这是我的分页代码。在我的代码中,我将在每个页面中显示20个图像,但是我在第一页中获取所有图像,如果我再次单击page2,则显示相同的图像。请查看我的代码并给出我有价值的建议。谢谢。
控制器:
public function onSectorClick() {
$id = $_GET["id"];
$name = $_GET["name"];
$this->session->set_userdata('sub1category_id', $_GET['id']);
$this->session->set_userdata('sub1category_name', $_GET['name']);
$this->onSectorClickCopy();
}
public function onSectorClickCopy(){
$this->load->model('Categories_model');
$this->load->model('productdisplay_model');
$data['ListMenuLevel1'] = $this->Categories_model->listsector1();
$config = array();
$config["base_url"] = base_url() . "index.php/welcome/onSectorClick?id=". $this->session->userdata('sub1category_id')."&name=". $this->session->userdata('sub1category_name');
$total_row = $this->productdisplay_model->record_count();
$config['total_rows'] = $total_row;
$config['per_page'] = 20;
$config['use_page_numbers'] = TRUE;
$config['num_links'] = 1;
$config['cur_tag_open'] = ' <a class="current">';
$config['cur_tag_close'] = '</a>';
$config['next_link'] = 'Next';
$config['prev_link'] = 'Previous';
$this->load->library('pagination');
$this->pagination->initialize($config);
/*
if($this->uri->segment(3)){
$page = ($this->uri->segment(3)) ;
}else{
$page = 1;
}
*/
$page = ($this->uri->segment(3) != '' ? $this->uri->segment(3) : 1);
//$offset = $config['per_page']*$page;
$offset = (($config['per_page']) * ($page - 1)) + 1;
$limit = $config['per_page'] * $page;
$data['sub1products'] = $this->productdisplay_model->sub1Productsmenu($this->session->userdata('sub1category_id'),$limit, $offset);
$str_links = $this->pagination->create_links();
$data["links"] = explode(' ', $str_links);
$this->load->view('productlist', $data);
}
型号:
public function record_count() {
return $this->db->count_all("sub1_category");
}
public function sub1Productsmenu($id,$limit, $offset){
return $this->db->where('main_categoryid_fk',$id)->get('sub1_category')->result();
$this->db->where("sub1_category.id between '$offset' and '$limit'");
}
public function sub1Productfetch($id) {
$query = $this->db->select('product_image,sub1_category_name,product_description');
$this->db->from('sub3_category');
$this->db->join('sub2_category', 'sub3_category.sub2_categoryid_fk=sub2_category.id', 'left');
$this->db->join('sub1_category', 'sub2_category.sub1_categoryid_fk=sub1_category.id', 'left');
//$this->db->join('maincategory', 'sub1_category.main_categoryid_fk=maincategory.id', 'left');
$this->db->where('sub1_category.id',$id);
$this->db->order_by('rand()');
$this->db->limit(1);
return $this->db->get()->result();
}
查看:
<div class="container-main">
<?php
foreach ($sub1products as $row) {
foreach ($this->productdisplay_model->sub1Productfetch($row->id) as $menu1) {
?>
<!--<h5 class="product-head">Agriculture Products</h5>-->
<div class="col-xs-12 col-sm-4 col-md-3">
<div class="prod-container">
<a href="<?php echo base_url(); ?>index.php/welcome/onSectorClick1?id=<?php echo $row->id; ?>&name=<?php echo $row->sub1_category_name; ?>">
<div class="prod_img">
<img src="<?php echo 'data:image;base64,' . $menu1->product_image; ?>" width="100%"/>
</div>
<div class="prod_desc">
<div class="prod-round-icon"></div>
<h4 class="prod_title"><?php echo $row->sub1_category_name; ?></h4>
<p class="prod_text"><?php echo $menu1->product_description; ?></p>
</div>
<div class="sub-products">
<?php
$count = 0;
foreach ($this->productdisplay_model->sub2Productsmenu($row->id) as $menu2) {
