Laravel 7 Livewire Add or Remove Dynamically Input Fields

August 10, 2020 XpertPhp Comments 0 Comment

Today, In this article we explain to you to how to add or remove dynamically input fields using livewire in laravel 7.

So you can follow the below steps for Add or Remove Dynamically Input Fields using livewire in laravel 7.

Overview

Step 1: Install Laravel 7

Step 2: Setting Database Configuration

Step 3: Create Table using migration

Step 4: Install Livewire

Step 5: Create Component

Step 6: Create Route

Step 7: Create a Model

Step 8: Create Blade Files

Step 9: Run Our Laravel Application

Laravel Livewire Dynamically Add or Remove input fields

Step 1: Install Laravel 7

We are going to install laravel 7, so first open the command prompt or terminal and go to xampp htdocs folder directory using the command prompt. after then run the below command.

composer create-project --prefer-dist laravel/laravel laravel7_livewire_example

1	composer create-project --prefer-dist laravel/laravel laravel7_livewire_example

Step 2: Setting Database Configuration

After complete installation of laravel. we have to database configuration. now we will open the .env file and change the database name, username, password in the .env file. See below changes in a .env file.

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=Enter_Your_Database_Name(laravel7_livewire_example)
DB_USERNAME=Enter_Your_Database_Username(root)
DB_PASSWORD=Enter_Your_Database_Password(root)

DB_CONNECTION=mysql

DB_HOST=127.0.0.1

DB_PORT=3306

DB_DATABASE=Enter_Your_Database_Name(laravel7_livewire_example)

DB_USERNAME=Enter_Your_Database_Username(root)

DB_PASSWORD=Enter_Your_Database_Password(root)

Step 3: Create Table using migration

Now, We need to create a migration. so we will below command using create the students table migration.

php artisan make:migration create_students_table --create=students

1	php artisan make:migration create_students_table --create=students

After complete migration. we need below changes in the database/migrations/create_students_table file.

<?php

use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateStudentsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('students', function (Blueprint $table) {
            $table->bigIncrements('id');
            $table->string('first_name');
            $table->string('last_name');
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('students');
    }
}
?>

<?php

use Illuminate\Support\Facades\Schema;

use Illuminate\Database\Schema\Blueprint;

use Illuminate\Database\Migrations\Migration;

class CreateStudentsTable extends Migration

{

/**

* Run the migrations.

* @return void

public function up()

{

Schema::create('students', function (Blueprint $table) {

$table->bigIncrements('id');

$table->string('first_name');

$table->string('last_name');

$table->timestamps();

});

}

/**

* Reverse the migrations.

* @return void

public function down()

{

Schema::dropIfExists('students');

}

Run the below command. after the changes above file.

php artisan migrate

1	php artisan migrate

Step 4: Install Livewire
Now, We will install a livewire package using the below command.

composer require livewire/livewire

1	composer require livewire/livewire

Step 5: Create Component
Here below command help to create the component.

php artisan make:livewire students

1	php artisan make:livewire students

app/Http/Livewire/Students.php

<?php

namespace App\Http\Livewire;

use Livewire\Component;
use App\Student;
use App\Http\Livewire\Field;
use Illuminate\Http\Request;

class Students extends Component
{
    public $students, $first_name, $last_name, $student_id;
    public $updateMode = false;
    public $inputs = [];
    public $i = 1;

    public function add($i)
    {
        $i = $i + 1;
        $this->i = $i;
        array_push($this->inputs ,$i);
    }

    public function remove($i)
    {
        unset($this->inputs[$i]);
    }

    public function render()
    {
        $this->students = Student::all();
        return view('livewire.students');
    }

    private function resetInputFields(){
        $this->first_name = '';
        $this->last_name = '';
    }

    public function store()
    {
        $validatedDate = $this->validate([
                'first_name.0' => 'required',
                'last_name.0' => 'required',
                'first_name.*' => 'required',
                'last_name.*' => 'required',
            ],
            [
                'first_name.0.required' => 'First name field is required',
                'last_name.0.required' => 'Last name field is required',
                'first_name.*.required' => 'First name field is required',
                'last_name.*.required' => 'Last name field is required',
            ]
        );

        foreach ($this->first_name as $key => $value) {
            Student::create(['first_name' => $this->first_name[$key], 'last_name' => $this->last_name[$key]]);
        }

