發佈評級系統功能

Question

下面是簡單的發佈後評級系統的代碼（教程從這個網站TUTORIAL） - 它工作正常，但我需要改變一下。現在用戶投票後，他無法再爲$ timebeforevote（1440分鐘）投票。我想阻止所有帖子的用戶投票，而不僅僅是這一個。

我認爲這個問題是功能與此代碼，查找用戶的IP在目前的職位元現場：

$meta_IP = get_post_meta($post_id, "voted_IP"); 
$voted_IP = $meta_IP[0]; 

返回$voted_IP並與$ip = $_SERVER['REMOTE_ADDR'];比較我試圖與查詢修改它（其中查詢查找所有職位元字段ip）所以它會搜索所有職位的IP，但它沒有工作。我試圖讓它工作2天，沒有任何工作。

發佈評分系統代碼：用於查詢發現，如果用戶已經投票，但問題是，經過$ timebeforerevote IP值保持在元場，所以我不能用它

$timebeforerevote = 1440; 

add_action('wp_ajax_nopriv_post-like', 'post_like'); 
add_action('wp_ajax_post-like', 'post_like'); 

wp_enqueue_script('like_post', get_template_directory_uri().'/js/post-like.js', array('jquery'), '1.0', 1); 
wp_localize_script('like_post', 'ajax_var', array(
    'url' => admin_url('admin-ajax.php'), 
    'nonce' => wp_create_nonce('ajax-nonce') 
)); 

function post_like() 
{ 
    $nonce = $_POST['nonce']; 

    if (! wp_verify_nonce($nonce, 'ajax-nonce')) 
     die ('Busted!'); 

    if(isset($_POST['post_like'])) 
    { 
     $ip = $_SERVER['REMOTE_ADDR']; 
     $post_id = $_POST['post_id']; 

     $meta_IP = get_post_meta($post_id, "voted_IP"); 

     $voted_IP = $meta_IP[0]; 
     if(!is_array($voted_IP)) 
      $voted_IP = array(); 

     $meta_count = get_post_meta($post_id, "votes_count", true); 

     if(!hasAlreadyVoted($post_id)) 
     { 
      $voted_IP[$ip] = time(); 

      update_post_meta($post_id, "voted_IP", $voted_IP); 
      update_post_meta($post_id, "votes_count", ++$meta_count); 

      echo $meta_count; 
     } 
     else 
      echo "already"; 
    } 
    exit; 
} 

function hasAlreadyVoted($post_id) 
{ 
    global $timebeforerevote; 

    $meta_IP = get_post_meta($post_id, "voted_IP"); 
    $voted_IP = $meta_IP[0]; 
    if(!is_array($voted_IP)) 
     $voted_IP = array(); 
    $ip = $_SERVER['REMOTE_ADDR']; 

    if(in_array($ip, array_keys($voted_IP))) 
    { 
     $time = $voted_IP[$ip]; 
     $now = time(); 

     if(round(($now - $time)/60) > $timebeforerevote) 
      return false; 

     return true; 
    } 

    return false; 
} 

function getPostLikeLink($post_id) 
{ 
    $themename = "twentyeleven"; 

    $vote_count = get_post_meta($post_id, "votes_count", true); 

    $output = '<p class="post-like">'; 

    if ($vote_count == 0) 
     $output .= '<span class="count">0<span class="glosow"><br>głosów w rankingu</span></span>'; 
    else 
     $output .= '<span class="count">'.$vote_count.'<span class="glosow"><br>głosów w rankingu</span></span>'; 

    if(hasAlreadyVoted($post_id)) 
     $output .= '<span title="Już głosowałeś" class="qtip alreadyvoted"></span>'; 
    else 
     $output .= '<a href="#" data-post_id="'.$post_id.'"> 
        <span title="'.__('Głosuj', $themename).'"class="qtip like"></span></a>'; 
    $output .= '</p>'; 

    return $output; 
} 

繼承人代碼。我沒有更多的想法，現在...

$ip = $_SERVER['REMOTE_ADDR']; 
$query = new WP_Query(array( 
    'ignore_sticky_posts' => true, 
    'meta_key' => 'voted_IP', 
    'meta_value' => $ip 
)); 
if (0 !== $query->found_posts) { 
    //do something 
} 

Answer 1

此代碼：

 $voted_IP[$ip] = time(); 

     update_post_meta($post_id, "voted_IP", $voted_IP); 
     update_post_meta($post_id, "votes_count", ++$meta_count); 

...指示投票的嘗試都存儲在後的voted_IP元，在ip=>timestamp陣列的形式。這使得您的查詢中的'meta_value' => $ip無效，因爲您試圖將字符串與數組進行匹配。相反，只是查詢具有此元鍵的所有帖子，然後做一些重複：

global $post; 
$tmp=$post; 
$recently_voted=false; 
$ip = $_SERVER['REMOTE_ADDR']; 
$query = new WP_Query(array( 
    'ignore_sticky_posts' => true, 
    'meta_key' => 'voted_IP', 
// 'meta_value' => $ip // invalid... 
)); 
if (0 !== $query->found_posts) { 
    $now=time(); 
    while($query->have_posts()) 
    { 
    $id=$post->id; 
    $meta_IP=get_post_meta($id,"voted_IP"); // this is an array 
    if(isset($meta_IP[$ip])&&($now-$meta_IP[$ip]<1440*60)) 
     { 
     $recently_voted=true; // found at least one recent vote 
     break; 
     } 
    } 
} 
$post=$tmp;