我正在使用WordPress主题，其中用户可以选择导入演示数据，它确实导入正常并且目标已完成。但是，我必须为用户提供两个可供选择的选项，1：家庭法，2：伤害法。
如果用户选择家庭法，那么将导入与家庭法网站相关的演示内容，如果用户点击伤害法律下载，则将导入伤害法网站的内容。我怎样才能在WordPress中实现这一目标？是否可以在WordPress中使用？
这是我的导入页面代码：
<?php
/**
* Class Radium_Theme_Importer
* @since 0.0.2
*/
// Exit if accessed directly
if ( !defined( 'ABSPATH' ) ) exit;
// Don't duplicate me!
if ( !class_exists( 'Radium_Theme_Importer' ) ) {
class Radium_Theme_Importer {
/**
* Set the theme framework in use
*/
public $theme_options_framework = 'radium'; //supports radium framework and option tree
/**
* Holds a copy of the object for easy reference.
*
* @since 0.0.2
*
* @var object
*/
public $theme_options_file;
/**
* Holds a copy of the object for easy reference.
*
* @since 0.0.2
*
* @var object
*/
public $widgets;
/**
* Holds a copy of the object for easy reference.
*
* @since 0.0.2
*
* @var object
*/
public $content_demo;
/**
* Flag imported to prevent duplicates
*
* @since 0.0.3
*
* @var array
*/
public $flag_as_imported = array( 'content' => false, 'menus' => false, 'options' => false, 'widgets' =>false );
/**
* imported sections to prevent duplicates
*
* @since 0.0.3
*
* @var array
*/
public $imported_demos = array();
/**
* Flag imported to prevent duplicates
*
* @since 0.0.3
*
* @var bool
*/
public $add_admin_menu = true;
/**
* Holds a copy of the object for easy reference.
*
* @since 0.0.2
*
* @var object
*/
private static $instance;
/**
* Constructor. Hooks all interactions to initialize the class.
*
* @since 0.0.2
*/
public function __construct() {
self::$instance = $this;
$this->demo_files_path = apply_filters('radium_theme_importer_demo_files_path', $this->demo_files_path);
$this->theme_options_file = apply_filters('radium_theme_importer_theme_options_file', $this->demo_files_path . $this->theme_options_file_name);
$this->widgets = apply_filters('radium_theme_importer_widgets_file', $this->demo_files_path . $this->widgets_file_name);
$this->content_demo = apply_filters('radium_theme_importer_content_demo_file', $this->demo_files_path . $this->content_demo_file_name);
$this->imported_demos = get_option( 'radium_imported_demo' );
if( $this->theme_options_framework == 'optiontree' ) {
$this->theme_option_name = ot_options_id();
}
if( $this->add_admin_menu ) add_action( 'admin_menu', array($this, 'add_admin') );
add_filter( 'add_post_metadata', array( $this, 'check_previous_meta' ), 10, 5 );
add_action( 'radium_import_end', array( $this, 'after_wp_importer' ) );
}
/**
* Add Panel Page
*
* @since 0.0.2
*/
public function add_admin() {
add_submenu_page('themes.php', "Import Demo Data", "Import Demo Data", 'switch_themes', 'radium_demo_installer', array($this, 'demo_installer'));
}
/**
* Avoids adding duplicate meta causing arrays in arrays from WP_importer
*
* @param null $continue
* @param unknown $post_id
* @param unknown $meta_key
* @param unknown $meta_value
* @param unknown $unique
*
* @since 0.0.2
*
* @return
*/
public function check_previous_meta( $continue, $post_id, $meta_key, $meta_value, $unique ) {
$old_value = get_metadata( 'post', $post_id, $meta_key );
if ( count( $old_value ) == 1 ) {
if ( $old_value[0] === $meta_value ) {
return false;
} elseif ( $old_value[0] !== $meta_value ) {
update_post_meta( $post_id, $meta_key, $meta_value );
return false;
}
}
}
/**
* Add Panel Page
*
* @since 0.0.2
*/
public function after_wp_importer() {
do_action( 'radium_importer_after_content_import');
update_option( 'radium_imported_demo', $this->flag_as_imported );
}
public function intro_html() {
