Specifiying only certain files to upload to S3

Use this filter to return an array of file extension you would want to upload to your s3 bucket.

as3cf_allowed_mime_types

Thanks for feedback.

How and where might i implement this?

Thanks in advance.

By default the plugin will upload all file extensions returned by this function
get_allowed_mime_types()
you can check the full list of the file extension returned here.

So let’s say you want the plugin to only upload image files with extensions (jpeg|png|gif) to your s3 bucket, in your theme functions.php file place this function.

add_filter( 'as3cf_allowed_mime_types', 'allowed_s3_mime_types' );

function allowed_s3_mime_types() {
   $s3_mime = array( 'image/jpeg','image/gif','image/png' );
   return $s3_mime;
}

Thanks for your time, really helpful, and looks like it working.

Question though. I only want to upload video through S3, does the above mean that only video goes to S3, or only video gets uploaded period? I’m guessing all file extensions not specified go directly to the WP media library?

Final question. Is it possible to add in some kind of conditional statement to ring-fence only uploads from a Formidable Form (maybe the form’s ID?) to S3, with all other video uploads going directly to the WP Media Library.

Thanks again for your support – it’s been a huge help!

First of all,the above function means only the file extensions contained in the array goes to s3, your WP Media Library will work as normal,other file extensions will still go to your media library.

Secondly,concerning the Formidable Form, I have not used the plugin,and I did notice that the upload form field is part of the pro version of the plugin,so there is no way for me to go through the plugin codes and give you directions. Luckily for us,there is another useful hook provided by this s3 plugin.

as3cf_pre_update_attachment_metadata

this hook can be used to cancel upload to s3 for any reason, and this is where you can use your conditional statement..

Not sure if you’d know this, but would it be possible to use the ‘cancel’ hook you’ve referenced against ALL files uploaded directly to the media library (leaving the formidable form as the only method of uploading to S3? Not sure how this might look, but this is the solution i’m after.

I’ll get in touch with Formidable to see what hooks i could use to isolate their form.

Thanks in advance.

One quick question, when you upload media files using the formidable form, does wordpress process the file as a media attachment, can you see the file in the media library?.

I guess it must do, as I can see the file in my media library, however (as per other support thread) it’s actually sitting in my S3 bucket & delivered from S3.

What I need to do is stop this happening with all other uploads, as I’m trying to keep uploads from the formidable form in its own bucket. My understanding is from looking at the plugin, I can only specify a single bucket to upload to.

Hope that helps.

Ok ..,
This is what I suggest, if the formidable plugin adds an extra metadata info in the wp_postmeta table for the files it uploads, then all you have to do is check for that metadata info with an if condition inside that hook that cancel’s upload, you should be good.