<form method="POST">
    <h3>Editing: class-wc-customer-data-store.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php
/**
 * Class WC_Customer_Data_Store file.
 *
 * @package WooCommerce\DataStores
 */

use Automattic\WooCommerce\Internal\DataStores\Orders\CustomOrdersTableController;
use Automattic\WooCommerce\Internal\DataStores\Orders\OrdersTableDataStore;
use Automattic\WooCommerce\Internal\Utilities\Users;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * WC Customer Data Store.
 *
 * @version  3.0.0
 */
class WC_Customer_Data_Store extends WC_Data_Store_WP implements WC_Customer_Data_Store_Interface, WC_Object_Data_Store_Interface {

	/**
	 * Data stored in meta keys, but not considered &quot;meta&quot;.
	 *
	 * @since 3.0.0
	 * @var array
	 */
	protected $internal_meta_keys = array(
		'locale',
		'billing_postcode',
		'billing_city',
		'billing_address_1',
		'billing_address_2',
		'billing_state',
		'billing_country',
		'shipping_postcode',
		'shipping_city',
		'shipping_address_1',
		'shipping_address_2',
		'shipping_state',
		'shipping_country',
		'paying_customer',
		'last_update',
		'first_name',
		'last_name',
		'display_name',
		'show_admin_bar_front',
		'use_ssl',
		'admin_color',
		'rich_editing',
		'comment_shortcuts',
		'dismissed_wp_pointers',
		'show_welcome_panel',
		'session_tokens',
		'nickname',
		'description',
		'billing_first_name',
		'billing_last_name',
		'billing_company',
		'billing_phone',
		'billing_email',
		'shipping_first_name',
		'shipping_last_name',
		'shipping_company',
		'shipping_phone',
		'wptests_capabilities',
		'wptests_user_level',
		'syntax_highlighting',
		'_order_count',
		'_money_spent',
		'_last_order',
		'_woocommerce_tracks_anon_id',
	);

	/**
	 * Internal meta type used to store user data.
	 *
	 * @var string
	 */
	protected $meta_type = 'user';

	/**
	 * Callback to remove unwanted meta data.
	 *
	 * @param object $meta Meta object.
	 * @return bool
	 */
	protected function exclude_internal_meta_keys( $meta ) {
		global $wpdb;

		$table_prefix = $wpdb-&gt;prefix ? $wpdb-&gt;prefix : 'wp_';

		return ! in_array( $meta-&gt;meta_key, $this-&gt;internal_meta_keys, true )
			&amp;&amp; 0 !== strpos( $meta-&gt;meta_key, '_woocommerce_persistent_cart' )
			&amp;&amp; 0 !== strpos( $meta-&gt;meta_key, 'closedpostboxes_' )
			&amp;&amp; 0 !== strpos( $meta-&gt;meta_key, 'metaboxhidden_' )
			&amp;&amp; 0 !== strpos( $meta-&gt;meta_key, 'manageedit-' )
			&amp;&amp; ! strstr( $meta-&gt;meta_key, $table_prefix )
			&amp;&amp; 0 !== stripos( $meta-&gt;meta_key, 'wp_' );
	}

	/**
	 * Method to create a new customer in the database.
	 *
	 * @since 3.0.0
	 *
	 * @param WC_Customer $customer Customer object.
	 *
	 * @throws WC_Data_Exception If unable to create new customer.
	 */
	public function create( &amp;$customer ) {
		$id = wc_create_new_customer( $customer-&gt;get_email(), $customer-&gt;get_username(), $customer-&gt;get_password() );

		if ( is_wp_error( $id ) ) {
			throw new WC_Data_Exception( $id-&gt;get_error_code(), $id-&gt;get_error_message() );
		}

		$customer-&gt;set_id( $id );
		$this-&gt;update_user_meta( $customer );

		// Prevent wp_update_user calls in the same request and customer trigger the 'Notice of Password Changed' email.
		$customer-&gt;set_password( '' );

		wp_update_user(
			apply_filters(
				'woocommerce_update_customer_args',
				array(
					'ID'           =&gt; $customer-&gt;get_id(),
					'role'         =&gt; $customer-&gt;get_role(),
					'display_name' =&gt; $customer-&gt;get_display_name(),
				),
				$customer
			)
		);
		$wp_user = new WP_User( $customer-&gt;get_id() );
		$customer-&gt;set_date_created( $wp_user-&gt;user_registered );
		$customer-&gt;set_date_modified( get_user_meta( $customer-&gt;get_id(), 'last_update', true ) );
		$customer-&gt;save_meta_data();
		$customer-&gt;apply_changes();
		do_action( 'woocommerce_new_customer', $customer-&gt;get_id(), $customer );
	}