?>
<div style="background-color: #F5FAFD; margin:10px 0;padding: 5px 10px;color: #0C518F;border: 2px solid #CAE0F3; clear:both; width:90%; line-height:18px;">
<p class="tie_message_hint">Importing demo data (post, pages, images, theme settings, ...) is the easiest way to setup your theme. It will
allow you to quickly edit everything instead of creating content from scratch. When you import the data following things will happen:</p>
<ul style="padding-left: 20px;list-style-position: inside;list-style-type: square;}">
<li>No existing posts, pages, categories, images, custom post types or any other data will be deleted or modified .</li>
<li>No WordPress settings will be modified .</li>
<li>Posts, pages, some images, some widgets and menus will get imported .</li>
<li>Images will be downloaded from our server, these images are copyrighted and are for demo use only .</li>
<li>Please click import only once and wait, it can take a couple of minutes</li>
</ul>
</div>
<div style="background-color: #F5FAFD; margin:10px 0;padding: 5px 10px;color: #0C518F;border: 2px solid #CAE0F3; clear:both; width:90%; line-height:18px;"><p class="tie_message_hint">Before you begin, make sure all the required plugins are activated.</p></div>
<?php
if( !empty($this->imported_demos) ) { ?>
<div style="background-color: #FAFFFB; margin:10px 0;padding: 5px 10px;color: #8AB38A;border: 2px solid #a1d3a2; clear:both; width:90%; line-height:18px;">
<p><?php _e('Demo already imported', 'radium'); ?></p>
</div><?php
//return;
}
}
public function demo_installer() {
$action = isset($_REQUEST['action']) ? $_REQUEST['action'] : '';
if( !empty($this->imported_demos ) ) {
$button_text = __('Import Again', 'radium');
} else {
$button_text = __('Import Demo Data', 'radium');
}
?><div id="icon-tools" class="icon32"><br></div>
<h2>Import Demo Data</h2>
<div class="radium-importer-wrap" data-demo-id="1" data-nonce="<?php echo wp_create_nonce('radium-demo-code'); ?>">
<form method="post">
<?php $this->intro_html(); ?>
<input type="hidden" name="demononce" value="<?php echo wp_create_nonce('radium-demo-code'); ?>" />
<input name="reset" class="panel-save button-primary radium-import-start" type="submit" value="<?php echo $button_text ; ?>" />
<input type="hidden" name="action" value="demo-data" />
<br />
<br />
<div class="radium-importer-message clear">
<?php if( 'demo-data' == $action && check_admin_referer('radium-demo-code' , 'demononce')){
$this->process_imports();
} ?>
</div>
</form>
</div>
<br />
<br /><?php
}
public function process_imports($mine = true, $content = true, $options = true, $widgets = true) {
if ( $content && !empty( $this->content_demo ) && is_file( $this->content_demo ) ) {
$this->set_demo_data( $this->content_demo );
}
if ( $options && !empty( $this->theme_options_file ) && is_file( $this->theme_options_file ) ) {
$this->set_demo_theme_options( $this->theme_options_file );
}
if ( $options ) {
$this->set_demo_menus();
}
if ( $widgets && !empty( $this->widgets ) && is_file( $this->widgets ) ) {
$this->process_widget_import_file( $this->widgets );
}
if($mine){
$this->import_options();
}
do_action( 'radium_import_end');
}
/** Import Options Hook added by kami*/
public function import_options() {
//$data = $_POST['data'];
$options_export = file_get_contents(get_stylesheet_directory_uri().'/framework/inc/theme-options/theme_options.txt');
$data = $options_export;
$data = base64_decode( $data );
$data = json_decode( $data, true );
if ( isset( $data ) ) {
foreach ( $data as $key => $value ) {
update_option( $key, wp_kses_post( stripcslashes( $value) ) );
}
}
die();
}
/** import action ends **/
/**
* add_widget_to_sidebar Import sidebars
* @param string $sidebar_slug Sidebar slug to add widget
* @param string $widget_slug Widget slug
* @param string $count_mod position in sidebar
* @param array $widget_settings widget settings
*
* @since 0.0.2
*
* @return null
*/
public function add_widget_to_sidebar($sidebar_slug, $widget_slug, $count_mod, $widget_settings = array()){
$sidebars_widgets = get_option('sidebars_widgets');
if(!isset($sidebars_widgets[$sidebar_slug]))
$sidebars_widgets[$sidebar_slug] = array('_multiwidget' => 1);
$newWidget = get_option('widget_'.$widget_slug);
if(!is_array($newWidget))
$newWidget = array();
$count = count($newWidget)+1+$count_mod;
$sidebars_widgets[$sidebar_slug][] = $widget_slug.'-'.$count;
$newWidget[$count] = $widget_settings;
update_option('sidebars_widgets', $sidebars_widgets);
update_option('widget_'.$widget_slug, $newWidget);
}
public function set_demo_data( $file ) {
if ( !defined('WP_LOAD_IMPORTERS') ) define('WP_LOAD_IMPORTERS', true);
require_once ABSPATH . 'wp-admin/includes/import.php';
$importer_error = false;
if ( !class_exists( 'WP_Importer' ) ) {
$class_wp_importer = ABSPATH . 'wp-admin/includes/class-wp-importer.php';
if ( file_exists( $class_wp_importer ) ){
require_once($class_wp_importer);
} else {
$importer_error = true;
}
}
if ( !class_exists( 'WP_Import' ) ) {
$class_wp_import = dirname( __FILE__ ) .'/wordpress-importer.php';
if ( file_exists( $class_wp_import ) )
require_once($class_wp_import);
else
$importer_error = true;
}
if($importer_error){
die("Error on import");
} else {
if(!is_file( $file )){
echo "The XML file containing the dummy content is not available or could not be read .. You might want to try to set the file permission to chmod 755.<br/>If this doesn't work please use the Wordpress importer and import the XML file (should be located in your download .zip: Sample Content folder) manually ";
} else {
$wp_import = new WP_Import();
$wp_import->fetch_attachments = true;
$wp_import->import( $file );
$this->flag_as_imported['content'] = true;
}
}
do_action( 'radium_importer_after_theme_content_import');
}
public function set_demo_menus() {}
public function set_demo_theme_options( $file ) {
// Does the File exist?
if ( file_exists( $file ) ) {
// Get file contents and decode
$data = file_get_contents( $file );
if( $this->theme_options_framework == 'radium') {
//radium framework
$data = unserialize( trim($data, '###') );
} elseif( $this->theme_options_framework == 'optiontree' ) {
//option tree import
$data = $this->optiontree_decode($data);
update_option( ot_options_id(), $data );
$this->flag_as_imported['options'] = true;
} else {
//other frameworks
//$data = json_decode( $data, true );
$data = maybe_unserialize( $data );
}
// Only if there is data
if ( !empty( $data ) || is_array( $data ) ) {
// Hook before import
$data = apply_filters( 'radium_theme_import_theme_options', $data );
update_option( $this->theme_option_name, $data );
$this->flag_as_imported['options'] = true;
}
do_action( 'radium_importer_after_theme_options_import', $this->demo_files_path );
} else {
wp_die(
__( 'Theme options Import file could not be found. Please try again.', 'radium' ),
'',
array( 'back_link' => true )
);
}
}
/**
* Available widgets
*
* Gather site's widgets into array with ID base, name, etc.
* Used by export and import functions.
*
* @since 0.0.2
*
* @global array $wp_registered_widget_updates
* @return array Widget information
*/
function available_widgets() {
global $wp_registered_widget_controls;
$widget_controls = $wp_registered_widget_controls;
$available_widgets = array();
foreach ( $widget_controls as $widget ) {
if ( ! empty( $widget['id_base'] ) && ! isset( $available_widgets[$widget['id_base']] ) ) { // no dupes
$available_widgets[$widget['id_base']]['id_base'] = $widget['id_base'];
$available_widgets[$widget['id_base']]['name'] = $widget['name'];
}
}
return apply_filters( 'radium_theme_import_widget_available_widgets', $available_widgets );
}
/**
* Process import file
*
* This parses a file and triggers importation of its widgets.
*
* @since 0.0.2
*
* @param string $file Path to .wie file uploaded
* @global string $widget_import_results
*/
function process_widget_import_file( $file ) {
// File exists?
if ( ! file_exists( $file ) ) {
wp_die(
__( 'Widget Import file could not be found. Please try again.', 'radium' ),
'',
array( 'back_link' => true )
);
}
// Get file contents and decode
$data = file_get_contents( $file );
$data = json_decode( $data );
// Delete import file
//unlink( $file );
// Import the widget data
// Make results available for display on import/export page
$this->widget_import_results = $this->import_widgets( $data );
}
/**
* Import widget JSON data
*
* @since 0.0.2
* @global array $wp_registered_sidebars
* @param object $data JSON widget data from .json file
* @return array Results array
*/
public function import_widgets( $data ) {
global $wp_registered_sidebars;
// Have valid data?
// If no data or could not decode
if ( empty( $data ) || ! is_object( $data ) ) {
return;
}
// Hook before import
$data = apply_filters( 'radium_theme_import_widget_data', $data );
// Get all available widgets site supports
$available_widgets = $this->available_widgets();
// Get all existing widget instances
$widget_instances = array();
foreach ( $available_widgets as $widget_data ) {
$widget_instances[$widget_data['id_base']] = get_option( 'widget_' . $widget_data['id_base'] );
}
// Begin results
$results = array();
// Loop import data's sidebars
foreach ( $data as $sidebar_id => $widgets ) {
// Skip inactive widgets
// (should not be in export file)
if ( 'wp_inactive_widgets' == $sidebar_id ) {
continue;
}
// Check if sidebar is available on this site
// Otherwise add widgets to inactive, and say so
if ( isset( $wp_registered_sidebars[$sidebar_id] ) ) {
$sidebar_available = true;
$use_sidebar_id = $sidebar_id;
$sidebar_message_type = 'success';
$sidebar_message = '';
} else {
$sidebar_available = false;
$use_sidebar_id = 'wp_inactive_widgets'; // add to inactive if sidebar does not exist in theme
$sidebar_message_type = 'error';
$sidebar_message = __( 'Sidebar does not exist in theme (using Inactive)', 'radium' );
}
// Result for sidebar
$results[$sidebar_id]['name'] = ! empty( $wp_registered_sidebars[$sidebar_id]['name'] ) ? $wp_registered_sidebars[$sidebar_id]['name'] : $sidebar_id; // sidebar name if theme supports it; otherwise ID
$results[$sidebar_id]['message_type'] = $sidebar_message_type;
$results[$sidebar_id]['message'] = $sidebar_message;
$results[$sidebar_id]['widgets'] = array();
// Loop widgets
foreach ( $widgets as $widget_instance_id => $widget ) {
$fail = false;
// Get id_base (remove -# from end) and instance ID number
$id_base = preg_replace( '/-[0-9]+$/', '', $widget_instance_id );
$instance_id_number = str_replace( $id_base . '-', '', $widget_instance_id );
// Does site support this widget?
if ( ! $fail && ! isset( $available_widgets[$id_base] ) ) {
$fail = true;
$widget_message_type = 'error';
$widget_message = __( 'Site does not support widget', 'radium' ); // explain why widget not imported
}
// Filter to modify settings before import
// Do before identical check because changes may make it identical to end result (such as URL replacements)
$widget = apply_filters( 'radium_theme_import_widget_settings', $widget );
// Does widget with identical settings already exist in same sidebar?
