id()]['filename']['#suffix'] = ' (' . format_size($file->getSize()) . ') ';
}
$variables['element'] = $element;
// The "js-form-managed-file" class is required for proper Ajax functionality.
$variables['attributes'] = array('class' => array('file-widget', 'js-form-managed-file', 'form-managed-file', 'clearfix'));
}
/**
* Prepares variables for multi file form widget templates.
*
* Default template: file-widget-multiple.html.twig.
*
* @param array $variables
* An associative array containing:
* - element: A render element representing the widgets.
*/
function template_preprocess_file_widget_multiple(&$variables) {
$element = $variables['element'];
// Special ID and classes for draggable tables.
$weight_class = $element['#id'] . '-weight';
$table_id = $element['#id'] . '-table';
// Build up a table of applicable fields.
$headers = array();
$headers[] = t('File information');
if ($element['#display_field']) {
$headers[] = array(
'data' => t('Display'),
'class' => array('checkbox'),
);
}
$headers[] = t('Weight');
$headers[] = t('Operations');
// Get our list of widgets in order (needed when the form comes back after
// preview or failed validation).
$widgets = array();
foreach (Element::children($element) as $key) {
$widgets[] = &$element[$key];
}
usort($widgets, '_field_multiple_value_form_sort_helper');
$rows = array();
foreach ($widgets as $key => &$widget) {
// Save the uploading row for last.
if (empty($widget['#files'])) {
$widget['#title'] = $element['#file_upload_title'];
$widget['#description'] = \Drupal::service('renderer')->renderPlain($element['#file_upload_description']);
continue;
}
// Delay rendering of the buttons, so that they can be rendered later in the
// "operations" column.
$operations_elements = array();
foreach (Element::children($widget) as $sub_key) {
if (isset($widget[$sub_key]['#type']) && $widget[$sub_key]['#type'] == 'submit') {
hide($widget[$sub_key]);
$operations_elements[] = &$widget[$sub_key];
}
}
// Delay rendering of the "Display" option and the weight selector, so that
// each can be rendered later in its own column.
if ($element['#display_field']) {
hide($widget['display']);
}
hide($widget['_weight']);
// Render everything else together in a column, without the normal wrappers.
$widget['#theme_wrappers'] = array();
$information = drupal_render($widget);
$display = '';
if ($element['#display_field']) {
unset($widget['display']['#title']);
$display = array(
'data' => render($widget['display']),
'class' => array('checkbox'),
);
}
$widget['_weight']['#attributes']['class'] = array($weight_class);
$weight = render($widget['_weight']);
// Arrange the row with all of the rendered columns.
$row = array();
$row[] = $information;
if ($element['#display_field']) {
$row[] = $display;
}
$row[] = $weight;
// Show the buttons that had previously been marked as hidden in this
// preprocess function. We use show() to undo the earlier hide().
foreach (Element::children($operations_elements) as $key) {
show($operations_elements[$key]);
}
$row[] = array(
'data' => $operations_elements,
);
$rows[] = array(
'data' => $row,
'class' => isset($widget['#attributes']['class']) ? array_merge($widget['#attributes']['class'], array('draggable')) : array('draggable'),
);
}
$variables['table'] = array(
'#type' => 'table',
'#header' => $headers,
'#rows' => $rows,
'#attributes' => array(
'id' => $table_id,
),
'#tabledrag' => array(
array(
'action' => 'order',
'relationship' => 'sibling',
'group' => $weight_class,
),
),
'#access' => !empty($rows),
);
$variables['element'] = $element;
}
/**
* Prepares variables for file upload help text templates.
*
* Default template: file-upload-help.html.twig.
*
* @param array $variables
* An associative array containing:
* - description: The normal description for this field, specified by the
* user.
* - upload_validators: An array of upload validators as used in
* $element['#upload_validators'].
*/
function template_preprocess_file_upload_help(&$variables) {
$description = $variables['description'];
$upload_validators = $variables['upload_validators'];
$cardinality = $variables['cardinality'];
$descriptions = array();
if (!empty($description)) {
$descriptions[] = FieldFilteredString::create($description);
}
if (isset($cardinality)) {
if ($cardinality == -1) {
$descriptions[] = t('Unlimited number of files can be uploaded to this field.');
}
else {
$descriptions[] = \Drupal::translation()->formatPlural($cardinality, 'One file only.', 'Maximum @count files.');
}
}
if (isset($upload_validators['file_validate_size'])) {
$descriptions[] = t('!size limit.', array('!size' => format_size($upload_validators['file_validate_size'][0])));
}
if (isset($upload_validators['file_validate_extensions'])) {
$descriptions[] = t('Allowed types: @extensions.', array('@extensions' => $upload_validators['file_validate_extensions'][0]));
}
if (isset($upload_validators['file_validate_image_resolution'])) {
$max = $upload_validators['file_validate_image_resolution'][0];
$min = $upload_validators['file_validate_image_resolution'][1];
if ($min && $max && $min == $max) {
$descriptions[] = t('Images must be exactly @size pixels.', array('@size' => $max));
}
elseif ($min && $max) {
$descriptions[] = t('Images must be larger than @min pixels. Images larger than @max pixels will be resized.', array('@min' => $min, '@max' => $max));
}
elseif ($min) {
$descriptions[] = t('Images must be larger than @min pixels.', array('@min' => $min));
}
elseif ($max) {
$descriptions[] = t('Images larger than @max pixels will be resized.', array('@max' => $max));
}
}
$variables['descriptions'] = $descriptions;
}
/**
* Determine whether a field references files stored in {file_managed}.
*
* @param \Drupal\Core\Field\FieldDefinitionInterface $field
* A field definition.
*
* @return bool
* The field column if the field references {file_managed}.fid, typically
* fid, FALSE if it does not.
*/
function file_field_find_file_reference_column(FieldDefinitionInterface $field) {
$schema = $field->getFieldStorageDefinition()->getSchema();
foreach ($schema['foreign keys'] as $data) {
if ($data['table'] == 'file_managed') {
foreach ($data['columns'] as $field_column => $column) {
if ($column == 'fid') {
return $field_column;
}
}
}
}
return FALSE;
}