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   1  <?php
   2  
   3  class BunnyTags_Import {
   4  
   5  	function header() {
   6          echo '<div class="wrap">';
   7          echo '<h2>'.__('Import Bunny&#8217;s Technorati Tags').'</h2>';
   8          echo '<p>'.__('Steps may take a few minutes depending on the size of your database. Please be patient.').'<br /><br /></p>';
   9      }
  10  
  11  	function footer() {
  12          echo '</div>';
  13      }
  14  
  15  	function greet() {
  16          echo '<div class="narrow">';
  17          echo '<p>'.__('Howdy! This imports tags from an existing Bunny&#8217;s Technorati Tags installation into this blog using the new WordPress native tagging structure.').'</p>';
  18          echo '<p>'.__('This is suitable for Bunny&#8217;s Technorati Tags version 0.6.').'</p>';
  19          echo '<p><strong>'.__('All existing Bunny&#8217;s Technorati Tags will be removed after import.').'</strong></p>';
  20          echo '<p><strong>'.__('Don&#8217;t be stupid - backup your database before proceeding!').'</strong></p>';
  21          echo '<form action="admin.php?import=btt&amp;step=1" method="post">';
  22          wp_nonce_field('import-btt');
  23          echo '<p class="submit"><input type="submit" name="submit" value="'.__('Import Tags &raquo;').'" /></p>';
  24          echo '</form>';
  25          echo '</div>';
  26      }
  27  
  28  	function dispatch() {
  29          if ( empty($_GET['step']) )
  30              $step = 0;
  31          else
  32              $step = abs(intval($_GET['step']));
  33  
  34          // load the header
  35          $this->header();
  36  
  37          switch ( $step ) {
  38              case 0 :
  39                  $this->greet();
  40                  break;
  41              case 1 :
  42                  check_admin_referer('import-btt');
  43                  $this->check_post_keyword( true );
  44                  break;
  45              case 2 :
  46                  check_admin_referer('import-btt');
  47                  $this->check_post_keyword( false );
  48                  break;
  49              case 3:
  50                  $this->done();
  51                  break;
  52          }
  53  
  54          // load the footer
  55          $this->footer();
  56      }
  57  
  58  	function check_post_keyword($precheck = true) {
  59          global $wpdb;
  60  
  61          echo '<div class="narrow">';
  62          echo '<p><h3>'.__('Reading Bunny&#8217;s Technorati Tags&#8230;').'</h3></p>';
  63  
  64          // import Bunny's Keywords tags 
  65          $metakeys = $wpdb->get_results("SELECT post_id, meta_id, meta_key, meta_value FROM $wpdb->postmeta WHERE $wpdb->postmeta.meta_key = 'tags'");
  66          if ( !is_array($metakeys)) {
  67              echo '<p>' . __('No Tags Found!') . '</p>';
  68              return false;
  69          } else {
  70              $count = count($metakeys);
  71              echo '<p>' . sprintf( __('Done! <strong>%s</strong> posts with tags were read.'), $count ) . '<br /></p>';
  72              echo '<ul>';
  73              foreach ( $metakeys as $post_meta ) {
  74                  if ( $post_meta->meta_value != '' ) {
  75                      $post_keys = explode(' ', $post_meta->meta_value);
  76                      foreach ( $post_keys as $keyword ) {
  77                          $keyword = addslashes(trim(str_replace('+',' ',$keyword)));
  78                          if ( '' != $keyword ) {
  79                              echo '<li>' . $post_meta->post_id . '&nbsp;-&nbsp;' . $keyword . '</li>';
  80                              if ( !$precheck )
  81                                  wp_add_post_tags($post_meta->post_id, $keyword);
  82                          }
  83                      }
  84                  }
  85                  if ( !$precheck )
  86                      delete_post_meta($post_meta->post_id, 'tags');
  87              }
  88              echo '</ul>';
  89          }
  90  
  91          echo '<form action="admin.php?import=btt&amp;step='.($precheck? 2:3).'" method="post">';
  92          wp_nonce_field('import-btt');
  93          echo '<p class="submit"><input type="submit" name="submit" value="'.__('Next &raquo;').'" /></p>';
  94          echo '</form>';
  95          echo '</div>';
  96      }
  97  
  98  	function done() {
  99          echo '<div class="narrow">';
 100          echo '<p><h3>'.__('Import Complete!').'</h3></p>';
 101          echo '</div>';
 102      }
 103  
 104  	function BunnyTags_Import() {
 105      }
 106  
 107  }
 108  
 109  // create the import object
 110  $btt_import = new BunnyTags_Import();
 111  
 112  // add it to the import page!
 113  register_importer('btt', 'Bunny&#8217;s Technorati Tags', __('Import Bunny&#8217;s Technorati Tags into the new native tagging structure.'), array($btt_import, 'dispatch'));
 114  
 115  ?>