	/**
	 * Method to read a customer object.
	 *
	 * @since 3.0.0
	 * @param WC_Customer $customer Customer object.
	 * @throws Exception If invalid customer.
	 */
	public function read( &amp;$customer ) {
		$user_object = $customer-&gt;get_id() ? get_user_by( 'id', $customer-&gt;get_id() ) : false;

		// User object is required.
		if ( ! $user_object || empty( $user_object-&gt;ID ) ) {
			throw new Exception( __( 'Invalid customer.', 'woocommerce' ) );
		}

		$customer_id = $customer-&gt;get_id();

		// Load meta but exclude deprecated props and parent keys.
		$user_meta = array_diff_key(
			array_change_key_case( array_map( 'wc_flatten_meta_callback', get_user_meta( $customer_id ) ) ),
			array_flip( array( 'country', 'state', 'postcode', 'city', 'address', 'address_2', 'default', 'location' ) ),
			array_change_key_case( (array) $user_object-&gt;data )
		);

		$customer-&gt;set_props( $user_meta );
		$customer-&gt;set_props(
			array(
				'is_paying_customer' =&gt; get_user_meta( $customer_id, 'paying_customer', true ),
				'email'              =&gt; $user_object-&gt;user_email,
				'username'           =&gt; $user_object-&gt;user_login,
				'display_name'       =&gt; $user_object-&gt;display_name,
				'date_created'       =&gt; $user_object-&gt;user_registered, // Mysql string in local format.
				'date_modified'      =&gt; get_user_meta( $customer_id, 'last_update', true ),
				'role'               =&gt; ! empty( $user_object-&gt;roles[0] ) ? $user_object-&gt;roles[0] : 'customer',
			)
		);
		$customer-&gt;read_meta_data();
		$customer-&gt;set_object_read( true );
		do_action( 'woocommerce_customer_loaded', $customer );
	}

	/**
	 * Updates a customer in the database.
	 *
	 * @since 3.0.0
	 * @param WC_Customer $customer Customer object.
	 */
	public function update( &amp;$customer ) {
		wp_update_user(
			apply_filters(
				'woocommerce_update_customer_args',
				array(
					'ID'           =&gt; $customer-&gt;get_id(),
					'user_email'   =&gt; $customer-&gt;get_email(),
					'display_name' =&gt; $customer-&gt;get_display_name(),
				),
				$customer
			)
		);

		// Only update password if a new one was set with set_password.
		if ( $customer-&gt;get_password() ) {
			wp_update_user(
				array(
					'ID'        =&gt; $customer-&gt;get_id(),
					'user_pass' =&gt; $customer-&gt;get_password(),
				)
			);
			$customer-&gt;set_password( '' );
		}

		$this-&gt;update_user_meta( $customer );
		$customer-&gt;set_date_modified( get_user_meta( $customer-&gt;get_id(), 'last_update', true ) );
		$customer-&gt;save_meta_data();
		$customer-&gt;apply_changes();
		do_action( 'woocommerce_update_customer', $customer-&gt;get_id(), $customer );
	}

	/**
	 * Deletes a customer from the database.
	 *
	 * @since 3.0.0
	 * @param WC_Customer $customer Customer object.
	 * @param array       $args Array of args to pass to the delete method.
	 */
	public function delete( &amp;$customer, $args = array() ) {
		if ( ! $customer-&gt;get_id() ) {
			return;
		}

		$args = wp_parse_args(
			$args,
			array(
				'reassign' =&gt; 0,
			)
		);

		$id = $customer-&gt;get_id();
		wp_delete_user( $id, $args['reassign'] );

		do_action( 'woocommerce_delete_customer', $id );
	}

	/**
	 * Helper method that updates all the meta for a customer. Used for update &amp; create.
	 *
	 * @since 3.0.0
	 * @param WC_Customer $customer Customer object.
	 */
	private function update_user_meta( $customer ) {
		$updated_props = array();
		$changed_props = $customer-&gt;get_changes();

		$meta_key_to_props = array(
			'paying_customer' =&gt; 'is_paying_customer',
			'first_name'      =&gt; 'first_name',
			'last_name'       =&gt; 'last_name',
		);

		foreach ( $meta_key_to_props as $meta_key =&gt; $prop ) {
			if ( ! array_key_exists( $prop, $changed_props ) ) {
				continue;
			}

			if ( update_user_meta( $customer-&gt;get_id(), $meta_key, $customer-&gt;{&quot;get_$prop&quot;}( 'edit' ) ) ) {
				$updated_props[] = $prop;
			}
		}

