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<?php
namespace Drupal\file_test\Form;
use Drupal\Core\Form\FormInterface;
use Drupal\Core\Form\FormStateInterface;
/**
* File test form class.
*/
class FileTestForm implements FormInterface {
/**
* {@inheritdoc}
*/
public function getFormId() {
return '_file_test_form';
}
/**
* {@inheritdoc}
*/
public function buildForm(array $form, FormStateInterface $form_state) {
$form['file_test_upload'] = [
'#type' => 'file',
'#title' => t('Upload a file'),
];
$form['file_test_replace'] = [
'#type' => 'select',
'#title' => t('Replace existing image'),
'#options' => [
FILE_EXISTS_RENAME => t('Appends number until name is unique'),
FILE_EXISTS_REPLACE => t('Replace the existing file'),
FILE_EXISTS_ERROR => t('Fail with an error'),
],
'#default_value' => FILE_EXISTS_RENAME,
];
$form['file_subdir'] = [
'#type' => 'textfield',
'#title' => t('Subdirectory for test file'),
'#default_value' => '',
];
$form['extensions'] = [
'#type' => 'textfield',
'#title' => t('Allowed extensions.'),
'#default_value' => '',
];
$form['allow_all_extensions'] = [
'#type' => 'checkbox',
'#title' => t('Allow all extensions?'),
'#default_value' => FALSE,
];
$form['is_image_file'] = [
'#type' => 'checkbox',
'#title' => t('Is this an image file?'),
'#default_value' => TRUE,
];
$form['submit'] = [
'#type' => 'submit',
'#value' => t('Submit'),
];
return $form;
}
/**
* {@inheritdoc}
*/
public function validateForm(array &$form, FormStateInterface $form_state) {}
/**
* {@inheritdoc}
*/
public function submitForm(array &$form, FormStateInterface $form_state) {
// Process the upload and perform validation. Note: we're using the
// form value for the $replace parameter.
if (!$form_state->isValueEmpty('file_subdir')) {
$destination = 'temporary://' . $form_state->getValue('file_subdir');
file_prepare_directory($destination, FILE_CREATE_DIRECTORY);
}
else {
$destination = FALSE;
}
// Setup validators.
$validators = [];
if ($form_state->getValue('is_image_file')) {
$validators['file_validate_is_image'] = [];
}
if ($form_state->getValue('allow_all_extensions')) {
$validators['file_validate_extensions'] = [];
}
elseif (!$form_state->isValueEmpty('extensions')) {
$validators['file_validate_extensions'] = [$form_state->getValue('extensions')];
}
// The test for drupal_move_uploaded_file() triggering a warning is
// unavoidable. We're interested in what happens afterwards in
// file_save_upload().
if (\Drupal::state()->get('file_test.disable_error_collection')) {
define('SIMPLETEST_COLLECT_ERRORS', FALSE);
}
$file = file_save_upload('file_test_upload', $validators, $destination, 0, $form_state->getValue('file_test_replace'));
if ($file) {
$form_state->setValue('file_test_upload', $file);
drupal_set_message(t('File @filepath was uploaded.', ['@filepath' => $file->getFileUri()]));
drupal_set_message(t('File name is @filename.', ['@filename' => $file->getFilename()]));
drupal_set_message(t('File MIME type is @mimetype.', ['@mimetype' => $file->getMimeType()]));
drupal_set_message(t('You WIN!'));
}
elseif ($file === FALSE) {
drupal_set_message(t('Epic upload FAIL!'), 'error');
}
}
}
|
