File async/request.php

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<?php

namespace SIW\Async;

/**
 * Uitbreiding van WP_Async_Request
 * 
 * 
 * @copyright 2019 SIW Internationale Vrijwilligersprojecten
 * @since     3.0.0
 */
abstract class Request extends \WP_Async_Request {
    
    /**
     * Prefix
     * 
     * @var string
     */
    protected $prefix = 'siw';

    /**
     * Variabelen voor process
     *
     * @var array
     */
    protected $variables = [];

    /**
     * {@inheritDoc}
     */
    protected function handle() {
        //Haal data op
        $this->get_data();

        //Afbreken als data niet compleet is
        if ( ! $this->is_data_complete() ) {
            return;
        }
        $this->process();
    }

    /**
     * Haalt data op uit post request (inclusief sanitizing)
     *
     * @return array
     */
    protected function get_data() {
        $data = [];
        foreach ( $this->variables as $variable => $settings ) {
            $data[ $variable ] = [
                'filter' => $this->get_filter( $settings['type'] ),
                'flags'  => $settings['array'] ? FILTER_REQUIRE_ARRAY : FILTER_REQUIRE_SCALAR,
            ];
        }
        $this->data = filter_input_array( INPUT_POST, $data );
    }

    /**
     * Controleert of data compleet is
     *
     * @return bool
     */
    protected function is_data_complete() {
        foreach ( $this->variables as $variable => $settings ) {
            if ( isset( $settings['required'] ) && $settings['required'] && empty( $this->data[ $variable ] ) ) {
                return false;
            }
        }
        return true;
    }

    /**
     * Geeft filter terug op basis van type
     *
     * @param string $type
     *
     * @return int
     */
    protected function get_filter( string $type ) {
        switch ( $type ) {
            case 'text':
                return FILTER_SANITIZE_STRING;
            case 'int':
                return FILTER_SANITIZE_NUMBER_INT;
            case 'float':
                return FILTER_SANITIZE_NUMBER_FLOAT;
            case 'email':
                return FILTER_SANITIZE_EMAIL;
            default:
                return FILTER_SANITIZE_STRING;
        }
    }

    /**
     * Functie om gegevens te verwerken
     */
    abstract protected function process();
}

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