Codeignger Database Update Problem

Question

Ich möchte meine Daten aktualisieren, aber die Spalte Mark_Obtained wird nicht aktualisiert. Ich weiß nicht warum, habe ich etwas falsch in meinem Code?

Dies ist in meinem Controller-Code:

function marks($exam_id = '', $class_id = '', $subject_exam_id = '') 
    { 
     if ($this->session->userdata('admin_login') != 1) 
      redirect(base_url(), 'refresh'); 

     if ($this->input->post('operation') == 'selection') { 
      $page_data['exam_id'] = $this->input->post('exam_id'); 
      $page_data['class_id'] = $this->input->post('class_id'); 
      $page_data['subject_exam_id'] = $this->input->post('subject_exam_id'); 

      if ($page_data['exam_id'] > 0 && $page_data['class_id'] > 0 && $page_data['subject_exam_id'] > 0) { 
       redirect(base_url() . 'index.php?admin/marks/' . $page_data['exam_id'] . '/' . $page_data['class_id'] . '/' . $page_data['subject_exam_id'], 'refresh'); 
      } else { 
       $this->session->set_flashdata('mark_message', 'Choose exam, class and subject'); 
       redirect(base_url() . 'index.php?admin/marks/', 'refresh'); 
      } 
     } 
     if ($this->input->post('operation') == 'update') { 
      $students = $this->db->get_where('enroll' , array('class_id' => $class_id , 'year' => $running_year))->result_array(); 
      foreach($students as $row) { 
       $data['mark_obtained'] = $this->input->post('mark_obtained_' . $row['student_id']); 
       $data['comment']  = $this->input->post('comment_' . $row['student_id']); 

       $this->db->where('mark_id', $this->input->post('mark_id_' . $row['student_id'])); 
       $this->db->update('mark', array('mark_obtained' => $data['mark_obtained'] , 'comment' => $data['comment'])); 
      } 
      $this->session->set_flashdata('flash_message' , get_phrase('data_updated')); 
      redirect(base_url() . 'index.php?admin/marks/' . $this->input->post('exam_id') . '/' . $this->input->post('class_id') . '/' . $this->input->post('subject_exam_id'), 'refresh'); 
     } 
     $page_data['exam_id'] = $exam_id; 
     $page_data['class_id'] = $class_id; 
     $page_data['subject_exam_id'] = $subject_exam_id; 

     $page_data['page_info'] = 'Exam marks'; 

     $page_data['page_name'] = 'marks'; 
     $page_data['page_title'] = get_phrase('manage_exam_marks'); 
     $this->load->view('backend/index', $page_data); 
    } 

und das ist meine Ansicht:

<?php if($exam_id >0 && $class_id >0 && $subject_exam_id >0):?> 
       <?php 
         ////CREATE THE MARK ENTRY ONLY IF NOT EXISTS//// 
         $students = $this->db->get_where('enroll' , array(
          'year' => $running_year , 'class_id' => $class_id 
         ))->result_array(); 
         foreach($students as $row): 
          $verify_data = array( 'exam_id'   => $exam_id , 
                 'class_id'   => $class_id , 
                 'subject_exam_id' => $subject_exam_id , 
                 'year'    => $running_year, 
                 'student_id'  => $row['student_id']); 
          $query = $this->db->get_where('mark' , $verify_data); 

          if($query->num_rows() < 1) 
           $this->db->insert('mark' , $verify_data); 
         endforeach; 


<input type="number" value="<?php echo $row2['mark_obtained'];?>" name="mark_obtained" class="form-control" > 

Bitte helfen Sie mir, das Problem zu lösen.

Answer 1

if ($this->input->post('operation') == 'update') { 
    $data['mark_obtained'] = $this->input->post('mark_obtained'); 
    $data['comment']  = $this->input->post('comment'); 

    $this->db->where('mark_id', $this->input->post('mark_id')); 
    $this->db->update('mark_obtained', $data); // ***MAYBE THIS WAS THE ISSUE**** 
    $this->session->set_flashdata('flash_message' , get_phrase('data_updated')); 
    redirect(base_url() . 'index.php?admin/marks/' . $this->input->post('exam_id') . '/' . $this->input->post('class_id') . '/' . $this->input->post('subject_id'), 'refresh'); 
} 

Ich wies auf eine Zeile, die ich korrigiert habe, die möglicherweise das Problem gewesen sein. Sie sagen, die Spalte mark_obtained wurde nicht aktualisiert, aber Sie haben eine Spalte namens mark in Ihrem Code aktualisiert.