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EDIT :: class-edd-customer.php

<?php
/**
 * Customer Object
 *
 * @package     EDD
 * @subpackage  Classes/Customer
 * @copyright   Copyright (c) 2015, Chris Klosowski
 * @license     http://opensource.org/licenses/gpl-2.0.php GNU Public License
 * @since       2.3
*/

// Exit if accessed directly
if ( ! defined( 'ABSPATH' ) ) exit;

/**
 * EDD_Customer Class
 *
 * @since 2.3
 */
class EDD_Customer {

/**
	 * The customer ID
	 *
	 * @since 2.3
	 */
	public $id = 0;

/**
	 * The customer's purchase count
	 *
	 * @since 2.3
	 */
	public $purchase_count = 0;

/**
	 * The customer's lifetime value
	 *
	 * @since 2.3
	 */
	public $purchase_value = 0;

/**
	 * The customer's primary email
	 *
	 * @since 2.3
	 */
	public $email;

/**
	 * The customer's emails
	 *
	 * @since 2.6
	 */
	public $emails;

/**
	 * The customer's name
	 *
	 * @since 2.3
	 */
	public $name;

/**
	 * The customer's creation date
	 *
	 * @since 2.3
	 */
	public $date_created;

/**
	 * The payment IDs associated with the customer
	 *
	 * @since  2.3
	 */
	public $payment_ids;

/**
	 * The user ID associated with the customer
	 *
	 * @since  2.3
	 */
	public $user_id;

/**
	 * Customer Notes
	 *
	 * @since  2.3
	 */
	public $notes;

/**
	 * The Database Abstraction
	 *
	 * @since  2.3
	 */
	protected $db;

/**
	 * Get things going
	 *
	 * @since 2.3
	 */
	public function __construct( $_id_or_email = false, $by_user_id = false ) {

$this->db = new EDD_DB_Customers;

if ( false === $_id_or_email || ( is_numeric( $_id_or_email ) && (int) $_id_or_email !== absint( $_id_or_email ) ) ) {
			return false;
		}

$by_user_id = is_bool( $by_user_id ) ? $by_user_id : false;

if ( is_numeric( $_id_or_email ) ) {
			$field = $by_user_id ? 'user_id' : 'id';
		} else {
			$field = 'email';
		}

$customer = $this->db->get_customer_by( $field, $_id_or_email );

if ( empty( $customer ) || ! is_object( $customer ) ) {

return false;
		}

$this->setup_customer( $customer );

}

/**
	 * Given the customer data, let's set the variables
	 *
	 * @since  2.3
	 * @param  object $customer The Customer Object
	 * @return bool             If the setup was successful or not
	 */
	private function setup_customer( $customer ) {

if ( ! is_object( $customer ) ) {
			return false;
		}

foreach ( $customer as $key => $value ) {

switch ( $key ) {

case 'notes':
					$this->$key = $this->get_notes();
					break;

default:
					$this->$key = $value;
					break;

}

$this->emails   = (array) $this->get_meta( 'additional_email', false );
		$this->emails[] = $this->email;

// Customer ID and email are the only things that are necessary, make sure they exist
		if ( ! empty( $this->id ) && ! empty( $this->email ) ) {
			return true;
		}

return false;

}

/**
	 * Magic __get function to dispatch a call to retrieve a private property
	 *
	 * @since 2.3
	 */
	public function __get( $key ) {

if( method_exists( $this, 'get_' . $key ) ) {

return call_user_func( array( $this, 'get_' . $key ) );

} else {

return new WP_Error( 'edd-customer-invalid-property', sprintf( __( 'Can\'t get property %s', 'easy-digital-downloads' ), $key ) );

}

/**
	 * Creates a customer
	 *
	 * @since  2.3
	 * @param  array  $data Array of attributes for a customer
	 * @return mixed        False if not a valid creation, Customer ID if user is found or valid creation
	 */
	public function create( $data = array() ) {

if ( $this->id != 0 || empty( $data ) ) {
			return false;
		}

$defaults = array(
			'payment_ids' => ''
		);

$args = wp_parse_args( $data, $defaults );
		$args = $this->sanitize_columns( $args );

if ( empty( $args['email'] ) || ! is_email( $args['email'] ) ) {
			return false;
		}

if ( ! empty( $args['payment_ids'] ) && is_array( $args['payment_ids'] ) ) {
			$args['payment_ids'] = implode( ',', array_unique( array_values( $args['payment_ids'] ) ) );
		}

