dartrax · September 29, 2022 19:14 · egcmi · Mar 28, 2021 · dartrax · Mar 28, 2021
diff --git a/functions.php b/functions.php
 // Save the current language in post_meta when checkout is processed (used to identify correct Email language)
 add_action('woocommerce_checkout_update_order_meta', 'dartrax_save_language_on_checkout', 10, 2 );
 function dartrax_save_language_on_checkout( $order_id, $posted ) {
 	if( ! class_exists('TRP_Translate_Press') ) return '';
 	global $TRP_LANGUAGE;
    update_post_meta( $order_id, 'order_language', $TRP_LANGUAGE );
 }

 // Woocommerce Germanized Mails
 add_action( 'woocommerce_gzd_shipment_status_draft_to_shipped_notification', 'dartrax_prepare_locale_for_Mail_with_shipment_id', 5, 1 );
 add_action( 'woocommerce_gzd_shipment_status_processing_to_shipped_notification', 'dartrax_prepare_locale_for_Mail_with_shipment_id', 5, 1 );
 add_action( 'woocommerce_gzd_return_shipment_status_draft_to_processing_notification', 'dartrax_prepare_locale_for_Mail_with_shipment_id', 5, 1 );
 add_action( 'woocommerce_gzd_return_shipment_status_requested_to_processing_notification', 'dartrax_prepare_locale_for_Mail_with_shipment_id', 5, 1 );
 add_action( 'woocommerce_gzd_return_shipment_status_processing_to_delivered_notification', 'dartrax_prepare_locale_for_Mail_with_shipment_id', 5, 1 );
 add_action( 'woocommerce_gzd_return_shipment_status_shipped_to_delivered_notification', 'dartrax_prepare_locale_for_Mail_with_shipment_id', 5, 1 );
 function dartrax_prepare_locale_for_Mail_with_shipment_id( $shipment_id ) {
 	// get order_id from shipment and proceed with that
 	if( $shipment = wc_gzd_get_shipment( $shipment_id ) )
 		dartrax_prepare_locale_for_Mail_with_order_id( $shipment->get_order_id() );
 }

 // Woocommerce Shipment Mails
 add_action( 'woocommerce_order_status_processing_to_cancelled_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 add_action( 'woocommerce_order_status_on-hold_to_cancelled_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 add_action( 'woocommerce_order_status_completed_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 add_action( 'woocommerce_order_status_pending_to_on-hold_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 add_action( 'woocommerce_order_status_failed_to_on-hold_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 add_action( 'woocommerce_order_status_cancelled_to_on-hold_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 add_action( 'woocommerce_order_status_cancelled_to_processing_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 add_action( 'woocommerce_order_status_failed_to_processing_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 add_action( 'woocommerce_order_status_on-hold_to_processing_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 add_action( 'woocommerce_order_status_pending_to_processing_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 add_action( 'woocommerce_order_fully_refunded_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 add_action( 'woocommerce_order_partially_refunded_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 add_action( 'woocommerce_order_status_pending_to_failed_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 add_action( 'woocommerce_order_status_on-hold_to_failed_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 add_action( 'woocommerce_order_status_pending_to_completed_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 add_action( 'woocommerce_order_status_failed_to_completed_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 add_action( 'woocommerce_order_status_cancelled_to_completed_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
 function dartrax_prepare_locale_for_Mail_with_order_id( $order_id ) {
 	// Get language code that may be stored in post meta data
 	$lang_code = get_post_meta($order_id, 'order_language', true);
 	if( $lang_code == '' || ! class_exists('TRP_Translate_Press') ) return '';
 	// Set it as current active language for translatepress
 	global $TRP_LANGUAGE;
 	$TRP_LANGUAGE = $lang_code;
 }

 // Woocommerce Mails when resend by Admin
 add_action( 'woocommerce_before_resend_order_emails','dartrax_prepare_locale_for_resend_Mails', 5, 2 );
 function dartrax_prepare_locale_for_resend_Mails( $order, $mail_type ) {
 	// First type belongs to WooCommerce, last two types belong to WooCommerce Germanized
 	if($mail_type == 'customer_invoice' || $mail_type == 'customer_paid_for_order' || $mail_type == 'customer_processing_order')
 		dartrax_prepare_locale_for_Mail_with_order_id( $order->get_id() );
 }

 // Woocommerce Note to customer Mail
 add_action( 'woocommerce_new_customer_note_notification','dartrax_prepare_locale_for_note_Mails', 5, 1 );
 function dartrax_prepare_locale_for_note_Mails( $note_and_order_id ) {
 	// get order_id from argument array and proceed with that
 	dartrax_prepare_locale_for_Mail_with_order_id( $note_and_order_id['order_id'] );
 }

 // Prevent Woocommerce Germanized from filtering the Translatepress Shortcut when legal pages are used in emails
 add_filter( 'woocommerce_gzd_email_attachment_content_shortcodes_allowed', function( $shortcodes_allowed ) {
 	array_push($shortcodes_allowed, "trp_language");
 	return $shortcodes_allowed;
 } );

