import { Component, OnInit } from '@angular/core';
import { FormGroup, FormArray, FormBuilder, FormBuilder, Validators } from '@angular/forms';
import { Customer } from './customer.interface';
@Component({
moduleId: module.id,
selector: 'my-app',
templateUrl: 'app.component.html',
})
export class AppComponent implements OnInit {
public myForm: FormGroup; // our model driven form
// standing data
public PAYMENT_METHOD_TYPE = {
BANK: 'bank',
CARD: 'card'
};
constructor(private _fb: FormBuilder) { } // form builder simplify form initialization
ngOnInit() {
// we will initialize our form model here
this.myForm = this._fb.group({
name: ['Jane Doe'],
paymentMethod: this.initPaymentMethodFormGroup()
});
this.subscribePaymentTypeChanges();
this.setPaymentMethodType(this.PAYMENT_METHOD_TYPE.BANK);
}
initPaymentMethodFormGroup() {
// initialize payment method form group
const group = this._fb.group({
type: [''],
card: this._fb.group(this.initPaymentMethodCardModel()),
bank: this._fb.group(this.initPaymentMethodBankModel()),
});
return group;
}
subscribePaymentTypeChanges() {
// controls
const pmCtrl = (<any>this.myForm).controls.paymentMethod;
const bankCtrl = pmCtrl.controls.bank;
const cardCtrl = pmCtrl.controls.card;
// initialize value changes stream
const changes$ = pmCtrl.controls.type.valueChanges;
// subscribe to the stream
changes$.subscribe(paymentMethodType => {
if (paymentMethodType === this.PAYMENT_METHOD_TYPE.BANK) {
Object.keys(bankCtrl.controls).forEach(key => {
bankCtrl.controls[key].setValidators(this.initPaymentMethodBankModel()[key][1]);
bankCtrl.controls[key].updateValueAndValidity();
});
Object.keys(cardCtrl.controls).forEach(key => {
cardCtrl.controls[key].setValidators(null);
cardCtrl.controls[key].updateValueAndValidity();
});
}
if (paymentMethodType === this.PAYMENT_METHOD_TYPE.CARD) {
Object.keys(bankCtrl.controls).forEach(key => {
bankCtrl.controls[key].setValidators(null);
bankCtrl.controls[key].updateValueAndValidity();
});
Object.keys(cardCtrl.controls).forEach(key => {
cardCtrl.controls[key].setValidators(this.initPaymentMethodCardModel()[key][1]);
cardCtrl.controls[key].updateValueAndValidity();
});
}
});
}
initPaymentMethodCardModel() {
// you get valid testing credit card from http://www.getcreditcardnumbers.com/
const cardNoRegex = `^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\d{3})\d{11})$`;
const expiryRegex = `^(0[1-9]|1[0-2])\/?([0-9]{4}|[0-9]{2})$`;
// initialize card model
const model = {
cardNo: ['', [Validators.required, Validators.pattern(cardNoRegex)]],
cardHolder: ['', Validators.required],
expiry: ['', [Validators.required, Validators.pattern(expiryRegex)]]
};
return model;
}
initPaymentMethodBankModel() {
// initialize bank model
const model = {
accountNo: ['', Validators.required],
accountHolder: ['', Validators.required],
routingNo: ['', Validators.required]
};
return model;
}
setPaymentMethodType(type: string) {
// update payment method type value
const ctrl: FormControl = (<any>this.myForm).controls.paymentMethod.controls.type;
ctrl.setValue(type);
}
save(model: Customer, isValid: boolean) {
// call API to save
// ...
console.log(model, isValid);
}
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { AppComponent } from './app.component';
@NgModule({
imports: [ BrowserModule, ReactiveFormsModule ],
declarations: [ AppComponent ],
bootstrap: [ AppComponent ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { AppModule } from './app.module';
const platform = platformBrowserDynamic();
platform.bootstrapModule(AppModule);
<!DOCTYPE html>
<html>
<head>
<title>Handle different form controls</title>
<!--optional bootstrap for faster styling-->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 1. Load libraries -->
<!-- Polyfill(s) for older browsers -->
<script src="https://unpkg.com/core-js/client/shim.min.js"></script>
<script src="https://unpkg.com/zone.js@0.6.23?main=browser"></script>
<script src="https://unpkg.com/reflect-metadata@0.1.3"></script>
<script src="https://unpkg.com/systemjs@0.19.27/dist/system.src.js"></script>
<!-- 2. Configure SystemJS -->
<script src="systemjs.config.js"></script>
<script>
System.import('app').catch(function(err){ console.error(err); });
</script>
</head>
<!-- 3. Display the application -->
<body>
<my-app>Loading...</my-app>
</body>
</html>
/**
* PLUNKER VERSION
* (based on systemjs.config.js in angular.io)
* System configuration for Angular 2 samples
* Adjust as necessary for your application needs.
