README

Deform helps you build and process consistent HTML forms with PHP.

Components are rendered as standard HTML/CSS by default, but can also be exported as JavaScript custom elements.

Contents

Installation
Getting Started
Features
Examples
Styling
Project Info
Contact

Quick Demo

Direct component usage:

<?php
use \Deform\Component\ComponentFactory as Component;
?>
<form action="" method="post">
    <?= Component::Text('login', 'email')->label('Email', true); ?>
    <?= Component::Password('login', 'password')->label('Password', true); ?>
</form>

generates:

<form action="" method="post">
    <div id='login-email-container' class='component-container container-type-text'>
        <div class='label-container'><label style='margin-bottom:0' for='text-login-email'>Email <span class="required">*</span></label></div>
        <div class='control-container'><input id='text-login-email' name='login[email]' type='text'></div>
    </div>
    <div id='login-password-container' class='component-container container-type-password'>
        <div class='label-container'><label style='margin-bottom:0' for='password-login-password'>Password <span class="required">*</span></label></div>
        <div class='control-container'><input id='password-login-password' name='login[password]' type='password'></div>
    </div>
    <div class="center"><input id='submit-login-Login' name='login[Login]' type='submit' value='Login'></div>
</form>

Installation

With composer:

composer require dougallwinship/deform:dev-master

Alternatively you can manually install via git.

git clone https://github.com/DougallWinship/deform.git

Then move the code to a suitable directory and add a PSR-4 autoloader.

Getting started

Raw components

Components can be used directly in a view file like this

<?php use \Deform\Component\ComponentFactory as Component; ?>
<?= Component::Text('namespace','text-field')
    ->label('Text Field Label')
    ->value('initial value')
    ->hint('text field hint');
?>

Your IDE should help with auto-completion lists to see what components are currently available. The authority is the annotations listed in ComponentFactory.

Form Model

While it's possible to use the components manually, it's recommended to make a FormModel to represent a set of components & specify what you wish to do with them.

<?php

namespace App/Form;

class LoginForm extends \Deform\Form\FormModel
{
    public function __construct() 
    {
        parent::__construct('login-form');
        $this->addHtml("<h1>Login</h1>");
        $this->addText('email')->label('Email');
        $this->addPassword('password')->label('Password');
        $this->addDisplay('login-failed-message');
        $this->addSubmit('Login');
    }
    
    public function validateFormData(array $formData) {
        if (!isset($formData['email']) || !isset($formData['password'])) {
            throw new \Exception('Unexpected missing form data');
        }
        $errors = [];
        if (!$formData['email']) {
            $errors['email']='Missing email';
        }
        elseif (!filter_var($email_a, FILTER_VALIDATE_EMAIL)) {
            $errors['email']='Invalid email';
        }
        if (!$formData['password']) {
            $errors['password']='Missing password';
        }
        return count($errors)===0 
            ? true 
            : $errors;
    }
    
    public function processFormData(array $formData) 
    {
        // obviously this assumes you have an Auth class!
        if (Auth::checkCredentials($formData['email'], $formData['password'])) {
            Auth::login($formData['email'], $formData['password']);
            Auth::redirectAfterLogin()
        }
        else {
            $this->getFieldComponent('login-error-message')
                ->value("Email or password was incorrect");
        }
    }
}

Typically, you would instantiate this in a controller action as follows:

$loginForm = new LoginForm();
$loginForm->run();

Then pass $loginForm to your view:

<?= $loginForm->getFormHtml(); ?>

The reason this library is called deform is that you can manipulate the form using selectors. Please see build.php and document.php for example usage.

You can also convert the form to an array definition, and build a form instance from an array definition.

$loginFormDefinition = $loginForm->toArray();
$rebuiltLoginForm = FormModel::buildForm($loginFormDefinition);

Roadmap:

• change acceptance tests to use a real browser (via selenium) & test custom components (etc.)
• add instructions/examples on making your own components
• improve the usage instructions/examples (particularly for the form layer)

Contact

You can contact me here : dougall.winship@gmail.com