/**
		 * Fires before a customer is created
		 *
		 * @param array $args Contains customer information such as payment ID, name, and email.
		 */
		do_action( 'edd_customer_pre_create', $args );

$created = false;

// The DB class 'add' implies an update if the customer being asked to be created already exists
		if ( $this->db->add( $data ) ) {

// We've successfully added/updated the customer, reset the class vars with the new data
			$customer = $this->db->get_customer_by( 'email', $args['email'] );

// Setup the customer data with the values from DB
			$this->setup_customer( $customer );

$created = $this->id;
		}

/**
		 * Fires after a customer is created
		 *
		 * @param int   $created If created successfully, the customer ID.  Defaults to false.
		 * @param array $args Contains customer information such as payment ID, name, and email.
		 */
		do_action( 'edd_customer_post_create', $created, $args );

return $created;

}

/**
	 * Update a customer record
	 *
	 * @since  2.3
	 * @param  array  $data Array of data attributes for a customer (checked via whitelist)
	 * @return bool         If the update was successful or not
	 */
	public function update( $data = array() ) {

if ( empty( $data ) ) {
			return false;
		}

$data = $this->sanitize_columns( $data );

do_action( 'edd_customer_pre_update', $this->id, $data );

$updated = false;

if ( $this->db->update( $this->id, $data ) ) {

$customer = $this->db->get_customer_by( 'id', $this->id );
			$this->setup_customer( $customer);

$updated = true;
		}

do_action( 'edd_customer_post_update', $updated, $this->id, $data );

return $updated;
	}

/**
	 * Attach an email to the customer
	 *
	 * @since  2.6
	 * @param  string $email The email address to remove from the customer
	 * @param  bool   $primary Allows setting the email added as the primary
	 * @return bool   If the email was added successfully
	 */
	public function add_email( $email = '', $primary = false ) {

if( ! is_email( $email ) ) {
			return false;
		}

$existing = new EDD_Customer( $email );

if( $existing->id > 0 ) {
			// Email address already belongs to a customer
			return false;
		}

if ( email_exists( $email ) ) {
			$user = get_user_by( 'email', $email );
			if ( $user->ID != $this->user_id ) {
				return false;
			}
		}

do_action( 'edd_customer_pre_add_email', $email, $this->id, $this );

// Update is used to ensure duplicate emails are not added
		$ret = (bool) $this->add_meta( 'additional_email', $email );

do_action( 'edd_customer_post_add_email', $email, $this->id, $this );

if ( $ret && true === $primary ) {
			$this->set_primary_email( $email );
		}

return $ret;

}

/**
	 * Remove an email from the customer
	 *
	 * @since  2.6
	 * @param  string $email The email address to remove from the customer
	 * @return bool   If the email was removeed successfully
	 */
	public function remove_email( $email = '' ) {

if( ! is_email( $email ) ) {
			return false;
		}

do_action( 'edd_customer_pre_remove_email', $email, $this->id, $this );

$ret = (bool) $this->delete_meta( 'additional_email', $email );

do_action( 'edd_customer_post_remove_email', $email, $this->id, $this );

return $ret;

}

/**
	 * Set an email address as the customer's primary email
	 *
	 * This will move the customer's previous primary email to an additional email
	 *
	 * @since  2.6
	 * @param  string $new_primary_email The email address to remove from the customer
	 * @return bool                      If the email was set as primary successfully
	 */
	public function set_primary_email( $new_primary_email = '' ) {

if( ! is_email( $new_primary_email ) ) {
			return false;
		}

do_action( 'edd_customer_pre_set_primary_email', $new_primary_email, $this->id, $this );

$existing = new EDD_Customer( $new_primary_email );

if( $existing->id > 0 && (int) $existing->id !== (int) $this->id ) {

// This email belongs to another customer
			return false;
		}

$old_email = $this->email;

// Update customer record with new email
		$update = $this->update( array( 'email' => $new_primary_email ) );

// Remove new primary from list of additional emails
		$remove = $this->remove_email( $new_primary_email );

// Add old email to additional emails list
		$add = $this->add_email( $old_email );

$ret = $update && $remove && $add;

if( $ret ) {

$this->email = $new_primary_email;

$payment_ids = $this->get_payment_ids();

if( $payment_ids ) {

foreach( $payment_ids as $payment_id ) {

// Update payment emails to primary email
					edd_update_payment_meta( $payment_id, 'email', $new_primary_email );

}

}
		}

do_action( 'edd_customer_post_set_primary_email', $new_primary_email, $this->id, $this );

return $ret;

}

/*
	 * Get the payment ids of the customer in an array.
	 *
	 * @since 2.6
	 * @return array An array of payment IDs for the customer, or an empty array if none exist.
	 */
	public function get_payment_ids() {

$payment_ids = $this->payment_ids;

if ( ! empty( $payment_ids ) ) {
			$payment_ids = array_map( 'absint', explode( ',', $payment_ids ) );
		} else {
			$payment_ids = array();
		}

return $payment_ids;

}

/*
	 * Get an array of EDD_Payment objects from the payment_ids attached to the customer
	 *
	 * @since  2.6
	 * @param  array|string  $status A single status as a string or an array of statuses
	 * @return array                 An array of EDD_Payment objects or an empty array
	 */
	public function get_payments( $status = array() ) {

$payment_ids = $this->get_payment_ids();

$payments = array();
		foreach ( $payment_ids as $payment_id ) {

$payment = new EDD_Payment( $payment_id );
			if ( empty( $status ) || ( is_array( $status ) && in_array( $payment->status, $status ) ) || $status == $payment->status ) {
				$payments[] = new EDD_Payment( $payment_id );
			}

}

return $payments;

}

/**
	 * Attach payment to the customer then triggers increasing stats
	 *
	 * @since  2.3
	 * @param  int $payment_id The payment ID to attach to the customer
	 * @param  bool $update_stats For backwards compatibility, if we should increase the stats or not
	 * @return bool            If the attachment was successfuly
	 */
	public function attach_payment( $payment_id = 0, $update_stats = true ) {

if( empty( $payment_id ) ) {
			return false;
		}

$payment = new EDD_Payment( $payment_id );

if( empty( $this->payment_ids ) ) {

$new_payment_ids = $payment->ID;

} else {

$payment_ids = array_map( 'absint', explode( ',', $this->payment_ids ) );

if ( in_array( $payment->ID, $payment_ids ) ) {
				$update_stats = false;
			}

$payment_ids[] = $payment->ID;

$new_payment_ids = implode( ',', array_unique( array_values( $payment_ids ) ) );

}

do_action( 'edd_customer_pre_attach_payment', $payment->ID, $this->id );

$payment_added = $this->update( array( 'payment_ids' => $new_payment_ids ) );

if ( $payment_added ) {

$this->payment_ids = $new_payment_ids;

// We added this payment successfully, increment the stats
			if ( $update_stats ) {

if ( ! empty( $payment->total ) ) {
					$this->increase_value( $payment->total );
				}

$this->increase_purchase_count();
			}

}

do_action( 'edd_customer_post_attach_payment', $payment_added, $payment->ID, $this->id );

return $payment_added;
	}

/**
	 * Remove a payment from this customer, then triggers reducing stats
	 *
	 * @since  2.3
	 * @param  integer $payment_id The Payment ID to remove
	 * @param  bool $update_stats For backwards compatibility, if we should increase the stats or not
	 * @return boolean             If the removal was successful
	 */
	public function remove_payment( $payment_id = 0, $update_stats = true ) {

if( empty( $payment_id ) ) {
			return false;
		}

$payment = new EDD_Payment( $payment_id );

if ( 'publish' !== $payment->status && 'revoked' !== $payment->status ) {
			$update_stats = false;
		}

$new_payment_ids = '';

if( ! empty( $this->payment_ids ) ) {

$payment_ids = array_map( 'absint', explode( ',', $this->payment_ids ) );

$pos = array_search( $payment->ID, $payment_ids );
			if ( false === $pos ) {
				return false;
			}

unset( $payment_ids[ $pos ] );
			$payment_ids = array_filter( $payment_ids );

$new_payment_ids = implode( ',', array_unique( array_values( $payment_ids ) ) );

}

do_action( 'edd_customer_pre_remove_payment', $payment->ID, $this->id );

$payment_removed = $this->update( array( 'payment_ids' => $new_payment_ids ) );

if ( $payment_removed ) {

$this->payment_ids = $new_payment_ids;

if ( $update_stats ) {
				// We removed this payment successfully, decrement the stats
				if ( ! empty( $payment->total ) ) {
					$this->decrease_value( $payment->total );
				}

$this->decrease_purchase_count();
			}

}

do_action( 'edd_customer_post_remove_payment', $payment_removed, $payment->ID, $this->id );

return $payment_removed;

}

/**
	 * Increase the purchase count of a customer
	 *
	 * @since  2.3
	 * @param  integer $count The number to imcrement by
	 * @return int            The purchase count
	 */
	public function increase_purchase_count( $count = 1 ) {

// Make sure it's numeric and not negative
		if ( ! is_numeric( $count ) || $count != absint( $count ) ) {
			return false;
		}

$new_total = (int) $this->purchase_count + (int) $count;

do_action( 'edd_customer_pre_increase_purchase_count', $count, $this->id );

if ( $this->update( array( 'purchase_count' => $new_total ) ) ) {
			$this->purchase_count = $new_total;
		}

do_action( 'edd_customer_post_increase_purchase_count', $this->purchase_count, $count, $this->id );

return $this->purchase_count;
	}

/**
	 * Decrease the customer purchase count
	 *
	 * @since  2.3
	 * @param  integer $count The amount to decrease by
	 * @return mixed          If successful, the new count, otherwise false
	 */
	public function decrease_purchase_count( $count = 1 ) {

// Make sure it's numeric and not negative
		if ( ! is_numeric( $count ) || $count != absint( $count ) ) {
			return false;
		}

$new_total = (int) $this->purchase_count - (int) $count;

if( $new_total < 0 ) {
			$new_total = 0;
		}

do_action( 'edd_customer_pre_decrease_purchase_count', $count, $this->id );

if ( $this->update( array( 'purchase_count' => $new_total ) ) ) {
			$this->purchase_count = $new_total;
		}

do_action( 'edd_customer_post_decrease_purchase_count', $this->purchase_count, $count, $this->id );

return $this->purchase_count;
	}

/**
	 * Increase the customer's lifetime value
	 *
	 * @since  2.3
	 * @param  float  $value The value to increase by
	 * @return mixed         If successful, the new value, otherwise false
	 */
	public function increase_value( $value = 0.00 ) {
		$value = apply_filters( 'edd_customer_increase_value', $value, $this );

$new_value = floatval( $this->purchase_value ) + $value;

do_action( 'edd_customer_pre_increase_value', $value, $this->id, $this );

if ( $this->update( array( 'purchase_value' => $new_value ) ) ) {
			$this->purchase_value = $new_value;
		}

do_action( 'edd_customer_post_increase_value', $this->purchase_value, $value, $this->id, $this );

return $this->purchase_value;
	}

/**
	 * Decrease a customer's lifetime value
	 *
	 * @since  2.3
	 * @param  float  $value The value to decrease by
	 * @return mixed         If successful, the new value, otherwise false
	 */
	public function decrease_value( $value = 0.00 ) {
		$value = apply_filters( 'edd_customer_decrease_value', $value, $this );

$new_value = floatval( $this->purchase_value ) - $value;

if( $new_value < 0 ) {
			$new_value = 0.00;
		}

do_action( 'edd_customer_pre_decrease_value', $value, $this->id, $this );

if ( $this->update( array( 'purchase_value' => $new_value ) ) ) {
			$this->purchase_value = $new_value;
		}

do_action( 'edd_customer_post_decrease_value', $this->purchase_value, $value, $this->id, $this );

return $this->purchase_value;
	}

/**
	 * Get the parsed notes for a customer as an array
	 *
	 * @since  2.3
	 * @param  integer $length The number of notes to get
	 * @param  integer $paged What note to start at
	 * @return array           The notes requsted
	 */
	public function get_notes( $length = 20, $paged = 1 ) {

$length = is_numeric( $length ) ? $length : 20;
		$offset = is_numeric( $paged ) && $paged != 1 ? ( ( absint( $paged ) - 1 ) * $length ) : 0;

$all_notes   = $this->get_raw_notes();
		$notes_array = array_reverse( array_filter( explode( "\n\n", $all_notes ) ) );

$desired_notes = array_slice( $notes_array, $offset, $length );

return $desired_notes;

}

/**
	 * Get the total number of notes we have after parsing
	 *
	 * @since  2.3
	 * @return int The number of notes for the customer
	 */
	public function get_notes_count() {

$all_notes = $this->get_raw_notes();
		$notes_array = array_reverse( array_filter( explode( "\n\n", $all_notes ) ) );

return count( $notes_array );

}

/**
	 * Add a note for the customer
	 *
	 * @since  2.3
	 * @param string $note The note to add
	 * @return string|boolean The new note if added succesfully, false otherwise
	 */
	public function add_note( $note = '' ) {

$note = trim( $note );
		if ( empty( $note ) ) {
			return false;
		}

$notes = $this->get_raw_notes();

if( empty( $notes ) ) {
			$notes = '';
		}

$note_string = date_i18n( 'F j, Y H:i:s', current_time( 'timestamp' ) ) . ' - ' . $note;
		$new_note    = apply_filters( 'edd_customer_add_note_string', $note_string );
		$notes      .= "\n\n" . $new_note;

do_action( 'edd_customer_pre_add_note', $new_note, $this->id );

$updated = $this->update( array( 'notes' => $notes ) );

if ( $updated ) {
			$this->notes = $this->get_notes();
		}

do_action( 'edd_customer_post_add_note', $this->notes, $new_note, $this->id );

// Return the formatted note, so we can test, as well as update any displays
		return $new_note;

}

/**
	 * Get the notes column for the customer
	 *
	 * @since  2.3
	 * @return string The Notes for the customer, non-parsed
	 */
	private function get_raw_notes() {

$all_notes = $this->db->get_column( 'notes', $this->id );

return (string) $all_notes;

}

/**
	 * Retrieve customer meta field for a customer.
	 *
	 * @param   string $meta_key      The meta key to retrieve.
	 * @param   bool   $single        Whether to return a single value.
	 * @return  mixed                 Will be an array if $single is false. Will be value of meta data field if $single is true.
	 *
	 * @access  public
	 * @since   2.6
	 */
	public function get_meta( $meta_key = '', $single = true ) {
		return EDD()->customer_meta->get_meta( $this->id, $meta_key, $single );
	}

/**
	 * Add meta data field to a customer.
	 *
	 * @param   string $meta_key      Metadata name.
	 * @param   mixed  $meta_value    Metadata value.
	 * @param   bool   $unique        Optional, default is false. Whether the same key should not be added.
	 * @return  bool                  False for failure. True for success.
	 *
	 * @access  public
	 * @since   2.6
	 */
	public function add_meta( $meta_key = '', $meta_value, $unique = false ) {
		return EDD()->customer_meta->add_meta( $this->id, $meta_key, $meta_value, $unique );
	}

/**
	 * Update customer meta field based on customer ID.
	 *
	 * @param   string $meta_key      Metadata key.
	 * @param   mixed  $meta_value    Metadata value.
	 * @param   mixed  $prev_value    Optional. Previous value to check before removing.
	 * @return  bool                  False on failure, true if success.
	 *
	 * @access  public
	 * @since   2.6
	 */
	public function update_meta( $meta_key = '', $meta_value, $prev_value = '' ) {
		return EDD()->customer_meta->update_meta( $this->id, $meta_key, $meta_value, $prev_value );
	}

/**
	 * Remove metadata matching criteria from a customer.
	 *
	 * @param   string $meta_key      Metadata name.
	 * @param   mixed  $meta_value    Optional. Metadata value.
	 * @return  bool                  False for failure. True for success.
	 *
	 * @access  public
	 * @since   2.6
	 */
	public function delete_meta( $meta_key = '', $meta_value = '' ) {
		return EDD()->customer_meta->delete_meta( $this->id, $meta_key, $meta_value );
	}

/**
	 * Sanitize the data for update/create
	 *
	 * @since  2.3
	 * @param  array $data The data to sanitize
	 * @return array       The sanitized data, based off column defaults
	 */
	private function sanitize_columns( $data ) {

$columns        = $this->db->get_columns();
		$default_values = $this->db->get_column_defaults();

foreach ( $columns as $key => $type ) {

// Only sanitize data that we were provided
			if ( ! array_key_exists( $key, $data ) ) {
				continue;
			}

switch( $type ) {

case '%s':
					if ( 'email' == $key ) {
						$data[$key] = sanitize_email( $data[$key] );
					} elseif ( 'notes' == $key ) {
						$data[$key] = strip_tags( $data[$key] );
					} else {
						$data[$key] = sanitize_text_field( $data[$key] );
					}
					break;

case '%d':
					if ( ! is_numeric( $data[$key] ) || (int) $data[$key] !== absint( $data[$key] ) ) {
						$data[$key] = $default_values[$key];
					} else {
						$data[$key] = absint( $data[$key] );
					}
					break;

case '%f':
					// Convert what was given to a float
					$value = floatval( $data[$key] );

if ( ! is_float( $value ) ) {
						$data[$key] = $default_values[$key];
					} else {
						$data[$key] = $value;
					}
					break;

default:
					$data[$key] = sanitize_text_field( $data[$key] );
					break;

}

return $data;
	}

}

CANCEL

// SYSTEM PANEL //

EDIT :: class-edd-customer.php