.htmlline 88, you should have something like variable.titleId, that variable in your .ts file should be define like this:
#Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css']
})
export class YourComponentName {
variable;
}
the problem is that when your component is loaded variable is undefined so you should define like an empty object variable: typing = {} so the html component will get and undefined intead a error, if you component is specting something different that undefined you sould define your variable like variable = {titleId: expectedValue}

set value in form array in angular 8

i have a edit form in angular 8 and use the form array in that .
i need when i enter that page it fill the form array with value but when i enter the page it not fill the form .
whats the problem ???
ngOnInit(): void {
this.courseExam = this.activeRoute.snapshot.data['exams']['exams']['records'];
this.questions = this.activeRoute.snapshot.data['question']['question']["result"];
this.questionsOld = this.activeRoute.snapshot.data['question']['question']["result"];
console.log(this.questions)
this.createForm();
}
createForm(): void {
this.editQuestionFG = new FormGroup({
title: new FormControl(this.questions.title, Validators.required),
courseExamId: new FormControl(this.questions.courseExamId, Validators.required),
courseOptions: this._formBuilder.array([])
});
this.setValue(this.questions.courseOptions);
}
createItem(): FormGroup {
return this._formBuilder.group({
optionTitle: new FormControl('', Validators.required),
isCorrect: new FormControl(false, Validators.required)
});
}
setValue(item: Options[]) {
for (let x of item) {
this.editQuestionFG.controls['courseOptions'].setValue({
isCorrect: x.isCorrect,
optionTitle: x.optionTitle
})
}
}
html :
<div class="answer col-lg-12 kt-margin-bottom-20-mobile">
<div formArrayName="courseOptions" class="row m-auto"
*ngFor="let project of editQuestionFG.get('courseOptions').controls; let i = index">
<ng-container [formGroupName]="i">
<div class="col-lg-1 kt-margin-bottom-20-mobile icon remove text-center">
<label (click)="deleteItem(i)"><i class="la la-trash"></i></label>
</div>
<div class="col-lg-8 kt-margin-bottom-20-mobile">
<mat-form-field class="mat-form-field-fluid" appearance="outline">
<mat-label>{{'GENERAL.TITLE' | translate}} *</mat-label>
<input matInput formControlName="optionTitle"
[placeholder]="'GENERAL.TITLE' | translate">
</mat-form-field>
</div>
<div class="col-lg-3 kt-margin-bottom-20-mobile icon">
<mat-radio-group name="radp" aria-label="Select an option"
formControlName="isCorrect">
<mat-radio-button value='true'>صحیح</mat-radio-button>
</mat-radio-group>
</div>
</ng-container>
</div>
<div class="add-Item">
<button (click)="AddItems()" mat-raised-button type="button"
color="accent">{{'COURSE_QUESTION.ADD_NEW_OPTION' |translate}}</button>
</div>
</div>
whats the problem ? how can i solve this problem ????

Try like this:
setValue(item: Options[]) {
const formArray = new FormArray([]);
for (let x of item) {
formArray.push(this._formBuilder.group({
isCorrect: x.isCorrect,
optionTitle: x.optionTitle
}));
}
this.editQuestionFG.setControl('courseOptions', formArray);
}

How to dynamically add validations to material forms in Angular (v6)?

