image_upload validation error - Support Fourms

This topic has 14 replies, 2 voices, and was last updated 1 year, 12 months ago by Anh Tran.

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May 12, 2019 at 1:23 PM #14509

Resolved baraanajjar@gmail.com
Participant

hi i am using image_upload on front end form when i add image in image_upload field and then submit it still shows field is required while i added image .
waiting for reply..
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May 13, 2019 at 9:25 AM #14517

Anh Tran
Keymaster

Thanks for letting me know. Let me check it.

May 14, 2019 at 9:03 AM #14534

Anh Tran
Keymaster

I've just checked the field and I don't see the problem. Can you give me more details? What's the code for the meta box?

May 14, 2019 at 12:40 PM #14541
baraanajjar@gmail.com
Participant
Hi please check the following code
```
array(
                'id'               => 'gallery_upload',
                'name'             => esc_html__( 'Image Upload', 'your-prefix' ),
                'type'             => 'image_upload',
                'admin_columns' => 'before title',
                'required'   => true,
                // Delete image from Media Library when remove it from post meta?
                // Note: it might affect other posts if you use same image for multiple posts
                'force_delete'     => true,
                // Maximum image uploads
                'max_file_uploads' => 5,
                // Display the "Uploaded 1/2 files" status
                'max_status'       => true,
            ),
```
May 14, 2019 at 1:57 PM #14546
baraanajjar@gmail.com
Participant
metabox code
```
$meta_boxes[] = array(
        'id' => 'submit_listing',
        'title' => esc_html__( 'Submit Listing' ),
        'post_types' => array('listing' ),
        'context' => 'advanced',
        'priority' => 'high',
        'autosave' => 'true',
        'validation' => array(
        'rules'  => array(
       'post_title'=> array(
    'required'  => true,

),

'gallery_upload' => array(
   'required'  => true,

),

// Rules for other fields
),
/////////////////////////
// Optional override of default error messages

'messages' => array(
'gallery_upload' => array(
    'required'  => 'Please Upload Images',

),
```
)
May 15, 2019 at 9:21 AM #14562

Anh Tran
Keymaster

I got it. Thanks for your code.

This problem is expected behavior because the validation module doesn't support image_upload. The fields image_upload, image_advanced works differently from other fields since they use the Media Library and thus, the validation can't inject into the process.

May 15, 2019 at 12:39 PM #14566

baraanajjar@gmail.com
Participant

Hi Anh Tran
Ok how to solve this validation for image upload is very important. Can you provide any quick solution thanks

May 16, 2019 at 9:31 AM #14580

Anh Tran
Keymaster

I'm very sorry, but I don't have a quick solution for that at the moment.

May 16, 2019 at 3:46 PM #14583

baraanajjar@gmail.com
Participant

Ok so when updating the module to add this validation in future release..?

May 16, 2019 at 3:50 PM #14584

baraanajjar@gmail.com
Participant

Hi Anh Tran Can we validate after form submit using php backend validation if the image field is empty
in-case as the front validation not works
thanks

May 17, 2019 at 4:32 PM #14611
Anh Tran
Keymaster
Can we validate after form submit using php backend validation if the image field is empty in-case as the front validation not works

Yes, you can do that. Here is a simple code that check for the field value before processing the form, and if it fails, redirect users to an error page:
```
add_filter( 'rwmb_frontend_validate', function( $is_valid, $config ) {
    if ( 'meta-box-id' !== $config['id'] ) {
        return $is_valid;
    }
    if ( empty( $_POST['image_upload_field'] ) ) {
        $is_valid = false;
    }
    return $is_valid;
}, 10, 2 );
```
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