Problem:
The user would like to validate an image field(repeatable) in a Toolset form for the image type, size, dimensions, and number of images
Solution:
This will require custom code. Check this example code:
add_action('cred_form_validate', 'my_image_validation_func',10,2); function my_image_validation_func($error_fields, $form_data) { // all the valid file types $file_types = array('image/jpeg','image/png','image/jpg'); $max_size = 5 * 1024 * 1024; $forms = array( 1806 ); // Field data are field values and errors list($fields,$errors)=$error_fields; if (in_array($form_data['id'], $forms ) && (isset($_FILES['wpcf-book-images']['type']))) { // 1. Minimum number of photos is '3'. if ( count( $_FILES['wpcf-book-images']['name'] ) < 3 ) { $errors['wpcf-book-images'] = 'Add at least 3 images'; return array( $fields, $errors ); } // 2. Dimensions of the photo should be at least 350 (height) x 350 (width). foreach ( $_FILES['wpcf-book-images']['tmp_name'] as $tmp_image ) { $sizes = getimagesize( $tmp_image ); if ( $sizes[0] < 350 || $sizes[1] < 350 ) { $errors['wpcf-book-images'] = 'An image is too small. Images should be at least 350x350'; return array( $fields, $errors ); } } // 3. The file types should be JPG, PNG and JPEG. foreach ( $_FILES['wpcf-book-images']['type'] as $type ) { if ( !in_array( $type, $file_types ) ) { $errors['wpcf-book-images'] = 'Image file type is not supported: ' . $type; return array( $fields, $errors ); } } // 4. Maximum file size should be 5MB. foreach ( $_FILES['wpcf-book-images']['size'] as $size ) { if ( $size >= $max_size ) { $errors['wpcf-book-images'] = 'An Image is too big. Images should less than 5MB'; return array( $fields, $errors ); } } } //return result return array($fields,$errors); }
Relevant Documentation:
https://toolset.com/documentation/programmer-reference/cred-api/#cred_form_validate
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This topic contains 19 replies, has 3 voices.
Last updated by 3 years, 6 months ago.
Assisted by: Jamal.