I have a form whose field names and required validators will change based on the form type (content_type) selected. On selecting the form_type, I get a list of required_fields and optional_fields, accordingly, I need to add Validators.required, so i can disable the submit button if the form is not filled properly.
After adding logic, i get following errors:
this.form._updateTreeValidity is not a function
and
this.form.get is not a function
and the form ends up looking empty with the following errors. If i just keep fields without any formControlName or validations it looks perfectly fine.
Code
Sample form fields
formFields = {
required_fields: {
actual_content: "Content",
name: "Name",
contact: "Phone Number"
},
optional_fields: {
additional_content: "Additional card content",
website: "Website URL",
}
};
form.component.ts
formGroup: FormGroup;
ngOnInit() {
this.selectedType = 'text';
this.service.getFormFields(this.selectedType)
.subscribe((data: {required_fields, optional_fields }) => {
// create array of field names to display in template
this.fieldNames = Object.assign(data.required_fields, data.optional_fields);
// create dynamic formGroup, with proper validators
this.formGroup = this.createGroup(data);
console.log({FormGroup: this.formGroup});
});
}
createGroup(formFields): FormGroup {
const group: any = {};
// required fields
const reqFields = Object.keys(formFields.required_fields);
reqFields.forEach(field => {
group[field] = new FormControl(``, [Validators.required]);
});
// optional fields
const optFields = Object.keys(formFields.optional_fields);
optFields.forEach(field => {
group[field] = new FormControl(``);
});
return group;
}
// the dynamically generated formGroup might look like
// formGroup = new FormGroup({
// actual_content: new FormControl(``, [Validators.required]),
// name: new FormControl(``, [Validators.required]),
// contact: new FormControl(``, [Validators.required]),
// additional_content: new FormControl(),
// website: new FormControl(),
// })
form.component.html
<form novalidate class="mainForm" [style.fontSize.px]="15" [formGroup]="formGroup" #myForm="ngForm">
<div>
<h3 class="sHeading"> Select Form Type </h3>
<mat-form-field appearance="outline" class="formField">
<mat-select placeholder="Select Form Type" formControlName="content_type">
<mat-option
#formType
class="option"
*ngFor="let type of formTypes"
[value]="type.type"
(click)="updateFormType(formType.value)">
{{type.type}}
</mat-option>
</mat-select>
</mat-form-field>
</div>
<div>
<h3 class="sHeading"> {{fieldNames.name}} </h3>
<mat-form-field appearance="outline" class="formField">
<input matInput
placeholder="Name should have 3 characters min."
formControlName="name">
</mat-form-field>
</div>
<div>
<h3 class="sHeading"> {{fieldNames.content_url}} </h3>
<mat-form-field appearance="outline" class="formField">
<input matInput
placeholder="Provide Valid URL"
formControlName="content_url">
</mat-form-field>
</div>
<div>
<h3 class="sHeading"> {{fieldNames.actual_content}} </h3>
<mat-form-field appearance="outline" class="formField">
<textarea
matInput
placeholder="Describe the content"
rows=6
formControlName="actual_content"></textarea>
</mat-form-field>
</div>
<div>
<h3 class="sHeading"> {{fieldNames.additional_content}} </h3>
<mat-form-field appearance="outline" class="formField">
<textarea
matInput
placeholder="Describe the additional content"
rows=6
formControlName="additional_content"></textarea>
</mat-form-field>
</div>
<div>
<button mat-raised-button type="submit" class="submitBtn" [disabled]="!myForm.valid">Submit</button>
</div>
</form>
Question
What is the correct way to add validationss dynamically?
Thanks in advance.

