在模型中使用查询的 Codeigniter 分页

Posted 2023-05-08

【中文标题】在模型中使用查询的 Codeigniter 分页

【英文标题】：Codeigniter Pagination Using Query in Model

【发布时间】：2015-07-03 20:18:12

【问题描述】：

我想使用 codeigniter 进行分页，但没有成功。 在我的模型中我这样使用

function show_kegiatan($offset,$limit) 
        $query= $this->db->query("SELECT kegiatan . * , lk . * , fakultas.* , count( kegiatan_review.reviews ) AS 'Komentar', fakultas.*
                                    FROM kegiatan 
                                    INNER JOIN lk ON lk.id_LK = kegiatan.id_LK
                                    INNER JOIN fakultas on fakultas.id_fakultas = lk.id_fakultas
                                    LEFT OUTER JOIN kegiatan_review ON kegiatan.id_kegiatan = kegiatan_review.id_kegiatan   
                                    GROUP BY kegiatan.id_kegiatan
                                    ORDER BY kegiatan.tahun_periode DESC
                                    limit $offset",$limit);
        if ($query->num_rows() > 0) 
            return $query->result();
        
    

在我的控制器中

public function kegiatan($offset=0) 
           $data['user']=$this->m_login->get_user($this->session->userdata('sesi_admin'));           
           $jml = $this->db->get('kegiatan');           
           $config['base_url'] = base_url().'admin/kegiatan';

           $config['total_rows'] = $jml->num_rows();
           $config['per_page'] = 3; 
           $config['uri_segment'] = 3; 

           $config['full_tag_open'] = "<ul class='pagination pagination-sm' style='position:relative; top:-25px;'>";
           $config['full_tag_close'] ="</ul>";
           $config['num_tag_open'] = '<li>';
           $config['num_tag_close'] = '</li>';
           $config['cur_tag_open'] = "<li class='disabled'><li class='active'><a href='#'>";
           $config['cur_tag_close'] = "<span class='sr-only'></span></a></li>";
           $config['next_tag_open'] = "<li>";
           $config['next_tagl_close'] = "</li>";
           $config['prev_tag_open'] = "<li>";
           $config['prev_tagl_close'] = "</li>";
           $config['first_tag_open'] = "<li>";
           $config['first_tagl_close'] = "</li>";
           $config['last_tag_open'] = "<li>";
           $config['last_tagl_close'] = "</li>";

           $this->pagination->initialize($config);

           $data['halaman'] = $this->pagination->create_links();           
           $data['offset'] = $offset;

           $data['kegiatan'] = $this->m_admin->show_kegiatan($config['per_page'], $offset);

           $this->load->templateadmin('in/admin_kegiatan',$data);   
  

在我的输出中，Offset 确实有效，但数据无法成功运行。我的模型有什么问题？

【参考方案1】：

您可以使用$this->uri->segment(3) 替换您的$offset

请尝试这个示例，其余的您必须更改以满足您的需要...

在你的模型中：

function show_kegiatan($perPage, $uri) 
    $uri = ($uri == null || $uri==''?0:$uri);       
    $this->db->select('kegiatan.kolommu1,kegiatan.kolommu2,lk.kolommu1,lk.kolommu2')->from('kegiatan')->join('lk','lk.id_LK = kegiatan.id_LK')->order_by('kegiatan.id_kegiatan','desc')->limit($perPage,$uri);
    $hasil = $this->db->get()->result_array();      
    return (sizeof($hasil) > 0?$hasil:null);

在您的控制器中：

function kegiatan()
    $jml = $this->db->get('kegiatan')->num_rows();

    $config['full_tag_open'] = "<ul class='pagination pagination-sm' style='position:relative; top:-25px;'>";
    $config['full_tag_close'] ="</ul>";
    $config['num_tag_open'] = '<li>';
    $config['num_tag_close'] = '</li>';
    $config['cur_tag_open'] = "<li class='disabled'><li class='active'><a href='#'>";
    $config['cur_tag_close'] = "<span class='sr-only'></span></a></li>";
    $config['next_tag_open'] = "<li>";
    $config['next_tagl_close'] = "</li>";
    $config['prev_tag_open'] = "<li>";
    $config['prev_tagl_close'] = "</li>";
    $config['first_tag_open'] = "<li>";
    $config['first_tagl_close'] = "</li>";
    $config['last_tag_open'] = "<li>";
    $config['last_tagl_close'] = "</li>";

    $config['base_url'] = site_url('admin/kegiatan');
    $config['total_rows'] = $jml;
    $config['per_page'] = 3;
    $config['uri_segment'] = 3;
    $config['first_link'] = 'Awal';
    $config['last_link'] = 'Akhir';
    $config['next_link'] = 'Selanjutnya';
    $config['prev_link'] = 'Sebelumnya';

    $this->pagination->initialize($config);
    $data['kegiatan'] = $this->m_admin->show_kegiatan($config['per_page'], $this->uri->segment(3));

    $data['halaman'] = $this->pagination->create_links();
    $this->load->view('layout/admin/v_dashboard',$data);

    $this->load->templateadmin('in/admin_kegiatan',$data);   

【参考方案2】：

limit $offset",$limit

应该是

limit $offset,$limit"