我正在嘗試實現有關評論的通知，即 - 如果我對同一帖子的帖子和其他用戶發表評論，我會收到通知。我已經使用這個查詢如何實現評論通知？
SELECT id, owner_id, post_id, user_id2, COUNT(user_id2) AS num, type, UNIX_TIMESTAMP(date_done) AS date
FROM notification
WHERE owner_id = '$user_id' AND user_id2 != '$user_id'
ORDER BY date_done DESC
在上表處理的通知信息發佈者，owner_id是擁有該職位的人，在user_id2是那些在崗位評價。
如何告訴用戶ID爲17的用戶（用戶ID爲2和1）也在帖子中留言？
如果我應該使用第二張表，請告訴我結構應該如何。由於
我建議分離的文章和評論到單獨的表中有一個一對多的關係
後{ ID， USER_ID， 內容， 日期 }
評論{ ID， POST_ID ， user_id， comment， date }
然後，您可以通過超時ajax調用來輪詢您的評論。如果註釋是由不是您的user_id添加的，請在頁面中注入通知。
下面的查詢獲取誰曾評論
SELECT DISTINCT user_id2
FROM notification
WHERE post_id = '$post_id'
用戶（一個或多個），但你不希望目前通知人張貼所以......
SELECT DISTINCT user_id2
FROM notification
WHERE post_id = '$post_id'
AND user_id2 != '$user_id'
還是我失去了什麼？
我創建的這個類會給你細節。我已經完成了你需要用'notify_chain'方法做的事情。你需要看看其他的功能，所以我會在這裏發佈整個班級給你。
<?php
class Notification extends DatabaseObject{
public $id;
public $type;
public $post_id;
public $owner_id;
public $user_id2;
public $date_done;
public $read_or_not;
public $notifications;
public $message;
public $count;
protected static $table_name="notifier";
protected static $db_fields = array('id', 'type', 'post_id', 'owner_id', 'user_id2', 'date_done', 'read_or_not');
public function check_notification(){
global $database;
global $session;
if($session->is_logged_in()) {
$id=$session->user_id;
$sql = "SELECT * FROM notifier WHERE owner_id={$id} AND read_or_not = 0";
$chk = $database->query($sql);
if(!empty($chk)){
while($notifs = $database->fetch_assoc($chk)){
$message="";
$this->notifications[] = $notifs;
$this->id = $notifs['id'];
$this->type = $notifs['type'];
$this->post_id = $notifs['post_id'];
$this->owner_id = $notifs['owner_id'];
$this->user_id2 = $notifs['user_id2'];
$this->date_done = $notifs['date_done'];
$this->read_or_not = $notifs['read_or_not'];
foreach($notifs as $notif){
$user=Member::get_name($this->user_id2, false);
if($this->type=="comment"){
$message = "<a href='post.php?post=".$this->post_id."&ntf_clr=".$this->post_id."'>".$user." commented on your post.</a>";
} elseif($this->type=="reply"){
$message = "<a href='comment_reply.php?c_id=".$this->post_id."&ntf_clr=".$this->post_id."&cmt=Comment&rpl=CommentReply'>".$user." replied to your comment.</a>";
} elseif($this->type=="discussion_comment"){
$message = "<a href='discussion.php?discussion=".$this->post_id."&ntf_clr=".$this->post_id."&cmt=Comment&rpl=CommentReply'>".$user." Commented on your discussion.</a>";
} elseif($this->type=="discussion_reply"){
$message = "<a href='comment_reply.php?c_id=".$this->post_id."&ntf_clr=".$this->post_id."&cmt=Comment&rpl=CommentReply'>".$user." replied to your discussion comment.</a>";
} elseif($this->type=="article_comment"){
$message = "<a href='article.php?article=".$this->post_id."&ntf_clr=".$this->post_id."'>".$user." Commented on your article.</a>";
} elseif($this->type=="article_reply"){
$message = "<a href='comment_reply.php?c_id=".$this->post_id."&ntf_clr=".$this->post_id."&cmt=ArticleComment&rpl=ArticleCommentReply'>".$user." replied to your article comment.</a>";
} elseif($this->type=="chain_comment"){
$message = "<a href='post.php?post=".$this->post_id."&ntf_clr=".$this->post_id."'>".$user." also commented to a post.</a>";
} elseif($this->type=="chain_reply"){
$message = "<a href='comment_reply.php?c_id=".$this->post_id."&ntf_clr=".$this->post_id."&cmt=Comment&rpl=CommentReply'>".$user." also replied to a comment.</a>";
}
}
$this->message = $message_array[] = $message;
} if(isset($message_array)){return $message_array;}
} else{
return false;
}
}
}
public static function mark_as_seen($notif_id){
global $database;
global $session;
$me = $session->user_id;
$sql = "UPDATE `notifier` SET read_or_not=1 WHERE owner_id = {$me} AND post_id={$notif_id}";
$clear_notification = $database->query($sql);
}
public static function make_notification($post_id, $owner_id, $user_id2, $type="comment"){
$notif = new Notification();
$notif->type=$type;
$notif->post_id=$post_id;
$notif->owner_id=$owner_id;
$notif->user_id2=$user_id2;
$notif->date_done=strftime("%Y-%m-%d %H:%M:%S", time());
$notif->read_or_not=0;
$notif->create();
}
public static function notif_count($id){
global $database;
$notif_cnt = $database->query("SELECT COUNT(*) as notifs FROM notifier WHERE owner_id={$id} AND read_or_not = 0");
$data=$database->fetch_array($notif_cnt);
return $data['notifs'];
}
public static function notify_chain($post_id, $user_id2, $type="chain_comment"){
global $database;
global $session;
$sql = "SELECT DISTINCT user_id2 ";
$sql .= "FROM notifier ";
$sql .= "WHERE post_id = {$post_id} ";
$sql .= "AND user_id2 != {$session->user_id} ";
$chain = $database->query($sql);
while ($users = $database->fetch_assoc($chain)){
$list = "";
foreach ($users as $user){
Notification::make_notification($post_id, $user, $user_id2, $type="chain_comment");
$list = $user;
}
$list_array[] = $list;
} return $list_array;
}
}
$notif = new Notification();
?>
我希望有所幫助。如果您有任何問題，請在facebook上查看maestrojosiah PG。
你需要一些東西來確認帖子不是嗎？您上面粘貼的查詢僅通過user_id從數據庫中進行選擇。 – Pete 2012-04-11 10:46:21
你怎麼知道通知被讀取，並且不再顯示它？ – safarov 2012-04-11 10:47:37
@Pete，該帖子已經有一個唯一的ID。我發佈的查詢現在不是真正的挑戰，但是查詢將通知發送給評論同一帖子的其他用戶。 – Chibuzo 2012-04-11 10:49:45