我是代码点火器的新手。 这是我想要做的。我有存储在数据库表名产品中的产品列表。对于每个产品，我需要插入多个图像。我创建了两个表，产品和产品图像。我已经将table productimage的product_id作为外键，引用了表产品的product_id。现在我想从表单中保存数据。这是我之前做过的Saving images in a single row by imploding 但是我很难管理CRUD（比如编辑和删除图片）。 所以我试图做上面提到的方式。我找不到开始的方法。任何人都可以请教我，我该如何开始？
好的，现在我在这里做了一些编码。这是我的控制者：
class BaseImageView(wx.BoxSizer):
def __init__(self, project, panel, fps=5):
.......
#blow line will give error
self.bmp = wx.BitmapFromBuffer(width, height, self.removeBG(frame))
self.image = statbmp.GenStaticBitmap(panel, wx.ID_ANY, self.bmp)
self.Add(self.image)
.......
def removeBG(self, origFrame):
return cv2.createBackgroundSubtractorMOG2().apply(origFrame)
这是我的模特：
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Products extends CI_Controller{
public function __construct()
{
parent::__construct();
$this->load->model('product_model');
$this->load->helper(array('form','url'));
//Codeigniter : Write Less Do More
}
public function index()
{
$data['products']=$this->product_model->get_product();
$this->load->view('/landing_page',$data);
}
public function create()
{
#code
$this->load->helper('form');
$this->load->library('form_validation');
$this->form_validation->set_rules('product_name','Product_Name','required');
if($this->form_validation->run()=== FALSE)
{
$this->load->view('products/create');
}
else {
$this->product_model->set_product();
$data['products']=$this->product_model->get_product();
redirect('/');
}
}
}
Noe的情况是我的表单打开时我能够填写产品名称并上传图像文件。当我提交它时，它也不会抛出任何错误。但只有产品名称存储在产品表中，图像表没有任何反应。没有插入任何图像。浏览器不会抛出任何错误。只是图像 表是空的。这里的问题是什么？
答案 0 :(得分：1)
让我帮你控制器..你需要检查所有上传的文件。他们是$ _FILES。循环遍历数组，将它们上传到服务器上，然后调用模型函数将它们添加到产品图像表
中如果CI上传对您来说太棘手了。使用以下控制器功能
public function upload_images()
{
// following IF statement only checks if the user is logged in or not
if($this->session->userdata['id'] && $this->session->userdata['type']=='user')
{
if($_FILES)
{
// check whether there are files uploaded / posted
if(isset($_FILES['files'])){
$data['errors']= array();
$extensions = array("jpeg","jpg","png");
//Loop through the uploaded files
foreach($_FILES['files']['tmp_name'] as $key => $tmp_name ){
$file_name = $key.$_FILES['files']['name'][$key];
$file_size =$_FILES['files']['size'][$key];
$file_tmp =$_FILES['files']['tmp_name'][$key];
$i=1;
if($file_size > 2097152){
$data['errors'][$i]='File '.$i.' size must be less than 2 MB';
$i++;
}
// Set upload destination directory
$desired_dir="uploads";
if(empty($data['errors'])==true){
if(is_dir($desired_dir)==false){
mkdir("$desired_dir", 0700); // Create directory if it does not exist
}
if(is_dir("$desired_dir/".$file_name)==false){
// Upload the file.
