Mehrere Bildgrößen auf einmal in Codeigniter, funktioniert nicht

Question

Ich versuche Bilder hochzuladen und sie in verschiedenen Dimensionen innerhalb der gleichen Funktion neu zu sortieren. aber was passiert, ist, dass nur eine Größe funktioniert und die anderen nicht. Mein Code ist:

function do_upload() 
{ 
    $this_user = $this->auth->info;if(!is_dir('./uploads/'.$this_user->username)){ 
     mkdir('./uploads/'.$this_user->username); 
     mkdir('./uploads/'.$this_user->username.'/photos'); 
     mkdir('./uploads/'.$this_user->username.'/photos/master'); 
     mkdir('./uploads/'.$this_user->username.'/photos/small'); 
     mkdir('./uploads/'.$this_user->username.'/photos/medium'); 
     mkdir('./uploads/'.$this_user->username.'/photos/large'); 
     mkdir('./uploads/'.$this_user->username.'/photos/xlarge'); 
    } 
    $config['upload_path'] = './uploads/'.$this_user->username.'/photos/master/'; 
    $config['allowed_types'] = 'gif|jpg'; 

    $title = $this->input->post('title'); 
    $this->load->library('upload', $config); 
    if (! $this->upload->do_upload()) 
    { 
     echo '<div id="status">error</div>'; 
     echo '<div id="message">'. $this->upload->display_errors() .'</div>'; 
    } 
    else 
    { 
     $data = array('upload_data' => $this->upload->data()); 
     //resizing begins 
      $image_width = $data['upload_data']['image_width']; 
      $image_height = $data['upload_data']['image_height']; 
      $full_path = $data['upload_data']['full_path']; 
      //checking for width 
      if($image_width>5000){ 
       $config['image_library'] = 'gd2'; 
       $config['source_image'] = $full_path; 
       //$config['create_thumb'] = TRUE; 
       $config['maintain_ratio'] = TRUE; 
       $config['width'] = 5000; 
       //$config['height'] = 50; 
       $config['new_image'] = './uploads/'.$this_user->username.'/photos/xlarge'; 
       $this->load->library('image_lib', $config); 
       $this->image_lib->resize(); 
      } 
      if($image_width>=4500){ 
       $config['image_library'] = 'gd2'; 
       $config['source_image'] = $full_path; 
       //$config['create_thumb'] = TRUE; 
       $config['maintain_ratio'] = TRUE; 
       $config['width'] = 4500; 
       //$config['height'] = 50; 
       $config['new_image'] = './uploads/'.$this_user->username.'/photos/large'; 
       $this->load->library('image_lib', $config); 
       $this->image_lib->resize(); 
      } 
      if($image_width>=2000){ 
       $config['image_library'] = 'gd2'; 
       $config['source_image'] = $full_path; 
       //$config['create_thumb'] = TRUE; 
       $config['maintain_ratio'] = TRUE; 
       $config['width'] = 2000; 
       //$config['height'] = 50; 
       $config['new_image'] = './uploads/'.$this_user->username.'/photos/medium'; 
       $this->load->library('image_lib', $config); 
       $this->image_lib->resize(); 
      } 
      if($image_width>=800){ 
       $config['image_library'] = 'gd2'; 
       $config['source_image'] = $full_path; 
       //$config['create_thumb'] = TRUE; 
       $config['maintain_ratio'] = TRUE; 
       $config['width'] = 800; 
       //$config['height'] = 50; 
       $config['new_image'] = './uploads/'.$this_user->username.'/photos/small'; 
       $this->load->library('image_lib', $config); 
       $this->image_lib->resize(); 
      } 
     //resizing ends 
     echo '<div id="status">success</div>'; 
     //then output your message (optional) 
     echo '<div id="message">'. $data['upload_data']['file_name'].$this->input->post('type').' Successfully uploaded.</div>'; 
     //pass the data to js 
     echo '<div id="upload_data">'. json_encode($data) . '</div>'; 

    } 
} 

Was mache ich hier falsch?

Answer 1

Sie müssen sicherstellen, dass Sie $this->image_lib->clear(); aufrufen, da es die Initialisierung der Bildverarbeitungsklasse zurücksetzt. Siehe: http://codeigniter.com/user_guide/libraries/image_lib.html

Answer 2

das funktionierte tatsächlich für mich. Ich habe die Bibliothek mehrmals geladen. Ich hätte die Bibliothek einmal laden und die Konfigurationen für jede Größe neu initialisieren sollen. Hier ist der Code, der für mich funktioniert hat.

function do_upload() 
{ 
    $this_user = $this->auth->info; 
    if(!is_dir('./uploads/'.$this_user->username)){ 
     mkdir('./uploads/'.$this_user->username); 
     mkdir('./uploads/'.$this_user->username.'/photos'); 
     mkdir('./uploads/'.$this_user->username.'/photos/master'); 
     mkdir('./uploads/'.$this_user->username.'/photos/small'); 
     mkdir('./uploads/'.$this_user->username.'/photos/medium'); 
     mkdir('./uploads/'.$this_user->username.'/photos/large'); 
     mkdir('./uploads/'.$this_user->username.'/photos/xlarge'); 
    } 
    $config['upload_path'] = './uploads/'.$this_user->username.'/photos/master/'; 
    $config['allowed_types'] = 'gif|jpg'; 
    $title = $this->input->post('title'); 
    $this->load->library('upload', $config); 
    if (! $this->upload->do_upload()) 
    { 
     echo '<div id="status">error</div>'; 
     echo '<div id="message">'. $this->upload->display_errors() .'</div>'; 
    } 
    else 
    { 
     $data = array('upload_data' => $this->upload->data()); 
     //resizing begins 
      $image_width = $data['upload_data']['image_width']; 
      $image_height = $data['upload_data']['image_height']; 
      $full_path = $data['upload_data']['full_path']; 
      //checking for width 
      $this->load->library('image_lib'); 
      if($image_width>5000){ 
       $config['source_image'] = $full_path; 
       $config['maintain_ratio'] = TRUE; 
       $config['width'] = 5000; 
       $config['new_image'] = './uploads/'.$this_user->username.'/photos/xlarge'; 
       $this->image_lib->initialize($config); 
       $this->image_lib->resize(); 
       $this->image_lib->clear(); 
       $aa = 'xlarge '; 
      } 
      if($image_width>=4500){ 
       $config['source_image'] = $full_path; 
       $config['maintain_ratio'] = TRUE; 
       $config['width'] = 4500; 
       $config['new_image'] = './uploads/'.$this_user->username.'/photos/large'; 
       $this->image_lib->initialize($config); 
       $this->image_lib->resize(); 
       $this->image_lib->clear(); 
       $aa .= 'large'; 
      } 
      if($image_width>=2000){ 
       $config['source_image'] = $full_path; 
       $config['maintain_ratio'] = TRUE; 
       $config['width'] = 2000; 
       $config['new_image'] = './uploads/'.$this_user->username.'/photos/medium'; 
       $this->image_lib->initialize($config); 
       $this->image_lib->resize(); 
       $this->image_lib->clear(); 
       $aa .= 'medium'; 
      } 
      if($image_width>=800){ 
       $config['source_image'] = $full_path; 
       $config['maintain_ratio'] = TRUE; 
       $config['width'] = 800; 
       $config['new_image'] = './uploads/'.$this_user->username.'/photos/small'; 
       $this->image_lib->initialize($config); 
       $this->image_lib->resize(); 
       $this->image_lib->clear(); 
       $aa .= 'small'; 
      } 
     //resizing ends 
     echo '<div id="status">success</div>'; 
     //then output your message (optional) 
     echo '<div id="message">'. $data['upload_data']['file_name'].$aa.' Successfully uploaded.</div>'; 
     //pass the data to js 
     echo '<div id="upload_data">'. json_encode($data) . '</div>'; 

    } 
}