Laravel 10 Livewire is a powerful tool that simplifies building dynamic web applications. In this tutorial, we will show you how to add or remove dynamically input fields using Livewire. This feature can be useful for forms where users can add or remove multiple items such as tags, categories, or images.
Prerequisites Before we start, ensure you have the following:
- Laravel 10 installed on your system.
- Basic understanding of Livewire.
Step 1: Create a New Laravel Project Firstly, create a new Laravel project by running the following command:
laravel new livewire-form
Step 2: Install Livewire Next, install Livewire via composer by running the following command:
composer require livewire/livewire
Step 3: Create a New Livewire Component Create a new Livewire component called Form by running the following command:
php artisan livewire:make Form
This command will create a new file called Form.php in the app/Http/Livewire directory.
Step 4: Update the Form Component In the Form.php file, we will add the following code to create a form that allows users to add or remove input fields:
use Livewire\Component;
class Form extends Component
{
public $inputs = [];
public function addInput()
{
$this->inputs[] = count($this->inputs) + 1;
}
public function removeInput($index)
{
unset($this->inputs[$index]);
$this->inputs = array_values($this->inputs);
}
public function render()
{
return view('livewire.form');
}
}
This is a PHP class that extends the Livewire\Component class. Livewire is a full-stack framework for Laravel that allows you to build dynamic interfaces using PHP. This particular class represents a form component that allows the user to add or remove inputs dynamically.
The class has three public methods:
addInput(): This method adds a new input to the$inputsarray. The input value is the count of the existing inputs plus 1.removeInput($index): This method removes an input from the$inputsarray at the given$index. It then re-indexes the array to ensure that the keys are continuous.render(): This method returns a view that will be rendered when the component is displayed in the browser. In this case, it returns the ‘livewire.form’ view.
The class has one public property:
$inputs: This property holds an array of input values that are displayed on the form.
When this component is used in a Livewire-powered view, it will display a form with a button to add new inputs and a button to remove existing inputs. When the user clicks the add button, a new input will be added to the form. When the user clicks the remove button, the corresponding input will be removed from the form.
The render() method in this component returns the ‘livewire.form’ view, which is a Blade template file that defines the markup for the form. This view can contain any HTML, CSS, or JavaScript needed to render the form.
In a typical Livewire-powered application, you would create a route to handle the form submission and define a controller method to process the form data. The Livewire component would then be included in the view where the form should be displayed.
In the code above, we have added three methods to the Form component:
$inputs– an array to store the input fields.addInput()– a method that adds a new input field to the$inputsarray.removeInput($index)– a method that removes an input field at the specified index from the$inputsarray.
Step 5: Create the Form View Next, create a new Blade template file called form.blade.php in the resources/views/livewire directory. Add the following code to the file:
<div>
@foreach($inputs as $key => $value)
<div>
<input type="text" name="name[]" placeholder="Enter your name" />
<button wire:click.prevent="removeInput({{ $key }})">-</button>
</div>
@endforeach
<button wire:click.prevent="addInput()">+</button>
</div>
This looks like a code snippet written in the Blade template syntax for the Laravel PHP framework. It creates a form with input fields for names and a button to add or remove input fields dynamically using Livewire, a library for reactive programming in Laravel.
The @foreach directive is used to iterate over an array of $inputs and generate a <div> element for each element in the array. Each <div> contains an <input> field with the name attribute set to an array name[], which means that all the input values will be submitted as an array when the form is submitted.
The wire:click.prevent directive is used to prevent the default behavior of the button when it is clicked and trigger a Livewire component method called removeInput or addInput. The $key variable is used to identify the input field in the array and is passed as a parameter to the removeInput method.
The addInput method adds a new input field to the $inputs array, and the removeInput method removes the input field with the corresponding $key from the array.
Overall, this code creates a dynamic form that allows users to add or remove input fields for names as needed.
In the code above, we have added a foreach loop to iterate over the $inputs array and render the input fields. We have also added a button to remove the input field at the specified index from the $inputs array.
Lastly, we have added a button to add a new input field to the $inputs array.
Step 6: Add the Form to a Route Finally, add the Form component to a route by updating the web.php file in the routes directory:
use App\Http\Livewire\Form;
Route::get('/form', Form::class);
In the code above, we have imported the Form component and added it to a route that displays the form.
Step 7: Test the Form Run the Laravel development server by running the following command:
php artisan serve
Visit http://localhost:8000/form to view the form. You should be able to add or remove input fields dynamically by clicking the + and - buttons respectively.
Conclusion
Conclusion In this tutorial, we have shown you how to add or remove dynamically input fields using Livewire in Laravel 10. By leveraging Livewire’s powerful features, we were able to build a dynamic form that can be used in a variety of scenarios. We hope you found this tutorial helpful and feel free to experiment with the code and modify it to fit your specific needs.
This Article Ideas has been taken from the following websites; which are following:
Laravel 9 Livewire Dynamically Add or Remove Input Fields Example
https://www.nicesnippets.com/blog/laravel-livewire-dynamically-add-or-remove-input-fields
https://morioh.com/p/ec7d9cba17eb
https://dev.to/jringeisen/how-to-create-dynamic-input-fields-with-laravel-livewire-14kn
Laravel Livewire Add or Remove Dynamically Input Fields
Laravel 7 Livewire Add or Remove Dynamically Input Fields – onlinecode
https://stackoverflow.com/questions/73692912/how-to-dynamically-add-input-fields-with-livewire
https://github.com/dexterladines/Laravel-Livewire-Add-or-Remove-Dynamically-Input-Fields-
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