Woocommerce預訂：致命錯誤：調用一個非對象的成員函數has_persons（）

Question

我需要你對WordPress和woocommerce很棒的技能，我有一個問題，我不知道爲什麼woocommerce預訂會拋出：

**Fatal error: Call to a member function `has_persons()` on a non-object in `xxx/plugins/woocommerce-bookings/includes/class-wc-booking.php` on line 557** 

並且它停止所有的腳本執行。

的woocommerce艙位：所有預訂

<?php 

/** * 主要模型類，這個處理所有的數據 */ 類WC_Booking {

/** @public int */ 
public $id; 

/** @public string */ 
public $booking_date; 

/** @public string */ 
public $start; 

/** @public string */ 
public $end; 

/** @public bool */ 
public $all_day; 

/** @public string */ 
public $modified_date; 

/** @public object */ 
public $post; 

/** @public int */ 
public $product_id; 

/** @public object */ 
public $product; 

/** @public int */ 
public $order_id; 

/** @public object */ 
public $order; 

/** @public int */ 
public $customer_id; 

/** @public string */ 
public $status; 

/** @public array - contains all post meta values for this booking */ 
public $custom_fields; 

/** @public bool */ 
public $populated; 

/** @private array - used to temporarily hold order data for new bookings */ 
private $order_data; 

/** 
* Constructor, possibly sets up with post or id belonging to existing booking 
* or supplied with an array to construct a new booking 
* @param int/array/obj $booking_data 
*/ 
public function __construct($booking_data = false) { 
    $populated = false; 

    if (is_array($booking_data)) { 
     $this->order_data = $booking_data; 
     $populated = false; 
    } else if (is_int(intval($booking_data)) && 0 < $booking_data) { 
     $populated = $this->populate_data($booking_data); 
    } else if (is_object($booking_data) && isset($booking_data->ID)) { 
     $this->post = $booking_data; 
     $populated = $this->populate_data($booking_data->ID); 
    } 

    $this->populated = $populated; 
} 

/** 
* Actual create for the new booking belonging to an order 
* @param string Status for new order 
*/ 
public function create($status = 'unpaid') { 
    $this->new_booking($status, $this->order_data); 
    $this->schedule_events(); 
} 

/** 
* Schedule events for this booking 
*/ 
public function schedule_events() { 
    switch (get_post_status($this->id)) { 
     case "paid" : 
      if ($this->start && $this->get_order()) { 
       $order_status = $this->get_order()->get_status(); 

       if (! in_array($order_status, array('cancelled', 'refunded', 'pending', 'on-hold'))) { 
        wp_schedule_single_event(strtotime('-' . absint(apply_filters('woocommerce_bookings_remind_before_days', 1)) . ' day', $this->start), 'wc-booking-reminder', array($this->id)); 
       } 
      } 
      if ($this->end) { 
       wp_schedule_single_event($this->end, 'wc-booking-complete', array($this->id)); 
      } 
     break; 
     default : 
      wp_clear_scheduled_hook('wc-booking-reminder', array($this->id)); 
      wp_clear_scheduled_hook('wc-booking-complete', array($this->id)); 
     break; 
    } 
} 

/** 
* Makes the new booking belonging to an order 
* @param string $status The status for this new booking 
* @param array $order_data Array with all the new order data 
*/ 
private function new_booking($status, $order_data) { 
    global $wpdb; 

    $order_data = wp_parse_args($order_data, array(
     'user_id'   => 0, 
     'resource_id'  => '', 
     'product_id'  => '', 
     'order_item_id'  => '', 
     'persons'   => array(), 
     'cost'    => '', 
     'start_date'  => '', 
     'end_date'   => '', 
     'all_day'   => 0, 
     'parent_id'   => 0, 
    )); 

    // Get parent data 
    if ($order_data['parent_id']) { 
     if (! $order_data['order_item_id']) { 
      $order_data['order_item_id'] = get_post_meta($order_data['parent_id'], '_booking_order_item_id', true); 
     } 

     if (! $order_data['user_id']) { 
      $order_data['user_id'] = get_post_meta($order_data['parent_id'], '_booking_customer_id', true); 
     } 
    } 

    // Get order ID from order item 
    if ($order_data['order_item_id']) { 
     $order_id = $wpdb->get_var($wpdb->prepare("SELECT order_id FROM {$wpdb->prefix}woocommerce_order_items WHERE order_item_id = %d", $order_data['order_item_id'])); 
    } else { 
     $order_id = 0; 
    } 

