wordpress - WordPress 设置验证消息显示两次
问题描述
我正在为我的 WordPress 插件添加一个非常基本的(我觉得)设置页面验证实现,它确实有效,但错误消息显示了两次。我单步执行了我的代码,对的调用add_settings_error
只执行一次。
<?php
class Example_plugin_Settings {
private $example_plugin_settings_options;
private $settings_options_name;
public function __construct() {
add_action( 'admin_menu', array( $this, 'example_plugin_settings_add_plugin_page' ) );
add_action( 'admin_init', array( $this, 'example_plugin_settings_page_init' ) );
$this->settings_options_name = 'example_plugin_options';
}
public function example_plugin_settings_add_plugin_page() {
add_options_page(
'Example-Plugin Connector Settings', // page_title
'Example-Plugin', // menu_title
'manage_options', // capability
'example-plugin-connector-settings', // menu_slug
array( $this, 'example_plugin_settings_create_admin_page' ) // function
);
}
public function example_plugin_settings_create_admin_page() {
$this->example_plugin_settings_options = get_option( 'example_plugin_options' ); ?>
<div class="wrap">
<h2>Example-Plugin Connector Settings</h2>
<p>Set up additional portals/currencies to be used with WooCommerce Currency Switcher (WOOCS). Enter a comma-delimited list of portals, then the corresponding comma-delimited list of currencies that those portals support.</p>
<?php settings_errors(); ?>
<form method="post" action="options.php">
<?php
settings_fields( 'example_plugin_settings_option_group' );
do_settings_sections( 'example-plugin-connector-settings-admin' );
submit_button();
?>
</form>
</div>
<?php }
public function example_plugin_settings_page_init() {
register_setting(
'example_plugin_settings_option_group', // option_group
$this->settings_options_name, // option_name
array( $this, 'example_plugin_settings_sanitize' ) // sanitize_callback
);
add_settings_section(
'example_plugin_settings_setting_section', // id
'Settings', // title
array( $this, 'example_plugin_settings_section_info' ), // callback
'example-plugin-connector-settings-admin' // page
);
add_settings_field(
'portals', // id
'Portals', // title
array( $this, 'portals_callback' ), // callback
'example-plugin-connector-settings-admin', // page
'example_plugin_settings_setting_section' // section
);
add_settings_field(
'currencies', // id
'Currencies', // title
array( $this, 'currencies_callback' ), // callback
'example-plugin-connector-settings-admin', // page
'example_plugin_settings_setting_section' // section
);
}
public function example_plugin_settings_sanitize($input) {
$sanitary_values = array();
if ( isset( $input['portals'] ) ) {
if ( '' == $input['portals'] ) {
$input['portals'] = '';
add_settings_error(
$this->settings_options_name,
'portals',
'Portals is a required field.',
'error'
);
} else {
$sanitary_values['portals'] = sanitize_text_field( trim( $input['portals'] ) );
}
}
if ( isset( $input['currencies'] ) ) {
if ( '' == $input['currencies'] ) {
$input['currencies'] = '';
add_settings_error(
$this->settings_options_name,
'currencies',
'Currencies is a required field.',
'error'
);
} else {
$sanitary_values['currencies'] = sanitize_text_field( trim( $input['currencies'] ) );
}
}
return $sanitary_values;
}
public function example_plugin_settings_section_info() {
}
public function portals_callback() {
printf(
'<input class="regular-text" type="text" name="example_plugin_options[portals]" id="portals" value="%s">',
isset( $this->example_plugin_settings_options['portals'] ) ? esc_attr( $this->example_plugin_settings_options['portals']) : ''
);
}
public function currencies_callback() {
printf(
'<input class="regular-text" type="text" name="example_plugin_options[currencies]" id="currencies" value="%s">',
isset( $this->example_plugin_settings_options['currencies'] ) ? esc_attr( $this->example_plugin_settings_options['currencies']) : ''
);
}
}
if ( is_admin() )
$example_plugin_settings = new Example_plugin_Settings();
解决方案
看来问题出在线路上<?php settings_errors(); ?>
。我从WordPress 选项页面生成器中获得了基本代码,但可能代码已经过时,并且该行现在对于新版本的 WordPress 是多余的?我不确定。
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