ng2-validators

ng2-validators

An implementation of various angular validators for Angular 2.

List of validators

1. Password
2. Email
3. Universal
4. Creditcards

Password validators

The rules are from https://github.com/vt-middleware/passay

The password validators are:

• repeatCharacterRegexRule
• whitespaceRule (moved to UniversalValidators)
• allowedCharacterRule
• alphabeticalCharacterRule
• digitCharacterRule
• lowercaseCharacterRule
• uppercaseCharacterRule
• more will come

Email validators

• simple (only checks if it looks like a mail)
• normal (follows the HTML5 rules)

Universal validators

• noWhitespace
• isNumber
• isInRange
• minLength
• maxLength

Creditcard validators

• americanexpress
• visa
• dinersclub
• discover
• jcb
• maestro
• mastercard

Install

npm install ng2-validators

How to use [model driven]

needs: ReactiveFormsModule

Passwords

@import {PasswordValidators} from 'ng2-validators/ng2-validators'

...
password: Control = new Control('', Validators.compose([
        PasswordValidators.repeatCharacterRegexRule(4),
        PasswordValidators.whitespaceRule(),
        PasswordValidators.alphabeticalCharacterRule(1);
        PasswordValidators.digitCharacterRule(1);
        PasswordValidators.lowercaseCharacterRule(1);
        PasswordValidators.uppercaseCharacterRule(1);
        PasswordValidators.allowedCharacterRule(['a', 'b']);
    ]));

Password mismatch

@import {PasswordValidators} from 'ng2-validators/ng2-validators'

...

let password: FormControl = new FormControl('testPassword');
let confirmPassword: FormControl = new FormControl('testPassword');
let form = new FormGroup({
    'newPassword': password,
    'confirmPassword': confirmPassword
}, PasswordValidators.mismatchedPasswords()
);

Override control name

@import {PasswordValidators} from 'ng2-validators/ng2-validators'

...

let password: FormControl = new FormControl('testPassword');
let confirmPassword: FormControl = new FormControl('testPassword');
let form = new FormGroup({
    'testName': password,
    'testName2': confirmPassword
}, PasswordValidators.mismatchedPasswords('testName', 'testName2' )
);

Email

@import {EmailValidators} from 'ng2-validators/ng2-validators'

...

email: Control = new Control('', EmailValidators.normal());
email2: Control = new Control('', EmailValidators.simple());

Universal

@import {UniversalValidators} from 'ng2-validators/ng2-validators'

...

control: Control = new Control('', UniversalValidators.noWhitespace());
control: Control = new Control('', UniversalValidators.isNumber());
control: Control = new Control('', UniversalValidators.isInRange(2, 5));
control: Control = new Control('', UniversalValidators.minLength(2));
control: Control = new Control('', UniversalValidators.maxLength(7));
control: Control = new Control('', UniversalValidators.min(2));
control: Control = new Control('', UniversalValidators.max(2));

Creditcards

@import {CreditCardValidators} from 'ng2-validators/ng2-validators'

...

control: Control = new Control('', UniversalValidators.isCreditCard());
control: Control = new Control('', UniversalValidators.americanExpress());
control: Control = new Control('', UniversalValidators.dinersclub());
control: Control = new Control('', UniversalValidators.discover());
control: Control = new Control('', UniversalValidators.jcb());
control: Control = new Control('', UniversalValidators.maestro());
control: Control = new Control('', UniversalValidators.mastercard());
control: Control = new Control('', UniversalValidators.visa());

How to use [template driven][beta]

needs FormsModule and ValidatorsModule

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { ValidatorsModule } from 'ng2-validators/ng2-validators'

import { AppComponent } from './app.component';

@NgModule({
    imports: [BrowserModule, FormsModule, ValidatorsModule],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule {
}

Password

<form>
<input type="password" [(ngModel)]="model.password" name="password" #formControl="ngModel" password>
<p *ngIf="formControl.hasError('repeatCharacterRegexRule')">Password contains repeating characters</p>
<p *ngIf="formControl.hasError('digitCharacterRule')">Password should contain at least on digit</p>
<p *ngIf="formControl.hasError('alphabeticalCharacterRule')">Password should contain at least on alphabetical character</p>
<p *ngIf="formControl.hasError('lowercaseCharacterRule')">Password should contain at least on lowercase character</p>
<p *ngIf="formControl.hasError('uppercaseCharacterRule')">Password should contain at least on uppercase character</p>
</form>

// Override values
<input type="password" [(ngModel)]="model.password" name="password" #formControl="ngModel"
    password
    [repeatCharacter]="2"
    [alphabeticalCharacter]="2"
    [digitCharacter]="2"
    [lowercaseCharacter]="2"
    [uppercaseCharacter]="2"
>

Creditcard

<form>

<input type="text" [(ngModel)]="model.creditcard" name="creditcard" #formControl="ngModel" creditCard>
<p *ngIf="formControl.hasError('creditcard')">Is not a creditcard</p>
</form>

// Override values
// Test only for a specific creditcard
<input type="text" [(ngModel)]="model.creditcard" name="creditcard" #formControl="ngModel" [creditCard]="all|americanExpress|dinersclub|discover|jcb|maestro|mastercard|visa">

Email

<form>
<input type="text" [(ngModel)]="model.email" name="email" #formControl="ngModel" email>
<p *ngIf="formControl.hasError('normalEmailRule')">Is not a email</p>
</form>

Universal

whitespace

<form>
<input type="text" [(ngModel)]="model.firstname" name="firstname" #formControl="ngModel" noWhitespace>
<p *ngIf="formControl.hasError('noWhitespaceRequired')">Should not contain a whitespace</p>
</form>

isNumber

<form>
<input type="number" [(ngModel)]="model.amount" name="amount" #formControl="ngModel" isNumber>
<p *ngIf="formControl.hasError('numberRequired')">Needs to be a number</p>
</form>

isInRange

<form>
<input type="number" [(ngModel)]="model.amount" name="amount" #formControl="ngModel" isInRange  [min]="2" [max]="4">
<p *ngIf="formControl.hasError('numberRequired')">Needs to be a number</p>
<p *ngIf="formControl.hasError('rangeValueToSmall')">Number to small</p>
<p *ngIf="formControl.hasError('rangeValueToBig')">Number to big</p>
</form>

min

<form>
<input type="number" [(ngModel)]="model.amount" name="amount" #formControl="ngModel" [min]="2">
<p *ngIf="formControl.hasError('numberRequired')">Needs to be a number</p>
<p *ngIf="formControl.hasError('min')">Number to small</p>
</form>

max

<form>
<input type="number" [(ngModel)]="model.amount" name="amount" #formControl="ngModel" [max]="2">
<p *ngIf="formControl.hasError('numberRequired')">Needs to be a number</p>
<p *ngIf="formControl.hasError('max')">Number to small</p>
</form>

##Todo

• Implement https://github.com/mailcheck/mailcheck
• Add more password rules
• Add phone validators
• Add address validator

Get the complete changelog here: https://github.com/Nightapes/ng2-validators/releases