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✏️ Editing: wpml-installation.class.php

<?php

class WPML_Installation extends WPML_WPDB_And_SP_User {

const WPML_START_VERSION_KEY = 'wpml_start_version';

public static function getStartVersion() {
		return get_option( self::WPML_START_VERSION_KEY, '0.0.0' );
	}

function go_to_setup1() {
		// Reverse $this->prepopulate_translations()
		$this->wpdb->query( "TRUNCATE TABLE {$this->wpdb->prefix}icl_translations" );

// Unset or reset sitepress settings
		$settings = $this->sitepress->get_settings();

unset(
			$settings['default_categories'],
			$settings['default_language'],
			$settings['setup_wizard_step']
		);

$settings['existing_content_language_verified'] = 0;
		$settings['active_languages'] = array();
		$GLOBALS['sitepress_settings']['existing_content_language_verified'] = $settings['existing_content_language_verified'];
		update_option( 'icl_sitepress_settings', $settings );

// Reverse $this->maybe_set_locale()
		$this->wpdb->query( "TRUNCATE TABLE {$this->wpdb->prefix}icl_locale_map" );

// Make sure no language is active
		$this->wpdb->update( $this->wpdb->prefix . 'icl_languages', array( 'active' => 0 ), array( 'active' => 1 ) );
	}

/**
	 * Sets the locale in the icl_locale_map if it has not yet been set
	 *
	 * @param string $initial_language_code
	 */
	private function maybe_set_locale( $initial_language_code ) {
		$q          = "SELECT code FROM {$this->wpdb->prefix}icl_locale_map WHERE code=%s";
		$q_prepared = $this->wpdb->prepare( $q, $initial_language_code );
		if ( ! $this->wpdb->get_var( $q_prepared ) ) {
			$q              = "SELECT default_locale FROM {$this->wpdb->prefix}icl_languages WHERE code=%s";
			$q_prepared     = $this->wpdb->prepare( $q, $initial_language_code );
			$default_locale = $this->wpdb->get_var( $q_prepared );
			if ( $default_locale ) {
				$this->wpdb->insert(
					$this->wpdb->prefix . 'icl_locale_map',
					array( 'code' => $initial_language_code, 'locale' => $default_locale )
				);

}
		}
	}

public function finish_step2( $active_languages ) {
		return $this->set_active_languages( $active_languages );
	}

public function set_active_languages( $arr ) {
		$tmp = $this->sanitize_language_input( $arr );
		if ( (bool) $tmp === false ) {
			return false;
		}

foreach ( $tmp as $code ) {
			$default_locale_prepared = $this->wpdb->prepare(
				"SELECT default_locale FROM {$this->wpdb->prefix}icl_languages WHERE code= %s LIMIT 1",
				$code
			);
			$default_locale          = $this->wpdb->get_var( $default_locale_prepared );
			if ( $default_locale ) {
				$code_exists_prepared = $this->wpdb->prepare(
					"SELECT code FROM {$this->wpdb->prefix}icl_locale_map WHERE code = %s LIMIT 1",
					$code
				);
				$code_exists          = $this->wpdb->get_var( $code_exists_prepared );
				if ( $code_exists ) {
					$this->wpdb->update(
						$this->wpdb->prefix . 'icl_locale_map',
						array( 'locale' => $default_locale ),
						array( 'code' => $code )
					);
				} else {
					$this->wpdb->insert(
						$this->wpdb->prefix . 'icl_locale_map',
						array( 'code' => $code, 'locale' => $default_locale )
					);
				}
			}
			SitePress_Setup::insert_default_category( $code );
		}

$this->wpdb->query(
			"UPDATE {$this->wpdb->prefix}icl_languages SET active = 1 WHERE code IN (" . wpml_prepare_in( $tmp ) . " ) "
		);
		$this->wpdb->query(
			"UPDATE {$this->wpdb->prefix}icl_languages SET active = 0 WHERE code NOT IN (" . wpml_prepare_in( $tmp ) . " ) "
		);
		$this->updated_active_languages();

return true;
	}

private function sanitize_language_input( $lang_codes ) {
		$languages       = $this->sitepress->get_languages( false, false, true );
		$sanitized_codes = array();
		$lang_codes      = array_filter( array_unique( $lang_codes ) );
		foreach ( $lang_codes as $code ) {
			$code = esc_sql( trim( $code ) );
			if ( isset( $languages[ $code ] ) ) {
				$sanitized_codes[] = $code;
			}
		}

