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<?php |
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/* |
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Plugin Name: Custom Post Widget |
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Plugin URI: http://www.vanderwijk.com/services/web-design/wordpress-custom-post-widget/ |
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Description: Show the content of a custom post of the type 'content_block' in a widget. |
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Version: 1.0 |
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Author: Johan van der Wijk |
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Author URI: http://www.vanderwijk.com |
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|
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Release notes: 1.0 First version |
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|
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*/ |
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|
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// First create the widget for the admin panel |
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class custom_post_widget extends WP_Widget |
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{ |
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function custom_post_widget() |
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{ |
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$widget_ops = array('description' => __('Displays custom post content in a widget')); |
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$this->WP_Widget('custom_post_widget', __('Content Block'), $widget_ops); |
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} |
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|
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function form($instance) |
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{ |
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$custom_post_id = esc_attr($instance['custom_post_id']); |
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|
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?> |
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<p> |
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<label for="<?php echo $this->get_field_id('custom_post_id'); ?>"> <?php echo __('Content Block to Display:') ?> |
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<select id="<?php echo $this->get_field_id('custom_post_id'); ?>" name="<?php echo $this->get_field_name('custom_post_id'); ?>"> |
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<?php query_posts('post_type=content_block&orderby=ID&order=ASC'); |
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if ( have_posts() ) : while ( have_posts() ) : the_post(); |
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$currentID = get_the_ID(); |
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if($currentID == $custom_post_id) |
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$extra = 'selected'; |
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else |
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$extra = ''; |
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echo '<option value="'.$currentID.'" '.$extra.'>'.get_the_title().'</option>'; |
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endwhile; else: |
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echo '<option value="empty">No content blocks available</option>'; |
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endif; |
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wp_reset_query(); ?> |
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</select> |
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</label> |
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</p><?php |
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} |
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|
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function update($new_instance, $old_instance) |
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{ |
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$instance = $old_instance; |
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$instance['custom_post_id'] = strip_tags($new_instance['custom_post_id']); |
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return $instance; |
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} |
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|
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function widget($args, $instance) |
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{ |
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extract($args); |
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|
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$custom_post_id = ( $instance['custom_post_id'] != '' ) ? esc_attr($instance['custom_post_id']) : 'Zoeken'; |
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|
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// Output title & $before_widget |
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echo $title . $before_widget; |
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|
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// Output the query to find the custom post |
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query_posts( 'post_type=content_block&p=' . $custom_post_id ); |
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while (have_posts()) : the_post(); |
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echo the_content(); |
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endwhile; |
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wp_reset_query(); |
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|
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// Output $after_widget |
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echo $after_widget; |
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} |
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} |
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add_action('widgets_init', create_function('', 'return register_widget("custom_post_widget");')); |
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|
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// Create the Content Block custom post type |
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|
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add_action('init', 'my_content_block_post_type_init'); |
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|
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function my_content_block_post_type_init() |
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{ |
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$labels = array( |
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'name' => _x('Content Blocks', 'post type general name'), |
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'singular_name' => _x('Content Block', 'post type singular name'), |
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'add_new' => _x('Add Content Block', 'block'), |
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'add_new_item' => __('Add New Content Block'), |
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'edit_item' => __('Edit Content Block'), |
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'new_item' => __('New Content Block'), |
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'view_item' => __('View Content Block'), |
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'search_items' => __('Search Content Blocks'), |
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'not_found' => __('No Content Blocks Found'), |
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'not_found_in_trash' => __('No Content Blocks found in Trash'), |
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'parent_item_colon' => '' |
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); |
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$options = array( |
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'labels' => $labels, |
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'public' => false, |
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'publicly_queryable' => false, |
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'exclude_from_search' => true, |
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'show_ui' => true, |
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'query_var' => true, |
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'rewrite' => true, |
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'capability_type' => 'post', |
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'hierarchical' => false, |
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'menu_position' => null, |
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'supports' => array('title','editor','revisions','thumbnail') |
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); |
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register_post_type('content_block',$options); |
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} |
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|
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add_filter('post_updated_messages', 'content_block_messages'); |
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|
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function content_block_messages( $messages ) { |
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|
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$messages['content_block'] = array( |
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0 => '', |
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1 => sprintf( __('Content Block updated. <a href="%s">View Content Block</a>'), esc_url( get_permalink($post_ID) ) ), |
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2 => __('Custom field updated.'), |
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3 => __('Custom field deleted.'), |
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4 => __('Content Block updated.'), |
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5 => isset($_GET['revision']) ? sprintf( __('Content Block restored to revision from %s'), wp_post_revision_title( (int) $_GET['revision'], false ) ) : false, |
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6 => sprintf( __('Content Block published. <a href="%s">View Content Block</a>'), esc_url( get_permalink($post_ID) ) ), |
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7 => __('Block saved.'), |
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8 => sprintf( __('Content Block submitted. <a target="_blank" href="%s">Preview Content Block</a>'), esc_url( add_query_arg( 'preview', 'true', get_permalink($post_ID) ) ) ), |
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9 => sprintf( __('Content Block scheduled for: <strong>%1$s</strong>. <a target="_blank" href="%2$s">Preview block</a>'), |
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date_i18n( __( 'M j, Y @ G:i' ), strtotime( $post->post_date ) ), esc_url( get_permalink($post_ID) ) ), |
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10 => sprintf( __('Content Block draft updated. <a target="_blank" href="%s">Preview Content Block</a>'), esc_url( add_query_arg( 'preview', 'true', get_permalink($post_ID) ) ) ), |
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); |
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|
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return $messages; |
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} |
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|
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?> |
