29 lines
829 B
TypeScript
29 lines
829 B
TypeScript
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import {Directive, Input} from '@angular/core';
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import {AbstractControl, NG_VALIDATORS} from '@angular/forms';
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import {ValidationService} from './services/validation.service';
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@Directive({
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selector: '[appValidate]',
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providers: [{provide: NG_VALIDATORS, useExisting: ValidateDirective, multi: true}]
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})
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export class ValidateDirective {
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@Input('appValidate') method: string;
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@Input('appValidateArgs') args: Array<any>;
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constructor(
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private validation: ValidationService
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) { }
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validate(control: AbstractControl): {[key: string]: any} | null {
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let ok;
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let error;
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if (this.args) {
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({ok, error} = this.validation[this.method](control.value, ...this.args));
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}
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else {
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({ok, error} = this.validation[this.method](control.value));
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}
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return ok ? null : { failure: error };
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}
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}
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