Add new column to sites page

2 comments

1. here is a modified version of your class that should work:

   class Add_Blog_ID {
       public static function init() {
           $class = __CLASS__ ;
           if ( empty( $GLOBALS[ $class ] ) )
               $GLOBALS[ $class ] = new $class;
       }
       public function __construct() {
           add_filter( 'wpmu_blogs_columns', array( $this, 'get_id' ) );
           add_action( 'manage_sites_custom_column', array( $this, 'add_columns' ), 10, 2 );
           add_action( 'manage_blogs_custom_column', array( $this, 'add_columns' ), 10, 2 );
           add_action( 'admin_footer', array( $this, 'add_style' ) );
       }
       public function add_columns( $column_name, $blog_id ) {
           if ( 'blog_id' === $column_name ){
               echo $blog_id;
               //render column value
           }elseif( 'blog_expire' === $column_name ){
               echo get_blog_option($blog_id,'blog_expire',"Default Value To Show if none");
           }
           return $column_name;
       }
       // Add in a column header
       public function get_id( $columns ) {
           $columns['blog_id'] = __('ID');
           //add extra header to table
           $columns['blog_expire'] = __('Blog Expires');
   
           return $columns;
       }
       public function add_style() {
           echo '<style>#blog_id { width:7%; }</style>';
       }
   }
   add_action( 'init', array( 'Add_Blog_ID', 'init' ) );
   

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2. This is not an answer to the question, but an extra feature to JonnyPlow & Bainternet code.

   I wanted the ID column at the beginning, not the end. This can be achieved this way:

   public function get_id( $columns ) {
       $columns['blog_expire'] = __('Blog Expires');
       $in = array('blog_id' => 'ID');
       $columns = $in + $columns; // array_unshift don't work here, don't ask me why
       return $columns;
   }
   

   But, if we want to fine tune and put it as the second (or 3rd) column, then an extra function comes handy.

   • although the admin_footer is harmless in other screens, I put the correct suffix for only loading in sites.php
   • as blog_expire was not rendering anything for me, I changed to template for a quick view of what theme each site is using.

   class Add_Blog_ID {
       public static function init() {
           $class = __CLASS__ ;
           if ( empty( $GLOBALS[ $class ] ) )
               $GLOBALS[ $class ] = new $class;
       }
       public function __construct() {
           add_filter( 'wpmu_blogs_columns', array( $this, 'get_id' ) );
           add_action( 'manage_sites_custom_column', array( $this, 'add_columns' ), 10, 2 );
           add_action( 'manage_blogs_custom_column', array( $this, 'add_columns' ), 10, 2 );
           add_action( 'admin_footer-sites.php', array( $this, 'add_style' ) );
       }
   
       private function array_put_to_position(&$array, $object, $position, $name = null) {
           $count = 0;
           $return = array();
           foreach ($array as $k => $v) {  
                   // insert new object
                   if ($count == $position) {  
                           if (!$name) $name = $count;
                           $return[$name] = $object;
                           $inserted = true;
                   }  
                   // insert old object
                   $return[$k] = $v;
                   $count++;
           }  
           if (!$name) $name = $count;
           if (!$inserted) $return[$name];
           $array = $return;
           return $array;
       }
   
       public function add_columns( $column_name, $blog_id ) {
           if ( 'blog_id' === $column_name ) {
               echo $blog_id;
               //render column value
           } elseif ( 'template' === $column_name ) {
               echo get_blog_option($blog_id, 'template', "Default Value To Show if none");
           }
           return $column_name;
       }
       // Add in a column header
       public function get_id( $columns ) {
           $columns = $this->array_put_to_position($columns, 'ID', 1, 'blog_id');
           $columns['template'] = __('Using Theme');
           return $columns;
       }
   
       public function add_style() {
           echo '<style>#blog_id { width:7%; }</style>';
       }
   }
   add_action( 'init', array( 'Add_Blog_ID', 'init' ) );
   

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