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Image resize issues - Printable Version

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+--- Thread: Image resize issues (/showthread.php?tid=51156)

Image resize issues - El Forum - 04-23-2012

[eluser]Matty[/eluser]
I have created a gallery page which allows me to upload images to a gallery but for some reason when I try and do the image resize I just get a white page! I am sure that the issue is when I run the following code but I can't seem to find out what is wrong.

Code:
$configresize = array(
  'image_library' => 'GD2',
  'source_image' => $image_data['full_path'],
  'new_image' => $this->gallery_path . '/thumbs',
  'maintain_ratio' => true,
  'width' => 150,
  'height' => 150
  );

//Initialize the image library for manipulation
$this->load->library('image_lib', $configresize);

if(!$this->image_lib->resize())
{
echo $this->image_lib->display_errors();
}

When I run this code I cant even seem to get the errors working and I haven't a clue why, please can someone help. In my experience with CI a blank white page is usually a slight code error like not closing an echo etc, but I can not see where it could be.

My view holds this form
Code:
echo '<h3>Add an Image</h3>';
   var_dump($this->session->all_userdata());
   $hidden = array('form' => 'gallery');
   $url = base_url() . uri_string();
   echo form_open_multipart($url, '', $hidden);
   ?&gt;
   <p>
    &lt;?php echo form_upload('userfile'); ?&gt;
   </p>
   <p>
    &lt;?php echo form_label('Image Description', 'i_description');?&gt;
    &lt;?php echo form_textarea('i_description', set_value('i_description', $this->input->post('i_description')));?&gt;
   <p>
    &lt;?php echo form_submit('upload', 'Upload'); ?&gt;
   </p>
   &lt;?php
   echo form_close();

My controller calls the gallery model function when the upload is sent
Code:
function gallery()
{
  $data = $this->_user_data();
  
  if($this->input->post('upload')){
   $data['upload'] = $this->gallery_model->do_upload();
  }
    
  $where = array(
   'p_id' => $data['user_profile']->p_id,
   'i_gallery' => $this->uri->segment(4)
  );
  
  $data['images'] = $this->crud_model->fetch_rows_where('artist_images', $where);
  $data['template'] = 'admin/gallery';
  $this->load->view('layouts/template', $data);
}

And this is the gallery model function to handle the data
Code:
class Gallery_model extends CI_Model {

var $gallery_path;
var $gallery_path_url;

function __construct()
{
  parent::__construct();
  $this->gallery_path = realpath(APPPATH . '../public/img/uploads');
  $this->gallery_path_url = base_url().'public/img/uploads/';
  // Load the form validation library
  $this->load->library('form_validation');
}

function do_upload()
{

   //Set the config options/rules for the uploaded file
  $config = array(
   'allowed_types' => 'png|jpg|jpeg|gif',
   'upload_path' => $this->gallery_path,
   'max_size' => 2048
   );

  //initialize the upload library
  $this->load->library('upload', $config);

  // See if the upload completes and if not then return an error
  if( ! $this->upload->do_upload())
  {
   $error = $this->upload->display_errors();
   return $error;
  }

  $image_data = $this->upload->data();

  //Set the config file for the image library
  $configresize = array(
     'image_library' => 'GD2',
     'source_image' => $image_data['full_path'],
     'new_image' => $this->gallery_path . '/thumbs',
     'maintain_ratio' => true,
     'width' => 150,
     'height' => 150
     );

  //Initialize the image library for manipulation
  $this->load->library('image_lib', $configresize);

  if(!$this->image_lib->resize())
  {
   echo $this->image_lib->display_errors();
  }
  else
  {
   $db_config = array(
    'p_id' => $this->session->userdata('user_id'),
    'artist_id' => $this->session->userdata('user_number'),
    'i_gallery' => $this->uri->segment(4),
    'i_image' => $this->gallery_path_url . $image_data['file_name'],
    'i_thumb' => $this->gallery_path_url . 'thumbs/' . $image_data['file_name']
   );

   //Insert the data into the database
   $this->db->insert('artist_images', $db_config);

   return $message;
  }
}

function _validate_upload()
{
  // Set the rules
  $this->form_validation->set_rules('i_description', 'Image Description', 'trim|xss_clean');
  
  // Run and pass the validator
  return $this->form_validation->run();
}
}


Image resize issues - El Forum - 04-23-2012

[eluser]astroanu[/eluser]
first try


Code:
$this->image_lib->resize();
echo $this->image_lib->display_errors();



it should display smthing weather the resize was successful or not.

Image resize issues - El Forum - 04-23-2012

[eluser]Matty[/eluser]
I tried it but I just get the white page again.

This is my new model function

Code:
function do_upload()
{
    //Set the config options/rules for the uploaded file
    $config = array(
'allowed_types' => 'png|jpg|jpeg|gif',
'upload_path' => $this->gallery_path,
'max_size' => 2048
);

    //initialize the upload library
    $this->load->library('upload', $config);

    // See if the upload completes and if not then return an error
    if( ! $this->upload->do_upload())
    {
$error = $this->upload->display_errors();
return $error;
    }

    $image_data = $this->upload->data();

    //Set the config file for the image library
    $configresize = array(
'image_library' => 'GD2',
'source_image' => $image_data['full_path'],
'new_image' => $this->gallery_path . '/thumbs',
'maintain_ratio' => true,
'width' => 150,
'height' => 150
);

//Initialize the image library for manipulation
$this->load->library('image_lib', $configresize);
$this->image_lib->resize();
echo $this->image_lib->display_errors();

    $db_config = array(
'p_id' => $this->session->userdata('user_id'),
'artist_id' => $this->session->userdata('user_number'),
'i_gallery' => $this->uri->segment(4),
'i_image' => $this->gallery_path_url . $image_data['file_name'],
'i_thumb' => $this->gallery_path_url . 'thumbs/' . $image_data['file_name']
);

    //Insert the data into the database
    $this->db->insert('artist_images', $db_config);

    return $message;
}