我在CODEIGNITER中完成了这个CRUD操作。但是，当我尝试运行该程序时，我得到一个空白页面。而且我无法知道错误是什么。任何帮助，将不胜感激。我附上了以下代码。
Stud_controller.php `
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Stud_controller extends CI_Controller {
function __construct(){
parent:: __construct();
$this->load->helper('url');
$this->load->database();
}
public function index()
{
$query = $this->db->get('stud');
$data['records'] = $query->result();
$this->load->helper('url');
$this->load->view('Stud_view', $data);
}
public function add_student_view(){
$this->load->helper('form');
$this->load->view('Stud_add');
}
public function add_student(){
$this->load->model('Stud_Model');
$data = array(
'Roll_No' => $this->input->post('Roll_No'),
'Name' => $this->input->post('Name')
);
$this->Stud_Model->insert($data);
$query = $this->db->get("stud");
$data['records'] = $query->result();
$this->load->view('Stud_view',$data);
}
public function update_student(){
$this->load->model('Stud_Model');
$data = array(
'Roll_No' => $this->input->post('Roll_No'),
'Name' => $this->input->post('Name')
);
$old_Roll_No = $this->input->post('old_Roll_No');
$this->Stud_Model->update($data,$old_Roll_No);
$query = $this->db->get("stud");
$data['records'] = $query->result();
$this->load->view('Stud_view',$data);
}
public function delete_student(){
$this->load->model('Stud_Model');
$Roll_No = $this->uri->segment('3');
$this->Stud_Model->delete($Roll_No);
$query = $this->db->get("stud");
$data['records'] = $query->result();
$this->load-view('Stud_view',$data);
}
}
?>`
Stud_Model.php
<?php
Class Stud_Model extends CI_Model {
function __construct(){
parent:: __construct();
}
public function insert($data) {
if($this->db->insert("stud", $data)){
return true;
}
}
public function delete($Roll_No){
if($this->db->delete("stud", "Roll_No = " .$Roll_No)){
return true;
}
}
public function update($data,$old_Roll_No){
$this->db->set($data);
$this->db->where("Roll_No", $old_Roll_No);
$this->db->update("stud", $data);
}
}
?>
Stud_view.php
<html>
<head>
<title>Student</title>
</head>
<body>
<a href = '<?php echo base_url(); ?>
index.php/stud/add_view">Add</a>
<table border = "1">
<?php
$i = 1;
echo "<tr>";
echo "<td>Sr#</td>";
echo "<td>Roll No.</td>";
echo "<td>Name</td>";
echo "<td>Edit</td>";
echo "<td>Delete</td>";
echo "</tr>";
foreach($records as $r){
echo "<tr>";
echo "<td>".$i++."</td>";
echo "<td>".$r->Roll_No."</td>";
echo "<td>".$r->Name."</td>";
echo "<td><a href = '".base_url()."index.php/stud/edit/"
.$r->Roll_No."'>Edit</a></td>";
echo "<td><a href = '".base_url()."index.php/stud/delete/"
.$r->Roll_No."'>Delete</a></td>";
echo "<tr>";
}
?>
</table>
</body>
</html>
答案 0 :(得分：0)
答案 1 :(得分：0)
Naga，你的base_url应该看起来像这个例子
base_url("blog/post/123");
另外，将index.php从URL中删除。 “.base_url（）。”index.php / stud / edit /“”
删除句点和index.php。你永远不会在你的网址中使用.php
答案 2 :(得分：0)
这是我的crud master使用codeigniter
public function get_data_all($tabel)
{
$this->db->select('*');
$this->db->from($tabel);
$query = $this->db->get();
return $query->result_object();
}
public function get_data_all2($tabel,$where,$value)
{
$this->db->select('*');
$this->db->from($tabel);
$this->db->where($where, $value);
$query = $this->db->get();
return $query->result_object();
}
public function data_proses_komputer($tabel)
{
$this->db->select('*');
$this->db->from($tabel);
$this->db->join('artikel', 'forward_changing.id_artikel = artikel.id_artikel');
$this->db->join('user', 'forward_changing.username = user.username');
$query = $this->db->get();
return $query->result_object();
}
public function get_data_where($tabel,$where,$id)
{
$this->db->select('*');
$this->db->from($tabel);
$this->db->where($where, $id);
$query = $this->db->get();
return $query->result_object();
}
public function insert_data($tabel,$data)
{
$this->db->insert($tabel,$data);
