Question

我在Code Igniter中比较新，我第一次尝试使用Code Igniter分页类。我正在尝试在我的数据库表中获取一些行，具体取决于用户选择的状态，lga和类别。这三个作为参数传递给函数。我已经按照我在SO和其他一些网站上找到的流程来实现页面上的分页，它似乎有效，除了它不会返回具有指定参数的所有行。

这就是我所拥有的：

模型 - Posts_model.php

public function count_lga_cat_posts($state, $lga, $category) {
        return $this->db->get_where('lga_posts', array('state' => $state, 'lga' => $lga, 'category' => $category, 'display' => 'true'))->num_rows();
    }

    public function fetch_lga_cat_data($limit, $start) {
        $this->db->limit($limit, $start);
        $this->db->order_by("id", "desc");
        $query = $this->db->get("lga_posts");
        if ($query->num_rows() > 0) {
            foreach ($query->result() as $row) {
                $data[] = $row;
            }
            return $data;
        }
            return false;
    }

控制器 - Lga_posts.php

public function selected_state_lga_posts_category($state, $lga, $category)
    {       
        //config for pagination
        $config = array();
        $uri_seg = 5;
        $config["base_url"] = base_url('state2/'.$state.'/'.$lga.'/'.$category); //as specified in routes
        $config["total_rows"] = $this->posts_model->count_lga_cat_posts($state, $lga, $category);
        $config["per_page"] = 3;
        $config["uri_segment"] = $uri_seg;
        $config['use_page_numbers'] = TRUE;
        $config['cur_tag_open'] = '&nbsp;<a class="current">';
        $config['cur_tag_close'] = '</a>';
        $config['first_link'] = 'Back to first page';
        $config['next_link'] = 'View more posts';
        $config['prev_link'] = 'Previous posts';
        $config['last_link'] = 'Jump to last page';
        $config['display_pages'] = FALSE;

        $this->pagination->initialize($config);
        $page = ($this->uri->segment($uri_seg))? $this->uri->segment($uri_seg) : 0;
        $this->db->where(array('state' => $state, 'lga' => $lga, 'category' => $category, 'display' => 'true'));
        $data["results"] = $this->posts_model->fetch_lga_cat_data($config["per_page"], $page);
        $str_links = $this->pagination->create_links();
        $data["links"] = explode('&nbsp;',$str_links );     
        $data['state'] = $state;
        $data['lga'] = $lga;
        $data['category'] = $category;
        $this->load->view('posts/lga/selected_state_lga_posts_category', $data);

当我加载此页面时，一切似乎都正常工作，分页链接按预期工作，但表中的某些行不会被拉，即使它们具有与拉出和显示的参数相同的参数。如果我将per_page配置更改为1，则最后一页会给出错误“foreach中的无效参数”或类似内容。我想知道它是否与我的查询有关，因为我不想获取表中的所有行，而是那些具有所选参数的行，即state，lga和category。

有人可以指出我做错了吗？

Code Igniter分页不会返回具有相同参数的所有行

0 个答案: