How to implement batch deletion function in laravel

As web applications become more and more popular, data management has become an essential technology. However, managing large amounts of data can be a tedious task, especially when dealing with deletions. Fortunately, the Laravel framework provides a simple yet effective way to handle operations for bulk deletion of data. In this article, we will learn how to implement batch deletion in Laravel, making you more flexible and efficient when processing large amounts of data.

Step 1: Set up the model

Before we begin, we need to make sure we have a model class for database table management. For example, let's create an admin model class to manage the admins table. We can use the following command to generate the model:

php artisan make:model Admin

This will create an Admin.php file in the app directory that contains the model classes for managing the admins table.

Step 2: Add Delete Method

Now, let’s add a method to delete our admin. Add the following code in our admin model class:

public static function deleteByIds(array $ids)
{
    return self::whereIn('id', $ids)->delete();
}

In this method, we use Laravel’s whereIn() method to find records that match the incoming ID array. Finally, we use the delete() method to delete matching records.

Step 3: Create the Controller

Now, we need to create a controller class to handle our data deletion request. We can use the following command to generate this controller:

php artisan make:controller AdminController --resource

This will create an AdminController.php file in the app/Http/Controllers directory, which contains a resource controller class.

Step 4: Define Routes

Next, we need to define routes for bulk deletion of administrators. Add the following code to our web.php file:

Route::delete('/admins/delete', 'AdminController@delete')->name('admins.delete');

This will create a route to handle requests made by the delete() method in our AdminController class. We'll also name the route admins.delete so we can reference it later in the view.

Step 5: Create a view

Finally, we need to create a view that displays all available administrator records and allows the user to select the records that need to be deleted. We can use the following code to create this view:

@extends('layouts.app')

@section('content')
    <form action="{{route(&#39;admins.delete&#39;)}}" method="POST">
        @csrf
        @method('delete')

        <button type="submit" class="btn btn-primary mb-2">Delete Selected</button>

        <table class="table">
            <thead>
            <tr>
                <th scope="col">#</th>
                <th scope="col">Name</th>
                <th scope="col">Email</th>
                <th scope="col">Actions</th>
            </tr>
            </thead>
            <tbody>
            @foreach ($admins as $admin)
                <tr>
                    <th scope="row">{{ $admin->id }}</th>
                    <td>{{ $admin->name }}</td>
                    <td>{{ $admin->email }}</td>
                    <td>
                        <input type="checkbox" name="ids[]" value="{{ $admin->id }}">
                    </td>
                </tr>
            @endforeach
            </tbody>
        </table>
    </form>
@endsection

In this view, we create a table that contains all the administrator records. We also added a checkbox that allows the user to select records to delete, and a submit button that calls the delete route we defined in the previous step. This view should be saved in the resources/views/admins/index.blade.php file.

Step 6: Handle Delete Requests

Now that we have the routing and views set up, we need to add a method to the controller class to handle batch delete requests:

public function delete(Request $request)
{
    $ids = $request->ids;
    Admin::deleteByIds($ids);

    return redirect()->back()->with('success', 'Selected admins have been deleted!');
}

In this method, we get all the selected record IDs and pass them to the deleteByIds() method we defined in the model class. Finally, we redirect back to our view and display a success message.

Summary

In this article, we have learned how to use the Laravel framework to delete database records in batches. We created a model class and controller class to manage the data, defined a route to handle delete requests, and created a view to display the data and handle user input. Now you have a powerful tool to manage your web application's data, making you more flexible and efficient.

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