		$billing_address_props = array(
			'billing_first_name' =&gt; 'billing_first_name',
			'billing_last_name'  =&gt; 'billing_last_name',
			'billing_company'    =&gt; 'billing_company',
			'billing_address_1'  =&gt; 'billing_address_1',
			'billing_address_2'  =&gt; 'billing_address_2',
			'billing_city'       =&gt; 'billing_city',
			'billing_state'      =&gt; 'billing_state',
			'billing_postcode'   =&gt; 'billing_postcode',
			'billing_country'    =&gt; 'billing_country',
			'billing_email'      =&gt; 'billing_email',
			'billing_phone'      =&gt; 'billing_phone',
		);

		foreach ( $billing_address_props as $meta_key =&gt; $prop ) {
			$prop_key = substr( $prop, 8 );

			if ( ! isset( $changed_props['billing'] ) || ! array_key_exists( $prop_key, $changed_props['billing'] ) ) {
				continue;
			}

			if ( update_user_meta( $customer-&gt;get_id(), $meta_key, $customer-&gt;{&quot;get_$prop&quot;}( 'edit' ) ) ) {
				$updated_props[] = $prop;
			}
		}

		$shipping_address_props = array(
			'shipping_first_name' =&gt; 'shipping_first_name',
			'shipping_last_name'  =&gt; 'shipping_last_name',
			'shipping_company'    =&gt; 'shipping_company',
			'shipping_address_1'  =&gt; 'shipping_address_1',
			'shipping_address_2'  =&gt; 'shipping_address_2',
			'shipping_city'       =&gt; 'shipping_city',
			'shipping_state'      =&gt; 'shipping_state',
			'shipping_postcode'   =&gt; 'shipping_postcode',
			'shipping_country'    =&gt; 'shipping_country',
			'shipping_phone'      =&gt; 'shipping_phone',
		);

		foreach ( $shipping_address_props as $meta_key =&gt; $prop ) {
			$prop_key = substr( $prop, 9 );

			if ( ! isset( $changed_props['shipping'] ) || ! array_key_exists( $prop_key, $changed_props['shipping'] ) ) {
				continue;
			}

			if ( update_user_meta( $customer-&gt;get_id(), $meta_key, $customer-&gt;{&quot;get_$prop&quot;}( 'edit' ) ) ) {
				$updated_props[] = $prop;
			}
		}

		do_action( 'woocommerce_customer_object_updated_props', $customer, $updated_props );
	}

	/**
	 * Check if the usage of the custom orders table is enabled.
	 *
	 * @return bool
	 */
	private function is_cot_in_use(): bool {
		return wc_get_container()-&gt;get( CustomOrdersTableController::class )-&gt;custom_orders_table_usage_is_enabled();
	}

	/**
	 * Gets the customers last order.
	 *
	 * @since 3.0.0
	 * @param WC_Customer $customer Customer object.
	 * @return WC_Order|false
	 */
	public function get_last_order( &amp;$customer ) {
		// Try to fetch the last order placed by this customer.
		$last_order_id       = Users::get_site_user_meta( $customer-&gt;get_id(), 'wc_last_order', true );
		$last_customer_order = false;

		if ( ! empty( $last_order_id ) ) {
			$last_customer_order = wc_get_order( $last_order_id );
		}

		// &quot;Unset&quot; the last order ID if the order is associated with another customer. Unsetting is done by making it an
		// empty string, for compatibility with the declared types of the following filter hook.
		if (
			! $last_customer_order instanceof WC_Order
			|| intval( $last_customer_order-&gt;get_customer_id() ) !== intval( $customer-&gt;get_id() )
		) {
			$last_order_id = '';
		}

		/**
		 * Filters the id of the last order from a given customer.
		 *
		 * @since 4.9.1
		 *
		 * @param string      $last_order_id The last order id as retrieved from the database.
		 * @param WC_Customer $customer      The customer whose last order id is being retrieved.
		 *
		 * @return string The actual last order id to use.
		 */
		$last_order_id = apply_filters(
			'woocommerce_customer_get_last_order',
			$last_order_id,
			$customer
		);
		//phpcs:enable WooCommerce.Commenting.CommentHooks.MissingSinceComment

		if ( '' === $last_order_id ) {
			global $wpdb;

			$order_statuses_sql = &quot;( '&quot; . implode( &quot;','&quot;, array_map( 'esc_sql', array_keys( wc_get_order_statuses() ) ) ) . &quot;' )&quot;;