        $this->inputs = [];

        $this->resetInputFields();

        session()->flash('message', 'Students Created Successfully.');
    }
}
?>

<?php

namespace App\Http\Livewire;

use Livewire\Component;

use App\Student;

use App\Http\Livewire\Field;

use Illuminate\Http\Request;

class Students extends Component

{

public $students, $first_name, $last_name, $student_id;

public $updateMode = false;

public $inputs = [];

public $i = 1;

public function add($i)

{

$i = $i + 1;

$this->i = $i;

array_push($this->inputs ,$i);

}

public function remove($i)

{

unset($this->inputs[$i]);

}

public function render()

{

$this->students = Student::all();

return view('livewire.students');

}

private function resetInputFields(){

$this->first_name = '';

$this->last_name = '';

}

public function store()

{

$validatedDate = $this->validate([

'first_name.0' => 'required',

'last_name.0' => 'required',

'first_name.*' => 'required',

'last_name.*' => 'required',

[

'first_name.0.required' => 'First name field is required',

'last_name.0.required' => 'Last name field is required',

'first_name.*.required' => 'First name field is required',

'last_name.*.required' => 'Last name field is required',

]

);

foreach ($this->first_name as $key => $value) {

Student::create(['first_name' => $this->first_name[$key], 'last_name' => $this->last_name[$key]]);

}

$this->inputs = [];

$this->resetInputFields();

session()->flash('message', 'Students Created Successfully.');

}

Step 6: Create Route
Add the following route code in the “routes/web.php” file.

Route::view('students','livewire.home');

1	Route::view('students','livewire.home');

Step 7: Create a Model

Here below command help to create the model.

php artisan make:model Student

1	php artisan make:model Student

Student.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;



class Student extends Model
{
    protected $fillable = [
        'first_name','last_name'
    ];
}

?>

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Student extends Model

{

protected $fillable = [

'first_name','last_name'

];

}

Step 8: Create Blade Files

So finally, first we will open the home.blade.php and students.blade.php files and after then paste the following code.

resources/views/livewire/home.blade.php

<!DOCTYPE html>
<html>
<head>
    <title>Laravel 7 Livewire Add or Remove Dynamically Input Fields - XpertPhp</title>
    <script src="{{ asset('js/app.js') }}" defer></script>
    <link href="{{ asset('css/app.css') }}" rel="stylesheet">
    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
    @livewireStyles
</head>
<body>
    <div class="container">
        <div class="row mt-5 justify-content-center">
            <div class="mt-5 col-md-8">
                <div class="card">
                    <div class="card-header bg-success text-white"><h5 style="font-size: 19px;">Laravel 7 Livewire Add or Remove Dynamically Input Fields - XpertPhp</h5></div>
                    <div class="card-body">
                        @if (session()->has('message'))
                            <div class="alert alert-success">
                                {{ session('message') }}
                            </div>
                        @endif
                        @livewire('students')
                    </div>
                </div>
            </div>
        </div>
    </div>
    @livewireScripts
</script>
</body>
</html>

<!DOCTYPE html>

<html>

<head>

<title>Laravel 7 Livewire Add or Remove Dynamically Input Fields - XpertPhp</title>

@livewireStyles

</head>

<body>

<div class="card-header bg-success text-white"><h5 style="font-size: 19px;">Laravel 7 Livewire Add or Remove Dynamically Input Fields - XpertPhp</h5></div>

@if (session()->has('message'))

</div>

@endif

@livewire('students')

</div>

@livewireScripts

</script>

</body>

</html>

resources/views/livewire/students.blade.php

<div>
    @if (session()->has('message'))
        <div class="alert alert-success">
          {{ session('message') }}
        </div>
    @endif
    <form>
        <div class=" add-input">
            <div class="row">
                <div class="col-md-5">
                    <div class="form-group">
                        <input type="text" class="form-control" placeholder="Enter First Name" wire:model="first_name.0">
                        @error('first_name.0') <span class="text-danger error">{{ $message }}</span>@enderror
                    </div>
                </div>
                <div class="col-md-5">
                    <div class="form-group">
                        <input type="text" class="form-control" wire:model="last_name.0" placeholder="Enter Last Name">
                        @error('last_name.0') <span class="text-danger error">{{ $message }}</span>@enderror
                    </div>
                </div>
                <div class="col-md-2">
                    <button class="btn text-white btn-info btn-sm" wire:click.prevent="add({{$i}})">Add</button>
                </div>
            </div>
        </div>