return $sanitized_codes;
	}

public function finish_installation( ) {
		icl_set_setting( 'store_frontend_cookie', 1 );

icl_set_setting( 'setup_complete', 1, true );

update_option( self::WPML_START_VERSION_KEY, ICL_SITEPRESS_VERSION );

do_action( 'wpml_setup_completed' );
	}

public function store_site_key( $site_key = false ) {
		if ( $site_key ) {
			icl_set_setting( 'site_key', $site_key, true );
		}
	}

public function finish_step3() {
		$this->maybe_move_setup( 4 );
	}

private function maybe_move_setup( $step ) {
		$setup_complete = icl_get_setting( 'setup_complete' );
		if ( empty( $setup_complete ) ) {
			icl_set_setting( 'setup_wizard_step', $step, true );
		}
	}

private function updated_active_languages() {
		wp_cache_init();
		icl_cache_clear();
		$this->refresh_active_lang_cache( wpml_get_setting_filter( false, 'default_language' ), true );
		$this->update_languages_order();
		wpml_reload_active_languages_setting( true );
		$active_langs = $this->sitepress->get_active_languages( true );
		$this->maybe_move_setup( 3 );
		if ( count( $active_langs ) > 1 ) {
			icl_set_setting( 'dont_show_help_admin_notice', true );
		}
	}

public function finish_step1( $initial_language_code ) {
		$this->set_initial_default_category( $initial_language_code );
		$this->prepopulate_translations( $initial_language_code );
		$this->update_active_language( $initial_language_code );
		$admin_language = $this->get_admin_language( $initial_language_code );
		$this->maybe_set_locale( $admin_language );
		icl_set_setting( 'existing_content_language_verified', 1 );
		icl_set_setting( 'default_language', $initial_language_code );
		icl_set_setting( 'setup_wizard_step', 2 );
		icl_save_settings();
		wp_cache_flush();
		$this->refresh_active_lang_cache( $initial_language_code );
		add_filter( 'locale', array( $this->sitepress, 'locale_filter' ), 10, 1 );

if ( ! array_key_exists( 'wp_styles', $GLOBALS ) || ! $GLOBALS['wp_styles'] ) {
			wp_styles();
		}

if ( $this->sitepress->is_rtl( $admin_language ) ) {
			$GLOBALS['text_direction'] = 'rtl';
			$GLOBALS['wp_styles']->text_direction = 'rtl';
		} else {
			$GLOBALS['text_direction'] = 'ltr';
			$GLOBALS['wp_styles']->text_direction = 'ltr';
		}

$GLOBALS['wp_locale'] = new WP_Locale();
		$GLOBALS['locale'] = $this->sitepress->get_locale( $admin_language );

do_action( 'icl_initial_language_set' );
	}

/**
	 * @param string $initial_language_code
	 *
	 * @return string
	 */
	private function get_admin_language( $initial_language_code ) {
		$user_locale = get_user_meta( get_current_user_id(), 'locale', true );

if ( $user_locale ) {
			$lang = $this->sitepress->get_language_code_from_locale( $user_locale );

if ( $lang ) {
				return $lang;
			}
		}

return $initial_language_code;

}

private function set_initial_default_category( $initial_lang ) {
		$blog_default_cat        = get_option( 'default_category' );
		$blog_default_cat_tax_id = $this->wpdb->get_var(
			$this->wpdb->prepare(
				"	SELECT term_taxonomy_id
	                FROM {$this->wpdb->term_taxonomy}
	                WHERE term_id=%d
	                  AND taxonomy='category'",
				$blog_default_cat
			)
		);

if ($initial_lang !== 'en') {
			$this->rename_default_category_of_initial_language( $initial_lang, $blog_default_cat );
		}

icl_set_setting( 'default_categories', array( $initial_lang => $blog_default_cat_tax_id ), true );
	}

private function rename_default_category_of_initial_language( $initial_lang, $category_id ) {
		global $sitepress;
		$sitepress->switch_locale( $initial_lang );
		$tr_cat = __( 'Uncategorized', 'sitepress' );
		$tr_cat = $tr_cat === 'Uncategorized' ? 'Uncategorized @' . $initial_lang : $tr_cat;
		$sitepress->switch_locale();

wp_update_term( $category_id, 'category', array(
			'name' => $tr_cat,
			'slug' => sanitize_title( $tr_cat ),
		) );
	}

