Question

我还是CI的新手。我的一个朋友告诉我要开始研究它。我正在尝试将我刚才用PHP做的网站转换为CI。但我一直遇到问题。

我尝试的每次谷歌搜索似乎都无法找到结果。

我需要在同一页面上拥有2个不同的查询。

我的模特

class Fittv_model extends CI_Model
function __construct()
{
    parent::__construct();
    $this->load->database();
}

function get_fittv_chain()
{
    //get all entry
    $club_id = $_GET['club_id'];
    $query = $this->db->query("SELECT * FROM company_details WHERE id = '$club_id'");
    return $query->result();
}

function get_last_installs()
{
    //this will get the last 3 installs
    $club_id = $_GET['club_id'];
    $last_installs = $this->db->query("SELECT * FROM fit_tv_locations WHERE club_id = '$club_id' ORDER BY date DESC LIMIT 3");
    return $last_installs->result();
}

我的控制器。

class Fittv extends CI_Controller {
    function index()
    {
        $this->load->model('fittv_model');
        ##$data['query'] = $this->fittv_model->get_fittv_chain();
        $data = $this->fittv_model->get_fittv_chain();
        $data = $this->fittv_model->get_last_installs();
        $this->load->helper('url');
        $this->load->view('fittv/index', $data);
    }
}

问题是我对如何在视图页面上查看2个不同的模型没有任何线索。

我目前的错误如下：

A PHP Error was encountered
Severity: Notice
Message: Undefined variable: last_installs
Filename: fittv/index.php
Line Number: 23

下面是一个简单的视图，我试图用

查看数据

<?php
    foreach ($last_installs->result() as $row)
    {
        echo $row->location_name;
    }
?>

Answer 1

您必须使用associative array来分配值

function index()
{
    $this->load->model('fittv_model');
    ##$data['query'] = $this->fittv_model->get_fittv_chain();
    $data['chain'] = $this->fittv_model->get_fittv_chain();
    $data['installs'] = $this->fittv_model->get_last_installs();
    $this->load->helper('url');
    $this->load->view('fittv/index', $data);
}

在视图页面中使用$chain和$installs变量。

Codeigniter Views

Answer 2

您的模型中存在语法错误。您应该更喜欢CodeIgniter Active Record Method类来执行数据库查询。

class Fittv_model extends CI_Model
{    
  function __construct()
  {
    parent::__construct();
    $this->load->database();
  }


  function get_fittv_chain()
  {
   $tablename = 'yourTable';
   //get all entry
   $club_id = $_GET['club_id'];
   $query = $this->db->get_where($tablename, array('id' => $club_id));
   return $query->result();
  }

  function get_last_installs()
  {
  //this will get the last 3 installs
    $club_id = $_GET['club_id'];
    $last_installs = $this->db->query("SELECT * FROM fit_tv_locations WHERE club_id =              '$club_id' ORDER BY date DESC LIMIT 3");  //Convert this also
  return $last_installs->result();
   } 
}

你必须从控制器向你的视图传递assosiative array 。

class Fittv extends CI_Controller {

function index()
{
$this->load->model('fittv_model');
##$data['query'] = $this->fittv_model->get_fittv_chain();
$data['chain'] = $this->fittv_model->get_fittv_chain();
$data['install'] = $this->fittv_model->get_last_installs();
$this->load->helper('url');
$this->load->view('fittv/index', $data);

} }

在您看来，您的数据将以变量名称 $ chain和$ install 提供（无论您为数据数组添加的任何键在您的视图中变为多变）。

在同一页面上有两个查询

2 个答案: