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   1  <?php
   2  /**
   3   * WordPress Export Administration Screen
   4   *
   5   * @package WordPress
   6   * @subpackage Administration
   7   */
   8  
   9  /** Load WordPress Bootstrap */
  10  require_once  ('admin.php');
  11  
  12  if ( !current_user_can('export') )
  13      wp_die(__('You do not have sufficient permissions to export the content of this site.'));
  14  
  15  /** Load WordPress export API */
  16  require_once ('./includes/export.php');
  17  $title = __('Export');
  18  
  19  function add_js() {
  20  ?>
  21  <script type="text/javascript">
  22  //<![CDATA[
  23      jQuery(document).ready(function($){
  24           var form = $('#export-filters'),
  25               filters = form.find('.export-filters');
  26           filters.hide();
  27           form.find('input:radio').change(function() {
  28              filters.slideUp('fast');
  29              switch ( $(this).val() ) {
  30                  case 'posts': $('#post-filters').slideDown(); break;
  31                  case 'pages': $('#page-filters').slideDown(); break;
  32              }
  33           });
  34      });
  35  //]]>
  36  </script>
  37  <?php
  38  }
  39  add_action( 'admin_head', 'add_js' );
  40  
  41  get_current_screen()->add_help_tab( array(
  42      'id'      => 'overview',
  43      'title'   => __('Overview'),
  44      'content' => '<p>' . __('You can export a file of your site&#8217;s content in order to import it into another installation or platform. The export file will be an XML file format called WXR. Posts, pages, comments, custom fields, categories, and tags can be included. You can choose for the WXR file to include only certain posts or pages by setting the dropdown filters to limit the export by category, author, date range by month, or publishing status.') . '</p>' .
  45          '<p>' . __('Once generated, your WXR file can be imported by another WordPress site or by another blogging platform able to access this format.') . '</p>',
  46  ) );
  47  
  48  get_current_screen()->set_help_sidebar(
  49      '<p><strong>' . __('For more information:') . '</strong></p>' .
  50      '<p>' . __('<a href="http://codex.wordpress.org/Tools_Export_Screen" target="_blank">Documentation on Export</a>') . '</p>' .
  51      '<p>' . __('<a href="http://wordpress.org/support/" target="_blank">Support Forums</a>') . '</p>'
  52  );
  53  
  54  if ( isset( $_GET['download'] ) ) {
  55      $args = array();
  56  
  57      if ( ! isset( $_GET['content'] ) || 'all' == $_GET['content'] ) {
  58          $args['content'] = 'all';
  59      } else if ( 'posts' == $_GET['content'] ) {
  60          $args['content'] = 'post';
  61  
  62          if ( $_GET['cat'] )
  63              $args['category'] = (int) $_GET['cat'];
  64  
  65          if ( $_GET['post_author'] )
  66              $args['author'] = (int) $_GET['post_author'];
  67  
  68          if ( $_GET['post_start_date'] || $_GET['post_end_date'] ) {
  69              $args['start_date'] = $_GET['post_start_date'];
  70              $args['end_date'] = $_GET['post_end_date'];
  71          }
  72  
  73          if ( $_GET['post_status'] )
  74              $args['status'] = $_GET['post_status'];
  75      } else if ( 'pages' == $_GET['content'] ) {
  76          $args['content'] = 'page';
  77  
  78          if ( $_GET['page_author'] )
  79              $args['author'] = (int) $_GET['page_author'];
  80  
  81          if ( $_GET['page_start_date'] || $_GET['page_end_date'] ) {
  82              $args['start_date'] = $_GET['page_start_date'];
  83              $args['end_date'] = $_GET['page_end_date'];
  84          }
  85  
  86          if ( $_GET['page_status'] )
  87              $args['status'] = $_GET['page_status'];
  88      } else {
  89          $args['content'] = $_GET['content'];
  90      }
  91  
  92      export_wp( $args );
  93      die();
  94  }
  95  
  96  require_once  ('admin-header.php');
  97  
  98  function export_date_options( $post_type = 'post' ) {
  99      global $wpdb, $wp_locale;
 100  
 101      $months = $wpdb->get_results( $wpdb->prepare( "
 102          SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month
 103          FROM $wpdb->posts
 104          WHERE post_type = %s AND post_status != 'auto-draft'
 105          ORDER BY post_date DESC
 106      ", $post_type ) );
 107  
 108      $month_count = count( $months );
 109      if ( !$month_count || ( 1 == $month_count && 0 == $months[0]->month ) )
 110          return;
 111  
 112      foreach ( $months as $date ) {
 113          if ( 0 == $date->year )
 114              continue;
 115  
 116          $month = zeroise( $date->month, 2 );
 117          echo '<option value="' . $date->year . '-' . $month . '">' . $wp_locale->get_month( $month ) . ' ' . $date->year . '</option>';
 118      }
 119  }
 120  ?>
 121  
 122  <div class="wrap">
 123  <?php screen_icon(); ?>
 124  <h2><?php echo esc_html( $title ); ?></h2>
 125  
 126  <p><?php _e('When you click the button below WordPress will create an XML file for you to save to your computer.'); ?></p>
 127  <p><?php _e('This format, which we call WordPress eXtended RSS or WXR, will contain your posts, pages, comments, custom fields, categories, and tags.'); ?></p>
 128  <p><?php _e('Once you&#8217;ve saved the download file, you can use the Import function in another WordPress installation to import the content from this site.'); ?></p>
 129  
 130  <h3><?php _e( 'Choose what to export' ); ?></h3>
 131  <form action="" method="get" id="export-filters">
 132  <input type="hidden" name="download" value="true" />
 133  <p><label><input type="radio" name="content" value="all" checked="checked" /> <?php _e( 'All content' ); ?></label></p>
 134  <p class="description"><?php _e( 'This will contain all of your posts, pages, comments, custom fields, terms, navigation menus and custom posts.' ); ?></p>
 135  
 136  <p><label><input type="radio" name="content" value="posts" /> <?php _e( 'Posts' ); ?></label></p>
 137  <ul id="post-filters" class="export-filters">
 138      <li>
 139          <label><?php _e( 'Categories:' ); ?></label>
 140          <?php wp_dropdown_categories( array( 'show_option_all' => __('All') ) ); ?>
 141      </li>
 142      <li>
 143          <label><?php _e( 'Authors:' ); ?></label>
 144  <?php
 145          $authors = $wpdb->get_col( "SELECT DISTINCT post_author FROM {$wpdb->posts} WHERE post_type = 'post'" );
 146          wp_dropdown_users( array( 'include' => $authors, 'name' => 'post_author', 'multi' => true, 'show_option_all' => __('All') ) );
 147  ?>
 148      </li>
 149      <li>
 150          <label><?php _e( 'Date range:' ); ?></label>
 151          <select name="post_start_date">
 152              <option value="0"><?php _e( 'Start Date' ); ?></option>
 153              <?php export_date_options(); ?>
 154          </select>
 155          <select name="post_end_date">
 156              <option value="0"><?php _e( 'End Date' ); ?></option>
 157              <?php export_date_options(); ?>
 158          </select>
 159      </li>
 160      <li>
 161          <label><?php _e( 'Status:' ); ?></label>
 162          <select name="post_status">
 163              <option value="0"><?php _e( 'All' ); ?></option>
 164              <?php $post_stati = get_post_stati( array( 'internal' => false ), 'objects' );
 165              foreach ( $post_stati as $status ) : ?>
 166              <option value="<?php echo esc_attr( $status->name ); ?>"><?php echo esc_html( $status->label ); ?></option>
 167              <?php endforeach; ?>
 168          </select>
 169      </li>
 170  </ul>
 171  
 172  <p><label><input type="radio" name="content" value="pages" /> <?php _e( 'Pages' ); ?></label></p>
 173  <ul id="page-filters" class="export-filters">
 174      <li>
 175          <label><?php _e( 'Authors:' ); ?></label>
 176  <?php
 177          $authors = $wpdb->get_col( "SELECT DISTINCT post_author FROM {$wpdb->posts} WHERE post_type = 'page'" );
 178          wp_dropdown_users( array( 'include' => $authors, 'name' => 'page_author', 'multi' => true, 'show_option_all' => __('All') ) );
 179  ?>
 180      </li>
 181      <li>
 182          <label><?php _e( 'Date range:' ); ?></label>
 183          <select name="page_start_date">
 184              <option value="0"><?php _e( 'Start Date' ); ?></option>
 185              <?php export_date_options( 'page' ); ?>
 186          </select>
 187          <select name="page_end_date">
 188              <option value="0"><?php _e( 'End Date' ); ?></option>
 189              <?php export_date_options( 'page' ); ?>
 190          </select>
 191      </li>
 192      <li>
 193          <label><?php _e( 'Status:' ); ?></label>
 194          <select name="page_status">
 195              <option value="0"><?php _e( 'All' ); ?></option>
 196              <?php foreach ( $post_stati as $status ) : ?>
 197              <option value="<?php echo esc_attr( $status->name ); ?>"><?php echo esc_html( $status->label ); ?></option>
 198              <?php endforeach; ?>
 199          </select>
 200      </li>
 201  </ul>
 202  
 203  <?php foreach ( get_post_types( array( '_builtin' => false, 'can_export' => true ), 'objects' ) as $post_type ) : ?>
 204  <p><label><input type="radio" name="content" value="<?php echo esc_attr( $post_type->name ); ?>" /> <?php echo esc_html( $post_type->label ); ?></label></p>
 205  <?php endforeach; ?>
 206  
 207  <?php submit_button( __('Download Export File'), 'secondary' ); ?>
 208  </form>
 209  </div>
 210  
 211  <?php include ('admin-footer.php'); ?>