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WordPress Widget: Display Single Post

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A simple widget for displaying a single post in a dynamic sidebar. Originally developed to accommodate a WP user who wanted full control of which posts were displayed and what order they were on a certain page.

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  1. <?php
  2. /*
  3. Plugin Name: Single Post
  4. Plugin URI: http://ch4ze.com
  5. Description: Define a widget for displaying a single post
  6. Author: Chase Crawford
  7. Author URI: http://ch4ze.com
  8. Version: 0.1
  9. */
  10.  
  11.  
  12. class singlePostWidget extends WP_Widget
  13. {
  14.   function singlePostWidget()
  15.   {
  16.     $widget_ops = array('classname' => 'singlePostWidget', 'description' => 'Displays a single post' );
  17.     $this->WP_Widget('singlePostWidget', 'Single Post', $widget_ops);
  18.   }
  19.  
  20.   function form($instance)
  21.   {
  22.     $instance = wp_parse_args( (array) $instance, array( 'pid' => '' ) );
  23.     $pid = $instance['pid'];
  24.     if($pid == '') {
  25.  
  26.     $args = array(
  27. 	    'post_type' => 'post'
  28.     );
  29.     $the_query = new WP_Query($args);
  30.     print '<select name="' . $this->get_field_name('pid') . '"><option value ="">Choose a post to display</option>';
  31.     while ( $the_query->have_posts() ) :
  32. 	  $the_query->the_post();
  33.  
  34.       print '<option value="' . get_the_ID() . '">' . get_the_title() . '</option>';
  35.  
  36.     endwhile;
  37.     print '</select>';
  38.  
  39.     } else {
  40.  
  41.     $post = query_posts('p=' . $pid);
  42.     while ( have_posts() ) : the_post();
  43.  
  44.       print "<strong>" . get_the_title() . "</strong>";
  45.  
  46.     endwhile;
  47.  
  48.     }
  49.  
  50.   }
  51.  
  52.   function update($new_instance, $old_instance)
  53.   {
  54.     $instance = $old_instance;
  55.     $instance['pid'] = $new_instance['pid'];
  56.     return $instance;
  57.   }
  58.  
  59.   function widget($args, $instance)
  60.   {
  61.     extract($args, EXTR_SKIP);
  62.  
  63.     $post = query_posts('p=' . $instance['pid']);
  64.     while ( have_posts() ) : the_post();
  65.  
  66.       /*=======================================================
  67.            add template code to display your post here
  68.       =======================================================*/
  69.  
  70.     endwhile;
  71.  
  72.  
  73.   }
  74.  
  75. }
  76. add_action( 'widgets_init', create_function('', 'return register_widget("singlePostWidget");') );?>

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