WordPress: Custom loop to exclude post id assigned within widget $args

4 comments

1. 1. How to get the post_id value?

   WordPress stores widget data in the options table with option_name is widget_{$id_base}. Example, when you construct a widget like this:

   function __construct() {
       parent::__construct('so37244516-widget',
           __('A label', 'text-domain'), [
           'classname'   => 'so37244516-widget-class',
           'description' => __('Some descriptions', 'text-domain')
       ]);
   }
   

   The option_name should be widget_so37244516-widget. Then to retrieve the widget data, we just need to use:

   $data = get_option('widget_so37244516-widget');
   

   But, because a widget can have multiple instances, $data is an associative array with unpredictable keys. (Each time we drag a widget into a sidebar and save it, a new instance of the widget is returned).

   So if there’s only one instance of the widget throughout your site, $data[2]['post_id'] is the value we need. And if there’re multiple instances, we need to loop through $data, compare some keys and values to find out the correct one. As always, var_dump($data) is very helpful.

   2. Exclude the post of post_id from the loop.

   Suppose $exclude_id is the value we got from step 1.

   1. You’re doing a custom loop, use @hemnath_mouli’s method:

   $query = new WP_Query([
       'post__not_in' => [$exclude_id]
   ]);
   
   if ( $query->have_posts() ) :
       while ( $query->have_posts() ) : $query->the_post();
           // Do loop.
       endwhile;
       wp_reset_query(); // Must have.
   else :
       // Do something.
   endif;
   

   Remember to do wp_reset_query().

   2. You’re using default loop, try @Deepti_chipdey’s method in your functions.php:

   add_action('pre_get_posts', function($query)
   {
       if ( $query->is_home() && $query->is_main_query() ) {
           $query->set('post__not_in', [$exclude_id]);
       }
   });
   

   Make sure to change is_home() to your preference page.

2. You need to use pre get posts hook.

   Tyr this code

   function exclude_single_posts_home($query) {
     if ($query->is_home() && $query->is_main_query()) {
       $query->set('post__not_in', array($post));
      }
   }
   
   add_action('pre_get_posts', 'exclude_single_posts_home');
   

3. If you want to exclide a post, then you must use post__not_in in WP_Query

   $post = new WP_Query( array( 'post__not_in' => array( $exclude_ids ) ) );

   Hope this would help you.!

4. If you want to Exclude a single post follow the steps which mentioned above

   But unless you give post id by separately just made all post which you want to to exclude in a category and exclude it by simple way.

   Exclude Posts From Some Category

       <?php $query = new WP_Query( 'cat=-3,-8' ); ?>// 3 and 8 are category id
   

   Detailed example

       <?php $query = new WP_Query( 'cat=-3,-8' ); ?>
       <?php if ( $query->have_posts() ) : while ( $query->have_posts() ) : $query->the_post(); ?>
   
       <div class="post">
   
       <!-- Display the Title as a link to the Post's permalink. -->
        <h2><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></h2>
   
       <!-- Display the date (November 16th, 2009 format) and a link to other posts by this posts author. -->
      <small><?php the_time( 'F jS, Y' ); ?> by <?php the_author_posts_link(); ?></small>
   
       <div class="entry">
        <?php the_content(); ?>
       </div>
   
        <p class="postmetadata"><?php _e( 'Posted in' ); ?> <?php the_category( ', ' ); ?></p>
        </div> <!-- closes the first div box -->
   
        <?php endwhile; 
             wp_reset_postdata();
             else : ?>
             <p><?php _e( 'Sorry, no posts matched your criteria.' ); ?></p>
         <?php endif; ?>
   

   Referrence link:Click me

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