codeiginter upload and resize - ajax

Question

I have a problem with CI class image, image does not resize...
for example :
controller
private function _do_upload(){
$config['upload_path'] = 'upload/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = 1000; //set max size allowed in Kilobyte
$config['max_width'] = 1000; // set max width image allowed
$config['max_height'] = 1000; // set max height allowed
$config['file_name'] = round(microtime(true) * 1000);
$this->load->library('upload', $config);
if($this->upload->do_upload('photo')) //upload and validate{
$config2['image_library'] = 'gd2';
$config2['source_image'] = $this->upload->upload_path;
$config2['create_thumb'] = TRUE;
$config2['maintain_ratio'] = TRUE;
$config2['width'] = 450;
$config2['height'] = 500;
$this->load->library('image_lib', $config2);
if(!$this->image_lib->resize()){
$data['inputerror'][] = 'photo';
$data['error_string'][] = 'Upload error: '.$this->upload->display_errors('','');
$data['status'] = FALSE;
}
return $this->upload->data('file_name');
}else{
$data['inputerror'][] = 'photo';
$data['error_string'][] = 'Upload error: '.$this->upload->display_errors('',''); //show ajax error
$data['status'] = FALSE;
echo json_encode($data);
exit();
}
}
But i got no error, I dont know where is the mistake?

Answer 1

Well you have a few issues...
1. You have commented out your opening { which would break your code.
if($this->upload->do_upload('photo')) //upload and validate {
Should be
if($this->upload->do_upload('photo')) { //upload and validate
2. The next part: If you do have a resize error you are not doing anything with your messages... So...
if(!$this->image_lib->resize()){
$data['inputerror'][] = 'photo';
$data['error_string'][] = 'Upload error: '.$this->upload->display_errors('','');
$data['status'] = FALSE;
}
Needs the added json_encode like..
if(!$this->image_lib->resize()){
$data['inputerror'][] = 'photo';
$data['error_string'][] = 'Upload error: '.$this->upload->display_errors('','');
$data['status'] = FALSE;
echo json_encode($data);
exit();
}
In reference to your resizing, you do need to supply the images full filename and not just the path where "files" live...
Your source_image is a Path to where the files are uploaded to. Not the Path/Filename of the image you want to resize...
$config2['source_image'] = $this->upload->upload_path;
So if you add this line that gives you the full path and filename and use it...
$file_data = $this->upload->data();
$config2['source_image'] = $file_data['full_path'];
Does that work better?