PMPro Sequential Member Numbers 3: Member numbers are automatically increased from the value set for $starting_member_number after each member registration

pmpro-sequential-member-numbers-3.php

/*
	Sequential Member Numbers
	
	* Member numbers are automatically increased from the value set for $starting_member_number after each member registration
	* Existing members already in the system will not receive a membership number
*/
//Generate member_number when a user is registered.
function generate_member_number($user_id)
{
	$starting_member_number = 100000;
	
  $current_member_number = get_option('pmpro_seq_current_member_num');
	
	if(empty($current_member_number))
	{
    $current_member_number = $starting_member_number;		
	}
  
  update_user_meta($user_id, 'member_number', $current_member_number);
  update_option('pmpro_seq_current_member_num', $current_member_number + 1);	
}

add_action('user_register', 'generate_member_number');

//Show it on the membership account page.
function pmpromn_pmpro_account_bullets_bottom()
{
	if(is_user_logged_in())
	{
		global $current_user;
		
		//get member number
		$member_number = get_user_meta($current_user->ID, "member_number", true);
		
		//show it
		if(!empty($member_number))
		{
		?>
		<li><strong><?php _e("Member Number", "pmpro");?>:</strong> <?php echo $member_number?></li>
		<?php
		}
	}
}
add_action('pmpro_account_bullets_bottom', 'pmpromn_pmpro_account_bullets_bottom');
add_action('pmpro_invoice_bullets_bottom', 'pmpromn_pmpro_account_bullets_bottom');
//show member_number in confirmation emails
function pmpromn_pmpro_email_filter($email)
{
	global $wpdb;
 	
	//only update admin confirmation emails
	if(strpos($email->template, "checkout") !== false)
	{
		if(!empty($email->data) && !empty($email->data['user_login']))
		{
			$user = get_user_by("login", $email->data['user_login']);			
			if(!empty($user) && !empty($user->ID))
			{
				$member_number = get_user_meta($user->ID, "member_number", true);
				
				if(!empty($member_number))
					$email->body = str_replace("<p>Membership Level", "<p>Member Number:" . $member_number . "</p><p>Membership Level", $email->body);
			}
		}
	}
		
	return $email;
}
add_filter("pmpro_email_filter", "pmpromn_pmpro_email_filter", 30, 2);

//Show member number in Members List and Members List  CSV export
//Requires PMPro Member Number Gist:
//https://gist.github.com/strangerstudios/3d2824b8caf56734a54a#file-generate_member_number-php

function my_pmpro_members_list_csv_extra_columns($columns)
{
	$columns["member_number"] = "my_extra_column_member_number";

	return $columns;
}
add_filter("pmpro_members_list_csv_extra_columns", "my_pmpro_members_list_csv_extra_columns", 10);

function my_extra_column_member_number($user)
{
	if(!empty($user->metavalues->member_number))
	{
		return $user->metavalues->member_number;
	}
	else
	{
		return "";
	}
}

function my_pmpro_memberslist_extra_cols_header()
{?>
	<th><?php _e('Member Number', 'pmpro');?></th><?php
}

add_action("pmpro_memberslist_extra_cols_header", "my_pmpro_memberslist_extra_cols_header");

//columns
function my_pmpro_memberslist_extra_cols_body($theuser)
{?>
	<td><?php 
		if(!empty($theuser->member_number))
		{
			echo $theuser->member_number;
		}?>
	</td><?php
}
add_action("pmpro_memberslist_extra_cols_body", "my_pmpro_memberslist_extra_cols_body");