在下面的代码中，有 2 个文本框和 2 个下拉列表 这是当我从课程主题表中选择课程代码并在主题代码下拉列表中发布值并更新到 mysql 时的更新，但是当我从下拉列表中选择课程代码时，表是重叠的。我的想法是在主题代码中填充值并更新到 mysql 中。
控制器：Student_site
function studentupdate()
{
$data = array();
$exam_name = $this->input->post('exam_name');
$course_name = $this->input->post('course_name');
if($query = $this->student_model->get_exam_data())
{
$data['exam_data'] = $query;
}
if($query = $this->student_model->get_records($exam_name))
{
$data['records'] = $query;
}
if($query = $this->student_model->get_course_code_records($exam_name))
{
$data['course_records'] = $query;
}
if($query = $this->student_model->get_all_coursesubject_records())
{
$data['all_coursesubject_records'] = $query;
}
$this->load->view('student_detail_view', $data);
}
function manage_student()
{
$data['title']="Manage Student";
//query model to get data results for form
$data=array();
if($query=$this->student_model->get_student_records()){
$data['records']=$query;
}
$editstudent = $this->input->post('editstudent');
if( $this->input->post('editstudent') != false ){
foreach($editstudent as $row_id)
{
$this->form_validation->set_rules("register_number_" . $row_id, "register_number", "required|min_length[2]");
}
}
if ($this->form_validation->run() == FALSE){
$data["message"]="";
//$this->load->view("master_data/view_master_data_header",$data);
//$this->load->view("master_data/view_master_data_nav");
$this->load->view("student_detail_view",$data);
//$this->load->view("master_data/view_master_data_footer");
} else {
// single update - working
if( $this->input->post('editstudent') != false )
{
foreach ($editstudent as $row_id)
{
$data = array(
'register_number' => $this->input->post('register_number_'.$row_id),
'name' => $this->input->post('name_'.$row_id),
'course_code' => $this->input->post('course_code_id'.$row_id),
'subject_code' => $this->input->post('subject_code_id'.$row_id),
);
$this->student_model->update_student_records( $row_id, $data );
redirect('student_site','refresh');
}
$this->session->set_flashdata('dbaction', 'Selected Records have been updated successfully');
}
}
}
型号：student_model
function get_records($exam_name)
{
$this->db->where('exam_name',$exam_name);
$query = $this->db->get('student_table');
return $query->result();
}
function get_course_code_records($course_name)
{
$query = $this->db->get('coursesubject');
return $query->result();
}
function get_all_coursesubject_records()
{
//echo "exam_name inside get_subject_records".$exam_name;
$this->db->select('course_code');
$this->db->select('subject_code');
$query = $this->db->get('coursesubject');
return $query->result();
}
function get_subject_records($exam_name,$course_name)
{
//echo "exam_name inside get_subject_records".$exam_name;
//$this->db->select('course_code,subject_code');
//$this->db->where('exam_name',$exam_name);
$this->db->where('course_code',$course_name);
$query = $this->db->get('coursesubject');
return $query->result();
}
视图：subject_detail_view：
<?php $data = array();
if(isset($records)){
foreach ($course_records as $row)
{
$data[$row->course_code] = $row->course_code;
}
$subject_data = array();
foreach ($all_coursesubject_records as $row)
{
$subject_data[$row->subject_code] = $row->subject_code;
}
}
?>
<div id="Processy ">
<table class="display table table-bordered table-striped" id='studenttable'>
<thead>
<tr font style='font-size:13px'>
<th> </th>
<th> </th>
<th>Register Number</th>
<th>Name </th>
<th>Course Code</th>
<th>Subject Code</th>
</tr></thead>
<?php if(isset($records)) : foreach($records as $row) : ?>
<tr >
<td>
<?php echo anchor('student_site/delete/'.$row->id, 'Delete',array('onClick'=>"return confirm('Are you sure want to delete..?')")); ?>
</td>
<td id="rowUpdate">
<input type=checkbox name="editstudent[]" id="editstudent[]" value="<?php echo $row->id ?>">
</td>
<td ><input class="inputmedium span2" type="text" name="register_number_<?php echo $row->id ?>" id="register_number_<?php echo $row->id ?>" value="<?php echo $row->register_number; ?>" ></td>
<td ><input class="inputmedium span2" type="text" name="name_<?php echo $row->id ?>" id="name_<?php echo $row->id ?>" value="<?php echo $row->name; ?>" ></td>
<td >
<?php
$js = 'class="dropdown_class" id="course_code_id'.$row->id.'" onChange=" get_subjectdetails112('.$row->id.')" ';
$js_name = 'course_code_id'.$row->id;
echo form_dropdown($js_name, $data, $row->course_code, $js);
echo"hai";
var_dump ($row->course_code);
?>
<input type="hidden" name="index" id="index" value="<?php echo $row->id; ?>"/>
</td>
<td>
<div id="subject_code_id<?php echo $row->id; ?>" ></div>
<input type="hidden" name="subject_code_id" id="subject_code_id" value="subject_code_id<?php echo $row->id; ?>"/>
</td></tr>
视图：subject_update
<script type="text/javascript" charset="utf-8">
function get_subjectdetails112(index) {
alert ("enter firstMAIN");
//var index = jQuery('#index').val();
//alert("index"+index);
var course_name = jQuery('#course_code_id'+index).val();
alert("course_name"+course_name);
//var exam_name = jQuery('#course_name_id>option:selected').text();
var exam_name = jQuery('#exam_name_id').val();
var subject_code = jQuery('#subject_code_id'+index).val();
alert(subject_code);
//var partsArray = exam_name.split('.');
//alert("ssubject_code"+ssubject_code);
//alert("course_name"+course_name);
//alert("exam_name"+exam_name);
jQuery.ajax({
data: 'exam_name='+exam_name+'&course_name=' + course_name,
type: 'POST',
url: 'student_site/studentupdate ',
success: function(data){
//alert("inside change");
console.log(data);
//alert ("data"+data);
//for(var j = course_name; j < ssubject_code; j++)
//{
jQuery('#subject_code_id'+index).empty().append(data);
//}
}
});
}
</script>