Question

通过Codeigniter按下按钮时，我正在加载更多数据功能

我在我面前遇到了这个问题无法解决它也许问题是数组没有传递给视图!! 你能帮忙吗？

的Javascript

<div id="Ebda2">
<?php foreach ($data['latest_messages'] as $ads)

    {
echo $ads->current_price;

   echo '<div class="water">';
echo 'div class="eye-top">';
echo '<a href="#"><img class="img-responsive" src="public/images/9.jpg" alt=""></a>';

echo '</div>';
echo '<div class="title-blue">';
echo '<h4><a href="#">';
echo $ads->name;
echo "</a></h4>";
echo "<p>";
echo $ads->description;

echo'</p>';

echo '</div>';

}       
?>



</div>
<div id="more_button">
more
</div>

查看

function __construct(){
    parent::__construct();
                $this->load->model('ads_model');

}

public function index(){
            if($this->session->userdata('logged_in'))
{
    $this->load->model('ads_model');
$data['num_messages'] = $this->ads_model->num_ads();
$data['latest_messages'] = $this->ads_model->get_ads();
$this->load->view('e3lanat_view', $data);
}
else
{
 redirect('signin', 'refresh');
 }
    }
public function insert_rows()
{
$i = 0;
while($i < 50)
{
    $i++;
    $data = array('name' => 'name ' . $i, 'description' => 'description ' . $i,
                'user_id' => 9, 'cat_id' => '1',
                'current_owner_id' => 10, 'cat_id' => '1',

                'initial_price'=> $i+10,
                'current_price'=> $i+50,
                'increase_price'=> $i+30
                );
    $this->db->insert('ads', $data);
    echo $i. '<br />';
}
}


public function get_ads($offset)
{
$this->load->model('ads_model');
$data['latest_messages'] = $this->ads_model->get_ads($offset);
$this->load->view('e3lanat_view/get_ads', $data);
}


**Model**

class ads_model extends CI_Model {
public function __construct()
{
parent::__construct();
}



function get_ads($offset=0)
{
$this->db->order_by('ads_id', 'desc');
$query = $this->db->get('ads', 10, $offset);
return $query->result();
}

function num_ads()
{
$query = $this->db->count_all_results('ads');
return $query;
}
}

控制器

{{1}}

提前致谢：）

Answer 1

您正在尝试加载视图而不是返回数据。

在控制器中：

       root GET    /                                       dashboard#index
       help GET    /help(.:format)                         static_pages#help
      about GET    /about(.:format)                        static_pages#about
    contact GET    /contact(.:format)                      static_pages#contact
  customers GET    /customers(.:format)                    customers#index
            POST   /customers(.:format)                    customers#create
new_customer GET    /customers/new(.:format)                customers#new
edit_customer GET    /customers/:id/edit(.:format)           customers#edit
   customer GET    /customers/:id(.:format)                customers#show
            PATCH  /customers/:id(.:format)                customers#update
            PUT    /customers/:id(.:format)                customers#update
            DELETE /customers/:id(.:format)                customers#destroy
   contacts GET    /contacts(.:format)                     contacts#index
            POST   /contacts(.:format)                     contacts#create
new_contact GET    /contacts/new(.:format)                 contacts#new
edit_contact GET    /contacts/:id/edit(.:format)            contacts#edit
            GET    /contacts/:id(.:format)                 contacts#show
            PATCH  /contacts/:id(.:format)                 contacts#update
            PUT    /contacts/:id(.:format)                 contacts#update
            DELETE /contacts/:id(.:format)                 contacts#destroy

在View Javascript中：

public function get_ads($offset) {
    $this->load->model('ads_model');
    $data['latest_messages'] = $this->ads_model->get_ads($offset);
    return json_encode($data['latest_messages']);
}

现在您需要迭代JSON并将数据附加到视图中。了解如何Loop through JSON object List并向视图添加数据将如下所示：

$.get("e3lanat/get_ads/" + loaded_ads, function(data){
    console.log(data);
});

Answer 2

更改此

<?php foreach ($data['latest_messages'] as $ads)

到

 <?php foreach ($latest_messages as $ads)

PHP错误未定义变量：data - 使用Codeigniter加载更多数据

2 个答案: