錯誤與笨

Question

我正在使用笨下面的代碼，並獲得錯誤form_validation，因爲form_validation不是running.Please幫我理清控制器的problem.The代碼：

public function event_desc() 
{  
    $this->form_validation->set_error_delimiters('<div class="error">', '</div>'); 
    $this->form_validation->set_rules('event_title','Event Title','required|max_length[40]'); 
    $this->form_validation->set_rules('event_desc','Event Description','required'); 
    $this->form_validation->set_rules('event_cat','Event Category','required|callback_is_default'); 
    $this->form_validation->set_rules('event_date','Event Date','required|date'); 
    $this->form_validation->set_rules('event_venue','Event Venue','required||max_length[25]'); 
    $this->form_validation->set_rules('event_charges','Event Charges','required'); 
    if($this->form_validation->run()== FALSE) 
    {  
    echo "error"; 
    $this->is_logged_in(); 
    } 
    else 
    { 
     echo "success"; 
     $userId = $this->ion_auth->get_user_id(); 

      $data=array(
       'cat_id '=> $this->input->post('event_cat'), 
       'user_id' => $userId, 
       'event_title' => $this->input->post('event_title'), 
       'event_desc' => $this->input->post('event_desc'), 
       'event_date' => $this->input->post('event_date'), 
       'event_venue' => $this->input->post('event_venue'), 
       'event_charges' => $this->input->post('event_charges'), 
       ); 
      $this->load->model('event_model'); 
      $this->event_model->add_event_record($data); 
      $this->index(); 


    } 

} 
public function _is_default($str) 
{ 
if ($str != 'yes' && $str != 'no') 
{ 
    $this->form_validation->set_message('_check_select_yes_or_no', 'Please select yes or no for the %s field'); 
    return FALSE; 
} 
else 
{ 
    return TRUE; 
} 
} 

當我插入數據，並提交頁面顯示「錯誤」，因爲我已經回聲「錯誤」，如果form_validation（）運行是false。 和我的視圖代碼：

<?php echo form_open('profile/event_desc'); ?> 
     <div class="event_wrapper"> 
      <div class="label_content"> 
       <div class="event_details">Event Title</div> 
       <input type="text" name="event_title" id="event_title" /> 
       <?php echo form_error('event_title','<div class="error_event">','</div>');?> 
      </div><!-- end of label_content--> 
      <div class="label_content"> 
       <div class="event_details">Event Description</div> 
       <textarea name="event_desc" id="event_desc"></textarea> 
       <?php echo form_error('event_desc','<div class="error_event">','</div>')?> 
      </div><!-- end of label_content--> 
      <div class="label_content"> 
      <div class="event_details"> Event Category</div> 
       <select name="event_cat" id="eventcat"> 
       <option value="select">_Select one_</option> 
       <option value="1">Informational Technology</option> 
       <option value="2">Education</option> 
       <option value="3">Entertainment</option> 
       <option value="4">Sports</option> 
       <option value="5">Seminars</option> 
       <option value="6">Research</option> 
       <option value="7">Science</option> 
       </select> 
       <?php echo form_error('event_cat','<div class="error_event">','</div>')?> 
      </div><!-- end of label_content--> 
      <div class="label_content"> 
      <div class="event_details"> Event Date</div> 
      <input type="datetime" name="event_date" value="" id="event_title"/> 
       <?php echo form_error('event_date','<div class="error_event">','</div>')?> 
      </div> 
      <div class="label_content"> 
      <div class="event_details"> Event Venue</div> 
      <input type="datetime" name="event_venue" value="" id="event_title"/> 
       <?php echo form_error('event_venue','<div class="error_event">','</div>')?> 
      </div> 
       <div class="label_content"> 
      <div class="event_details"> Event Charges</div> 
      <input type="datetime" name="event_charges" value="" id="event_title"/> 
       <?php echo form_error('event_charges','<div class="error_event">','</div>')?> 
      </div> 
      <div class="label_content"> 
       <div class="submit_gap"> 
        <button type="submit" class="signin">Upload</button> 
       </div> 

請幫我理清錯誤。

Answer 1

根據codeigniter文檔 - 嘗試將_is_default的回調更改爲is_default。

$this->form_validation->set_rules('username', 'Username', 'callback_username_check'); 


public function username_check($str){ /*code*/ } 

Answer 2

我查看了您的代碼，發現了以下問題。

1. 這個規則是錯誤的，它包含兩個|而不是一個。所以正確的規則是。因爲你不從你的菜單中選擇是或否返回所以正確的回調應該是

   $this->form_validation->set_rules('event_venue','Event Venue','required|max_length[25]'); 
   

2. 您的回調將不會爲真。

   public function is_default($str) 
   { 
   if ($str == 'select') 
   { 
       $this->form_validation->set_message('is_default', 'Please select yes or no for the  %s field'); 
   return FALSE; 
   } 
   else 
   { 
       return TRUE; 
       } 
   } 
   

更換這部分代碼，它會工作