    $booking_data = array(
     'post_type' => 'wc_booking', 
     'post_title' => sprintf(__('Booking &ndash; %s', 'woocommerce-bookings'), strftime(_x('%b %d, %Y @ %I:%M %p', 'Booking date parsed by strftime', 'woocommerce-bookings'))), 
     'post_status' => $status, 
     'ping_status' => 'closed', 
     'post_parent' => $order_id 
    ); 

    $this->id = wp_insert_post($booking_data); 

    // Setup the required data for the current user 
    if (! $order_data['user_id']) { 
     if (is_user_logged_in()) { 
      $order_data['user_id'] = get_current_user_id(); 
     } else { 
      $order_data['user_id'] = 0; 
     } 
    } 

    // Convert booking start and end to requried format 
    if (is_numeric($order_data['start_date'])) { 
     // Convert timestamp 
     $order_data['start_date'] = date('YmdHis', $order_data['start_date']); 
     $order_data['end_date'] = date('YmdHis', $order_data['end_date']); 
    } else { 
     $order_data['start_date'] = date('YmdHis', strtotime($order_data['start_date'])); 
     $order_data['end_date'] = date('YmdHis', strtotime($order_data['end_date'])); 
    } 

    $meta_args = array(
     '_booking_order_item_id' => $order_data['order_item_id'], 
     '_booking_product_id' => $order_data['product_id'], 
     '_booking_resource_id' => $order_data['resource_id'], 
     '_booking_persons'  => $order_data['persons'], 
     '_booking_cost'   => $order_data['cost'], 
     '_booking_start'   => $order_data['start_date'], 
     '_booking_end'   => $order_data['end_date'], 
     '_booking_all_day'  => intval($order_data['all_day']), 
     '_booking_parent_id'  => $order_data['parent_id'], 
     '_booking_customer_id' => $order_data['user_id'], 
    ); 

    foreach ($meta_args as $key => $value) { 
     update_post_meta($this->id, $key, $value); 
    } 

    WC_Cache_Helper::get_transient_version('bookings', true); 

    do_action('woocommerce_new_booking', $this->id); 
} 

/** 
* Assign this booking to an order and order item by ID 
* @param int $order_id 
* @param int $order_item_id 
*/ 
public function set_order_id($order_id, $order_item_id) { 
    $this->order_id = $order_id; 
    wp_update_post(array('ID' => $this->id, 'post_parent' => $this->order_id)); 
    update_post_meta($this->id, '_booking_order_item_id', $order_item_id); 
} 

/** 
* Populate the data with the id of the booking provided 
* Will query for the post belonging to this booking and store it 
* @param int $booking_id 
*/ 
public function populate_data($booking_id) { 
    if (! isset($this->post)) { 
     $post = get_post($booking_id); 
    } 

    if (is_object($post)) { 
     // We have the post object belonging to this booking, now let's populate 
     $this->id   = $post->ID; 
     $this->booking_date = $post->post_date; 
     $this->modified_date = $post->post_modified; 
     $this->customer_id = $post->post_author; 
     $this->custom_fields = get_post_meta($this->id); 
     $this->status  = $post->post_status; 
     $this->order_id  = $post->post_parent; 

     // Define the data we're going to load: Key => Default value 
     $load_data = array(
      'product_id' => '', 
      'resource_id' => '', 
      'persons'  => array(), 
      'cost'  => '', 
      'start'  => '', 
      'customer_id' => '', 
      'end'   => '', 
      'all_day'  => 0, 
      'parent_id' => 0, 
     ); 

     // Load the data from the custom fields (with prefix for this plugin) 
     $meta_prefix = '_booking_'; 

     foreach ($load_data as $key => $default) { 
      if (isset($this->custom_fields[ $meta_prefix . $key ][0]) && $this->custom_fields[ $meta_prefix . $key ][0] !== '') { 
       $this->$key = maybe_unserialize($this->custom_fields[ $meta_prefix . $key ][0]); 
      } else { 
       $this->$key = $default; 
      } 
     } 

     // Start and end date converted to timestamp 
     $this->start = strtotime($this->start); 
     $this->end = strtotime($this->end); 

     // Save the post object itself for future reference 
     $this->post = $post; 
     return true; 
    } 

    return false; 
} 

/** 
* Will change the booking status once the order is paid for 
* @return bool 
*/ 
public function paid() { 
    $current_status = $this->status; 
    $event   = wp_get_schedule('wc-booking-reminder', array($this->id)); 

    if ($this->populated && in_array($current_status, array('unpaid', 'confirmed'))) { 
     $this->update_status('paid'); 

     if (! empty($event)) { 
      $this->schedule_events(); 
     } 

     return true; 
    } 

    return false; 
} 

/** 
* Set the new status for this booking 
* @param string $status 
* @return bool 
*/ 
public function update_status($status) { 
    $current_status = $this->get_status(true); 
    $allowed_statuses = array('unpaid', 'pending-confirmation', 'confirmed', 'paid', 'cancelled', 'complete', 'in-cart', 'was-in-cart'); 

    if ($this->populated) { 
     if (in_array($status, $allowed_statuses)) { 
      wp_update_post(array('ID' => $this->id, 'post_status' => $status)); 