/**
	 * @param string $display_language
	 * @param bool   $active_only
	 * @param bool   $major_first
	 * @param string $order_by
	 *
	 * @return array<string,\stdClass>
	 */
	public function refresh_active_lang_cache( $display_language, $active_only = false, $major_first = false,  $order_by = 'english_name' ) {
		$active_snippet     = $active_only ? " l.active = 1 AND " : "";
		$res_query
							= "
            SELECT
              l.code,
              l.id,
              english_name,
              nt.name AS native_name,
              major,
              active,
              default_locale,
              encode_url,
              tag,
              lt.name AS display_name
			FROM {$this->wpdb->prefix}icl_languages l
			JOIN {$this->wpdb->prefix}icl_languages_translations nt
			  ON ( nt.language_code = l.code AND nt.display_language_code = l.code )
            LEFT OUTER JOIN {$this->wpdb->prefix}icl_languages_translations lt ON l.code=lt.language_code
			WHERE {$active_snippet}
			  ( lt.display_language_code = %s
			  OR (lt.display_language_code = 'en'
			    AND NOT EXISTS ( SELECT *
			          FROM {$this->wpdb->prefix}icl_languages_translations ls
			          WHERE ls.language_code = l.code
			            AND ls.display_language_code = %s ) ) )
            GROUP BY l.code";

$order_by_fields = array();
		if ( $major_first ) {
			$order_by_fields[] = 'major DESC';
		}
		$order_by_fields[] = ( $order_by ? $order_by : 'english_name' ) . ' ASC';

$res_query .= PHP_EOL . 'ORDER BY ' . implode( ', ', $order_by_fields );

$res_query_prepared = $this->wpdb->prepare( $res_query, $display_language, $display_language );
		$res                = $this->wpdb->get_results( $res_query_prepared, ARRAY_A );
		$languages          = array();

$icl_cache = $this->sitepress->get_language_name_cache();
		foreach ( (array) $res as $r ) {
			$languages[ $r[ 'code' ] ] = $r;
			$icl_cache->set( 'language_details_' . $r['code'] . $display_language, $r );
		}

if ( $active_only ) {
			$icl_cache->set( 'in_language_' . $display_language . '_' . $major_first . '_' . $order_by, $languages );
		} else {
			$icl_cache->set( 'all_language_' . $display_language . '_' . $major_first . '_' . $order_by, $languages );
		}

$icl_cache->save_cache_if_required();
		
		return $languages;
	}

private function update_languages_order() {
		$needs_update  = false;
		$current_order = $this->sitepress->get_setting( 'languages_order', array() );
		if ( ! is_array( $current_order ) ) {
			$current_order = array();
		}
		$languages = $this->sitepress->get_languages( false, false, true );
		$new_order = $current_order;
		foreach ( $languages as $language_code => $language ) {
			if ( ! in_array( $language_code, $new_order ) && '1' === $language['active'] ) {
				$new_order[]  = $language_code;
				$needs_update = true;
			}
			if ( in_array( $language_code, $new_order ) && '1' !== $language['active'] ) {
				$new_order    = array_diff( $new_order, array( $language_code ) );
				$needs_update = true;
			}
		}

if ( $needs_update ) {
			$new_order = array_values( $new_order );
			$this->sitepress->set_setting( 'languages_order', $new_order, true );
		}
	}

private function prepopulate_translations( $lang ) {
		$existing_lang_verified = icl_get_setting( 'existing_content_language_verified' );
		if ( ! empty( $existing_lang_verified ) ) {
			return;
		}

icl_cache_clear();

// case of icl_sitepress_settings accidentally lost
		// if there's at least one translation do not initialize the languages for elements
		$one_translation = $this->wpdb->get_var(
			$this->wpdb->prepare(
				"SELECT translation_id FROM {$this->wpdb->prefix}icl_translations WHERE language_code<>%s",
				$lang
			)
		);
		if ( $one_translation ) {
			return;
		}

$this->wpdb->query( "TRUNCATE TABLE {$this->wpdb->prefix}icl_translations" );
		$this->wpdb->query(
			$this->wpdb->prepare(
				"
			INSERT INTO {$this->wpdb->prefix}icl_translations(element_type, element_id, trid, language_code, source_language_code)
			SELECT CONCAT('post_',post_type), ID, ID, %s, NULL FROM {$this->wpdb->posts} WHERE post_status IN ('draft', 'publish','schedule','future','private', 'pending', 'trash')
			",
				$lang
			)
		);