?>
<p><i class="fa fa-angle-right"></i> <?php echo $menu2->sub2_category_name; ?></p>
<?php
$count++;
if ($count == 3) {
break;
}
}
?>
</div>
<div class="view-more"> view more</div>
</a>
</div>
</div>
<?php
}
}
?>
</div>
<div class="center">
<ul class="pagination">
<?php
foreach ($links as $link) {
echo "<li>" . $link . "</li>";
}
?>
</ul>
</div>
答案 0 :(得分:4)
在我的代码中,我刚刚更改了会话变量。然后一切正常。
<强>控制器强>
public function onSectorClick() {
$id = $_GET["id"];
$this->session->set_userdata('sub1_id', $_GET['id']);
$this->onSectorClickCopy();
}
public function onSectorClickCopy(){
if ($this->session->userdata('log_in') == TRUE) {
$id = $this->session->userdata('id');
$this->load->model('cart_model');
$data["count"] = $this->cart_model->count_rows($id);
}
$data['ListMenuLevel1'] = $this->Categories_model->listsector1();
$config = array();
$config["base_url"] = base_url() . "index.php/welcome/onSectorClickCopy";
$total_row = $this->productdisplay_model->record_count($this->session->userdata('sub1_id'));
$config['total_rows'] = $total_row;
$config['per_page'] = 20;
//$config['uri_segment'] = 3;
$config['use_page_numbers'] = TRUE;
//$config['page_query_string'] = TRUE;
//$config['reuse_query_string'] = FALSE;
$config['num_links'] = 1;
$config['cur_tag_open'] = ' <a class="current">';
$config['cur_tag_close'] = '</a>';
$config['next_link'] = 'Next';
$config['prev_link'] = 'Previous';
$this->load->library('pagination');
$this->pagination->initialize($config);
/* if($this->uri->segment(3)){
$page = ($this->uri->segment(3)) ;
}
else{
$page = 1;
} */
$page = ($this->uri->segment(3) != '' ? $this->uri->segment(3) : 1);
//$offset = $config['per_page']*$page;
$offset = (($config['per_page']) * ($page - 1));
$limit = $config['per_page']+1;
$data['sub1products'] = $this->productdisplay_model->sub1Productsmenu($this->session->userdata('sub1_id'),$limit, $offset);
$str_links = $this->pagination->create_links();
$data["links"] = explode(' ', $str_links);
$this->load->view('productlist', $data);
}
<强>模型强>
public function record_count($id) {
$this->db->select('*');
$this->db->from('sub1_category');
$this->db->where('main_categoryid_fk', $id);
$this->db->order_by("sub1_category.main_categoryid_fk ");
$query = $this->db->get();
return $query->num_rows();
}
public function sub1Productsmenu($id,$limit, $offset){
$this->db->select('*');
$this->db->from('sub1_category');
$this->db->where('main_categoryid_fk', $id);
$this->db->order_by("sub1_category.main_categoryid_fk ");
$this->db->limit($limit, $offset);
return $this->db->get()->result();
}
public function sub1Productfetch($id) {
$query = $this->db->select('product_image,sub1_category_name,product_description');
$this->db->from('sub3_category');
$this->db->join('sub2_category', 'sub3_category.sub2_categoryid_fk=sub2_category.id', 'left');
$this->db->join('sub1_category', 'sub2_category.sub1_categoryid_fk=sub1_category.id', 'left');
$this->db->join('maincategory', 'sub1_category.main_categoryid_fk=maincategory.id', 'left');
$this->db->where('sub1_category.id',$id);
//$this->db->order_by('rand()');
$this->db->limit(1);
return $this->db->get()->result();
}
答案 1 :(得分:2)
正如我在您的代码中看到的那样:
public function sub1Productsmenu($id,$limit, $offset){
return $this->db->where('main_categoryid_fk',$id)->get('sub1_category')->result();
$this->db->where("sub1_category.id between '$offset' and '$limit'");
}
你错了&#34 ;;&#34;在第二行。它总是返回所有的recods,因为WHERE条件不适用。