      // Reschedule cron 
      $this->schedule_events(); 

      // Trigger actions 
      do_action('woocommerce_booking_' . $current_status . '_to_' . $status, $this->id); 
      do_action('woocommerce_booking_' . $status, $this->id); 

      // Note in the order 
      if ($order = $this->get_order()) { 
       $order->add_order_note(sprintf(__('Booking #%d status changed from "%s" to "%s', 'woocommerce-bookings'), $this->id, $current_status, $status)); 
      } 

      return true; 
     } 
    } 

    return false; 
} 

/** 
* Checks the booking status against a passed in status. 
* 
* @return bool 
*/ 
public function has_status($status) { 
    return apply_filters('woocommerce_booking_has_status', (is_array($status) && in_array($this->get_status(), $status)) || $this->get_status() === $status ? true : false, $this, $status); 
} 

/** 
* Returns the status of this booking 
* @param Bool to ask for pretty status name (if false) 
* @return String of the booking status 
*/ 
public function get_status($raw = true) { 
    if ($this->populated) { 
     if ($raw) { 
      return $this->status; 
     } else { 
      $status_object = get_post_status_object($this->status); 
      return $status_object->label; 
     } 
    } 

    return false; 
} 

/** 
* Returns the id of this booking 
* @return Id of the booking or false if booking is not populated 
*/ 
public function get_id() { 
    if ($this->populated) { 
     return $this->id; 
    } 

    return false; 
} 

/** 
* Get the product ID for the booking 
* @return int or false if booking is not populated 
*/ 
public function get_product_id() { 
    if ($this->populated) { 
     return $this->product_id; 
    } 

    return false; 
} 

/** 
* Returns the object of the order corresponding to this booking 
* @return Product object or false if booking is not populated 
*/ 
public function get_product() { 
    if (empty($this->product)) { 
     if ($this->populated && $this->product_id) { 
      $this->product = get_product($this->product_id); 
     } else { 
      return false; 
     } 
    } 

    return $this->product; 
} 

/** 
* Returns the object of the order corresponding to this booking 
* @return Order object or false if booking is not populated 
*/ 
public function get_order() { 
    if (empty($this->order)) { 
     if ($this->populated && ! empty($this->order_id) && 'shop_order' === get_post_type($this->order_id)) { 
      $this->order = wc_get_order($this->order_id); 
     } else { 
      return false; 
     } 
    } 

    return $this->order; 
} 

/** 
* Returns the cancel URL for a booking 
* 
* @param string $redirect 
* @return string 
*/ 
public function get_cancel_url($redirect = '') { 
    $cancel_page = get_permalink(wc_get_page_id('myaccount')); 

    if (! $cancel_page) { 
     $cancel_page = home_url(); 
    } 

    return apply_filters('bookings_cancel_booking_url', wp_nonce_url(add_query_arg(array('cancel_booking' => 'true', 'booking_id' => $this->id, 'redirect' => $redirect), $cancel_page), 'woocommerce-bookings-cancel_booking')); 
} 

/** 
* Return if all day event 
* @return boolean 
*/ 
public function is_all_day() { 
    if ($this->populated) { 
     if ($this->all_day) { 
      return true; 
     } else { 
      return false; 
     } 
    } 
    return false; 
} 

/** 
* See if this booking is booked on said date 
* @return boolean 
*/ 
public function is_booked_on_day($block_start, $block_end) { 
    if ($this->populated) { 
     $loop_date  = $this->start; 
     $multiday_booking = date('Y-m-d', $this->start) < date('Y-m-d', $this->end); 

     if ($multiday_booking) { 
      if (date('YmdHi', $block_end) > date('YmdHi', $this->start) || date('YmdHi', $block_start) < date('YmdHi', $this->end)) { 
       return true; 
      } 
      return false; 
     } 

     while ($loop_date <= $this->end) { 
      if (date('Y-m-d', $loop_date) === date('Y-m-d', $block_start)) { 
       return true; 
      } 
      $loop_date = strtotime("+1 day", $loop_date); 
     } 
    } 
    return false; 
} 

