README

Criteria: PHP package for managing Criteria Pattern

Criteria is a framework-agnostic PHP package that allows managing criteria pattern, streamlining data filtering, sorting, and pagination with ease. By Integrating Criteria into your PHP applications developers will easily adapt to evolving filtering requirements without the need for extensive code modifications.

Installation

Install Criteria using composer require:

composer require hibit-dev/criteria

Usage

A specific criteria must be created for each use case. It will extend the shared domain logic contained in the abstract criteria implementation. As an illustrative example, we generated UserCriteria that will help us to filter based on name, email, both, or neither of them. Additionally, paginating and sorting the results.

use Hibit\Criteria;
use Hibit\CriteriaPagination;
 
final class UserSearchCriteria extends Criteria
{
    public const PER_PAGE = 10;
 
    private ?string $email = null;
    private ?string $name = null;
 
    public static function create(
        string $email = null,
        string $name = null
    ): UserSearchCriteria {
        $criteria = new self(CriteriaPagination::create(self::PER_PAGE));
 
        if (!empty($email)) {
            $criteria->email = $email;
        }
 
        if (!empty($name)) {
            $criteria->name = $name;
        }
 
        return $criteria;
    }
 
    public function email(): ?string
    {
        return $this->email;
    }
 
    public function name(): ?string
    {
        return $this->name;
    }
}

Assuming the user repository already exists, the criteria usage will look like as following

use Hibit\CriteriaPagination;
use Hibit\CriteriaSort;
use Hibit\CriteriaSortDirection;
 
class CriteriaTestClass
{
    public function __invoke(UserRepository $userRepository): array
    {
        // Pagination criteria: limit=10 offset=0
        $pagination = CriteriaPagination::create(10, 0);
 
        // Sorting criteria: created_at ASC
        $sorting = CriteriaSort::create('created_at', CriteriaSortDirection::ASC);
 
        // Filter criteria: name=John
        $userSearchCriteria = UserSearchCriteria::create(null, 'John');
 
        $userSearchCriteria->paginateBy($pagination)->sortBy($sorting);
 
        return $userRepository->searchByCriteria($userSearchCriteria);
    }
}

At the end, the criteria object is passed to the repository and applied when building the query to retrieve data. Following methods will be accessible within the repository's search function, ensuring the accurate filtering of results.

// Criteria filters
$userCriteria->email();
$userCriteria->name();
 
// Criteria pagination
$userCriteria->pagination()?->limit()->value();
$userCriteria->pagination()?->offset()->value();
 
// Criteria sorting
$userCriteria->sort()?->field()->value();
$userCriteria->sort()?->field()->value();

Note that all values can be nullable when constructing the query within the repository.

Documentation

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You'll find detailed instructions and comprehensive documentation about this repository on:

Criteria: PHP package for managing Criteria Pattern

Security

If you discover any security related issues, please email security@hibit.dev instead of using the issue tracker.

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License

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

hibit-dev / criteria

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