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Aurelia addError() during validation
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| <template> | |
| <require from="./registration-form"></require> | |
| <registration-form></registration-form> | |
| </template> |
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| export class App { | |
| } |
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| import { | |
| ValidationRenderer, | |
| RenderInstruction, | |
| ValidateResult | |
| } from 'aurelia-validation'; | |
| export class BootstrapFormRenderer { | |
| render(instruction: RenderInstruction) { | |
| for (let { result, elements } of instruction.unrender) { | |
| for (let element of elements) { | |
| this.remove(element, result); | |
| } | |
| } | |
| for (let { result, elements } of instruction.render) { | |
| for (let element of elements) { | |
| this.add(element, result); | |
| } | |
| } | |
| } | |
| add(element: Element, result: ValidateResult) { | |
| if (result.valid) { | |
| return; | |
| } | |
| const formGroup = element.closest('.form-group'); | |
| if (!formGroup) { | |
| return; | |
| } | |
| // add the has-error class to the enclosing form-group div | |
| formGroup.classList.add('has-error'); | |
| // add help-block | |
| const message = document.createElement('span'); | |
| message.className = 'help-block validation-message'; | |
| message.textContent = result.message; | |
| message.id = `validation-message-${result.id}`; | |
| formGroup.appendChild(message); | |
| } | |
| remove(element: Element, result: ValidateResult) { | |
| if (result.valid) { | |
| return; | |
| } | |
| const formGroup = element.closest('.form-group'); | |
| if (!formGroup) { | |
| return; | |
| } | |
| // remove help-block | |
| const message = formGroup.querySelector(`#validation-message-${result.id}`); | |
| if (message) { | |
| formGroup.removeChild(message); | |
| // remove the has-error class from the enclosing form-group div | |
| if (formGroup.querySelectorAll('.help-block.validation-message').length === 0) { | |
| formGroup.classList.remove('has-error'); | |
| } | |
| } | |
| } | |
| } |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <title>Aurelia</title> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous"> | |
| <style> | |
| registration-form { | |
| display: block; | |
| max-width: 300px; | |
| margin-left: auto; | |
| margin-right: auto; | |
| } | |
| </style> | |
| </head> | |
| <body aurelia-app="main"> | |
| <h1>Loading...</h1> | |
| <script src="https://jdanyow.github.io/rjs-bundle/node_modules/requirejs/require.js"></script> | |
| <script src="https://jdanyow.github.io/rjs-bundle/config.js"></script> | |
| <script src="https://jdanyow.github.io/rjs-bundle/bundles/aurelia.js"></script> | |
| <script src="https://jdanyow.github.io/rjs-bundle/bundles/babel.js"></script> | |
| <script> | |
| require(['aurelia-bootstrapper']); | |
| </script> | |
| </body> | |
| </html> |
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| export function configure(aurelia) { | |
| aurelia.use | |
| .standardConfiguration() | |
| .developmentLogging() | |
| .plugin('aurelia-validation'); | |
| aurelia.start().then(() => aurelia.setRoot()); | |
| } |
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| <template> | |
| <form submit.delegate="submit()"> | |
| <!--<ul><li repeat.for="error of controller.errors">${error.message}</li></ul>--> | |
| <div class="form-group"> | |
| <label class="control-label" for="first">First Name</label> | |
| <input type="text" class="form-control" id="first" placeholder="First Name" | |
| value.bind="firstName & validate"> | |
| </div> | |
| <button type="submit" class="btn btn-primary">Submit</button> | |
| <p style="margin-top: 1em"> | |
| See <code>registration-form.js</code>. | |
| We'd expect two errors be rendered: the one manually added during validation | |
| and the one added afterwards. Instead, the error added during validation is lost. | |
| </p> | |
| </form> | |
| </template> |
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| import {inject} from 'aurelia-dependency-injection'; | |
| import { | |
| ValidationControllerFactory, | |
| ValidationController, | |
| ValidationRules | |
| } from 'aurelia-validation'; | |
| import {BootstrapFormRenderer} from './bootstrap-form-renderer'; | |
| @inject(ValidationControllerFactory) | |
| export class RegistrationForm { | |
| firstName = 'some value'; | |
| controller = null; | |
| constructor(controllerFactory) { | |
| this.controller = controllerFactory.createForCurrentScope(); | |
| this.controller.addRenderer(new BootstrapFormRenderer()); | |
| ValidationRules | |
| .ensureObject() | |
| .satisfies(form => { | |
| this.controller.addError("This error is lost", this, "firstName"); | |
| return false; | |
| }) | |
| .on(this); | |
| } | |
| submit() { | |
| this.controller.validate().then(() => { | |
| this.controller.addError("This error remains", this, "firstName"); | |
| }); | |
| } | |
| } | |
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