Validate file extensions and file size on Drupal 7 file field using the form API

Validate file extensions and file size on Drupal 7 file field using the form API

Content Index :

Validate file extensions and file size on Drupal 7 file field using the form API
Tag : forms , By : Edo
Date : November 28 2020, 08:01 AM

No Comments Right Now !

Boards Message :
You Must Login Or Sign Up to Add Your Comments .

Share : facebook icon twitter icon

how to validate file size while uploading in Drupal 6

Tag : drupal , By : Robin Buitenhuis
Date : March 29 2020, 07:55 AM
it helps some times You can use file_validate_size() to check the file's size before calling file_save_upload()
Here are a few examples of these functions in use:

Drupal 7 - how to allow file extensions for field

Tag : drupal , By : mobi phil
Date : March 29 2020, 07:55 AM
I wish did fix the issue. Oke, I was having this problem for the last three days. Now after a few hours after I posted this question I solved the problem.
For those who have the same question or problem here is what solved it for me and what the right way is to add settings. The settings can be different for each instance so the settings go at the instance creation and not the field itself.
$instance = array(
    'field_name'    => 'file'
    'entity_type'   => 'node',
    'bundle'        => 'article',
    'label'         => 'Attachment',
    'description'   => 'Add an attachment here',
    'required'      => TRUE,
    'settings'      => array(
         'max_filesize'    => '512',
         'file_extensions' => 'zip txt pdf docx'

Drupal 7.31 custom file field and it's extensions

Tag : file , By : Zelos
Date : March 29 2020, 07:55 AM
seems to work fine The answer is to change value of file_extensions to jpg png gif pdf zip doc rtf xdoc rar txt.

Validate File Extension IN Drupal 8 Entity Form

Tag : forms , By : nemof
Date : March 29 2020, 07:55 AM
this one helps. I got the answer after digging drupal 8 core APIs. If we're using a file field, then we can set the "file_extensions" setting. You can find out more information about a "file" type by going to the FileItem API.
$fields['my_new_file'] = BaseFieldDefinition::create('file')
   ->setSetting('file_extensions', 'xls xlsx');

VueJS - Validate file size requirement in form file upload

Tag : javascript , By : Janko
Date : March 29 2020, 07:55 AM
this will help Here's a generic Vue example of how to validate the file's size before the form is submitted.
The crux is obtaining the file object from the files property on the input itself, and checking the file's size via the size property; the rest is just stuff related to preventing the form from being submitted if the validation fails.
new Vue({
  el: '#app',
  methods: {
    onSubmit(e) {
      const file = this.$refs.file.files[0];
      if (!file) {
        alert('No file chosen');
      if (file.size > 1024 * 1024) {
        alert('File too big (> 1MB)');
      alert('File OK');
<script src="https://rawgit.com/vuejs/vue/dev/dist/vue.js"></script>

<div id="app">
  <form @submit="onSubmit">
    <input type="file" ref="file">
    <button type="submit">Submit</button>
Related Posts Related QUESTIONS :
  • codeigniter and form action trailing / issue?
  • Is there a Drupal module for Forms with powerful CRUD style behaviour?
  • Xamarin.Forms Help loading Images from Url/Uri directly from viewmodel
  • extending sonata user bundle with more form fields, get Could not load type "Application\Sonata\UserBundle\Form\Reg
  • dynamic add form field in flutter
  • Using a Pagerfanta/ non ArrayAccess list in a bulk form
  • how to bind dictionary to Listview itemsource
  • Can the values in local storage be used to verify age?
  • Play how to implement an implicit Writes or Format for a case class including an Enumeration
  • Make Perl script work in both Perl 5 and 6
  • Mautic form getting stuck on "Please Wait"
  • Multiple form in the same ctp file with same controller in cakephp 3
  • Flutter - issue sending form post with child map attribute
  • Memory Leak on Delphi Form Controlls
  • Is there a way to load a form programatically from the dfm
  • Multiple form inputs for the same field
  • Double textarea? Symfony 2 with FOSU
  • Symfony2 form repeated field - how to move 'not matching' message to confirm field?
  • how to change the size property of a form text input?
  • Laravel 5 Fatal Error HtmlServiceProvider
  • Turn off pluralization of class names in cakephp
  • Require that form fields are filled before saving a record
  • webapp form value to spreadsheet
  • Google Form - One form submission sends two (unique) emails
  • Validate only parts of a form
  • ContextErrorException when submit form with A2lix
  • ZF2: Trying to understand Zend\Form
  • Form inputs in one line
  • Images upload form laravel
  • [Spring MVC - Thymeleaf]- Form validation and error messages
  • Magento - send copy of message from contact form to sender
  • React checkbox. DRY out onChange function to handle all checkboxes
  • Laravel 5.7: File upload form not working properly
  • Unable to override Sonata User Bundle registration form
  • symfony form generate not expected placeholder element
  • symfony form choice with entity get result
  • Could not find implicit value for parameter messages
  • Prefilling "Outlook form " programatically on server before user downloads it
  • Display repeated field type in Symfony2
  • Laravel Form: Input Button Not Showing HTML Icon
  • How to have one form with multiple actions
  • Orchard Dynamic Forms - there is not Form Widget available to use
  • Symfony form binding issue: empty array
  • Powershell: Updating GUI from background job results
  • Round about Form Copying
  • Drupal: set id attribute in multi-step form
  • 2019, Chrome 76, approach to autocomplete off
  • ColdFusion Form with action ="/"
  • shadow
    Privacy Policy - Terms - Contact Us © scrbit.com