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wp-content/plugins/polylang-pro/vendor/wpsyntex/polylang/include/mo.php

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+<?php
+/**
+ * @package Polylang
+ */
+
+/**
+ * Manages strings translations storage
+ *
+ * @since 1.2
+ * @since 2.1 Stores the strings in a post meta instead of post content to avoid unserialize issues (See #63)
+ * @since 3.4 Stores the strings into language taxonomy term meta instead of a post meta.
+ */
+class PLL_MO extends MO {
+
+	/**
+	 * Writes the strings into a term meta.
+	 *
+	 * @since 1.2
+	 *
+	 * @param PLL_Language $lang The language in which we want to export strings.
+	 * @return void
+	 */
+	public function export_to_db( $lang ) {
+		/*
+		 * It would be convenient to store the whole object, but it would take a huge space in DB.
+		 * So let's keep only the strings in an array.
+		 * The strings are slashed to avoid breaking slashed strings in update_term_meta.
+		 * @see https://codex.wordpress.org/Function_Reference/update_post_meta#Character_Escaping.
+		 */
+		$strings = array();
+		foreach ( $this->entries as $entry ) {
+			if ( '' !== $entry->singular ) {
+				$strings[] = wp_slash( array( $entry->singular, $this->translate( $entry->singular ) ) );
+			}
+		}
+
+		update_term_meta( $lang->term_id, '_pll_strings_translations', $strings );
+	}
+
+	/**
+	 * Reads a PLL_MO object from the term meta.
+	 *
+	 * @since 1.2
+	 * @since 3.4 Reads a PLL_MO from the term meta.
+	 *
+	 * @param PLL_Language $lang The language in which we want to get strings.
+	 * @return void
+	 */
+	public function import_from_db( $lang ) {
+		$this->set_header( 'Language', $lang->slug );
+
+		$strings = get_term_meta( $lang->term_id, '_pll_strings_translations', true );
+		if ( empty( $strings ) || ! is_array( $strings ) ) {
+			return;
+		}
+
+		foreach ( $strings as $msg ) {
+			$entry = $this->make_entry( $msg[0], $msg[1] );
+
+			if ( '' !== $entry->singular ) {
+				$this->add_entry( $entry );
+			}
+		}
+	}
+
+	/**
+	 * Deletes a string
+	 *
+	 * @since 2.9
+	 *
+	 * @param string $string The source string to remove from the translations.
+	 * @return void
+	 */
+	public function delete_entry( $string ) {
+		unset( $this->entries[ $string ] );
+	}
+}