WPML-按个别语言或所有语言过滤

我在一个多语言网站上有一个基于两个参数的查询（使用WPML）。为了简化，假设我的过滤器之一是要检索的帖子的语言：英语、法语或所有语言。英语和法语都很好，但我不能让“所有语言”过滤器工作。

这是我的代码：

<?php
// First I get the "lang" Get value
$langGet = get_query_var(\'lang\', ICL_LANGUAGE_CODE);
?>

/* Then  have my form to filter posts */
<form action="<?php echo get_permalink( get_the_ID() ); ?>" method="get">
    <label for="lang"><?php _e( \'Languages\', \'mytextdomain\' ); ?></label>
    <?php
    $languages = apply_filters( \'wpml_active_languages\', NULL );
    if($languages) { ?>
        <select name="lang">
            <?php foreach($languages as $language) : ?>
                <option value="<?php echo $language[\'language_code\']; ?>" <?php echo ( $langGet == $language[\'language_code\'] ) ? \'selected\' : \'\'; ?>><?php echo $language[\'translated_name\']; ?></option>
            <?php endforeach; ?>
            <option value="all" <?php echo ( $langGet == \'all\' ) ? \'selected\' : \'\'; ?>><?php _e(\'All languages\', \'mytextdomain\'); ?></option>
        </select>
    <?php } ?>
    <input type="submit" value="<?php _e( \'Filter projects\', \'mytextdomain\' ); ?>">
</form>

<?php
// Then I set up the switch for current language
if($langGet != \'all\') {
    global $sitepress;
    $current_lang = $sitepress->get_current_language();
    $sitepress->switch_lang($langGet, true);
}

// Then I define my query
// Here is the line that is supposed to show all languages but it\'s not working.
$filters = ( $langGet == \'all\' ) ? true : false;

$taxId = apply_filters( \'wpml_object_id\', 755, \'project_category\' );

$paged = (get_query_var(\'paged\')) ? absint(get_query_var(\'paged\')) : 1;

$args = array(
    \'posts_per_page\' => 16,
    \'post_type\' => \'projects\',
    \'tax_query\' => array(
        array(
            \'taxonomy\' => \'project_category\',
            \'field\' => \'term_id\',
            \'terms\' => $taxId,
        )
    ),
    \'orderby\'   => \'date\',
    \'order\' => \'ASC\',
    \'paged\' => $paged,
    \'suppress_filters\' => $filters
);
$projects = new WP_Query($args);

但这并不是显示所有语言。此外，我注意到#038;lang=all 当我在第2页时，添加到url的末尾。

有人能帮我吗？谢谢

<?php // I check the lang query var if it\'s empty we\'ll display all languages $langGet = get_query_var(\'lang\', \'all\'); ?> /* Then have my form to filter posts */ <form action="<?php echo get_permalink( get_the_ID() ); ?>" method="get"> <label for="lang"><?php _e( \'Languages\', \'mytextdomain\' ); ?></label> <?php $languages = apply_filters( \'wpml_active_languages\', NULL ); if($languages) { ?> <select name="lang"> <?php foreach($languages as $language) : ?> <option value="<?php echo $language[\'language_code\']; ?>" <?php echo ( $langGet == $language[\'language_code\'] ) ? \'selected\' : \'\'; ?>><?php echo $language[\'translated_name\']; ?></option> <?php endforeach; ?> <option value="all" <?php echo ( $langGet == \'all\' ) ? \'selected\' : \'\'; ?>><?php _e(\'All languages\', \'mytextdomain\'); ?></option> </select> <?php } ?> <input type="submit" value="<?php _e( \'Filter projects\', \'mytextdomain\' ); ?>"> </form> <?php // Then I set up the switch for current language if( $langGet != \'all\' ) { global $sitepress; $current_lang = $sitepress->get_current_language(); $sitepress->switch_lang($langGet, true); $taxTerms = array( apply_filters( \'wpml_object_id\', 755, \'project_category\' ) ); $filters = false; } else { // If we want to display all languages we have to remove filters global $sitepress; remove_filter( \'get_terms_args\', array( $sitepress, \'get_terms_args_filter\' ), 10 ); remove_filter( \'get_term\', array( $sitepress, \'get_term_adjust_id\' ), 1 ); remove_filter( \'terms_clauses\', array( $sitepress, \'terms_clauses\' ), 10 ); $taxTerms = array( 755, 776, 777, 778 ); $filters = true; } $paged = (get_query_var(\'paged\')) ? absint(get_query_var(\'paged\')) : 1; // Then we set the query $args = array( \'posts_per_page\' => $postsperpage, \'post_type\' => \'projects\', \'tax_query\' => array( array( \'taxonomy\' => \'project_category\', \'field\' => \'term_id\', \'terms\' => $taxTerms ) ), \'orderby\' => $orderby, \'order\' => $order, \'meta_key\' => $metakey, \'paged\' => $paged, \'suppress_filters\' => $filters ); $projects = new WP_Query($args);

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