+global\PodsAPI::get_current_language()

Complexity

Conditions

53

Size

Total Lines	203
Code Lines	68

Duplication

Lines	73
Ratio	35.96 %

Importance

Changes	6
Bugs	0	Features	1

<?php
	public static function get_current_language() {

		/**
		 * @var $sitepress                    SitePress object
		 * @var $icl_adjust_id_url_filter_off boolean
		 * @var $polylang                     object
		 */
		global $sitepress, $icl_adjust_id_url_filter_off, $polylang;

Use of global functionality is not recommended; it makes your code harder to test, and less reusable.

		$lang_data        = false;
		$translator       = false;
		$current_language = false;

		// Multilingual support
		if ( is_object( $sitepress ) && ! $icl_adjust_id_url_filter_off && defined( 'ICL_LANGUAGE_CODE' ) ) {
			// WPML support
			$translator = 'WPML';

			// Get the global current language (if set)
			$current_language = ( ICL_LANGUAGE_CODE != 'all' ) ? ICL_LANGUAGE_CODE : '';

		} elseif ( ( function_exists( 'PLL' ) || is_object( $polylang ) ) && function_exists( 'pll_current_language' ) ) {
			// Polylang support
			$translator = 'PLL';

			// Get the global current language (if set)
			$current_language = pll_current_language( 'slug' );
		}

		/**
		 * Admin functions that overwrite the current language
		 * 
		 * @since 2.6.6
		 */
		if ( is_admin() && ! empty( $translator ) ) {
			if ( $translator == 'PLL' ) {
				/**
				 * Polylang support
				 * Get the current user's perferred language.
				 * This is a user meta setting that will overwrite the language returned from pll_current_language()
				 * @see polylang/admin/admin-base.php -> init_user()
				 */
				$current_language = get_user_meta( get_current_user_id(), 'pll_filter_content', true );
			}

			// Get current language based on the object language if available
			if ( function_exists( 'get_current_screen' ) ) {
				$current_screen = get_current_screen();

				/**
				 * Overwrite the current language if needed for post types
				 */
				if ( isset( $current_screen->base ) && ( $current_screen->base == 'post' || $current_screen->base == 'edit' ) ) {
					if ( ! empty( $_GET['post'] ) ) {
						/**
						 * WPML support
						 * In WPML the current language is always set to default on an edit screen
						 * We need to overwrite this when the current object is not-translatable to enable relationships with different languages
						 */
						if (   $translator == 'WPML' 
							&& method_exists( $sitepress, 'is_translated_post_type') 
							&& ! $sitepress->is_translated_post_type( get_post_type( $_GET['post'] ) ) 
						) {
							// Overwrite the current language to nothing if this is a NOT-translatable post_type
							$current_language = '';
						}

						/**
						 * Polylang support (1.5.4+)
						 * In polylang the preferred language could be anything. 
						 * We only want the related objects if they are not translatable OR the same language as the current object
						 */
						if (   $translator == 'PLL' 
							&& function_exists( 'pll_get_post_language' ) 
							&& pll_is_translated_post_type( get_post_type( $_GET['post'] ) ) 
						) {
							// Overwrite the current language if this is a translateable post_type
							$current_language = pll_get_post_language( (int) $_GET['post'] );
						}
					}

					/**
					 * Polylang support (1.0.1+)
					 * In polylang the preferred language could be anything. 
					 * When we're adding a new object and language is set we only want the related objects if they are not translatable OR the same language
					 */
					if (   $translator == 'PLL' 
						&& ! empty( $_GET['new_lang'] ) 
						&& ! empty( $_GET['post_type'] ) 
						&& pll_is_translated_post_type( sanitize_text_field( $_GET['post_type'] ) ) 
					) {
						$current_language = $_GET['new_lang'];
					}

