Documentation

Laravel Form Components

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A set of Blade components to rapidly build forms with Tailwind CSS Custom Forms and Bootstrap 4. Supports validation, model binding, default values, translations, includes default vendor styling and fully customizable!

Features

  • Components for input, textarea, select, multi-select, checkbox and radio elements.
  • Support for Tailwind CSS Custom Forms and Bootstrap 4 Forms.
  • Component logic independent from Blade views, the Tailwind and Bootstrap views use the same logic.
  • Bind a target to a form (or a set of elements) to provide default values.
  • Support for Laravel Livewire.
  • Support for Spatie's laravel-translatable.
  • Re-populate forms with old input.
  • Validation errors.
  • Form method spoofing.
  • Components classes and Blade views fully customizable.
  • Support for prefixing the components.

Requirements

  • PHP 7.4 + Laravel 7.0 and higher

Installation

You can install the package via composer:

composer require protonemedia/laravel-form-components

Make sure the Tailwind plugin is installed and added to your tailwind.config.js file. If you're starting a new project, you can use the Frontend preset for Tailwind CSS which includes the Custom Forms plugin as well.

Quick example

<x-form>
    @bind($user)
        <x-form-input name="last_name" label="Last Name" />
        <x-form-select name="country_code" :options="$options" />
        <x-form-select name="interests" :options="$multiOptions" label="Select your interests" multiple />

        <!-- \Spatie\Translatable\HasTranslations -->
        <x-form-textarea name="biography" language="nl" placeholder="Dutch Biography" />
        <x-form-textarea name="biography" language="en" placeholder="English Biography" />

        <!-- Inline radio inputs -->
        <x-form-group name="newsletter_frequency" label="Newsletter frequency" inline>
            <x-form-radio name="newsletter_frequency" value="daily" label="Daily" />
            <x-form-radio name="newsletter_frequency" value="weekly" label="Weekly" />
        </x-form-group>

        <x-form-group>
            <x-form-checkbox name="subscribe_to_newsletter" label="Subscribe to newsletter" />
            <x-form-checkbox name="agree_terms" label="Agree with terms" />
        </x-form-group>

        <x-form-submit />
    @endbind
</x-form>

Preface

Generating HTML in PHP is always quite opinionated and limited. Blade Components are great because additional attributes are passed down to the element. That's why we prefer writing forms using components instead of using PHP builders. This way, you don't have to write extensions or custom code for any attribute you pass in. Let's take a look at this x-form example.

The action attribute is optional, but you can pass a hard-coded, primitive value to the component using a simple HTML attribute. PHP expressions and variables can be passed to the component as well via attributes that use the : character as a prefix. Do you need Alpine.js or VueJS directives? No problem!

<x-form action="/api/user">
    <!-- ... -->
</x-form>
<x-form :action="route('api.user.store')" v-on:submit="checkForm">
    <!-- ... -->
</x-form>

Configuration

There is no configuration needed unless you want to customize the Blade views and components.

Usage

Input and textarea elements

The minimum requirement for an input or textarea is the name attribute.

<x-form-input name="company_name" />

Optionally you can add a label attribute, which can be computed as well.

<x-form-input name="company_name" label="Company name" />
<x-form-input name="company_name" :label="trans('forms.company_name')" />

You can also choose to use a placeholder instead of a label, and of course you can change the type of the element.

<x-form-input type="email" name="current_email" placeholder="Current email address" />

By default every element shows validation errors but you can hide them if you want.

<x-form-textarea name="description" :show-errors="false" />

Default value and binds

You can use the default attribute to specify the default value of the element.

<x-form-textarea name="motivation" default="I want to use this package because..." />

Binding a target

Instead of setting a default value, you can also pass in a target, like an Eloquent model. Now the component will get the value from the target by the name.

<x-form-textarea name="description" :bind="$video" />

In the example above, where $video is an Eloquent model, the default value will be $video->description.

Binding a target to multiple elements

You can also bind a target by using the @bind directive. This will bind the target to all elements until the @endbind directive.

<x-form>
    @bind($video)
        <x-form-input name="title" label="Title" />
        <x-form-textarea name="description" label="Description" />
    @endbind
</x-form>

You can even mix targets!

<x-form>
    @bind($user)
        <x-form-input name="full_name" label="Full name" />

        @bind($userProfile)
            <x-form-textarea name="biography" label="Biography" />
        @endbind

        <x-form-input name="email" label="Email address" />
    @endbind
</x-form>

Override or remove a binding

You can override the @bind directive by passing a target directly to the element using the :bind attribute. If you want to remove a binding for a specific element, pass in false.

<x-form>
    @bind($video)
        <x-form-input name="title" label="Title" />
        <x-form-input :bind="$videoDetails" name="subtitle" label="Subtitle" />
        <x-form-textarea :bind="false" name="description" label="Description" />
    @endbind
</x-form>

Laravel Livewire

You can use the @wire and @endwire directives to bind a form to a Livewire component. Let's take a look at the ContactForm example from the official Livewire documentation.

use Livewire\Component;

class ContactForm extends Component
{
    public $name;
    public $email;

    public function submit()
    {
        $this->validate([
            'name' => 'required|min:6',
            'email' => 'required|email',
        ]);

        Contact::create([
            'name' => $this->name,
            'email' => $this->email,
        ]);
    }

    public function render()
    {
        return view('livewire.contact-form');
    }
}

Normally you would use a wire:model attribute to bind a component property with a form element. By using the @wire directive, this package will automatically use the wire:model attribute instead of the name attribute.

