Php CodeIgniter应用程序3错误:搜索结果分页不正确?
我正在使用CodeIgniter 3.1.8和Bootstrap 4开发 我将应用程序的后端(仪表板)与其前端分离,并使用细枝作为前端视图和添加主题 我认为为后端添加一个搜索功能是个好主意,这样可以方便地浏览自己的帖子(文章) 在myPosts controller(Php CodeIgniter应用程序3错误:搜索结果分页不正确?,php,codeigniter,codeigniter-3,Php,Codeigniter,Codeigniter 3,我正在使用CodeIgniter 3.1.8和Bootstrap 4开发 我将应用程序的后端(仪表板)与其前端分离,并使用细枝作为前端视图和添加主题 我认为为后端添加一个搜索功能是个好主意,这样可以方便地浏览自己的帖子(文章) 在myPosts controller(application\controller\dashboard\Posts.php)中,我有: 视图(posts.php): # 标题 出版日期 行动 奇怪的是,虽然所有的帖子都有页码,但是搜索结果 分页不好:例如,当我执行返回
application\controller\dashboard\Posts.php
)中,我有:
视图(posts.php):
#
标题
出版日期
行动
奇怪的是,虽然所有的帖子都有页码,但是搜索结果
分页不好:例如,当我执行返回的搜索时
11结果,即应显示在两页上,分页
显示所有页面,而不是两页
因为您在total_rows配置中使用了所有行计数:
$config['total_rows']=$this->Posts_model->get_num_rows()代码>
在搜索功能中,您需要使用搜索结果的计数:
此结果的行数不带$limit
,和$offset
:
public function search() {
if (!$this->session->userdata('is_logged_in')) {
redirect('login');
}
// Force validation since the form's method is GET
$this->form_validation->set_data($this->input->get());
$this->form_validation->set_rules('search', 'Search term', 'required|trim|min_length[3]',array('min_length' => 'The Search term must be at least 3 characters long.'));
$this->form_validation->set_error_delimiters('<p class = "error search-error">', '</p>
');
// If search fails
if ($this->form_validation->run() === FALSE) {
return $this->index();
} else {
$expression = $this->input->get('search');
if (!$this->session->userdata('is_logged_in')) {
redirect('login');
}
//load and configure pagination
$this->load->library('pagination');
$config['base_url'] = base_url("/dashboard/posts");
$config['query_string_segment'] = 'page';
// Only one line changed below
$config['total_rows'] = $this->Posts_model->search_count($expression);
$config['per_page'] = 10;
if (!isset($_GET[$config['query_string_segment']]) || $_GET[$config['query_string_segment']] < 1) {
$_GET[$config['query_string_segment']] = 1;
}
$limit = $config['per_page'];
$offset = $limit * ($this->input->get($config['query_string_segment']) - 1);
$this->pagination->initialize($config);
$data = $this->get_data();
$data['expression'] = $expression;
$data['posts'] = $this->Posts_model->search($expression, $limit, $offset);
$data['offset'] = $offset;
$this->load->view('dashboard/partials/header', $data);
$this->load->view('dashboard/posts');
$this->load->view('dashboard/partials/footer');
}
}
公共函数搜索(){
如果(!$this->session->userdata('is\u logged\u in')){
重定向(“登录”);
}
//强制验证,因为表单的方法是GET
$this->form\u validation->set\u data($this->input->get());
$this->form_validation->set_rules('search','search term','required | trim | min|u length[3]',array('min|length'=>'搜索项长度必须至少为3个字符');
$this->form\u validation->set\u error\u分隔符(“”,”
');
//如果搜索失败
如果($this->form\u validation->run()==FALSE){
返回$this->index();
}否则{
$expression=$this->input->get('search');
如果(!$this->session->userdata('is\u logged\u in')){
重定向(“登录”);
}
//加载和配置分页
$this->load->library('pagination');
$config['base_url']=base_url(“/dashboard/posts”);
$config['query_string_segment']='page';
//下面只换了一行
$config['total\u rows']=$this->Posts\u model->search\u count($expression);
$config['per_page']=10;
如果(!isset($\u GET[$config['query\u string\u segment']]))$\u GET[$config['query\u string\u segment']]<1){
$\u GET[$config['query\u string\u segment']=1;
}
$limit=$config['每页'];
$offset=$limit*($this->input->get($config['query\u string\u segment'])-1);
$this->pagination->initialize($config);
$data=$this->get_data();
$data['expression']=$expression;
$data['posts']=$this->posts\u model->search($expression、$limit、$offset);
$data['offset']=$offset;
$this->load->view('dashboard/partials/header',$data);
$this->load->view('dashboard/posts');
$this->load->view('dashboard/partials/footer');
}
}
你能详细说明一下“奇怪的是,搜索结果不是”@TimBrownlaw例如,当我进行搜索时,返回11个结果,这些结果应该显示在两页上,分页显示所有页面而不是两页。显示所有页面而不是两页