				/**
				 * Overwrite the current language if needed for taxonomies
				 */
				} elseif ( isset( $current_screen->base ) && ( $current_screen->base == 'term' || $current_screen->base == 'edit-tags' ) ) {
					// @todo MAYBE: Similar function like get_post_type for taxonomies so we don't need to check for $_GET['taxonomy']
					if ( ! empty( $_GET['taxonomy'] ) ) {
						/**
						 * WPML support
						 * In WPML the current language is always set to default on an edit screen
						 * We need to overwrite this when the current object is not-translatable to enable relationships with different languages
						 */
						if (   $translator == 'WPML' 
							&& method_exists( $sitepress, 'is_translated_taxonomy') 
							&& ! $sitepress->is_translated_taxonomy( $_GET['taxonomy'] ) 
						) {
							// Overwrite the current language to nothing if this is a NOT-translatable taxonomy
							$current_language = '';
						}

						/**
						 * Polylang support (1.5.4+)
						 * In polylang the preferred language could be anything. 
						 * We only want the related objects if they are not translatable OR the same language as the current object
						 */
						if (   $translator == 'PLL' 
							&& ! empty( $_GET['tag_ID'] ) 
							&& function_exists( 'pll_get_term_language' ) 
							&& pll_is_translated_taxonomy( sanitize_text_field( $_GET['taxonomy'] ) ) 
						) {
							// Overwrite the current language if this is a translatable taxonomy
							$current_language = pll_get_term_language( (int) $_GET['tag_ID'] );
						}
					}

					/**
					 * Polylang support (1.0.1+)
					 * In polylang the preferred language could be anything. 
					 * When we're adding a new object and language is set we only want the related objects if they are not translatable OR the same language
					 */
					if (   $translator == 'PLL' 
						&& ! empty( $_GET['new_lang'] ) 
						&& ! empty( $_GET['taxonomy'] ) 
						&& pll_is_translated_taxonomy( sanitize_text_field( $_GET['taxonomy'] ) ) 
					) {
						$current_language = $_GET['new_lang'];
					}
				}
			}
		}

		$current_language = pods_sanitize( sanitize_text_field( $current_language ) );

		if ( ! empty( $current_language ) ) {
			// We need to return language data
			$lang_data = array(
				'language' => $current_language,
				't_id'     => 0,
				'tt_id'    => 0,
				'term'     => null,
			);

			/**
			 * Polylang support
			 * Get the language taxonomy object for the current language
			 */
			if ( $translator == 'PLL' ) {
				$current_language_t = false;

				// Get the language term object
				if ( function_exists( 'PLL' ) && isset( PLL()->model ) && method_exists( PLL()->model, 'get_language' ) ) {
					// Polylang 1.8 and newer
					$current_language_t = PLL()->model->get_language( $current_language );
				} elseif ( is_object( $polylang ) && isset( $polylang->model ) && method_exists( $polylang->model, 'get_language' ) ) {
					// Polylang 1.2 - 1.7.x
					$current_language_t = $polylang->model->get_language( $current_language );
				} elseif ( is_object( $polylang ) && method_exists( $polylang, 'get_language' ) ) {
					// Polylang 1.1.x and older
					$current_language_t = $polylang->get_language( $current_language );
				}

				// If the language object exists, add it!
				if ( $current_language_t && ! empty( $current_language_t->term_id ) ) {
					$lang_data['t_id']  = (int) $current_language_t->term_id;
					$lang_data['tt_id'] = (int) $current_language_t->term_taxonomy_id;
					$lang_data['term']  = $current_language_t;
				}
			}
		}

		/**
		 * Override language data used by Pods.
		 *
		 * @since 2.6.6
		 *
		 * @param array|false    $lang_data {
		 *      Language data
		 *
		 *      @type string       $language  Language slug
		 *      @type int          $t_id      Language term_id
		 *      @type int          $tt_id     Language term_taxonomy_id
		 *      @type WP_Term      $term      Language term object
		 * }
		 * @param string|boolean $translator Language plugin used
		 */
		$lang_data = apply_filters( 'pods_get_current_language', $lang_data, $translator );

		return $lang_data;

	}