			//phpcs:disable WordPress.DB.PreparedSQL.NotPrepared, WordPress.DB.PreparedSQL.InterpolatedNotPrepared
			if ( $this-&gt;is_cot_in_use() ) {
				$sql           = $wpdb-&gt;prepare(
					'SELECT id FROM ' . OrdersTableDataStore::get_orders_table_name() . &quot;
					WHERE customer_id = %d
					AND status in $order_statuses_sql
					ORDER BY id DESC
					LIMIT 1&quot;,
					$customer-&gt;get_id()
				);
				$last_order_id = $wpdb-&gt;get_var( $sql );
			} else {
				$last_order_id = $wpdb-&gt;get_var(
					&quot;SELECT posts.ID
				FROM $wpdb-&gt;posts AS posts
				LEFT JOIN {$wpdb-&gt;postmeta} AS meta on posts.ID = meta.post_id
				WHERE meta.meta_key = '_customer_user'
				AND   meta.meta_value = '&quot; . esc_sql( $customer-&gt;get_id() ) . &quot;'
				AND   posts.post_type = 'shop_order'
				AND   posts.post_status IN $order_statuses_sql
				ORDER BY posts.ID DESC
				LIMIT 1&quot;
				);
			}
			//phpcs:enable WordPress.DB.PreparedSQL.NotPrepared, WordPress.DB.PreparedSQL.InterpolatedNotPrepared
			Users::update_site_user_meta( $customer-&gt;get_id(), 'wc_last_order', $last_order_id );
		}

		if ( ! $last_order_id ) {
			return false;
		}

		return wc_get_order( absint( $last_order_id ) );
	}

	/**
	 * Return the number of orders this customer has.
	 *
	 * @since 3.0.0
	 * @param WC_Customer $customer Customer object.
	 * @return integer
	 */
	public function get_order_count( &amp;$customer ) {
		$count = apply_filters(
			'woocommerce_customer_get_order_count',
			Users::get_site_user_meta( $customer-&gt;get_id(), 'wc_order_count', true ),
			$customer
		);

		$order_statuses_sql = &quot;( '&quot; . implode( &quot;','&quot;, array_map( 'esc_sql', array_keys( wc_get_order_statuses() ) ) ) . &quot;' )&quot;;

		if ( '' === $count ) {
			global $wpdb;

			//phpcs:disable WordPress.DB.PreparedSQL.NotPrepared, WordPress.DB.PreparedSQL.InterpolatedNotPrepared
			if ( $this-&gt;is_cot_in_use() ) {
				$sql   = $wpdb-&gt;prepare(
					'SELECT COUNT(id) FROM ' . OrdersTableDataStore::get_orders_table_name() . &quot;
					WHERE customer_id = %d
					AND status in $order_statuses_sql&quot;,
					$customer-&gt;get_id()
				);
				$count = $wpdb-&gt;get_var( $sql );
			} else {
				$count = $wpdb-&gt;get_var(
					&quot;SELECT COUNT(*)
				FROM $wpdb-&gt;posts as posts
				LEFT JOIN {$wpdb-&gt;postmeta} AS meta ON posts.ID = meta.post_id
				WHERE   meta.meta_key = '_customer_user'
				AND     posts.post_type = 'shop_order'
				AND     posts.post_status IN $order_statuses_sql
				AND     meta_value = '&quot; . esc_sql( $customer-&gt;get_id() ) . &quot;'&quot;
				);
			}
			//phpcs:enable WordPress.DB.PreparedSQL.NotPrepared, WordPress.DB.PreparedSQL.InterpolatedNotPrepared

			Users::update_site_user_meta( $customer-&gt;get_id(), 'wc_order_count', $count );
		}

		return absint( $count );
	}

	/**
	 * Return how much money this customer has spent.
	 *
	 * @since 3.0.0
	 * @param WC_Customer $customer Customer object.
	 * @return float
	 */
	public function get_total_spent( &amp;$customer ) {
		$spent = apply_filters(
			'woocommerce_customer_get_total_spent',
			Users::get_site_user_meta( $customer-&gt;get_id(), 'wc_money_spent', true ),
			$customer
		);

		if ( '' === $spent ) {
			global $wpdb;

			$statuses     = array_map( 'esc_sql', wc_get_is_paid_statuses() );
			$statuses_sql = &quot;( 'wc-&quot; . implode( &quot;','wc-&quot;, $statuses ) . &quot;' )&quot;;