 // Override Locale when WooCommerce sends an eMail
 add_filter( 'woocommerce_email_setup_locale', function() {
 	if( ! class_exists('TRP_Translate_Press') ) return '';
 	// Override translatepress 'locale'-function because that does not work in Admin interface
 	add_filter('locale','dartrax_force_trp_locale', 99999 + 1);
 	// Switch text domains to load the correct .po/.mo-file based translations
 	global $TRP_LANGUAGE;
 	switch_text_domains( $TRP_LANGUAGE );
 	return false;
 } );
 add_filter( 'woocommerce_email_restore_locale', function() {
 	// Undo overriding of translatepress' 'locale'-function
 	remove_filter('locale','dartrax_force_trp_locale', 99999 + 1);
 	return true;
 } );

 // Override translatepress 'locale'-function because that does not deliver $TRP_LANGUAGE in Admin interface
 function dartrax_force_trp_locale($locale) {
 	global $TRP_LANGUAGE;
 	return $TRP_LANGUAGE;
 }	

 // Override 'plugin_locale'-function so Woocommerce and Woocommerze Germanized won't use the admin profile language
 function dartrax_force_woo_locale($locale, $plugin) {
 	global $TRP_LANGUAGE;
 	return $plugin == 'woocommerce' || $plugin == 'woocommerce-germanized' ? $TRP_LANGUAGE : $locale;
 }

 // Switch to another text domain. Inspired by https://gist.github.com/Jon007/5b90e78289899bc28e9c39c12ef56e60
 function switch_text_domains( $language ) {
 	if ( class_exists( 'TRP_Translate_Press' ) && class_exists( 'WooCommerce' ) && class_exists( 'WooCommerce_Germanized' ) ) {
 		global $locale, $woocommerce, $woocommerce_germanized;
 		// unload plugin's textdomains
 		unload_textdomain( 'default' );
 		unload_textdomain( 'woocommerce' );
 		unload_textdomain( 'woocommerce-germanized' );
 		// set locale to order locale
 		$locale	= apply_filters( 'locale', $language );
 		// Woocommerce and Woocommerce Germanized use the admin profile language instead of the side language. Override with the desired language
 		add_filter('plugin_locale', 'dartrax_force_woo_locale', 10, 2);
 		// (re-)load plugin's textdomain with order locale
 		load_default_textdomain( $language );
 		$woocommerce->load_plugin_textdomain();
 		$woocommerce_germanized->load_plugin_textdomain();
 		$wp_locale = new \WP_Locale();
 		// Clean up
 		remove_filter('plugin_locale', 'dartrax_force_woo_locale', 10);		
 	}
 }
	// Save the current language in post_meta when checkout is processed (used to identify correct Email language)
	add_action('woocommerce_checkout_update_order_meta', 'dartrax_save_language_on_checkout', 10, 2 );
	function dartrax_save_language_on_checkout( $order_id, $posted ) {
	if( ! class_exists('TRP_Translate_Press') ) return '';
	global $TRP_LANGUAGE;
	update_post_meta( $order_id, 'order_language', $TRP_LANGUAGE );
	}

	// Woocommerce Germanized Mails
	add_action( 'woocommerce_gzd_shipment_status_draft_to_shipped_notification', 'dartrax_prepare_locale_for_Mail_with_shipment_id', 5, 1 );
	add_action( 'woocommerce_gzd_shipment_status_processing_to_shipped_notification', 'dartrax_prepare_locale_for_Mail_with_shipment_id', 5, 1 );
	add_action( 'woocommerce_gzd_return_shipment_status_draft_to_processing_notification', 'dartrax_prepare_locale_for_Mail_with_shipment_id', 5, 1 );
	add_action( 'woocommerce_gzd_return_shipment_status_requested_to_processing_notification', 'dartrax_prepare_locale_for_Mail_with_shipment_id', 5, 1 );
	add_action( 'woocommerce_gzd_return_shipment_status_processing_to_delivered_notification', 'dartrax_prepare_locale_for_Mail_with_shipment_id', 5, 1 );
	add_action( 'woocommerce_gzd_return_shipment_status_shipped_to_delivered_notification', 'dartrax_prepare_locale_for_Mail_with_shipment_id', 5, 1 );
	function dartrax_prepare_locale_for_Mail_with_shipment_id( $shipment_id ) {
	// get order_id from shipment and proceed with that
	if( $shipment = wc_gzd_get_shipment( $shipment_id ) )
	dartrax_prepare_locale_for_Mail_with_order_id( $shipment->get_order_id() );
	}

