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<?php

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class WPML_Upgrade_Chinese_Flags implements IWPML_Upgrade_Command {

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private $wpdb;

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/**

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* WPML_Upgrade_Chinese_Flags constructor.

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* @param array $args {

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* 'wpdb' => @type wpdb

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* }

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public function __construct( array $args ) {

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$this->wpdb = $args['wpdb'];

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}

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public function run() {

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$codes = array( 'zh-hans', 'zh-hant' );

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$flags_query = 'SELECT id, lang_code, flag FROM ' . $this->wpdb->prefix . 'icl_flags WHERE lang_code IN (' . wpml_prepare_in( $codes ) . ')';

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$flags = $this->wpdb->get_results( $flags_query );

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if ( $flags ) {

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foreach ( $flags as $flag ) {

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if ( $this->must_update( $flag ) ) {

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$this->wpdb->update( $this->wpdb->prefix . 'icl_flags',

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array(

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'flag' => 'zh.png'

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array( 'id' => $flag->id ),

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array( '%s' ),

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array( '%d' )

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);

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}

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}

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}

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return true;

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}

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/**

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* @param \stdClass $flag

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* @return bool

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protected function must_update( $flag ) {

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return $flag->flag === $flag->lang_code . '.png';

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}

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public function run_admin() {

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return $this->run();

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}

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public function run_ajax() {

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return null;

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}

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public function run_frontend() {

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return null;

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}

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public function get_results() {

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return null;

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}

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}

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