return TRUE;
}
public function delete_data($tabel,$where)
{
$res = $this->db->delete($tabel,$where);
return $res;
}
public function do_update_data($tabel,$data_insert,$where)
{
$res = $this->db->update($tabel, $data_insert, $where);
return $res;
}
public function tampil($table){
return $this->db->get_where($table);
}
答案 3 :(得分：0)
创建一个视图文件add.php
<script type="text/javascript" src="<?=$this->config->item('js_path')?>jquery-3.2.1.min.js"></script>
<script type="text/javascript" src="<?=$this->config->item('js_path')?>jquery-validation/js/jquery.validate.min.js"></script>
<?php $formAction = !empty($editRecord) ? 'update_record' : 'insert_record';
?>
<!DOCTYPE html>
<html>
<head>
<title>user</title>
</head>
<body>
<form id="signup_form" method="post" action="<?= base_url('admin/user_management_control/'.$formAction) ?>" >
<table border="1" align="center" width="450">
<tr>
<td>First Name</td>
<td>
<input type="text" name="first_name" id="first_name" value="<?php echo !empty($editRecord[0]->first_name) ? $editRecord[0]->first_name :'' ?>">
</td>
</tr>
<tr>
<td>Last Name</td>
<td>
<input type="text" name="last_name" id="last_name" value="<?php echo !empty($editRecord[0]->last_name) ? $editRecord[0]->last_name :'' ?>">
</td>
</tr>
<tr>
<td>Email</td>
<td>
<input type="email" name="email" id="email" value="<?php echo !empty($editRecord[0]->email) ? $editRecord[0]->email :'' ?>">
</td>
</tr>
<tr>
<td>Mobile Number</td>
<td>
<input type="text" name="mobile_no" id="mobile_no" onkeypress="return isNumber(event)" data-range='[1,9999999999]' maxlength="15" value="<?php echo !empty($editRecord[0]->mobile_no) ? $editRecord[0]->mobile_no :'' ?>">
</td>
</tr>
<tr>
<tr>
<td>Gender</td>
<td>
<select name="gender" id="gender">
<option value="">Select Gender</option>
<option value="male" <?php if(!empty($editRecord[0]->gender) && $editRecord[0]->gender == 'male') echo "selected" ;?>>male</option>
<option value="female" <?php if(!empty($editRecord[0]->gender) && $editRecord[0]->gender == 'female') echo "selected"; ?>>Female</option>
</select>
</td>
</tr>
<td>Address</td>
<td>
<textarea name="address" id="address"><?php echo !empty($editRecord[0]->address) ? $editRecord[0]->address :'' ?></textarea>
</td>
</tr>
<?php if(empty($editRecord[0]->id))
{
?>
<tr>
<td>Password</td>
<td>
<input type="password" name="password" id="password" value="">
</td>
</tr>
<tr>
<td>Confirm Password</td>
<td>
<input type="password" name="cpassword" id="cpassword" value="">
</td>
</tr>
<?php
}
?>
<tr collspan="2">
<td align="center">
<input type="submit" name="submit" value="submit">
</td>
</tr>
</table>
<input type="hidden" name="id" id="id" value="<?= !empty($editRecord[0]->id)?$editRecord[0]->id:'';?>" >
</form>
</body>
</html>
<script type="text/javascript">
$("#signup_form").validate({
onkeyup: false,
rules:{
first_name: {
required: true
},
last_name: {
required: true
},
email:{
required: true,
email: true
},
mobile_no:{
required:true,
minlength:10,
maxlength:15
},
password:{
required:true,
minlength:6,
normalizer: function(value){
return $.trim(value);
},
password_check: true
},
cpassword:{
required:true,
normalizer: function(value){
return $.trim(value);
},
equalTo: "#password",
},
},
messages:{
first_name:{
required: "First Name cannot be blank.",
},
last_name:{
required: "Last Name cannot be blank.",
},
email:{
required: "Email cannot be blank.",
},
mobile_no:{
required: "Mobile number cannot be blank",
minlength: "Please enter minimum 10 digit number.",
maxlength: "Contact Number not allow more then 15 digit."
},
password:{
required: "Password cannot be blank.",
minlength: "Password should be at least 6 character long."
},
cpassword:{
required: "Confirm Password cannot be blank.",
equalTo: "Password and Confirm Password must be same."