if ( ! $fail && isset( $widget_instances[$id_base] ) ) {
// Get existing widgets in this sidebar
$sidebars_widgets = get_option( 'sidebars_widgets' );
$sidebar_widgets = isset( $sidebars_widgets[$use_sidebar_id] ) ? $sidebars_widgets[$use_sidebar_id] : array(); // check Inactive if that's where will go
// Loop widgets with ID base
$single_widget_instances = ! empty( $widget_instances[$id_base] ) ? $widget_instances[$id_base] : array();
foreach ( $single_widget_instances as $check_id => $check_widget ) {
// Is widget in same sidebar and has identical settings?
if ( in_array( "$id_base-$check_id", $sidebar_widgets ) && (array) $widget == $check_widget ) {
$fail = true;
$widget_message_type = 'warning';
$widget_message = __( 'Widget already exists', 'radium' ); // explain why widget not imported
break;
}
}
}
// No failure
if ( ! $fail ) {
// Add widget instance
$single_widget_instances = get_option( 'widget_' . $id_base ); // all instances for that widget ID base, get fresh every time
$single_widget_instances = ! empty( $single_widget_instances ) ? $single_widget_instances : array( '_multiwidget' => 1 ); // start fresh if have to
$single_widget_instances[] = (array) $widget; // add it
// Get the key it was given
end( $single_widget_instances );
$new_instance_id_number = key( $single_widget_instances );
// If key is 0, make it 1
// When 0, an issue can occur where adding a widget causes data from other widget to load, and the widget doesn't stick (reload wipes it)
if ( '0' === strval( $new_instance_id_number ) ) {
$new_instance_id_number = 1;
$single_widget_instances[$new_instance_id_number] = $single_widget_instances[0];
unset( $single_widget_instances[0] );
}
// Move _multiwidget to end of array for uniformity
if ( isset( $single_widget_instances['_multiwidget'] ) ) {
$multiwidget = $single_widget_instances['_multiwidget'];
unset( $single_widget_instances['_multiwidget'] );
$single_widget_instances['_multiwidget'] = $multiwidget;
}
// Update option with new widget
update_option( 'widget_' . $id_base, $single_widget_instances );
// Assign widget instance to sidebar
$sidebars_widgets = get_option( 'sidebars_widgets' ); // which sidebars have which widgets, get fresh every time
$new_instance_id = $id_base . '-' . $new_instance_id_number; // use ID number from new widget instance
$sidebars_widgets[$use_sidebar_id][] = $new_instance_id; // add new instance to sidebar
update_option( 'sidebars_widgets', $sidebars_widgets ); // save the amended data
// Success message
if ( $sidebar_available ) {
$widget_message_type = 'success';
$widget_message = __( 'Imported', 'radium' );
} else {
$widget_message_type = 'warning';
$widget_message = __( 'Imported to Inactive', 'radium' );
}
}
// Result for widget instance
$results[$sidebar_id]['widgets'][$widget_instance_id]['name'] = isset( $available_widgets[$id_base]['name'] ) ? $available_widgets[$id_base]['name'] : $id_base; // widget name or ID if name not available (not supported by site)
$results[$sidebar_id]['widgets'][$widget_instance_id]['title'] = $widget->title ? $widget->title : __( 'No Title', 'radium' ); // show "No Title" if widget instance is untitled
$results[$sidebar_id]['widgets'][$widget_instance_id]['message_type'] = $widget_message_type;
$results[$sidebar_id]['widgets'][$widget_instance_id]['message'] = $widget_message;
}
}
$this->flag_as_imported['widgets'] = true;
// Hook after import
do_action( 'radium_theme_import_widget_after_import' );
// Return results
return apply_filters( 'radium_theme_import_widget_results', $results );
}
/**
* Helper function to return option tree decoded strings
*
* @return string
*
* @access public
* @since 0.0.3
* @updated 0.0.3.1
*/
public function optiontree_decode( $value ) {
$func = 'base64' . '_decode';
$prepared_data = maybe_unserialize( $func( $value ) );
return $prepared_data;
}
}//class
}//function_exists
＆GT;