Using filters to process uploaded images

Resolved

(@ffenton)

I have posted about this on the main website, but so far no reply.

Basically I am wanting to resize images after they have uploaded.
Following this post https://wordpress.org/support/topic/possible-to-use-uploaded-file-after-upload-is-success I have installed Code Snippets and created the following snippet just as a test to see if I can get that to work before addressing resizing images. Unfortunately the post went to private email so solution was never posted.
I am having the same problem in that images are uploaded but no log file is created. (I even tried creating an empty log file first)

if (!function_exists('wfu_before_file_upload_handler')) {
    function wfu_before_file_upload_handler($file_path, $file_unique_id) {
      $_SESSION['wfu_tempfiles'][$file_unique_id] = $file_path;
      return $file_path;
	  $message="TEST MESSAGE 1";
	  wfu_debug_log($message);
  }
  add_filter('wfu_before_file_upload', 'wfu_before_file_upload_handler', 10, 2);
}
if (!function_exists('wfu_after_file_upload_handler')) {
  function wfu_after_file_upload_handler($changable_data, $additional_data) {
    if ($additional_data['upload_result'] == 'success' && isset($_SESSION['wfu_tempfiles'][$file_unique_id]) && $_SESSION['wfu_tempfiles'][$file_unique_id] != '') {
	  $file_contents = file_get_contents($_SESSION['wfu_tempfiles'][$file_unique_id]);
     $message="TEST MESSAGE 2";
	  wfu_debug_log($message);

	}
	return $changable_data;
  }
  add_filter('wfu_after_file_upload', 'wfu_after_file_upload_handler', 10, 2);
}

All I need to be able to do is grab the location of each uploaded file and pass it to some php code for resizing.

https://wordpress.org/plugins/wp-file-upload/

Viewing 3 replies - 1 through 3 (of 3 total)

Plugin Author

nickboss

(@nickboss)

10 years, 7 months ago

Hi, Where did you send the first post? I never received it. Let me check the code you created and get back to you soon.

Plugin Author

nickboss

(@nickboss)

10 years, 7 months ago

As i see, “TEST MESSAGE 1” will never be logged because you have already returned from the function because of the previous return command.

In wfu_after_file_upload_handler function, $file_unique_id is not defined. Add the following code before the if statement:

$file_unique_id = $additional_data["file_unique_id"];

Test it and let me know.

Thread Starter

ffenton

(@ffenton)

10 years, 7 months ago

Thanks Nick, that set me on the right path and I now have it working as wanted.
For anyone else wanting to resize images after upload this is what I ended up with.

if (!function_exists('wfu_before_file_upload_handler')) {
    function wfu_before_file_upload_handler($file_path, $file_unique_id) {
      $_SESSION['wfu_tempfiles'][$file_unique_id] = $file_path;
      return $file_path;
  }
  add_filter('wfu_before_file_upload', 'wfu_before_file_upload_handler', 10, 2);
}
if (!function_exists('wfu_after_file_upload_handler')) {
  function wfu_after_file_upload_handler($changable_data, $additional_data) {
	$file_unique_id = $additional_data["file_unique_id"];
    if ($additional_data['upload_result'] == 'success' && isset($_SESSION['wfu_tempfiles'][$file_unique_id]) && $_SESSION['wfu_tempfiles'][$file_unique_id] != '') {
     $filepath= $_SESSION['wfu_tempfiles'][$file_unique_id];
	 //now that we have the path to uploaded file we can resize it using our resizeImage function in our functions.php file
	 resizeImage($filepath, $filepath, 600, 600);

	}
	return $changable_data;
  }
  add_filter('wfu_after_file_upload', 'wfu_after_file_upload_handler', 10, 2);
}

Viewing 3 replies - 1 through 3 (of 3 total)

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