$maxtrid = 1 + (int) $this->wpdb->get_var( "SELECT MAX(trid) FROM {$this->wpdb->prefix}icl_translations" );

global $wp_taxonomies;
		$taxonomies = array_keys( (array) $wp_taxonomies );
		foreach ( $taxonomies as $tax ) {
			$element_type   = 'tax_' . $tax;
			$insert_query
							= "
				INSERT INTO {$this->wpdb->prefix}icl_translations(element_type, element_id, trid, language_code, source_language_code)
				SELECT %s, term_taxonomy_id, %d+term_taxonomy_id, %s, NULL FROM {$this->wpdb->term_taxonomy} WHERE taxonomy = %s
				";
			$insert_prepare = $this->wpdb->prepare( $insert_query, array( $element_type, $maxtrid, $lang, $tax ) );
			$this->wpdb->query( $insert_prepare );
			$maxtrid = 1 + (int) $this->wpdb->get_var( "SELECT MAX(trid) FROM {$this->wpdb->prefix}icl_translations" );
		}

$this->wpdb->query(
			$this->wpdb->prepare(
				"
			INSERT INTO {$this->wpdb->prefix}icl_translations(element_type, element_id, trid, language_code, source_language_code)
			SELECT 'comment', comment_ID, {$maxtrid}+comment_ID, %s, NULL FROM {$this->wpdb->comments}
			",
				$lang
			)
		);
	}

public function update_active_language( $lang ) {
		$this->wpdb->update( $this->wpdb->prefix . 'icl_languages', array( 'active' => '1' ), array( 'code' => $lang ) );
	}

function reset_language_data() {
		global $sitepress, $wpdb;

$active = $this->wpdb->get_col( "SELECT code FROM {$this->wpdb->prefix}icl_languages WHERE active = 1" );
		$this->wpdb->query( "TRUNCATE TABLE `{$this->wpdb->prefix}icl_languages`" );
		SitePress_Setup::fill_languages();
		$this->wpdb->query( "TRUNCATE TABLE `{$this->wpdb->prefix}icl_languages_translations`" );
		SitePress_Setup::fill_languages_translations();
		$this->wpdb->query( "TRUNCATE TABLE `{$this->wpdb->prefix}icl_flags`" );
		SitePress_Setup::fill_flags();

//restore active
		$this->wpdb->query(
			"UPDATE {$this->wpdb->prefix}icl_languages SET active=1 WHERE code IN(" . wpml_prepare_in( $active ) . ")"
		);

$this->wpdb->update( $this->wpdb->prefix . 'icl_flags', array( 'from_template' => 0 ), null );

$codes = $this->wpdb->get_col( "SELECT code FROM {$this->wpdb->prefix}icl_languages" );
		foreach ( $codes as $code ) {
			if ( ! $code || $this->wpdb->get_var(
					$this->wpdb->prepare( "SELECT lang_code FROM {$this->wpdb->prefix}icl_flags WHERE lang_code = %s", $code )
				)
			) {
				continue;
			}

$file = wpml_get_flag_file_name( $code );

$this->wpdb->insert(
				$this->wpdb->prefix . 'icl_flags',
				array( 'lang_code' => $code, 'flag' => $file, 'from_template' => 0 )
			);
		}

$last_default_language = $this->sitepress !== null ? $this->sitepress->get_default_language() : 'en';
		if ( ! in_array( $last_default_language, $codes ) ) {
			$last_active_languages = $this->sitepress->get_active_languages();
			foreach ( $last_active_languages as $code => $last_active_language ) {
				if ( in_array( $code, $codes ) ) {
					$this->sitepress->set_default_language( $code );
					break;
				}
			}
		}

$language_pair_records = new WPML_Language_Pair_Records( $wpdb, new WPML_Language_Records( $wpdb ) );

$users = get_users( [ 'fields' => [ 'ID' ] ] );

foreach ( $users as $user ) {
			$language_pair_records->remove_invalid_language_pairs( $user->ID );
		}

icl_cache_clear();

$sitepress->get_translations_cache()->clear();
		$sitepress->clear_flags_cache();
		$sitepress->get_language_name_cache()->clear();
	}

}

MR SKB