/** 
* See if this booking can still be cancelled by the user or not 
* @return boolean 
*/ 
public function passed_cancel_day() { 
    $booking = $this->get_product(); 

    if ($booking !== false) { 
     $cancel_limit  = $booking->wc_booking_cancel_limit; 
     $cancel_limit_unit = $cancel_limit > 1 ? $booking->wc_booking_cancel_limit_unit . 's' : $booking->wc_booking_cancel_limit_unit; 
     $cancel_string  = sprintf('now +%d %s', $cancel_limit, $cancel_limit_unit); 

     if (strtotime($cancel_string) >= $this->start) { 
      return true; 
     } 
    } 

    return false; 
} 

/** 
* Returns booking start date 
* @return string Date formatted via date_i18n 
*/ 
public function get_start_date($date_format = null, $time_format = null) { 
    if ($this->populated && ! empty($this->start)) { 
     if (is_null($date_format)) { 
      $date_format = apply_filters('woocommerce_bookings_date_format', 'M jS Y'); 
     } 
     if (is_null($time_format)) { 
      $time_format = apply_filters('woocommerce_bookings_time_format', ', g:ia'); 
     } 
     if ($this->is_all_day()) { 
      return date_i18n($date_format, $this->start); 
     } else { 
      return date_i18n($date_format . $time_format, $this->start); 
     } 
    } 

    return false; 
} 

/** 
* Returns booking end date 
* @return string Date formatted via date_i18n 
*/ 
public function get_end_date($date_format = null, $time_format = null) { 
    if ($this->populated && ! empty($this->end)) { 
     if (is_null($date_format)) { 
      $date_format = apply_filters('woocommerce_bookings_date_format', 'M jS Y'); 
     } 
     if (is_null($time_format)) { 
      $time_format = apply_filters('woocommerce_bookings_time_format', ', g:ia'); 
     } 
     if ($this->is_all_day()) { 
      return date_i18n($date_format, $this->end); 
     } else { 
      return date_i18n($date_format . $time_format, $this->end); 
     } 
    } 

    return false; 
} 

/** 
* Returns information about the customer of this order 
* @return array containing customer information 
*/ 
public function get_customer() { 
    if ($this->populated) { 
     $order = $this->get_order(); 

     if ($order) 
      return (object) array(
       'name' => trim($order->billing_first_name . ' ' . $order->billing_last_name), 
       'email' => $order->billing_email, 
       'user_id' => $order->customer_user, 
      ); 
     elseif ($this->customer_id) { 
      $user = get_user_by('id', $this->customer_id); 

      return (object) array(
       'name' => $user->display_name, 
       'email' => $user->user_email, 
       'user_id' => $this->customer_id 
      ); 
     } 
    } 

    return false; 
} 

/** 
* Returns if persons are enabled/needed for the booking product 
* @return boolean 
*/ 
public function has_persons() { 
    return $this->get_product()->has_persons(); 
} 

/** 
* Returns if resources are enabled/needed for the booking product 
* @return boolean 
*/ 
public function has_resources() { 
    return $this->get_product()->has_resources(); 
} 

/** 
* Return a array with the booking persons. 
* @return array 
*/ 
public function get_persons() { 
    return (array) $this->persons; 
} 

/** 
* Return the amount of persons for this booking. 
* @return int 
*/ 
public function get_persons_total() { 
    return array_sum($this->get_persons()); 
} 

/** 
* Get the resource id 
* @return int 
*/ 
public function get_resource_id() { 
    if ($this->populated) { 
     return absint($this->resource_id); 
    } 
    return 0; 
} 

/** 
* Get the resource/type for this booking if applicable. 
* @return bool|object WP_Post 
*/ 
public function get_resource() { 
    $resource_id = $this->get_resource_id(); 

    if (! $resource_id || ! ($product = $this->get_product()) || ! method_exists($product, 'get_resource')) { 
     return false; 
    } 

    return $product->get_resource($resource_id); 
} 

}

and on line 57

/** 
* Returns if persons are enabled/needed for the booking product 
* @return boolean 
*/ 
public function has_persons() { 
    return $this->get_product()->has_persons(); 
} 

有人可以幫我嗎？

謝謝

Answer 1

我解決了正好與此修復程序相同的錯誤消息：

在文件夾 在/ var/www/html等/可溼性粉劑內容/插件/ woocommerce-預訂/包括

在文件中： 類-WC-booking.php

替換：

/** 
* Returns if persons are enabled/needed for the booking product 

* @return boolean 

*/ 



public function has_persons() { 
    return $this->get_product()->has_persons(); 
} 

通過：

/** 
* Returns if persons are enabled/needed for the booking product 

* @return boolean 

*/ 



public function has_persons() { 
    if ($this->get_product()) { 

    return $this->get_product()->has_persons(); 
     } else 
     { 
     return 0; 
    } 

}