function template_preprocess_field_multiple_value_form in Zircon Profile 8
Same name and namespace in other branches
- 8.0 core/includes/theme.inc \template_preprocess_field_multiple_value_form()
Prepares variables for individual form element templates.
Default template: field-multiple-value-form.html.twig.
Combines multiple values into a table with drag-n-drop reordering.
Parameters
array $variables: An associative array containing:
- element: A render element representing the form element.
File
- core/
includes/ theme.inc, line 1560 - The theme system, which controls the output of Drupal.
Code
function template_preprocess_field_multiple_value_form(&$variables) {
$element = $variables['element'];
$variables['multiple'] = $element['#cardinality_multiple'];
if ($variables['multiple']) {
$table_id = Html::getUniqueId($element['#field_name'] . '_values');
$order_class = $element['#field_name'] . '-delta-order';
$header_attributes = new Attribute(array(
'class' => array(
'label',
),
));
if (!empty($element['#required'])) {
$header_attributes['class'][] = 'js-form-required';
$header_attributes['class'][] = 'form-required';
}
$header = array(
array(
'data' => array(
'#prefix' => '<h4' . $header_attributes . '>',
'title' => array(
'#markup' => $element['#title'],
),
'#suffix' => '</h4>',
),
'colspan' => 2,
'class' => array(
'field-label',
),
),
t('Order', array(), array(
'context' => 'Sort order',
)),
);
$rows = array();
// Sort items according to '_weight' (needed when the form comes back after
// preview or failed validation).
$items = array();
$variables['button'] = array();
foreach (Element::children($element) as $key) {
if ($key === 'add_more') {
$variables['button'] =& $element[$key];
}
else {
$items[] =& $element[$key];
}
}
usort($items, '_field_multiple_value_form_sort_helper');
// Add the items as table rows.
foreach ($items as $item) {
$item['_weight']['#attributes']['class'] = array(
$order_class,
);
// Remove weight form element from item render array so it can be rendered
// in a separate table column.
$delta_element = $item['_weight'];
unset($item['_weight']);
$cells = array(
array(
'data' => '',
'class' => array(
'field-multiple-drag',
),
),
array(
'data' => $item,
),
array(
'data' => $delta_element,
'class' => array(
'delta-order',
),
),
);
$rows[] = array(
'data' => $cells,
'class' => array(
'draggable',
),
);
}
$variables['table'] = array(
'#type' => 'table',
'#header' => $header,
'#rows' => $rows,
'#attributes' => array(
'id' => $table_id,
'class' => array(
'field-multiple-table',
),
),
'#tabledrag' => array(
array(
'action' => 'order',
'relationship' => 'sibling',
'group' => $order_class,
),
),
);
if (!empty($element['#description'])) {
$description_id = $element['#attributes']['aria-describedby'];
$description_attributes['id'] = $description_id;
$variables['description']['attributes'] = new Attribute($description_attributes);
$variables['description']['content'] = $element['#description'];
// Add the description's id to the table aria attributes.
$variables['table']['#attributes']['aria-describedby'] = $element['#attributes']['aria-describedby'];
}
}
else {
$variables['elements'] = array();
foreach (Element::children($element) as $key) {
$variables['elements'][] = $element[$key];
}
}
}