File functions/continents.php

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<?php

/**
 * Functies m.b.t. continenten
 *
 * @copyright 2019 SIW Internationale Vrijwilligersprojecten
 */

use SIW\Data\Continent;

/**
 * Haal gegevens van continenten op
 * 
 * @param string $return objects|array
 * 
 * @return Continent[]|array
 * 
 * @since     3.0.0
 */
function siw_get_continents( string $return = 'objects' ) { 

    $continents = wp_cache_get( "continents_{$return}", 'siw_continents' );
    if ( false !== $continents ) {
        return $continents;
    }
    //Data ophalen TODO: sorteren ?
    $data = siw_get_data( 'continents' );

    //Zet index van array
    $data = array_column( $data , null, 'slug' );

    //Creëer objecten
    $continents = array_map(
        function( $item ) {
            return new Continent( $item );
        },
        $data
    );

    if ( 'array' == $return ) {
        $continents = array_map(
            function( $continent ) {
                return $continent->get_name();
            },
            $continents
        );
    }

    wp_cache_set( "continents_{$return}", $continents, 'siw_continents' );
    
    return $continents;
}

/**
 * Haal gegevens van continent op (op basis van slug)
 * 
 * @since     3.0.0
 *
 * @param string $slug
 * @return Continent
 */
function siw_get_continent( string $slug ) {
    $continents = siw_get_continents();
    return $continents[ $slug ] ?? false;
}

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