[英]insert and update in single form in CodeIgniter
這里我有控制器news.php:
<?php
class News extends CI_Controller{
public function __construct(){
parent::__construct();
$this->load->model('news_model');
$this->load->helper('url_helper');
}
public function index(){
$data['news'] = $this->news_model->get_news();
$data['title'] = 'News archive';
$this->load->view('templates/header', $data);
$this->load->view('news/index', $data);
$this->load->view('templates/footer');
}
public function view($slug = NULL)
{
$data['news_item'] = $this->news_model->get_news($slug);
if (empty($data['news_item']))
{
show_404();
}
$data['title'] = "News in Detail(s)";
$this->load->view('templates/header', $data);
$this->load->view('news/view', $data);
$this->load->view('templates/footer');
}
public function create()
{
$this->load->helper('form');
$this->load->library('form_validation');
$data['title'] = 'Create a news item 22';
$this->form_validation->set_rules('title', 'Title', 'required');
$this->form_validation->set_rules('text', 'Text', 'required');
$data['updateid'] = '' ;
if ($this->form_validation->run() === FALSE)
{
$this->load->view('templates/header', $data);
$this->load->view('news/create');
$this->load->view('templates/footer');
}
else
{
$this->news_model->set_news();
if($update == 1){
redirect('/news', 'location');
}
}
}
public function update($id){
$this->load->helper('form');
$this->load->library('form_validation');
$data['updateid'] = $id;
$data['title'] = "Update News in Detail(s)";
$data['update'] = $this->news_model->edit_load_data($id);
$this->load->view('news/create',$data);
if ($this->input->post('submit')) {
$update = $this->news_model->update_news($id);
if($update == 1){
redirect('/news', 'location');
}
}
}
}
?>
這是我的模型文件news_model.php:
<?php
class News_model extends CI_Model{
public function __construct(){
$this->load->database();
}
public function get_news($slug= false){
if($slug == false){
$query= $this->db->get('news');
return $query->result_array();
}
$query = $this->db->get_where('news', array('slug' => $slug));
return $query->row_array();
}
public function set_news(){
$this->load->helper('url');
$slug = url_title($this->input->post('title'), 'dash', TRUE);
$data = array(
'title' => $this->input->post('title'),
'slug' => $slug,
//'text' => $this->input->post('text')
'text' => $this->input->post('select')
);
return $this->db->insert('news', $data);
}
public function edit_load_data($id){
$query = $this->db->get_where('news', array('id' => $id));
return $query->row_array();
}
public function update_news($id){
$this->load->helper('url');
$slug = url_title($this->input->post('title'), 'dash', TRUE);
$data = array(
'title' => $this->input->post('title'),
'slug' => $slug,
//'text' => $this->input->post('text')
'text' => $this->input->post('select')
);
$this->db->where('id', $id);
return $this->db->update('news', $data);
}
}
?>
這是我的表單create.php文件:
<?php echo validation_errors();
echo $updateid;
?>
<?php if($updateid == ''){ ?>
<?php echo form_open('news/create'); ?>
<?php } else { ?>
<?php echo form_open('news/update/'.$updateid); ?>
<?php } ?>
<label for="title">Title</label>
<input type="input" name="title" value="<?php echo $update['title']; ?>" /><br />
<label for="text">Text</label>
<textarea name="text" ><?php echo set_value('text'); ?></textarea><br />
<label for="text">Select</label>
<select name="select">
<option <?php if($update['text']=='text1'){ echo "selected";} ?> value="text1">text1</option>
<option <?php if( $update['text']=='text2'){ echo "selected";} ?> value="text2">text2</option>
</select>
<br />
<input type="submit" name="submit" value="Create news item" />
</form>
這里當我要去新聞/創建時給出了錯誤:
遇到PHP錯誤
嚴重性:注意
消息:未定義的變量:更新
文件名:news / create.php
行號:15
回溯:
文件:C:\\ xampp \\ htdocs \\ mylab \\ application \\ views \\ news \\ create.php行:15功能:_error_handler
文件:C:\\ xampp \\ htdocs \\ mylab \\ application \\ controllers \\ News.php行:54功能:查看
文件:C:\\ xampp \\ htdocs \\ mylab \\ index.php行:315功能:require_once“/>
我能做些什么? 我想為同一個文件添加和編輯create.php有可能嗎?
我不知道這會產生你想要的結果,但它會阻止使用未定義的變量。
<?php
echo validation_errors();
$updateid = isset($updateid) ? $updateid : '';
echo $updateid;
if($updateid == '')
{
echo form_open('news/create');
}
else
{
echo form_open('news/update/'.$updateid);
}
if(!isset($update))
{
$update['title'] = NULL;
$update['slug'] = NULL;
$update['text'] = NULL;
}
?>
<label for="title">Title</label>
<input type="input" name="title" value="<?php echo $update['title']; ?>" /><br />
<label for="text">Text</label>
<textarea name="text" ><?php echo set_value('text'); ?></textarea><br />
<label for="text">Select</label>
<select name="select">
<option <?php
if($update['text'] == 'text1')
{
echo "selected";
}
?> value="text1">text1</option>
<option <?php
if($update['text'] == 'text2')
{
echo "selected";
}
?> value="text2">text2</option>
</select>
<br />
<input type="submit" name="submit" value="Create news item" />
</form>
您應該修改模型,以便在輸入不存在時返回默認數組。 我無法確定您向視圖發送$update
的位置。
我認為你沒有返回$ update ['title'],$ update ['text']等。你要返回$ title,$ text ...
嘗試將$ update ['title']更改為create.php中的$ title,看看會發生什么
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