how to do image upload in codeigniter? - codeigniter

Question

I am trying to upload an image in root folder and its file name in database. here is what I did for the upload function:
public function add_blog($id=0){
if(!empty($_FILES['picture']['name'])){
$config['upload_path'] = 'uploads/blog_image';
$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 = $uploadData['file_name'];
print_r($picture); exit;
}
}
print_r($config['file_name']); exit;
$data['blog_data']=array('blog_post'=>$this->input->post('blog_post'),
'posted_by'=>$this->input->post('posted_by'),
'blog_image'=>$picture);
if ($id==0){
$this->db->insert('blog',$data['blog_data']);
// $last_id = $this->db->insert_id();
}
else {
$this->db->where('id',$id);
// $last_id = $this->db->insert_id();
$this->db->update('blog',$data['blog_data']);
}
}
problem here is i am being able to insert other data except image. I get the image name with that print_r($config[file_name]) if i do print_r() and exit, if not it will just insert other data except image. But the image is neither uploaded in root folder nor its name in database. If I give the non existing upload path, then also its not throwing any error. I think code inside If is not executed. How can i solve this ? Thanks in advance.

Answer 1

private function _upload_image( ) {
$this->load->library( 'upload' );
if ($_FILES && $_FILES['picture']['name'] !== ""){
$config['upload_path'] = 'uploads/blog_image';
$config['allowed_types'] = 'jpg|jpeg|png|bmp';
$config['max_size'] = 10000;
/*the picture name must be unique, use function now()*/
$config['file_name'] = $_FILES['picture']['name'] . now();
$config['file_ext_tolower'] = TRUE;
$this->upload->initialize( $config );
if ( $this->upload->do_upload( 'picture' ) ){
$file_name = $this->upload->data()['file_name'];
$full_path = $this->upload->data()['full_path'];
/*If you want create a thumb, use this part*/
$this->load->library('image_lib');
$config = array(
'source_image' => $path,
'new_image' => $this->_image_path,
'maintain_ratio' => true,
'width' => 128,
'height' => 128,
'create_thumb' => TRUE,
'thumb_marker' => '_thumb',
);
$this->image_lib->initialize( $config );
$this->image_lib->resize();
/*Save in database*/
$this->db->insert('blog', [
'file_name' => $file_name,
'full_path' => $full_path
]);
} else {
//if picture is empty, do something
}
}
}
You do not need to use $_FILES && $_FILES ['picture']['name']! == "" only if your form has the picture field as an optional field, $this->upload->do_upload('picture') and get data from $this->upload->data(), read the manual
public function add_blog()
{
$config['upload_path'] = '.uploads/blog_image';
$config['allowed_types'] = 'jpg|jpeg|png|gif';
$config['max_size'] = 10000;
$this->load->library('upload', $config);
if ( ! $this->upload->do_upload('picture'))
{//Do something with errors
$errors = $this->upload->display_errors();
}
else
{
$data = $this->upload->data();
$this->db->insert('blog', [
'file_name' => $data['file_name'],
'full_path' => $data['full_path']
]);
}
}

Answer 2

I just didn't mention the file size to be uploaded. I did this in my above code and worked.
EDIT
public function add_blog($id=0){
if(!empty($_FILES['picture']['name'])){
$config['upload_path'] = 'uploads/blog_image';
$config['allowed_types'] = 'jpg|jpeg|png|gif';
$config['max_size'] = 0;
$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 = $uploadData['file_name'];
// print_r($picture); exit;
}
}
// print_r($config['file_name']); exit;
$data['blog_data']=array('blog_post'=>$this->input->post('blog_post'),
'posted_by'=>$this->input->post('posted_by'),
'blog_image'=>$picture);
if ($id==0){
$this->db->insert('blog',$data['blog_data']);
// $last_id = $this->db->insert_id();
}
else {
$this->db->where('id',$id);
// $last_id = $this->db->insert_id();
$this->db->update('blog',$data['blog_data']);
}
}
And this code works for both insert and update.