        @foreach($inputs as $key => $value)
            <div class=" add-input">
                <div class="row">
                    <div class="col-md-5">
                        <div class="form-group">
                            <input type="text" class="form-control" placeholder="Enter First Name" wire:model="first_name.{{ $value }}">
                            @error('first_name.'.$value) <span class="text-danger error">{{ $message }}</span>@enderror
                        </div>
                    </div>
                    <div class="col-md-5">
                        <div class="form-group">
                            <input type="text" class="form-control" wire:model="last_name.{{ $value }}" placeholder="Enter Last Name">
                            @error('last_name.'.$value) <span class="text-danger error">{{ $message }}</span>@enderror
                        </div>
                    </div>
                    <div class="col-md-2">
                        <button class="btn btn-danger btn-sm" wire:click.prevent="remove({{$key}})">remove</button>
                    </div>
                </div>
            </div>
        @endforeach
        <div class="row">
            <div class="col-md-12">
                <button type="button" wire:click.prevent="store()" class="btn btn-success btn-sm">Save</button>
            </div>
        </div>
    </form>
</div>

<div>

@if (session()->has('message'))

</div>

@endif

<form>

@error('first_name.0') <span class="text-danger error">{{ $message }}</span>@enderror

</div>

@error('last_name.0') <span class="text-danger error">{{ $message }}</span>@enderror

</div>

</div>

@foreach($inputs as $key => $value)

@error('first_name.'.$value) <span class="text-danger error">{{ $message }}</span>@enderror

</div>

@error('last_name.'.$value) <span class="text-danger error">{{ $message }}</span>@enderror

</div>

<button class="btn btn-danger btn-sm" wire:click.prevent="remove({{$key}})">remove</button>

</div>

@endforeach

</div>

</form>

</div>

resources/views/livewire/create.blade.php

<form>
    <div class="form-group">
        <label for="first_name">First Name</label>
        <input type="text" class="form-control" id="first_name" placeholder="Enter First Name" wire:model="first_name">
        @error('first_name') <span class="text-danger">{{ $message }}</span>@enderror
    </div>
	<div class="form-group">
        <label for="last_name">Last Name</label>
        <input type="text" class="form-control" id="last_name" placeholder="Enter Last Name" wire:model="last_name">
        @error('last_name') <span class="text-danger">{{ $message }}</span>@enderror
    </div>
    <div class="form-group">
        <label for="address">Address</label>
	<textarea class="form-control" id="address" name="address" rows="10" placeholder="Enter Address" wire:model="address"></textarea>
        @error('address') <span class="text-danger">{{ $message }}</span>@enderror
    </div>
    <button wire:click.prevent="store()" class="btn btn-success">Save</button>
</form>

<form>

<label for="first_name">First Name</label>

@error('first_name') <span class="text-danger">{{ $message }}</span>@enderror

</div>

@error('last_name') <span class="text-danger">{{ $message }}</span>@enderror

</div>

<label for="address">Address</label>

@error('address') <span class="text-danger">{{ $message }}</span>@enderror

</div>

</form>

resources/views/livewire/update.blade.php

<form>
    <div class="form-group">
	<input type="hidden" wire:model="student_id">
        <label for="first_name">First Name</label>
        <input type="text" class="form-control" id="first_name" placeholder="Enter First Name" wire:model="first_name">
        @error('first_name') <span class="text-danger">{{ $message }}</span>@enderror
    </div>
	<div class="form-group">
        <label for="last_name">Last Name</label>
        <input type="text" class="form-control" id="last_name" placeholder="Enter Last Name" wire:model="last_name">
        @error('last_name') <span class="text-danger">{{ $message }}</span>@enderror
    </div>
    <div class="form-group">
        <label for="address">Address</label>
	<textarea class="form-control" id="address" name="address" rows="10" placeholder="Enter Address" wire:model="address"></textarea>
        @error('address') <span class="text-danger">{{ $message }}</span>@enderror
    </div>
    <button wire:click.prevent="update()" class="btn btn-dark">Update</button>
    <button wire:click.prevent="cancel()" class="btn btn-danger">Cancel</button>
</form>