move_uploaded_file($file_tmp,"uploads/".$file_name);
// Call a function from model to save the name of the image in images table along with entity id
$this->post_model->addImage('property_images',$file_name,$this->uri->segment(3));
}else{ //rename the file if another one exist
$new_dir="uploads/".$file_name.time();
rename($file_tmp,$new_dir) ;
}
}else{
$data['contact']=$this->admin_model->getContactDetails();
$data['images']=$this->post_model->getPropertyImages($this->uri->segment(3));
//load views
}
}
if(empty($data['errors']))
{
redirect(base_url().'dashboard');
}
else
{
$data['contact']=$this->admin_model->getContactDetails();
$data['images']=$this->post_model->getPropertyImages($this->uri->segment(3));
//load views
}
}
}
else
{
//Load view
}
}
else
{
redirect(base_url().'user/login');
}
}
答案 1 :(得分：0)
如果有人遇到同样的问题，那么这里就是解决方案。只需在您的上传功能中执行此操作。（由我的朋友Amani Ben azzouz编写代码）
public function set_product($id=0){
$picture=array();
$count=count($_FILES['picture']['name']);
//Check whether user upload picture
if(!empty($_FILES['picture']['name'])){
foreach($_FILES as $value){
for($s=0; $s<=$count-1; $s++){
$_FILES['picture']['name']=$value['name'][$s];
$_FILES['picture']['type'] = $value['type'][$s];
$_FILES['picture']['tmp_name'] = $value['tmp_name'][$s];
$_FILES['picture']['error'] = $value['error'][$s];
$_FILES['picture']['size'] = $value['size'][$s];
$config['upload_path'] = 'uploads/images/';
$config['allowed_types'] = 'jpg|jpeg|png|gif';
$config['file_name'] = $_FILES['picture']['name'];
//Load upload library and initialize configuration
$this->load->library('upload',$config);
$this->upload->initialize($config);
// print_r($value['name'][$s]);exit;
if($this->upload->do_upload('picture')){
$uploadData = $this->upload->data();
$picture[] = $uploadData['file_name'];
}
}
}
}//end of first if
$data=array('product_name'=>$this->input->post('product_name'));
if ($id==0){
$this->db->insert('products',$data);
$last_id = $this->db->insert_id();
if(!empty($picture)){
foreach($picture as $p_index=>$p_value) {
$this->db->insert('images', array('product_id'=>$last_id,'images'=>$p_value));
}
}
}
else {
$this->db->where('id',$id);
$this->db->update('products',$data);
if(!empty($picture)){
foreach($picture as $p_index=>$p_value) {
$this->db->update('images', array('product_id'=>$last_id,'images'=>$p_value) ); // --> this one?
}
}
}
}
这也是用于插入和更新的。如果您只是想插入，只需删除传递的参数＆＃39; id＆＃39;切断if if和else部分写一个简单的内部代码＆＃39; if＆＃39;。
答案 2 :(得分：0)
function contract_upload(){ // function to call from your view.
$data = array();
// If file upload form submitted
if(!empty($_FILES['files']['name']) AND !empty('user_id')){
$filesCount = count($_FILES['files']['name']);
for($i = 0; $i < $filesCount; $i++){
$_FILES['file']['name'] = $_FILES['files']['name'][$i];
$_FILES['file']['type'] = $_FILES['files']['type'][$i];
$_FILES['file']['tmp_name'] = $_FILES['files']['tmp_name'][$i];
$_FILES['file']['error'] = $_FILES['files']['error'][$i];
$_FILES['file']['size'] = $_FILES['files']['size'][$i];
// File upload configuration
$uploadPath = './uploads/contract/';
$config['upload_path'] = $uploadPath;
$config['allowed_types'] = 'jpg|jpeg|png|gif';
$config['encrypt_name'] = TRUE;
// Load and initialize upload library
$this->load->library('upload', $config);
$this->upload->initialize($config);
// Upload file to server
if($this->upload->do_upload('file')){
// Uploaded file data
$fileData = $this->upload->data();
$uploadData[$i]['file_name'] = $fileData['file_name'];
$uploadData[$i]['emp_id'] = $this->input->post('user_id');
}
}
if(!empty($uploadData)){
// Insert files data into the database
$insert = $this->Contract_model->insert($uploadData);
// Upload status message
$statusMsg = $insert?'Files uploaded successfully.':'Some problem occurred, please try again.';
$this->session->set_flashdata('messageactive', $statusMsg);
}
}
redirect('contract'); // redirect link, where do you want to redirect after successful uploading of the file.
}
// Model Function
public function insert($data = array()){
$insert = $this->db->insert_batch('employee_contract_files', $data); // table name and the data you want to insert into database.
return $insert?true:false;
}
请记住一件事，您应该按照以下方式编写HTML：
<input type="file" name="files[]" multiple />