*/
(function (global) {
System.config({
// DEMO ONLY! REAL CODE SHOULD NOT TRANSPILE IN THE BROWSER
transpiler: 'ts',
typescriptOptions: {
tsconfig: true
},
meta: {
'typescript': {
"exports": "ts"
}
},
paths: {
// paths serve as alias
'npm:': 'https://unpkg.com/'
},
// map tells the System loader where to look for things
map: {
// our app is within the app folder
app: 'app',
// angular bundles
'@angular/core': 'npm:@angular/core/bundles/core.umd.js',
'@angular/common': 'npm:@angular/common/bundles/common.umd.js',
'@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
'@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
'@angular/http': 'npm:@angular/http/bundles/http.umd.js',
'@angular/router': 'npm:@angular/router/bundles/router.umd.js',
'@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
'@angular/upgrade': 'npm:@angular/upgrade/bundles/upgrade.umd.js',
// other libraries
'rxjs': 'npm:rxjs',
'angular2-in-memory-web-api': 'npm:angular2-in-memory-web-api',
'ts': 'npm:plugin-typescript@4.0.10/lib/plugin.js',
'typescript': 'npm:typescript@2.0.2/lib/typescript.js',
},
// packages tells the System loader how to load when no filename and/or no extension
packages: {
app: {
main: './main.ts',
defaultExtension: 'ts'
},
rxjs: {
defaultExtension: 'js'
},
'angular2-in-memory-web-api': {
main: './index.js',
defaultExtension: 'js'
}
}
});
})(this);
{
"compilerOptions": {
"target": "es5",
"module": "commonjs",
"moduleResolution": "node",
"sourceMap": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"removeComments": false,
"noImplicitAny": true,
"suppressImplicitAnyIndexErrors": true
}
}
export interface Customer {
name: stirng;
paymentMethod: {
type: string; // must be either 'bank' or 'card'
card: {
cardNo: string; // must be visa, master, amex
cardHolder: string;
expiry: string; // must be format MM/YY
},
bank: {
accountNo: string;
accountHolder: string;
routingNo: string;
}
}
}
<div class="container">
<div class="row">
<div class="col-xs-12">
<div class="margin-20">
<h4>Add customer</h4>
</div>
<form [formGroup]="myForm" novalidate (ngSubmit)="save(myForm.value, myForm.valid)">
<div class="form-group">
<label>Name</label>
<input type="text" class="form-control" formControlName="name">
</div>
<!--payment method-->
<div class="form-group">
<label>Payment Method</label>
</div>
<div formGroupName="paymentMethod">
<div class="row">
<div class="col-xs-6">
<button type="button" (click)="setPaymentMethodType(PAYMENT_METHOD_TYPE.BANK)"
class="btn btn-block text-capitalize"
[class.btn-default]="myForm.controls.paymentMethod.controls.type.value !== PAYMENT_METHOD_TYPE.BANK"
[class.btn-primary]="myForm.controls.paymentMethod.controls.type.value === PAYMENT_METHOD_TYPE.BANK">
{{ PAYMENT_METHOD_TYPE.BANK }}
</button>
</div>
<div class="col-xs-6">
<button type="button" (click)="setPaymentMethodType(PAYMENT_METHOD_TYPE.CARD)"
class="btn btn-block text-capitalize"
[class.btn-default]="myForm.controls.paymentMethod.controls.type.value !== PAYMENT_METHOD_TYPE.CARD"
[class.btn-primary]="myForm.controls.paymentMethod.controls.type.value === PAYMENT_METHOD_TYPE.CARD">
{{ PAYMENT_METHOD_TYPE.CARD }}
</button>
</div>
</div>
<div class="panel panel-default margin-20"
*ngIf="myForm.controls.paymentMethod.controls.type.value === PAYMENT_METHOD_TYPE.BANK">
<div class="panel-body">
<div class="form-group col-xs-8" formGroupName="bank">
<label>Account no.</label>
<input type="text" class="form-control" formControlName="accountNo">
<small *ngIf="!myForm.controls.paymentMethod.controls.bank.controls.accountNo.valid"
class="text-danger">
Required.
</small>
</div>
<div class="form-group col-xs-4" formGroupName="bank">
<label>Routing no.</label>
<input type="text" class="form-control" formControlName="routingNo">
<small *ngIf="!myForm.controls.paymentMethod.controls.bank.controls.routingNo.valid"
class="text-danger">
Required.
</small>
</div>
<div class="form-group col-xs-12" formGroupName="bank">
<label>Name</label>
<input type="text" class="form-control" formControlName="accountHolder">
<small *ngIf="!myForm.controls.paymentMethod.controls.bank.controls.accountHolder.valid"
class="text-danger">
Required.
</small>
</div>
</div>
</div>
<div class="panel panel-default margin-20"
*ngIf="myForm.controls.paymentMethod.controls.type.value === PAYMENT_METHOD_TYPE.CARD">
<div class="panel-body">
<div class="form-group col-xs-8" formGroupName="card">
<label>Card no.</label>
<input type="text" class="form-control" formControlName="cardNo">
<small *ngIf="!myForm.controls.paymentMethod.controls.card.controls.cardNo.valid"
class="text-danger">
Required (Must be valid card number).
</small>
</div>
<div class="form-group col-xs-4" formGroupName="card">
<label>Expiry</label>
<input type="text" formControlName="expiry"
placeholder="MM/YY" class="form-control">
<small *ngIf="!myForm.controls.paymentMethod.controls.card.controls.expiry.valid"
class="text-danger">
Required (Must be in format MM/YY).
</small>
</div>
<div class="form-group col-xs-12" formGroupName="card">
<label>Name</label>
<input type="text" class="form-control" formControlName="cardHolder">
<small *ngIf="!myForm.controls.paymentMethod.controls.card.controls.cardHolder.valid"
class="text-danger">
Required.
</small>
</div>
</div>
</div>
</div>
<div class="margin-20">
<button type="submit" class="btn btn-primary pull-right" [disabled]="!myForm.valid">Submit</button>
</div>
<div class="clearfix"></div>
<div class="margin-20">
<div>myForm details:-</div>
<pre>Is myForm valid?: <br>{{myForm.valid | json}}</pre>
<pre>form value: <br>{{myForm.value | json}}</pre>
</div>
</form>
</div>
</div>
</div>