Phprest Request Filter Service

Description

Request Filter Service which is able to filter your incoming request by:

• query
• sort
• limit
• offset

Components

There are 3 main component in filtering:

• Obtainer
• Parser
• Processor

Obtainer

Is the way as you get the filtering key and its data from the request.

E.g.: QueryInHeader Obtainer

Parser

Is the way how you analyze the obtained filter.

E.g.: CommaMinus Parser

Processor

Which is processing your parsed filter.

E.g.: Orm Processor

Installation

Install it through composer.

{
    "require": {
        "phprest/phprest-service-request-filter": "@stable"
    }
}

tip: you should browse the phprest/phprest-service-request-filter page to choose a stable version to use, avoid the @stable meta constraint.

Usage

Configuration

For the configuration you should check the Config class.

Registration

<?php
use Phprest\Service\RequestFilter;
# ...
/** @var \Phprest\Application $app */

$app->registerService(new RequestFilter\Service(), new RequestFilter\Config());
# ...

Reaching from a Controller

To reach your Service from a Controller you should use the Service's Getter Trait.

<?php namespace App\Module\Controller;

use Phprest\Service;

class Index extends \Phprest\Util\Controller
{
    use Service\RequestFilter\Getter;

    public function get(Request $request)
    {
        $this->serviceRequestFilter()->processQuery(...);
    }
}

Utils

Most of the Services in Phprest provides some utility mechanism (helper functions).

For the utilities you should check the Util class.

Example

With the Orm Processor.

<?php namespace App\Module\Controller;

use Phprest\Service;
use Doctrine\Common\Collections\Criteria;

class Index extends \Phprest\Util\Controller
{
    use Service\RequestFilter\Getter;
    use Service\RequestFilter\Util;

    public function getAll(Request $request)
    {
        $processor = new Service\RequestFilter\Processor\Orm(Criteria::create());
        
        try {
            $this->serviceRequestFilter()->processQuery($request, $processor);
            $this->serviceRequestFilter()->processSort($request, $processor);
        } catch (\Exception $e) {
            throw new Exception\BadRequest(0, [$e->getMessage()]);
        }
    }
}