},
},
});
jQuery.validator.addMethod('password_check', function(value,element)
{
var pattern = new RegExp(/^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%^&*()_+\-=\[\]{};':"\\|,.<>\/?]).{6,}$/);
//
if(pattern.test(value))
{
return true;
}else{
return false;
}
},"Password should be 6 character long, one special character, one uppercase, one lowercase letter and one digit.");
function isNumber(evt)
{
evt = (evt) ? evt : window.event;
var charCode = (evt.which) ? evt.which : evt.keyCode;
if (charCode > 32 && (charCode < 48 || charCode > 57)) {
return false;
}
return true;
}
</script>
我使用jQuery验证来验证字段。
创建一个文件以显示详细信息list.php
<html>
<body>
<table border="2" align="center">
<tr>
<td>#</td>
<td>Name</td>
<td>Email</td>
<td>Mobile No.</td>
<td>Gender</td>
<td>Address</td>
<td>Action</td>
</tr>
<?php
foreach($user_details as $user)
{
?>
<tr>
<td><?php echo $user->id;?></td>
<td><?php echo ucwords($user->name);?></td>
<td><?php echo $user->email;?></td>
<td><?php echo $user->mobile_no;?></td>
<td><?php echo ucfirst($user->gender);?></td>
<td><?php echo $user->address;?></td>
<td><a href="<?php echo base_url('admin/user_management_control/edit_record/')?><?php echo $user->id?>">Edit</a>
<a href="<?php echo base_url('admin/user_management_control/delete/')?><?php echo $user->id?>">Delete</a>
</td>
</tr>
<?php
}
?>
<tr>
<td><a href="<?php echo base_url('admin/user_management_control/add')?>">Add new</a></td>
</tr>
</table>
</body>
</html>
现在创建模型Common_model.php
<?php
Class Common_model extends CI_Model
{
public function __construct()
{
parent::__construct();
}
function encrypt_script($string)
{
$cryptKey = 'qJB0rGtIn5UB1xG03efyCp';
$qEncoded = base64_encode( mcrypt_encrypt( MCRYPT_RIJNDAEL_256, md5( $cryptKey ), $string, MCRYPT_MODE_CBC, md5( md5( $cryptKey ) ) ) );
return( $qEncoded );
}
function decrypt_script($string)
{
$cryptKey = 'qJB0rGtIn5UB1xG03efyCp';
$qDecoded = rtrim( mcrypt_decrypt( MCRYPT_RIJNDAEL_256, md5( $cryptKey ), base64_decode( $q ), MCRYPT_MODE_CBC, md5( md5( $cryptKey ) ) ), "\0");
return( $qDecoded );
}
function insert($table,$data)
{
$this->db->insert($table,$data);
return $this->db->insert_id();
}
function get_users()
{
$this->db->select('id, CONCAT(`first_name`," ", `last_name`) AS `name` ,email,mobile_no,gender,address');
$result = $this->db->get('user_master');
return $result->result();
}
public function get_user_detail($id){
$this->db->select('*');
$this->db->where('id',$id);
$result = $this->db->get('user_master');
return $result->result();
}
public function update($table,$data,$where)
{
if(!empty($where))
$this->db->where($where);
$this->db->update($table, $data);
}
public function delete($table, $where)
{
$this->db->where($where);
$this->db->delete($table);
}
}
?>
现在创建控制器user_management_control.php
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
Class user_management_control extends CI_Controller
{
public function __construct()
{
parent::__construct();
$this->load->model('Common_model');
}
public function index()
{
$data['user_details'] = $this->Common_model->get_users();
$this->load->view('admin/user_management/list',$data);
}
public function add()
{
$this->load->view('admin/user_management/add');
}
public function insert_record()
{
$this->load->library('form_validation');
if($this->input->server('REQUEST_METHOD') == 'POST')
{
$this->form_validation->set_rules('first_name','First Name','trim|required');
$this->form_validation->set_rules('last_name','Last Name','trim|required');
$this->form_validation->set_rules('email','Email','trim|required|valid_email');
$this->form_validation->set_rules('mobile_no','Mobile Number','trim|required');
$this->form_validation->set_rules('password','Password','trim|required|matches[cpassword]');
$this->form_validation->set_rules('cpassword','Confirm Password','trim|required');
if($this->form_validation->run() == FALSE)
{
$this->load->view('admin/user_management/add');
}
else
{
$post_array = $this->input->post();
$data = array(
'first_name' => $post_array['first_name'],
'last_name' => $post_array['last_name'],
'email' => strtolower(trim($post_array['email'])),
'mobile_no' => $post_array['mobile_no'],
'gender' => $post_array['gender'],
'address' => $post_array['address'],
'password' => $this->Common_model->encrypt_script($post_array['password']),
'status' => 0,
'inserted_date' => date('Y-m-d H:i:s')
);
$this->Common_model->insert('user_master',$data);
redirect('admin/user_management_control/');
}
}
}
public function edit_record()
{
$id = $this->uri->segment(4);
$result = $this->Common_model->get_user_detail($id);
if(empty($result))
{
redirect('admin/user_management_control/');
}
$data['editRecord'] = $result;
$this->load->view('admin/user_management/add',$data);
}
public function update_record()
{
$this->load->library('form_validation');
if($this->input->server('REQUEST_METHOD') == 'POST')
{
$this->form_validation->set_rules('first_name','First Name','trim|required');
$this->form_validation->set_rules('last_name','Last Name','trim|required');
$this->form_validation->set_rules('email','Email','trim|required|valid_email');
$this->form_validation->set_rules('mobile_no','Mobile Number','trim|required');
if($this->form_validation->run() == FALSE)
{
$this->load->view('admin/user_management/add');
}
else
{
$post_array = $this->input->post();
$cdata['id'] = $post_array['id'];
$data = array(
'first_name' => $post_array['first_name'],
'last_name' => $post_array['last_name'],
'email' => strtolower(trim($post_array['email'])),
'mobile_no' => $post_array['mobile_no'],
'gender' => $post_array['gender'],
'address' => $post_array['address'],
'status' => 0,
'modified_date' => date('Y-m-d H:i:s')
);
$this->Common_model->update('user_master',$data,array('id' =>$cdata['id']));
redirect('admin/user_management_control/');
}
}
}
public function delete()
{
$id = $this->uri->segment(4);
$this->Common_model->delete('user_master',array('id'=>$id));
redirect('admin/user_management_control/');
}
}
?>