How can I keep variable value if validation fails in codeigniter - php

Question

I want to validate a form to make sure a user entered something in the description field in this situation form validation is correct.
But,
Here , I pass value to function 2 by fetching values from function 1
When function 2 loads first time it fetch data and display the values (OK)
But When function 2 resubmit for validation and submision data these valitable get empoty and it throw the error Message: Undefined variable: query (ERROR)
I don't know how to do this, hehe. I'm just a newbie PHP programmer.
Here's what I have so far:
function 1
public function ask()
{
$this->load->model('MainM');
$this->load->library('form_validation');
$this->form_validation->set_rules('index', 'AL Index', 'trim|required|min_length[7]|max_length[7]');
if($this->form_validation->run() == FALSE) {
$this->load->view('enterindex');
}else{
$query = null; //emptying in case
$index = $this->input->post("index"); //getting from post value
$query = $this->db->get_where('tbl_reg', array('reg_index' => $index));
$count = $query->num_rows(); //counting result from query
if ($count == 1) {
$data['query'] = $this->MainM->getregdata($index);
$result = $this->load->view('submitques',$data);
}else{
$data = array();
$data['error'] = 'error';
$this->load->view('enterindex', $data);
}
}
function 2
public function submitq()
{
$this->load->library('form_validation');
$this->form_validation->set_rules('yourq', 'Question', 'required|min_length[7]');
if($this->form_validation->run() == FALSE) {
$this->load->view('submitques',$data);
} else {
//insert the submitq form data into database
$data = array(
'reg_id' => $this->input->post('reg_id'),
'ques' => $this->input->post('yourq'),
'call' => "yes",
'status' => "New",
'date' => date('Y-m-d H:i:s')
);
if ($this->db->insert('tbl_ques', $data))
{
// success
$this->session->set_flashdata('success_msg', 'Your Submission is success');
redirect('main/submitq');
}
else
{
$this->load->view('submitques', $data);
}
}
}

Answer 1

Actully you have $data variable put in else part so thats why this error appeared you need to define before loop.
public function submitq()
{
$this->load->library('form_validation');
$this->form_validation->set_rules('yourq', 'Question', 'required|min_length[7]');
// define here before check condtions
$data = array(
'reg_id' => $this->input->post('reg_id'),
'ques' => $this->input->post('yourq'),
'call' => "yes",
'status' => "New",
'date' => date('Y-m-d H:i:s')
);
if($this->form_validation->run() == FALSE) {
$this->load->view('submitques',$data);
} else {
//insert the submitq form data into database
if ($this->db->insert('tbl_ques', $data))
{
// success
$this->session->set_flashdata('success_msg', 'Your Submission is success');
redirect('main/submitq');
}
else
{
$this->load->view('submitques', $data);
}
}
}

Answer 2

If you wish to use the posted $data variable on false condition, you could moving it up outside the validation block :
public function submitq()
{
$this->load->library('form_validation');
$this->form_validation->set_rules('yourq', 'Question', 'required|min_length[7]');
$data = array(
'reg_id' => $this->input->post('reg_id'),
'ques' => $this->input->post('yourq'),
'call' => "yes",
'status' => "New",
'date' => date('Y-m-d H:i:s')
);
if($this->form_validation->run() == FALSE) {
$this->load->view('submitques',$data);
} else {
//insert the submitq form data into database
if ($this->db->insert('tbl_ques', $data))
{
// success
$this->session->set_flashdata('success_msg', 'Your Submission is success');
redirect('main/submitq');
}
else
{
$this->load->view('submitques', $data);
}
}
}

Answer 3

Try with This Code:
First Add Form Library to config/autoload.php
$autoload['libraries'] = array('database','form_validation');
html Code
This is view file login.php
<?php echo form_open('action_controller_name', array('class' => '', 'enctype' => 'multipart/form-data', 'role' => 'form', 'name' => 'myform', 'id' => 'myform')); ?>
<div class="form-group">
<label class="control-label" for="mobile">Mobile-No</label>
<input type="text" name="mobile" value="" placeholder="Enter Mobile No" id="mobile" class="form-control" />
<label class="error"><?php echo form_error('mobile'); ?></label>
</div>
<div class="form-group">
<label class="control-label" for="password">Password</label>
<input type="password" name="password" value="" placeholder="Password" id="password" class="form-control" />
<label class="error"><?php echo form_error('mobile'); ?></label>
</div>
<input type="submit" value="Login" class="btn btn-gray" id="submit" />
<a class="forgotten" href="<?php echo base_url('login/forgot_password'); ?>" style="font-size: 13px;">Forgot Password</a>
<?php
echo form_close();
?>
My Action Controller
public function action_controller_name() {
$this->load->helper(array('form')); // Load Form Library
$this->load->library('form_validation'); // Load Form Validaton Library
$this->form_validation->set_rules('mobile', 'mobile', 'required', array('required' => 'Please Enter Mobile Number.'));
$this->form_validation->set_rules('password', 'Password', 'required', array('required' => 'Please Enter passsword.'));
if ($this->form_validation->run() === TRUE) { // Check validation Run
// Your Login code write here
} else {
$this->load->view('login', $this->data);
}
}
Try this code.You can keep variable value if validation fails in codeigniter successfully.