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Aurelia Validation Demo
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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'; | |
// Custom renderer (modified): https://aurelia.io/docs/plugins/validation#custom-renderers | |
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 || element.hasAttribute('disabled')) return; | |
// Add a bunch of error classes | |
formGroup.classList.add('text-danger'); | |
element.classList.add('border'); | |
element.classList.add('border-danger'); | |
element.classList.add('text-danger'); | |
const message = document.createElement('small'); | |
message.className = 'help-block validation-message'; | |
message.textContent = result.message; | |
message.id = `validation-message-${result.id}`; | |
formGroup.appendChild(message); | |
} | |
remove(element: Element, result: ValidateResult) { | |
if (result.valid) return; | |
const formGroup = element.closest('.form-group'); | |
if (!formGroup) return; | |
const message = formGroup.querySelector(`#validation-message-${result.id}`); | |
if (message) { | |
formGroup.removeChild(message); | |
// Add a bunch of error classes | |
if (formGroup.querySelectorAll('.help-block.validation-message').length === 0) { | |
formGroup.classList.remove('text-danger'); | |
element.classList.remove('border'); | |
element.classList.remove('border-danger'); | |
element.classList.remove('text-danger'); | |
} | |
} | |
} | |
} | |
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<!doctype html> | |
<html> | |
<head> | |
<title>Aurelia</title> | |
<meta name="viewport" content="width=device-width, initial-scale=1"> | |
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous"> | |
</head> | |
<body aurelia-app="main" class="m-4"> | |
<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> | |
<div class="row"> | |
<div class="col-12"> | |
<div class="alert alert-warning alert-dismissible show fade"> | |
configuration.widgetPackage: <b>${$this.configuration.widgetPackage || '-'}</b><br/> | |
configuration.settings.screenType: <b>${$this.configuration.screenType || '-'}</b><br/> | |
errors: <b>${$this.errors}</b> | |
</div> | |
</div> | |
</div> | |
<div class="row"> | |
<div class="col"> | |
<div class="form-group"> | |
<select class="custom-select" value.bind="$this.selectedWidgetPackage & validateOnChange" validation-errors.bind="selectedWidgetPackageErrors" > | |
<option model.bind="null">Select a widget package</option> | |
<option repeat.for="widget of widgets" model.bind="widget"> | |
${widget.name} | |
</option> | |
</select> | |
</div> | |
</div> | |
<div class="col"> | |
<div class="form-group"> | |
<select class="custom-select" value.bind="$this.selectedOrientation & validateOnChange" disabled.bind="!$this.selectedWidgetPackage" validation-errors.bind="selectedOrientationErrors"> | |
<option model.bind="null">Select screen orientation</option> | |
<option repeat.for="screen of relevantWidgetPackage" model.bind="screen"> | |
${screen.type} | |
</option> | |
</select> | |
</div> | |
</div> | |
</div> | |
</template> |
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import { bindable, inject } from 'aurelia-framework'; | |
import { BindingEngine, computedFrom, observable } from "aurelia-binding"; | |
import { ValidationControllerFactory, ValidationController, ValidationRules, ValidateResult } from 'aurelia-validation'; | |
import {BootstrapFormRenderer} from './bootstrap-form-renderer'; | |
@inject(ValidationControllerFactory) | |
export class RegistrationForm { | |
@observable selectedWidgetPackage = undefined; | |
@observable selectedOrientation = undefined; | |
errors = undefined; | |
controller = undefined; | |
configuration = Object.assign({}); | |
widgets = [{ id: 'arl', name: 'arl-widgets' }, { id: 'wmt', name: 'wmt-widgets' },]; | |
screens = [{ type: 'Landscape', widgets: [ { id: 'arl' }, { id: 'wmt' } ]},{ type: 'Portrait', widgets: [ { id: 'arl' }, { id: 'wmt' } ]}, | |
{ type: 'Mainboard', widgets: [ { id: 'wmt' } ]}]; | |
constructor(controllerFactory) { | |
this.controller = controllerFactory.createForCurrentScope(); | |
this.controller.addRenderer(new BootstrapFormRenderer()); | |
ValidationRules | |
.ensure('selectedWidgetPackage').required().withMessage('Please select a widget package') | |
.ensure('selectedOrientation').required().withMessage('Please select screen orientation') | |
.on(RegistrationForm); | |
} | |
activate(model) { | |
this.configuration = model; | |
if (this.configuration) { | |
this.configuration.settings = Object.assign({}); | |
this.configuration.settings.errors = Object.assign({}); | |
} | |
} | |
attached() { | |
this.controller.validate(); | |
} | |
bind() {} | |
selectedWidgetPackageChanged(newValue, oldValue) { | |
if (newValue !== oldValue) { | |
this.configuration.widgetPackage = this.selectedWidgetPackage ? `${newValue.id}-widgets` : null; | |
} | |
this.getErrors(); | |
} | |
selectedOrientationChanged(newValue, oldValue) { | |
if (newValue !== oldValue) { | |
this.configuration.screenType = this.selectedOrientation ? newValue.type : null; | |
} | |
this.getErrors(); | |
} | |
@computedFrom('selectedWidgetPackage') | |
get relevantWidgetPackage() { | |
if(!this.selectedWidgetPackage) return []; | |
return this.screens.filter(screen => screen.widgets.some(item => item.id === this.selectedWidgetPackage.id)); | |
} | |
getErrors() { | |
this.controller.validate(); | |
this.errors = this.controller.errors.length; | |
console.dir(this.controller); | |
console.log(this.controller.errors.length) | |
} | |
} |
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