	// Woocommerce Shipment Mails
	add_action( 'woocommerce_order_status_processing_to_cancelled_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	add_action( 'woocommerce_order_status_on-hold_to_cancelled_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	add_action( 'woocommerce_order_status_completed_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	add_action( 'woocommerce_order_status_pending_to_on-hold_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	add_action( 'woocommerce_order_status_failed_to_on-hold_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	add_action( 'woocommerce_order_status_cancelled_to_on-hold_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	add_action( 'woocommerce_order_status_cancelled_to_processing_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	add_action( 'woocommerce_order_status_failed_to_processing_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	add_action( 'woocommerce_order_status_on-hold_to_processing_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	add_action( 'woocommerce_order_status_pending_to_processing_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	add_action( 'woocommerce_order_fully_refunded_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	add_action( 'woocommerce_order_partially_refunded_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	add_action( 'woocommerce_order_status_pending_to_failed_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	add_action( 'woocommerce_order_status_on-hold_to_failed_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	add_action( 'woocommerce_order_status_pending_to_completed_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	add_action( 'woocommerce_order_status_failed_to_completed_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	add_action( 'woocommerce_order_status_cancelled_to_completed_notification','dartrax_prepare_locale_for_Mail_with_order_id', 5, 1 );
	function dartrax_prepare_locale_for_Mail_with_order_id( $order_id ) {
	// Get language code that may be stored in post meta data
	$lang_code = get_post_meta($order_id, 'order_language', true);
	if( $lang_code == '' \|\| ! class_exists('TRP_Translate_Press') ) return '';
	// Set it as current active language for translatepress
	global $TRP_LANGUAGE;
	$TRP_LANGUAGE = $lang_code;
	}

	// Woocommerce Mails when resend by Admin
	add_action( 'woocommerce_before_resend_order_emails','dartrax_prepare_locale_for_resend_Mails', 5, 2 );
	function dartrax_prepare_locale_for_resend_Mails( $order, $mail_type ) {
	// First type belongs to WooCommerce, last two types belong to WooCommerce Germanized
	if($mail_type == 'customer_invoice' \|\| $mail_type == 'customer_paid_for_order' \|\| $mail_type == 'customer_processing_order')
	dartrax_prepare_locale_for_Mail_with_order_id( $order->get_id() );
	}

	// Woocommerce Note to customer Mail
	add_action( 'woocommerce_new_customer_note_notification','dartrax_prepare_locale_for_note_Mails', 5, 1 );
	function dartrax_prepare_locale_for_note_Mails( $note_and_order_id ) {
	// get order_id from argument array and proceed with that
	dartrax_prepare_locale_for_Mail_with_order_id( $note_and_order_id['order_id'] );
	}

	// Prevent Woocommerce Germanized from filtering the Translatepress Shortcut when legal pages are used in emails
	add_filter( 'woocommerce_gzd_email_attachment_content_shortcodes_allowed', function( $shortcodes_allowed ) {
	array_push($shortcodes_allowed, "trp_language");
	return $shortcodes_allowed;
	} );

	// Override Locale when WooCommerce sends an eMail
	add_filter( 'woocommerce_email_setup_locale', function() {
	if( ! class_exists('TRP_Translate_Press') ) return '';
	// Override translatepress 'locale'-function because that does not work in Admin interface
	add_filter('locale','dartrax_force_trp_locale', 99999 + 1);
	// Switch text domains to load the correct .po/.mo-file based translations
	global $TRP_LANGUAGE;
	switch_text_domains( $TRP_LANGUAGE );
	return false;
	} );
	add_filter( 'woocommerce_email_restore_locale', function() {
	// Undo overriding of translatepress' 'locale'-function
	remove_filter('locale','dartrax_force_trp_locale', 99999 + 1);
	return true;
	} );

	// Override translatepress 'locale'-function because that does not deliver $TRP_LANGUAGE in Admin interface
	function dartrax_force_trp_locale($locale) {
	global $TRP_LANGUAGE;
	return $TRP_LANGUAGE;
	}

	// Override 'plugin_locale'-function so Woocommerce and Woocommerze Germanized won't use the admin profile language
	function dartrax_force_woo_locale($locale, $plugin) {
	global $TRP_LANGUAGE;
	return $plugin == 'woocommerce' \|\| $plugin == 'woocommerce-germanized' ? $TRP_LANGUAGE : $locale;
	}

	// Switch to another text domain. Inspired by https://gist.github.com/Jon007/5b90e78289899bc28e9c39c12ef56e60
	function switch_text_domains( $language ) {
	if ( class_exists( 'TRP_Translate_Press' ) && class_exists( 'WooCommerce' ) && class_exists( 'WooCommerce_Germanized' ) ) {
	global $locale, $woocommerce, $woocommerce_germanized;
	// unload plugin's textdomains
	unload_textdomain( 'default' );
	unload_textdomain( 'woocommerce' );
	unload_textdomain( 'woocommerce-germanized' );
	// set locale to order locale
	$locale = apply_filters( 'locale', $language );
	// Woocommerce and Woocommerce Germanized use the admin profile language instead of the side language. Override with the desired language
	add_filter('plugin_locale', 'dartrax_force_woo_locale', 10, 2);
	// (re-)load plugin's textdomain with order locale
	load_default_textdomain( $language );
	$woocommerce->load_plugin_textdomain();
	$woocommerce_germanized->load_plugin_textdomain();
	$wp_locale = new \WP_Locale();
	// Clean up
	remove_filter('plugin_locale', 'dartrax_force_woo_locale', 10);
	}
	}