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<?php
namespace Drupal\file_test\Form;
use Drupal\Core\Form\FormInterface;
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use Drupal\Core\Form\FormStateInterface;
/**
* File test form class.
*/
class FileTestForm implements FormInterface {
/**
* {@inheritdoc}
*/
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public function getFormId() {
return '_file_test_form';
}
/**
* {@inheritdoc}
*/
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public function buildForm(array $form, FormStateInterface $form_state) {
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$form['file_test_upload'] = array(
'#type' => 'file',
'#title' => t('Upload a file'),
);
$form['file_test_replace'] = array(
'#type' => 'select',
'#title' => t('Replace existing image'),
'#options' => array(
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'] = array(
'#type' => 'textfield',
'#title' => t('Subdirectory for test file'),
'#default_value' => '',
);
$form['extensions'] = array(
'#type' => 'textfield',
'#title' => t('Allowed extensions.'),
'#default_value' => '',
);
$form['allow_all_extensions'] = array(
'#type' => 'checkbox',
'#title' => t('Allow all extensions?'),
'#default_value' => FALSE,
);
$form['is_image_file'] = array(
'#type' => 'checkbox',
'#title' => t('Is this an image file?'),
'#default_value' => TRUE,
);
$form['submit'] = array(
'#type' => 'submit',
'#value' => t('Submit'),
);
return $form;
}
/**
* {@inheritdoc}
*/
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public function validateForm(array &$form, FormStateInterface $form_state) {}
/**
* {@inheritdoc}
*/
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public function submitForm(array &$form, FormStateInterface $form_state) {
// Process the upload and perform validation. Note: we're using the
// form value for the $replace parameter.
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if (!$form_state->isValueEmpty('file_subdir')) {
$destination = 'temporary://' . $form_state->getValue('file_subdir');
file_prepare_directory($destination, FILE_CREATE_DIRECTORY);
}
else {
$destination = FALSE;
}
// Setup validators.
$validators = array();
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if ($form_state->getValue('is_image_file')) {
$validators['file_validate_is_image'] = array();
}
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if ($form_state->getValue('allow_all_extensions')) {
$validators['file_validate_extensions'] = array();
}
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elseif (!$form_state->isValueEmpty('extensions')) {
$validators['file_validate_extensions'] = array($form_state->getValue('extensions'));
}
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// 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);
}
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$file = file_save_upload('file_test_upload', $validators, $destination, 0, $form_state->getValue('file_test_replace'));
if ($file) {
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$form_state->setValue('file_test_upload', $file);
drupal_set_message(t('File @filepath was uploaded.', array('@filepath' => $file->getFileUri())));
drupal_set_message(t('File name is @filename.', array('@filename' => $file->getFilename())));
drupal_set_message(t('File MIME type is @mimetype.', array('@mimetype' => $file->getMimeType())));