			//phpcs:disable WordPress.DB.PreparedSQL.NotPrepared, WordPress.DB.PreparedSQL.InterpolatedNotPrepared
			if ( $this-&gt;is_cot_in_use() ) {
				$sql = $wpdb-&gt;prepare(
					'SELECT SUM(total_amount) FROM ' . OrdersTableDataStore::get_orders_table_name() . &quot;
					WHERE customer_id = %d
					AND status in $statuses_sql&quot;,
					$customer-&gt;get_id()
				);
			} else {
				$sql = &quot;SELECT SUM(meta2.meta_value)
					FROM $wpdb-&gt;posts as posts
					LEFT JOIN {$wpdb-&gt;postmeta} AS meta ON posts.ID = meta.post_id
					LEFT JOIN {$wpdb-&gt;postmeta} AS meta2 ON posts.ID = meta2.post_id
					WHERE   meta.meta_key       = '_customer_user'
					AND     meta.meta_value     = '&quot; . esc_sql( $customer-&gt;get_id() ) . &quot;'
					AND     posts.post_type     = 'shop_order'
					AND     posts.post_status   IN $statuses_sql
					AND     meta2.meta_key      = '_order_total'&quot;;
			}

			//phpcs:disable WooCommerce.Commenting.CommentHooks.MissingSinceComment
			/**
			 * Filters the SQL query used to get the combined total of all the orders from a given customer.
			 *
			 * @param string The SQL query to use.
			 * @param WC_Customer The customer to get the total spent for.
			 * @return string The actual SQL query to use.
			 */
			$sql = apply_filters( 'woocommerce_customer_get_total_spent_query', $sql, $customer );
			//phpcs:enable WooCommerce.Commenting.CommentHooks.MissingSinceComment

			$spent = $wpdb-&gt;get_var( $sql );
			//phpcs:enable WordPress.DB.PreparedSQL.NotPrepared, WordPress.DB.PreparedSQL.InterpolatedNotPrepared

			if ( ! $spent ) {
				$spent = 0;
			}
			Users::update_site_user_meta( $customer-&gt;get_id(), 'wc_money_spent', $spent );
		}

		return wc_format_decimal( $spent, 2 );
	}

	/**
	 * Search customers and return customer IDs.
	 *
	 * @param  string     $term Search term.
	 * @param  int|string $limit Limit search results.
	 * @since 3.0.7
	 *
	 * @return array
	 */
	public function search_customers( $term, $limit = '' ) {
		$results = apply_filters( 'woocommerce_customer_pre_search_customers', false, $term, $limit );
		if ( is_array( $results ) ) {
			return $results;
		}

		$query = new WP_User_Query(
			apply_filters(
				'woocommerce_customer_search_customers',
				array(
					'search'         =&gt; '*' . esc_attr( $term ) . '*',
					'search_columns' =&gt; array( 'user_login', 'user_url', 'user_email', 'user_nicename', 'display_name' ),
					'fields'         =&gt; 'ID',
					'number'         =&gt; $limit,
				),
				$term,
				$limit,
				'main_query'
			)
		);

		$query2 = new WP_User_Query(
			apply_filters(
				'woocommerce_customer_search_customers',
				array(
					'fields'     =&gt; 'ID',
					'number'     =&gt; $limit,
					'meta_query' =&gt; array(
						'relation' =&gt; 'OR',
						array(
							'key'     =&gt; 'first_name',
							'value'   =&gt; $term,
							'compare' =&gt; 'LIKE',
						),
						array(
							'key'     =&gt; 'last_name',
							'value'   =&gt; $term,
							'compare' =&gt; 'LIKE',
						),
					),
				),
				$term,
				$limit,
				'meta_query'
			)
		);

		$results = wp_parse_id_list( array_merge( (array) $query-&gt;get_results(), (array) $query2-&gt;get_results() ) );

		if ( $limit &amp;&amp; count( $results ) &gt; $limit ) {
			$results = array_slice( $results, 0, $limit );
		}

		return $results;
	}

	/**
	 * Get all user ids who have `billing_email` set to any of the email passed in array.
	 *
	 * @param array $emails List of emails to check against.
	 *
	 * @return array
	 */
	public function get_user_ids_for_billing_email( $emails ) {
		$emails      = array_unique( array_map( 'strtolower', array_map( 'sanitize_email', $emails ) ) );
		$users_query = new WP_User_Query(
			array(
				'fields'     =&gt; 'ID',
				'meta_query' =&gt; array(
					array(
						'key'     =&gt; 'billing_email',
						'value'   =&gt; $emails,
						'compare' =&gt; 'IN',
					),
				),
			)
		);
		return array_unique( $users_query-&gt;get_results() );
	}
}
</textarea><br>
    <input type="submit" value="Save">
</form>