[eluser]Sinclair[/eluser]
Hi,
I need to display an error if the image is < than 300 pixels. Which is the best way of doing this?
Sorry for my bad english.
Best Regards,
[eluser][254]Prof[/eluser]
You can add it as a rule when you load the File Uploading Library:
Code: $config['max_width'] = 300;
$this->load->library('upload', $config);
if (!this->upload->do_upload()) {
$error = $this->upload->display_errors();
} else {
// Your code here
}
In your view, add:
Code: if (isset($error)) echo $error;
[eluser]Sinclair[/eluser]
Hi, thanks for the reply.
I don't want to pop up an error if the max_width is larger than 300 pixels. I need to do the opposite. I need the display error if the size is less than 300 pixels.
I think I must to extend the Upload Library. Correct?
Best Regards,
[eluser][254]Prof[/eluser]
Sorry, I had misunderstood the question.
I think you will have to extend the Upload library
Kind regards
[eluser]Sinclair[/eluser]
Hi,
I'm trying to extend the Upload Library to pop up an Error when images have less than X pixels.
Code: <?PHP
class MY_Upload extends CI_Upload {
var $min_width = 0;
var $min_height = 0;
/**
* Set Minimum Image Height
*
* @access public
* @param integer
* @return void
*/
function set_min_height($n)
{
$this->min_height = ((int) $n < 0) ? 0: (int) $n;
}
/**
* Set Minimum Image Width
*
* @access public
* @param integer
* @return void
*/
function set_min_width($n)
{
$this->min_width = ((int) $n < 0) ? 0: (int) $n;
}
/**
* Verify that the image is within the allowed minimum width/height
*
* @access public
* @return bool
*/
function is_allowed_min_dimensions()
{
if ( ! $this->is_image())
{
return TRUE;
}
if (function_exists('getimagesize'))
{
$D = @getimagesize($this->file_temp);
if ($this->min_width > 0 AND $D['0'] > $this->min_width)
{
return FALSE;
}
if ($this->min_height > 0 AND $D['1'] > $this->min_height)
{
return FALSE;
}
return TRUE;
}
return TRUE;
}
}
I have this until now. What I need to do more to get this extend working. And wich is the best way of doing this extend without broke the CI compatibility?
Best Regards,
[eluser]Flynn[/eluser]
Try this one instead of function is_allowed_min_dimensions
Code: function is_allowed_dimensions()
{
if ( ! $this->is_image())
{
return TRUE;
}
if (function_exists('getimagesize'))
{
$D = @getimagesize($this->file_temp);
if ($this->max_width > 0 AND $D['0'] > $this->max_width)
{
return FALSE;
}
if ($this->max_height > 0 AND $D['1'] > $this->max_height)
{
return FALSE;
}
if ($this->min_width > 0 AND $D['0'] < $this->min_width)
{
return FALSE;
}
if ($this->min_height > 0 AND $D['1'] < $this->min_height)
{
return FALSE;
}
return TRUE;
}
return TRUE;
}
[eluser]Sinclair[/eluser]
Hi, thanks for the reply.
And how to add the "min_width" and the "min_height" to the config file?
To the "max_width" and "max_height" we use:
Code: $config['max_width'] = 7000;
$config['max_height'] = 6000;
How to add this config lines to the "min_width" and the "min_height"?
Best Regards,
[eluser]Flynn[/eluser]
Keep this:
Code: function set_min_height($n)
{
$this->min_height = ((int) $n < 0) ? 0: (int) $n;
}
function set_min_width($n)
{
$this->min_width = ((int) $n < 0) ? 0: (int) $n;
}
And add this at the beginning:
Code: function initialize($config = array())
{
$defaults = array(
'max_size' => 0,
'max_width' => 0,
'max_height' => 0,
'max_filename' => 0,
'min_width' => 0,
'min_height' => 0,
'allowed_types' => "",
'file_temp' => "",
'file_name' => "",
'orig_name' => "",
'file_type' => "",
'file_size' => "",
'file_ext' => "",
'upload_path' => "",
'overwrite' => FALSE,
'encrypt_name' => FALSE,
'is_image' => FALSE,
'image_width' => '',
'image_height' => '',
'image_type' => '',
'image_size_str' => '',
'error_msg' => array(),
'mimes' => array(),
'remove_spaces' => TRUE,
'xss_clean' => FALSE,
'temp_prefix' => "temp_file_"
);
foreach ($defaults as $key => $val)
{
if (isset($config[$key]))
{
$method = 'set_'.$key;
if (method_exists($this, $method))
{
$this->$method($config[$key]);
}
else
{
$this->$key = $config[$key];
}
}
else
{
$this->$key = $val;
}
}
}
I think that'll do the work.
[eluser]juanvillegas[/eluser]
Good job! But are you sure no one has already extend this? Maybe some google would save you some coding hours
[eluser]Flynn[/eluser]
Well, i wasn't in the mood to dig google and i was sure that it wouldn't take much time to extend library with "minimum check". It took only 5-10 minutes to check what is where and extend it.
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