Provides a Eloquent query builder for Laravel 5

This package allows you to build eloquent queries, based on request parameters. It greatly reduces the complexity of the queries and conditions, which will make your code cleaner.

Installation

composer require mohammad-fouladgar/eloquent-builder

Laravel 5.5 uses Package Auto-Discovery, so you are not required to add ServiceProvider manually.

Laravel 5.5+

If you don't use Auto-Discovery, add the ServiceProvider to the providers array in config/app.php file

Fouladgar\EloquentBuilder\ServiceProvider::class,

And add the facade to your config/app.php file

 "EloquentBuilder" => Fouladgar\EloquentBuilder\Facade::class,

Default Filters Namespace

The default namespace for all filters is App\EloquentFilters\ with the base name of the Model.

For example:

Suppose we have a User model with an AgeMoreThan filter.As a result, the namespace filter must be as follows:

App\EloquentFilters\User\AgeMoreThanFilter

With Config file

You can optionally publish the config file with:

php artisan vendor:publish --provider="Fouladgar\EloquentBuilder\ServiceProvider" --tag="config"

And set the namespace for your model filters which will reside in:

return [
    /*
     |--------------------------------------------------------------------------
     | Eloquent Filter Settings
     |--------------------------------------------------------------------------
     |
     | This is the namespace all you Eloquent Model Filters will reside
     |
     */
    'namespace' => 'App\\EloquentFilters\\',
];

Usage

Suppose we want to get the list of the users with the requested parameters as follows:

// http://yourhost.io/api/user/search?age_more_than=25&gender=male&has_published_post=true
[
    'age_more_than'  => '25',
    'gender'         => 'female',
    'has_published_post' => 'true',
]

In the legacy code the method written below was followed:

<?php

namespace App\Http\Controllers;

use App\User;
use Illuminate\Http\Request;

class UserController extends Controller
{
    public function index(Request $request)
    {
        $users = User::where('is_active', true);

        if ($request->has('age_more_than')) {
            $users->where('age', '>', $request->age_more_than);
        }

        if ($request->has('gender')) {
            $users->where('gender', $request->gender);
        }

        if ($request->has('has_published_post')) {
            $users->where(function ($query) use ($request) {
                $query->whereHas('posts', function ($query) use ($request) {
                    $query->where('is_published', $request->has_published_post);
                });
            });
        }

        return $users->get();
    }
}

But the new method with EloquentBuilder follows the steps below:

<?php

namespace App\Http\Controllers;

use App\User;
use EloquentBuilder;
use Illuminate\Http\Request;

class UserController extends Controller
{
    public function index(Request $request)
    {
        $users = EloquentBuilder::to(User::class, $request->all());

        return $users->get();
    }
}

Note: It's recommended validates the incoming requests before sending to filters.

Define a Filter

Writing a filter is simple. Define a class that implements the Fouladgar\EloquentBuilder\Support\Foundation\Contracts\Filter interface. This interface requires you to implement one method: apply. The apply method may add where constraints to the query as needed:

<?php

namespace App\EloquentFilters\User;

use Fouladgar\EloquentBuilder\Support\Foundation\Contracts\Filter;
use Illuminate\Database\Eloquent\Builder;

class AgeMoreThanFilter implements Filter
{
    /**
     * Apply the age condition to the query.
     *
     * @param Builder $builder
     * @param mixed   $value
     *
     * @return Builder
     */
    public function apply(Builder $builder, $value): Builder
    {
        return $builder->where('age', '>', $value);
    }
}

Work with existing queries

You may also want to work with existing queries. For example, consider the following code:

<?php

namespace App\Http\Controllers;

use App\User;
use EloquentBuilder;
use Illuminate\Http\Request;

class UserController extends Controller
{
    public function index(Request $request)
    {
        $query = User::where('is_active', true);
        $users = EloquentBuilder::to($query, $request->all())
            ->where('city', 'london')
            ->paginate();

        return $users;
    }
}

Use as Dependency Injection

Suppose you want use the EloquentBuilder as DependencyInjection in a Repository.

Let's have an example.We have a sample UserRepository as follows:

<?php

namespace App\Repositories;

use App\User;
use Fouladgar\EloquentBuilder\EloquentBuilder;

class UserRepository extends BaseRepository
{
    
    public function __construct(EloquentBuilder $eloquentBuilder)
    {
        $this->eloquentBuilder = $eloquentBuilder;
        $this->makeModel();
    }

    public function makeModel()
    {
        return $this->setModel($this->model());
    }
    
    public function setModel($model)
    {
        $this->model = app()->make($model);

        return $this;
    }
    
    public function model()
    {
        return User::class;
    }
    
    public function all($columns = ['*'])
    {
        return $this->model->get($columns);
    }

    // other methods ...

    public function filters(array $filters)
    {
        $this->model = $this->eloquentBuilder->to($this->model(), $filters);

        return $this;
    }
}

The filters method applies the requested filters to the query by using EloquentBuilder injected.

Injecting The Repository

Now,we can simply "type-hint" it in the constructor of our UserController:

<?php

namespace App\Http\Controllers;

use App\Repositories\UserRepository;
use Illuminate\Http\Request;

class UserController extends Controller
{

    protected $users;

    public function __construct(UserRepository $users)
    {
        $this->users = $users;
    }

    public function index(Request $request)
    {
        return $this->users->filters($request->all())->all();
    }
}

Testing

composer test

Contributing

Please see CONTRIBUTING for details.

Security

If you discover any security related issues, please email [email protected] instead of using the issue tracker.

License

Eloquent-Builder is released under the MIT License. See the bundled LICENSE file for details.

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