apply_filters( ‘post_class’, string[] $classes, string[] $css_class, int $post_id )

User Contributed Notes

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   Aurovrata Venet 9 years ago

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   Custom classes for post table rows.

   This filter can be used to add additional classes to the rows of post in any edit.php post page of the dashboard,

   add_filter('post_class', 'set_row_post_class', 10,3); function set_row_post_class($classes, $class, $post_id){ if (!is_admin()) { //make sure we are in the dashboard return $classes; } $screen = get_current_screen(); //verify which page we're on if ('my-custom-type' != $screen->post_type && 'edit' != $screen->base) { return $classes; } //check if some meta field is set $profile_incomplete = get_post_meta($post_id, 'profile_incomplete', true); if ('yes' == $profile_incomplete) { $classes[] = 'profile_incomplete'; //add a custom class to highlight this row in the table } // Return the array return $classes; }
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   Aurovrata Venet 9 years ago

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   The filter is called when ever the function get_post_class($class, $post_id) is called. It is called at the end of the of function.
   Internally WordPress will call this function in many places, including the admin dashboard pages. The filter allows you to filter the Array $classes which will be added to the page.
   Furthermore, the classes passed to the function call by say a plugin or a template will be passed as the 2nd parameter $class, and finally the third parameter is the ID of the post object being processed by the function.