submit multiple inputs within a forloop in codeigniter - codeigniter

Question

My code is to fetch questions of users saved in the database by a foreach loop and let the admin answer each question and save the answer of each question after checking of validation rules in the database , Here we go :
Model is :
public function get_questions(){
$this->db->select('id,user_name, question, date');
$this->db->order_by("id", "desc");
$query=$this->db->get('t_questions');
return $query->result();
}
My view is:
foreach ($questions as $id => $row) :
?>
<?php
echo "<h5>".$row->question;
echo "<br>";
echo "from : ".$row->user_name."</h5>";
echo date('Y-m-d H:i');
echo "<br>";
$q_no='save'.$row->id;
$ans_no='answer'.$row->id;
echo "<h4> Answer:</h4>";
echo form_open('control_panel');
?>
<textarea name='<?php echo 'answer'.$row->id; ?>' value="set_value('<?php echo 'answer'.$row->id; ?>')" class='form-control' rows='3'> </textarea>
<input type='hidden' name='<?php echo $q_no ; ?>' value='<?php echo $q_no; ?>' />
<input type='hidden' name='<?php echo $ans_no ; ?>' value='<?php echo $ans_no ; ?>' />
<?php
echo form_error($ans_no);
echo "
<div class='form-group'>
<div >
<label class='checkbox-inline'>
<input type='checkbox' name='add_faq' value='yes' />
Adding to FAQ page .
</label>
</div>
</div>
<p>";
?>
<input type='submit' name='<?php echo 'save'.$row->id; ?>' value='<?php echo 'save'.$row->id; ?>' class='btn btn-success btn-md'/>
<?php
echo 'answer'.$row->id;
?>
<hr>
<?php endforeach; ?>
and my controller is :
$this->load->model('control_panel');
$data['questions']=$this->control_panel->get_questions();
$data['no_of_questions']=count($data['questions']);
if($this->input->post($q_no))
{
$this->form_validation->set_rules($ans_no,'Answer','required|xss_clean');
if($this->form_validation->run())
{
/* code to insert answer in database */
}
}
of course it did not work with me :
i get errors :
Severity: Notice
Message: Undefined variable: q_no
i do not know how to fix it
I am using codeigniter as i said in the headline.

Answer 1

In your controller on your post() you have a variable called q_no you need to set variable that's why not picking it up.
I do not think name="" in input can have php code I think it has to be text only.
Also would be best to add for each in controller and the call it into view.
Please make sure on controller you do some thing like
$q_no = $this->input->post('q_no');
$ans_no = $this->input->post('ans_no');
Below is how I most likely would do lay out
For each Example On Controller
$this->load->model('control_panel');
$data['no_of_questions'] = $this->db->count_all('my_table');
$data['questions'] = array();
$results = $this->control_panel->get_questions();
foreach ($results as $result) {
$data['questions'][] = array(
'question_id' => $result['question_id'],
'q_no' => $result['q_no'],
'ans_no' => $result['ans_no']
);
}
//Then validation
$this->load->library('form_validation');
$this->form_validation->set_rules('q_no', '', 'required');
$this->form_validation->set_rules('ans_no', '', 'required');
if ($this->input->post('q_no')) { // Would Not Do It This Way
if ($this->form_validation->run() == TRUE) {
// Run Database Insert / Update
// Redirect or load same view
} else {
// Run False
$this->load->view('your view', $data);
}
}
Example On View
<?php foreach ($questions as $question) {?>
<input type="text" name="id" value="<?php echo $question['question_id'];?>"/>
<input type="text" name="q_no" value"<?php echo $question['q_no'];?>"/>
<input type="text"name="a_no" value="<?php echo $question['a_no'];?>"/>
<?php }?>
Model
public function get_questions(){
$this->db->select('id,user_name, question, date');
$this->db->order_by("id", "desc");
$query=$this->db->get('t_questions');
return $query->result_array();
}