WooCommerce not letting me add custom column to shop_order post type - wordpress

Question

I just started writing a plugin and ran into a problem right away. I want to add a column to the order overview page in the WooCommerce admin. The straight forward filter below doesn't do anything. Replacing shop_order with post or product, however, does show the extra column on the respective overview page.
add_filter('manage_edit-shop_order_columns', 'add_sales_column');
function add_sales_column($columns) {
$columns['order_sales'] = "Sales";
return $columns;
}
Trying this on:
WC Version: 2.1.5
WP Version: 3.8.1
How to solve this?

Answer 1

I encountered a similar issue when adding a custom column to the WooCommerce Orders overview page from my theme's functions.php file. I was able to get a custom column to show up by increasing the filter priority above the default value of 10. Try replacing your code with the following:
add_filter('manage_edit-shop_order_columns', 'add_sales_column', 11);
function add_sales_column($columns) {
$columns['order_sales'] = "Sales";
return $columns;
}
Tested on WP 3.9.1 and WC 2.1.12.
Check out the WordPress Codex entry on add_filter for more details on the behavior of filters using the $priority parameter.

Answer 2

The problem is that we have to wait for WooCommerce to finish its setup. This goes two ways, first running all our hooks inside a plugins_loaded main hook, and then setting the priority of our hooks for something greater than WC's.
add_action( 'plugins_loaded', 'setup_so_22237380' );
function setup_so_22237380()
{
// Just to make clear how the filters work
$posttype = "shop_order";
// Priority 20, with 1 parameter (the 1 here is optional)
add_filter( "manage_edit-{$posttype}_columns", 'column_set_so_22237380', 20, 1 );
// Priority 20, with 2 parameters
add_action( "manage_{$posttype}_posts_custom_column", 'column_display_so_22237380', 20, 2 );
// Default priority, default parameters (zero or one)
add_filter( "manage_edit-{$posttype}_sortable_columns", 'column_sort_so_22237380' );
}
function column_set_so_22237380( $columns )
{
$columns['order_sales'] = "Sales";
return $columns;
}
function column_display_so_22237380( $column_name, $post_id )
{
if ( 'order_sales' != $column_name )
return;
$sales_information = 'Your custom get_order_sales_information($post_id)';
if ( $sales_information )
echo "<strong style='color:#f00;'> $sales_information </strong>";
}
function column_sort_so_22237380( $columns )
{
$columns['order_sales'] = 'order_sales';
return $columns;
}
Setting the column as sortable is optional (manage_edit-{$posttype}_sortable_columns) and needs an extra action hook to make it work (pre_get_posts). This may be a complex function to build and requires its own research.

Answer 3

It will working fine if you include all the order hook on
add_action( 'admin_init', 'setup_all_order_column_hook' );
function setup_all_order_column_hook(){
//Just to make clear how the filters work
$posttype = "shop_order";
//Priority 20, with 1 parameter (the 1 here is optional)
add_filter( "manage_edit-{$posttype}_columns", 'column_set_so_22237380', 20, 1 );
//Priority 20, with 2 parameters
add_action( "manage_{$posttype}_posts_custom_column",column_display_so_22237380', 20, 2 );
// Default priority, default parameters (zero or one)
add_filter( "manage_edit-{$posttype}_sortable_columns",'column_sort_so_22237380' );
}