我正在构建CI应用程序。这里我显示了员工的登录和注销。现在我有一个下拉列表，我从数据库和下面获取所有用户，我有一个表格，显示所有用户及其相关的登录注销。现在我想做一些事情，比如当我从下拉菜单中选择一个用户时，我只能看到他的信息，而不是所有其他信息。
控制器：
public function index()
{
$this->data['attendances'] = $this->attendance_m->join_data();
$this->data['attendance_dropdown'] = $this->attendance_m->get_emp_list();
$this->data['subview'] = 'admin/attendance/index';
$this->load->view('admin/_layout_main', $this->data);
}
模特：
function get_emp_list() {
$q = $this->db->select('name')
->from('users')
->get();
return $q->result_array();
}
以下是我获取用户的代码：
<script type="text/javascript" src="<?php echo site_url('js/bootstrap.min.js');?>"></script>
<h2>Upload CSV To Import Users</h2>
<!-- in the action you need to place /controller/function in our case @Attendance, @upload -->
<form method="post" action="<?php echo site_url('admin/attendance/upload');?>" enctype="multipart/form-data">
<input type="file" name="file" id="file">
<br>
<input type="submit" name="submit" value="UPLOAD" class="btn btn-primary">
</form>
<div class="row">
<div class="col-lg-12">
<div class="row">
<div class="col-md-3">
<div class="form-group">
<h1><label for="sel1">Select list:</label></h1>
<select name="attendance-list" id="attendance-list" class="form-control" >
<?php foreach($attendance_dropdown as $value) { ?>
<option value="<?php echo $value['name'];?>"><?php echo $value['name']; ?> </option>
<?php } ?>
</select>
</div>
<h1 class="page-header">Attendance Details</h1>
</div>
<!-- /.col-lg-12 -->
</div>
<!-- /.row -->
<div class="row">
<div class="col-lg-12">
<div class="panel panel-primary">
<div class="panel-heading">
All Calls Records
</div>
<!-- /.panel-heading -->
<div class="panel-body">
<div class="dataTable_wrapper">
<table class="table table-striped table-bordered table-hover" id="dataTables-example">
<thead>
<tr>
<th>Emp_ID</th>
<th>Name</th>
<th>Date</th>
<th>Entry</th>
</tr>
</thead>
<tbody>
<?php if(count($attendances)): foreach($attendances as $attendance): ?>
<tr class="odd gradeX">
<td><?php echo trim($attendance->emp_id,'">'); ?></td>
<td><?php echo trim($attendance->name.$attendance->last_name,'">'); ?></td>
<td><?php echo trim($attendance->date_data,'">'); ?></td>
<td><?php trim($attendance->entry,'">'); ?> <?php if($attendance->entry >100)
{
echo "Logged In";
}
else
{
echo"Logged Out";
}?>
</tr>
<?php endforeach; ?>
<?php else: ?>
<tr>
<td colspan="3">We could not find any Data.</td>
</tr>
<?php endif; ?>
</tbody>
</table>
</div>
<!-- /.table-responsive -->
</div>
<!-- /.panel-body -->
</div>
<!-- /.panel -->
</div>
<!-- /.col-lg-12 -->
</div>
<!-- /.row -->
<!-- /.row -->
<!-- jQuery -->
<script src="../bower_components/jquery/dist/jquery.min.js"></script>
<!-- Bootstrap Core JavaScript -->
<script src="../bower_components/bootstrap/dist/js/bootstrap.min.js"></script>
<!-- Metis Menu Plugin JavaScript -->
<script src="../bower_components/metisMenu/dist/metisMenu.min.js"></script>
<!-- DataTables JavaScript -->
<script src="../bower_components/datatables/media/js/jquery.dataTables.min.js"></script>
<script src="../bower_components/datatables-plugins/integration/bootstrap/3/dataTables.bootstrap.min.js"></script>
<!-- Custom Theme JavaScript -->
<script src="../dist/js/sb-admin-2.js"></script>
<!-- Page-Level Demo Scripts - Tables - Use for reference -->
<script>
$(document).ready(function() {
$('#dataTables-example').DataTable({
responsive: true
});
});
</script>
答案 0 :(得分：1)
以下是如何使用帖子在codeigniter中获取数据：
控制器
function catchPost(){
$this->form_validation->set_rules("nametage", "something", "required");
if($this->form_validation->run() == TRUE){//Formvalidation worked
$this->load->model("model_name");
$data['userInfo'] = $this->model_name->function();
$this->load->view("view", $data);
}else{
redirect("prevUrl", "refresh");
}
}
型号：
function getData(){//No parameters because we work directly with the post. You should filter the post before you actually use it.
$query = $this->db-select("*")
->from("users")
->where("username", $this->input->post("username"))
->get()
->result_array();
return $query
}
这是抓取特定数据的一般方法。
答案 1 :(得分：1)
如果值不为空，则必须为给定的下拉列表绑定更改事件，调用ajax并获取该特定用户的信息
在你js：
<script>
site_url="http://localhost/ci_root/index.php/";
$('#attendance-list').on('change', function () {
var select_emp_name=$(this).val();
if(select_emp_name!=""){
var params={};
params["name"]= select_emp_name;
$.ajax({type: 'POST', url: site_url + 'employee/getUserInfo', data: params,success: function (response) {
//write on response logic/set employee details
var user_data=JSON.parse(response);
}, async: true});
}
})
</script>
public function getUserInfo()
{
$name=$this->input->post("name",true);
$data = $this->attendance_m->get_emp_data($name);
echo json_encode( $data);
exit;
}
：
function get_emp_data($name) {
$q = $this->db->select('*')//required fields
->from('users')
->where('name',$name) // considering name is unique field
->get();
return $q->result_array();
}
建议：更好的做法是为下拉值发送用户ID或唯一字段，而不是像user_id =＆gt; 1，name =＆gt; sanjay这样的名称 我们可以在下拉列表中将user_id设置为值，并将name命名为选项
的标签它看起来像
<?php foreach($attendance_dropdown as $value) { ?>
<option value="<?php echo $value['user_id'];?>"><?php echo $value['name']; ?> </option>
<?php } ?>
根据你的where子句也改变
如果您需要更多支持，请告诉我
这是您的Scipt显示代码
<script>
site_url = "http://127.0.01/project/admin/";
$('#attendance-list').on('change', function() {
var select_emp_id = $(this).val();
if (select_emp_id != "") {
var params = {};
params["id"] = select_emp_id;
$.ajax({type: 'POST', url: site_url + 'attendance/getUserInfo', data: params, success: function(response) {
//write on response logic/set employee details
var user_data = JSON.parse(response);
var row = '<tr class="odd gradeX"><td>' + user_data.emp_id + '</td><td>' + user_data.name + ' ' + user_data.last_name'</td><td>' + user_data.date_data + '</td><td>' + user_data.entry + ' ' + (user_data.entry > 100?"Logged In":"Logged Out") + '</td> </tr>';
$("#dataTables-example tbody").find('tr').remove();
$("#dataTables-example tbody").append(row);
}, async: true});
}
});
</script>