WordPress Plugin: My Jetpack Stats Column

my-stats-column-for-jetpack.php

<?php
/**
 * Plugin Name: My Jetpack Stats Column
 * Plugin URI:  http://xlino.com/projects/adding-a-stats-column-for-jetpack/
 * Author:      birgire
 * Description: Adds a stats column to the posts table on the edit.php screen
 * Version:     1.0.0
 */
 
add_action( 'admin_init', function()
{
	// Check if Jetpack Stats module is active
	if( ! class_exists( 'Jetpack' ) || ! Jetpack::is_module_active( 'stats' ) )
		return;
	
	if( class_exists( 'MyJetPackStatsColumn' ) )
	{
		// Initialize
		$o = new MyJetPackStatsColumn;	
		$o->init( [ 'postx', 'page' ] );
	}
} );

class MyJetPackStatsColumn
{	
	public function init( $cpts = [] )
	{
		foreach( (array) $cpts as $cpt )
		{
			$cpt = sanitize_key( $cpt );
			add_action( "manage_{$cpt}_posts_custom_column", 	[ $this, 'column' ], 10, 2 );
			add_filter( "manage_{$cpt}_posts_columns", 			[ $this, 'columns' ] ); 		 
		}
		
		if( is_array( $cpts ) && ! empty( $cpts) )
			add_action( 'admin_print_styles-edit.php', 			[ $this, 'style' ] );
	}

	public function columns( array $columns )
	{
		$columns['my_jetpack_stats'] = __( '' );     
		return $columns;
	}
	
	public function column( $column, $post_id )
	{
		if( 'my_jetpack_stats' !== $column )
			return;
		
		printf(
			'<a href="%s%d" target="_blank" title="%s"><span class="dashicons dashicons-chart-bar"></span></a>',
			esc_url( admin_url( 'admin.php?page=stats&view=post&post=' ) ),
			(int) $post_id,
			esc_attr( __( 'Stats' ) )
		);			
	}
	
	public function style()
	{
		?><style> .column-my_jetpack_stats { width: 30px; }</style><?php 
	}
		
} // end class