-你的意思是显示所有帖子吗?不是把它们分成两页吗?@Don't我在问题中添加了一个问题的说明。好吧,我想你的意思是显示太多的页面,而不是真正存在的两页?我认为我们实际上需要查看的视图代码部分是仪表板/部分/分页
,而不是主要的内容视图代码。还有你正在访问的URL,我是指分页参数等。你是说我应该做$data['posts']=$this->posts\u model->search($expression)
`现在我发送了一个修改请求,$config['total\u rows']=$this->Posts\u model->search\u count($expression)代码>将其添加到答案中,以便我可以验证它(如果它通过了测试)。是的,你说的很有道理。
public function get_posts($limit, $offset) {
$this->db->select('posts.*,categories.name as post_category');
$this->db->order_by('posts.id', 'DESC');
$this->db->join('categories', 'posts.cat_id = categories.id', 'inner');
$query = $this->db->get('posts', $limit, $offset);
return $query->result();
}
<div class="card-body bg-white p-0">
<div class="table-responsive">
<table class="table table-striped table-sm mb-0">
<thead>
<tr>
<th class="text-right">#</th>
<th class="w-50">Title</th>
<th>Publication date</th>
<th class="text-right pr-2">Actions</th>
</tr>
</thead>
<tbody>
<?php foreach ($posts as $index => $post): ?>
<tr data-slug="<?php echo $post->slug; ?>">
<td class="text-right"><?php $count = $index + 1; echo $count + $offset; ?></td>
<td><?php echo $post->title; ?></td>
<td><?php echo nice_date($post->created_at, 'D, M d, Y'); ?></td>
<td class="text-right">
<div class="btn-group btn-group-sm" role="group">
<a href="<?php echo base_url('posts/post/') . $post->slug; ?>" class="btn btn-success"><i class="fa fa-eye"></i> View</a>
<?php if(($this->session->userdata('is_logged_in') && $this->session->userdata('user_id') == $post->author_id) || $this->session->userdata('user_is_admin')) : ?>
<a href="<?php echo base_url('dashboard/posts/edit/') . $post->slug; ?>" class="btn btn-success"><i class="fa fa-pencil-square-o"></i> Edit</a>
<a href="#" data-slug="<?php echo $post->slug ?>" class="delete-post ajax-btn btn btn-success"><i class="fa fa-trash"></i> Delete</a>
<?php else: ?>
<a href="#" class="btn btn-success disabled"><i class="fa fa-pencil-square-o"></i> Edit</a>
<a href="#" class="btn btn-success disabled"><i class="fa fa-trash"></i> Delete</a>
<?php endif; ?>
</div>
</td>
</tr>
<?php endforeach ?>
</tbody>
</table>
</div>
<div class="card-footer bg-white py-1">
<?php $this->load->view("dashboard/partials/pagination");?>
</div>
</div>
public function search() {
if (!$this->session->userdata('is_logged_in')) {
redirect('login');
}
// Force validation since the form's method is GET
$this->form_validation->set_data($this->input->get());
$this->form_validation->set_rules('search', 'Search term', 'required|trim|min_length[3]',array('min_length' => 'The Search term must be at least 3 characters long.'));
$this->form_validation->set_error_delimiters('<p class = "error search-error">', '</p>
');
// If search fails
if ($this->form_validation->run() === FALSE) {
return $this->index();
} else {
$expression = $this->input->get('search');
if (!$this->session->userdata('is_logged_in')) {
redirect('login');
}
//load and configure pagination
$this->load->library('pagination');
$config['base_url'] = base_url("/dashboard/posts");
$config['query_string_segment'] = 'page';
// Only one line changed below
$config['total_rows'] = $this->Posts_model->search_count($expression);
$config['per_page'] = 10;
if (!isset($_GET[$config['query_string_segment']]) || $_GET[$config['query_string_segment']] < 1) {
$_GET[$config['query_string_segment']] = 1;
}
$limit = $config['per_page'];
$offset = $limit * ($this->input->get($config['query_string_segment']) - 1);
$this->pagination->initialize($config);
$data = $this->get_data();
$data['expression'] = $expression;
$data['posts'] = $this->Posts_model->search($expression, $limit, $offset);
$data['offset'] = $offset;
$this->load->view('dashboard/partials/header', $data);
$this->load->view('dashboard/posts');
$this->load->view('dashboard/partials/footer');
}
}