Ticket #4346: jkw1.php

<?php

class JeromesKeywordV1_Import {
        
        function header()  {
                echo '<div class="wrap">';
                echo '<h2>'.__('Import Jerome&#8217;s Keywords').'</h2>';
                echo '<p>'.__('Steps may take a few minutes depending on the size of your database. Please be patient.').'<br /><br /></p>';
        }

        function footer() {
                echo '</div>';
        }

        function greet() {
                echo '<div class="narrow">';
                echo '<p>'.__('Howdy! This imports tags from an existing Jerome&#8217;s Keywords 1.x installation into this blog using the new WordPress native tagging structure.').'</p>';
                echo '<p>'.__('This is not suitable for Jerome&#8217;s Keywords version 2.x.').'</p>';
                echo '<p><strong>'.__('Don&#8217;t be stupid - backup your database before proceeding!').'</strong></p>';
                echo '<p><em>'.__('Source code is modified from Ultimate Tag Warrior importer (utw.php)').'</em></p>';
                echo '<form action="admin.php?import=jkw1&amp;step=1" method="post">';
                echo '<p class="submit"><input type="submit" name="submit" value="'.__('Next &raquo;').'" /></p>';
                echo '</form>';
                echo '</div>';
        }

        
        function dispatch () {
                if ( empty( $_GET['step'] ) ) {
                        $step = 0;
                } else {
                        $step = (int) $_GET['step'];
                }
                
                // load the header
                $this->header();
                
                switch ( $step ) {
                        case 0 :
                                $this->greet();
                                break;
                        case 1 :
                                $this->check_post_keyword( true );
                                break;
                        case 2 :
                                $this->check_post_keyword( false );
                                break;
                        case 3:
                                $this->cleanup_import();
                                break;
                }
                
                // load the footer
                $this->footer();
        }
        
        
        function check_post_keyword ( $precheck = true ) {
                global $wpdb;
                
                echo '<div class="narrow">';
                echo '<p><h3>'.__('Reading Jerome&#8217;s Keywords Tags&#8230;').'</h3></p>';
                
                // import Jerome's Keywords tags 
                $qry = "SELECT post_id, meta_id, meta_key, meta_value
                        FROM $wpdb->postmeta
                        WHERE $wpdb->postmeta.meta_key = 'keywords'";
                $metakeys = $wpdb->get_results($qry);
                if ( !is_array($metakeys)) {
                        echo '<p>' . __('No Tags Found!') . '</p>';
                        return false;           
                }
                else {
                    $count = count($metakeys);
                    echo '<p>' . sprintf( __('Done! <strong>%s</strong> posts with tags were read.'), $count ) . '<br /></p>';
                        
                    echo '<ul>';

                    foreach($metakeys as $post_meta) {
                        if ($post_meta->meta_value != '') {
                            $post_keys = explode(',', $post_meta->meta_value);
                            foreach($post_keys as $keyword) {
                                $keyword = addslashes(trim($keyword));
                                if ($keyword != '')
                                    echo '<li>' . $post_meta->post_id . '&nbsp;-&nbsp;' . $keyword . '</li>';
                                    if( !$precheck ){
                                        wp_add_post_tags($post_meta->post_id, $keyword);
                                    }
                            }
                        }
                        if( !$precheck ){
                            delete_post_meta($post_meta->post_id, 'keywords');
                        }
                    }

                    echo '</ul>';

                }
                
                echo '<form action="admin.php?import=jkw1&amp;step='.($precheck? 2:3).'" method="post">';
                echo '<p class="submit"><input type="submit" name="submit" value="'.__('Next &raquo;').'" /></p>';
                echo '</form>';
                echo '</div>';
        }


        function cleanup_import ( ) {
                
                
                $this->done();
                
        }
        
        
        function done ( ) {
                
                echo '<div class="narrow">';
                echo '<p><h3>'.__('Import Complete!').'</h3></p>';              
                echo '</div>';
                
        }
        

        function JeromesKeywordV1_Import ( ) {
                
                // Nothing.
                
        }
        
}


// create the import object
$jkw1_import = new JeromesKeywordV1_Import();

// add it to the import page!
register_importer('jkw1', 'Jerome&#8217;s keyword', __('Import Jerome&#8217;s keyword into the new native tagging structure.'), array($jkw1_import, 'dispatch'));

?>