Angular 5 Passing form data to another component's dropdown in sync

I have a form (a material dialog modal) which lets the user to create an account, once the user clicks on Register button then the user stays on the same page with the username of that account that he created. The issue I am having is its getting created but its not getting updated in sync with the closing of dialog modal. Means the user should be registered and in parallel that created user value should be populated in the dropdown for better user expereince. I dont want the user to distract from the current page because if the user have entered the details and if that page is reloaded then all the data whatever he entered will be lost. So i dont want that to happen. So for that i created this below code.
<section class="container-fluid with-maxwidth chapter">
<article class="article">
<div class="box box-default">
<div class="box-body">
<mat-horizontal-stepper [linear]="true" #stepper>
<mat-step [stepControl]="firstFormGroup">
<form [formGroup]="firstFormGroup">
<ng-template matStepLabel>Project Registration</ng-template>
<div class="form-group row"></div>
<div class="form-group row">
<label for="name" class="col-md-0 control-label"></label>
<div class="col-md-5">
<mat-input-container class="full-width">
<input required [(ngModel)]="project.name" formControlName="nameCtrl" id="name"
matInput placeholder="Project name">
</mat-input-container>
</div>
</div>
<!-- Repository details -->
<div class="form-group row">
<label for="name" class="col-md-0 control-label"></label>
<div class="col-md-5">
<mat-input-container class="full-width">
<input required [(ngModel)]="project.url" formControlName="urlCtrl" id="repo"
matInput placeholder="Repository URL">
</mat-input-container>
</div>
<div class="col-md-7">
<div class="callout1 text-muted callout-info1">
<p>e.g. https://github.com/username/MyApp.git or
git#github.com:username/MyApp.git.
</p>
</div>
</div>
</div>
<div class="form-group row">
<label class="col-md-0 control-label">
</label>
<div class="col-md-5">
<mat-form-field>
<mat-select placeholder="Repository Credentials" required
[(ngModel)]="project.account.id" formControlName="typeCtrl">
<mat-option *ngFor="let account of accounts" [value]="account.id">
{{account.name}} ({{account.accountType}})
</mat-option>
</mat-select>
</mat-form-field>
</div>
<div class="col-md-7">
<div class="callout1 text-muted callout-info1">
<p>
Add credentials
<br/>
Credentials are required for automatic test creation and check-in.
</p>
</div>
</div>
</div>
<div>
<mat-card-actions>
<button mat-raised-button color="primary"
class="nav-btn"
[disabled]="firstFormGroup.invalid"
(click)="save(stepper);">Save & Next
</button>
</mat-card-actions>
</div>
<div class="form-group row">
<div class="col-md-0"></div>
<div class="col-md-8">
<button [disabled]="!heroForm.valid" mat-raised-button color="primary" (click)="create();"
class="btn-w-md no-margin-left">Register
</button>
<button mat-button type="button" color="primary" class="btn-w-md" (click)="onClose();">Cancel
</button>
</div>
</div>
</form>
</mat-step>
</mat-horizontal-stepper>
</div>
</div>
</article>
</section>
From the template's below code, here if go to other page and then come to here then the username is adding to the drop down properly. But i dont want the user to go back and forth to see whether his credentials are registered or not but instead i want to show the credentials created on the fly so that he can further move.
<mat-form-field>
<mat-select placeholder="Repository Credentials" required
[(ngModel)]="project.account.id" formControlName="typeCtrl">
<mat-option *ngFor="let account of accounts" [value]="account.id">
{{account.name}} ({{account.accountType}})
</mat-option>
</mat-select>
</mat-form-field>
The code for register dialog box component
export class RegisterComponent implements OnInit{
#Input() entry: Account = new Account();
create(entry: Account) {
this.handler.activateLoader();
this.snackbarService.openSnackBar(this.entry.name + " registering...", "");
this.accountService.create(entry).subscribe(results => {
this.entry = entry;
this.handler.hideLoader();
if (this.handler.handle(results)) {
return;
}
this.snackbarService.openSnackBar(this.entry.name + " registered successfully", "");
this.onClose();
// this.router.navigateByUrl('/app/projects', {skipLocationChange: true}).then(()=>
// this.router.navigate(['/app/projects/new']));
this.router.navigate(['/app/projects/new']);
}, error => {
this.handler.hideLoader();
this.handler.error(error);
});
}
onClose(){
this.dialogRef.close();
}
}
This is where i have written the service:
import { Account } from './../models/project.model';
import { Injectable } from '#angular/core';
import { HttpClient, HttpHeaders, HttpParams } from '#angular/common/http';
import { Headers } from '#angular/http';
import { Observable, Subject } from 'rxjs';
import 'rxjs/add/observable/timer';
import 'rxjs/add/operator/toPromise';
#Injectable()
export class AccountService {
private serviceUrl = '/api/v1/accounts';
private entry = new Subject<Object>();
entry$ = this.entry.asObservable();
constructor(private http: HttpClient) {
}
create(entry: Account): Observable<any> {
return this.http.post(this.serviceUrl, entry);
}
emitAccount(entry){
this.entry.next();
}
}
I want the user to be on the same page and should update the dropdown with latest results. How is that possible? Could you please suggest me? What i have done wrong with my code.
Thanks.

create Service:
let newEntry = this.http.post(this.serviceUrl, entry);
emitAccount(newEntry);
return newEntry;
Register Component:
entry$.subscribe(updateAccount => {
accounts.push(updateAccount)
}

So to check .. it's about this section?
<mat-option *ngFor="let account of accounts" [value]="account.id">
{{account.name}} ({{account.accountType}})
</mat-option>
BEcause I don't see anything in your code repopulating accounts array after registering.
I can't see where you bind the accounts array.