<x-form wire:submit.prevent="submit">
    @wire
        <x-form-input name="name" />
        <x-form-input name="email" />
    @endwire

    <x-form-submit>Save Contact</x-form-submit>
</form>

Select elements

Besides the name attribute, the select element has a required options attribute, which should be a simple key-value array.

$countries = [
    'be' => 'Belgium',
    'nl' => 'The Netherlands',
];
<x-form-select name="country_code" :options="$countries" />

You can provide a slot to the select element as well:

<x-form-select name="country_code">
   <option value="be">Belgium</option>
   <option value="nl">The Netherlands</option>
</x-form-select>

If you want a select element where multiple options can be selected, add the multiple attribute to the element. If you specify a default, make sure it is an array. This applies to bound targets as well.

<x-form-select name="country_code" :options="$countries" multiple :default="['be', 'nl']" />

Checkbox elements

Checkboxes have a default value of 1, but you can customize it as well.

<x-form-checkbox name="subscribe_to_newsletter" label="Subscribe to newsletter" />

If you have a fieldset of multiple checkboxes, you can group them together with the form-group component. This component has an optional label attribute and you can set the name as well. This is a great way to handle the validation of arrays. If you disable the errors on the individual checkboxes, it will one show the validation errors once. The form-group component has a show-errors attribute that defaults to true.

<x-form-group name="interests" label="Pick one or more interests">
    <x-form-checkbox name="interests[]" :show-errors="false" value="laravel" label="Laravel" />
    <x-form-checkbox name="interests[]" :show-errors="false" value="tailwindcss" label="Tailwind CSS" />
</x-form-group>

Radio elements

Radio elements behave exactly the same as checkboxes, except the show-errors attribute defaults to false as you almost always want to wrap multiple radio elements in a form-group.

You can group checkbox and radio elements on the same horizontal row by adding an inline attribute to the form-group element.

<x-form-group name="notification_channel" label="How do you want to receive your notifications?" inline>
    <x-form-checkbox name="notification_channel" value="mail" label="Mail" />
    <x-form-checkbox name="notification_channel" value="slack" label="Slack" />
</x-form-group>

Old input data

When a validation errors occurs and Laravel redirects you back, the form will be re-populated with the old input data. This old data will override any binding or default value.

Handling translations

This package supports spatie/laravel-translatable out of the box. You can add a language attribute to your element.

<x-form-input name="title" language="en" :bind="$book" />

This will result in the following HTML:

<input name="title[en]" value="Laravel: Up & Running" />

To get the validation errors from the session, the name of the input will be mapped to a dot notation like title.en. This is how old input data is handled as well.

Customize the blade views

Publish the configuration file and Blade views with the following command:

php artisan vendor:publish --provider="ProtoneMedia\LaravelFormComponents\Support\ServiceProvider"

You can find the Blade views in the resources/views/vendor/form-components folder. Optionally, in the form-components.php configuration file, you can change the location of the Blade view per component.

Component logic

You can bind your own component classes to any of the elements. In the form-components.php configuration file, you can change the class per component. As the logic for the components is quite complex, it is strongly recommended to duplicate the default component as a starting point and start editing. You'll find the default component classes in the vendor/protonemedia/laravel-form-components/src/Components folder.

Prefix the components

You can define a prefix in the form-components.php configuration file.

return [
    'prefix' => 'tailwind',
];

Now all components can be referenced like so:

<x-tailwind-form>
    <x-tailwind-form-input name="company_name" />
</x-tailwind-form>

Error messages

By the default, the errors messages are positioned under the element. To show these messages, we created a FormErrors component. You can manually use this component as well.

<x-form>
    <x-form-input name="company_name" :show-errors="false" />

    <!-- other elements -->

    <x-form-errors name="company_name" />
</x-form>

Submit button

The label defaults to Submit but you can use the slot to provide your own content.

<x-form-submit>
    <span class="text-green-500">Send</span>
</x-form-submit>

Bootstrap 4

You can switch to Bootstrap 4 by updating the framework setting in the form-components.php configuration file.

return [
    'framework' => 'bootstrap-4',
];

There is a little bit of styling added to the form.blade.php view to add support for inline form groups. If you want to change it or remove it, publish the assets and update the view file.

Input prepend and append

In addition to the Tailwind features, there is also support for input groups. Use the prepend and append slots to provide the contents.

<x-form-input name="username" label="Username">
    @slot('prepend')
        <span>@</span>
    @endslot
</x-form-input>

<x-form-input name="subdomain" label="Subdomain">
    @slot('append')
        <span>.protone.media</span>
    @endslot
</x-form-input>

Help text

You can add block-level help text to any element by using the help slot.

<x-form-input name="username" label="Username">
    @slot('help')
        <small class="form-text text-muted">
            Your username must be 8-20 characters long.
        </small>
    @endslot
</x-form-input>

Testing

composer test

Changelog

Please see CHANGELOG for more information about what has changed recently.

Contributing

Please see CONTRIBUTING for details.

Other Laravel packages

Security

If you discover any security related issues, please email pascal@protone.media instead of using the issue tracker.

Credits

License

The MIT License (MIT). Please see License File for more information.

Treeware

This package is Treeware. If you use it in production, then we ask that you buy the world a tree to thank us for our work. By contributing to the Treeware forest you’ll be creating employment for local families and restoring wildlife habitats.