first commit

wp-content/plugins/wpml-translation-management/classes/language/class-wpml-all-language-pairs.php

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+<?php
+
+class WPML_All_Language_Pairs {
+
+	public static function get( SitePress $sitepress ) {
+
+		$languages = array_keys( $sitepress->get_active_languages() );
+
+		$lang_pairs = array();
+
+		foreach ( $languages as $from_lang ) {
+			$lang_pairs[ $from_lang ] = array();
+			foreach ( $languages as $to_lang ) {
+				if ( $from_lang !== $to_lang ) {
+					$lang_pairs[ $from_lang ][] = $to_lang;
+				}
+			}
+		}
+
+		return $lang_pairs;
+	}
+}

wp-content/plugins/wpml-translation-management/classes/language/class-wpml-language-pair-records.php

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+<?php
+
+/**
+ * Class WPML_Language_Pair_Records
+ *
+ * Language pairs are stored as user meta as an array of the form
+ * array( $from_lang => array( $to_lang_1 => '1', $to_lang_2 => '1' )
+ */
+class WPML_Language_Pair_Records {
+
+	private $meta_key;
+
+	/** @var WPML_Language_Records $language_records */
+	private $language_records;
+
+	public function __construct( wpdb $wpdb, WPML_Language_Records $language_records ) {
+		$this->meta_key         = $wpdb->prefix . 'language_pairs';
+		$this->language_records = $language_records;
+	}
+
+	/**
+	 * @param int   $user_id
+	 * @param array $language_pairs
+	 *
+	 * Language pairs are an array of the form
+	 * array( $from_lang => array( $to_lang_1, $to_lang_2 )
+	 */
+	public function store( $user_id, $language_pairs ) {
+		$language_pairs = $this->convert_to_storage_format( $language_pairs );
+		update_user_meta( $user_id, $this->meta_key, $language_pairs );
+	}
+
+	/**
+	 * @param int $user_id
+	 * @return array
+	 *
+	 * Language pairs are returned in an array of the form
+	 * array( $from_lang => array( $to_lang_1, $to_lang_2 )
+	 */
+	public function get( $user_id ) {
+		$language_pairs = get_user_meta( $user_id, $this->meta_key, true );
+		if ( ! $language_pairs ) {
+			$language_pairs = array();
+		}
+		return $this->convert_from_storage_format( $language_pairs );
+	}
+
+	private function convert_to_storage_format( $language_pairs ) {
+		if ( $this->is_in_storage_format( $language_pairs ) ) {
+			return $language_pairs;
+		}
+
+		foreach ( $language_pairs as $from => $to_langs ) {
+			$targets = array();
+			foreach ( $to_langs as $lang ) {
+				$targets[ $lang ] = 1;
+			}
+			$language_pairs[ $from ] = $targets;
+		}
+
+		return $language_pairs;
+	}
+
+	private function is_in_storage_format( $language_pairs ) {
+		$first_from = reset( $language_pairs );
+
+		if ( $first_from && ! is_numeric( key( $first_from ) ) ) {
+			return true;
+		}
+
+		return false;
+	}
+
+	private function convert_from_storage_format( array $language_pairs ) {
+		foreach ( $language_pairs as $from => $to_langs ) {
+			if ( $this->language_records->is_valid( $from ) ) {
+				$language_pairs[ $from ] = array();
+				foreach ( array_keys( $to_langs ) as $lang ) {
+					if ( $this->language_records->is_valid( $lang ) ) {
+						$language_pairs[ $from ][] = $lang;
+					}
+				}
+			} else {
+				unset( $language_pairs[ $from ] );
+			}
+		}
+		return $language_pairs;
+	}
+
+}