/**
* Creates file input widget.
*
* @param string $fieldName Name of a field, in the form "modelname.fieldname"
* @param array $options Array of HTML attributes.
* @return string A generated file input.
* @link http://book.cakephp.org/3.0/en/views/helpers/form.html#creating-file-inputs
*/
public function file($fieldName, array $options = [])
{
if (!$this->_customFileInput || isset($options['default']) && $options['default']) {
return parent::file($fieldName, $options);
}
if (!isset($options['id'])) {
$options['id'] = $fieldName;
}
$options += ['secure' => true];
$options = $this->_initInputField($fieldName, $options);
unset($options['type']);
$countLabel = $this->_extractOption('count-label', $options, __('files selected'));
unset($options['count-label']);
$fileInput = $this->widget('file', array_merge($options, ['style' => 'display: none;', 'onchange' => "document.getElementById('" . $options['id'] . "-input').value = (this.files.length <= 1) ? this.files[0].name : this.files.length + ' ' + '" . $countLabel . "';"]));
$fakeInputCustomOptions = $this->_extractOption('_input', $options, []);
unset($options['_input']);
$fakeButtonCustomOptions = $this->_extractOption('_button', $options, []);
unset($options['_button']);
$fakeInput = $this->text($fieldName, array_merge($options, $fakeInputCustomOptions, ['readonly' => 'readonly', 'id' => $options['id'] . '-input', 'onclick' => "document.getElementById('" . $options['id'] . "').click();"]));
$buttonLabel = $this->_extractOption('button-label', $options, __('Choose File'));
unset($options['button-label']);
$fakeButton = $this->button($buttonLabel, array_merge($fakeButtonCustomOptions, ['type' => 'button', 'onclick' => "document.getElementById('" . $options['id'] . "').click();"]));
return $fileInput . $this->Html->div('input-group', $this->Html->div('input-group-btn', $fakeButton) . $fakeInput);
}