Question

我创建了一个函数来计算基于下面2个db表的帖子总数

1-帖子：

    post_id user_id 
=========== ==== 
          61 122
          62 122
          96 122
          97 122
          98 122

2- post_meta：

   meta_id  post_id   status 
   ======== =======   ======
       1      61         1
       2      62         0
       3      62         1
       4      91         1
       5      97         1
       6      98         1

因为user_id存在于帖子表中，而两个表上的唯一标识符是 post_id 我想查看status = 1和user_id = $ user_id的所有帖子 到目前为止我的模型功能

/**
 * The function get_all_user_post_count gets all count posts for admin dashboard
 * 
 * @return array with posts or false 
 */
public function get_all_user_post_count($user_id) {
    $this->db->select('network_name,COUNT(meta_id) as number', false);
    $this->db->from('posts_meta');
    $this->db->join('posts', 'posts_meta.post_id=posts.post_id', 'left');
    $this->db->where(['status' => '1', 'user_id' => $user_id]);
    $this->db->group_by('network_name');
    $this->db->order_by('network_name');
    $query = $this->db->get();
    if ($query->num_rows() > 0) {
        $result = $query->result();
        // Create new array
        $new_array = [];
        foreach ($result as $data) {
            $new_array[$data->network_name] = $data->number;
        }
        return $new_array;
    } else {
        return false;
    }
}

这是我到目前为止的控制器功能

// Count all sent posts per social network
        $count_sent_posts = $this->posts->get_all_user_post_count($this->user_id);
        $this->footer = [
            'statistics' => $statistics,
            'sent' => $count_sent_posts
        ];
        $this->user_layout();

发生数据库错误错误号：1052

列＆＃39;状态＆＃39; in where子句不明确

SELECT network_name，COUNT（meta_id）as number FROM posts_meta LEFT   加入posts posts_meta。post_id = posts。post_id WHERE   status =＆＃39; 1＆＃39;和user_id =＆＃39; 118＆＃39; GROUP BY network_name ORDER BY   network_name

文件名：models / Posts.php

行号：393

Answer 1

试试这一个=＆gt;

public function get_all_user_post_count($user_id) {
    $where = array('posts_meta.status ' => 1 , 'posts.user_id ' => $user_id);
    $this->db->select('posts_meta.network_name,COUNT(posts_meta.meta_id) as number', false);
    $this->db->from('posts_meta');
    $this->db->join('posts', 'posts_meta.post_id=posts.post_id', 'left');
    $this->db->where($where);
    $this->db->group_by('posts_meta.network_name');
    $this->db->order_by('posts_meta.network_name');
    $query = $this->db->get();
    if ($query->num_rows() > 0) {
        $result = $query->result();
        // Create new array
        $new_array = [];
        foreach ($result as $data) {
            $new_array[$data->network_name] = $data->number;
        }
        return $new_array;
    } else {
        return false;
    }
}

基于来自codignitor

1 个答案: