function template_preprocess_viewfield in Viewfield 8.3
Prepares variables for viewfield templates.
Default template: viewfield.html.twig.
Parameters
array $variables: An associative array containing:
- element: A render element representing the field.
- attributes: A string containing the attributes for the wrapping div.
- title_attributes: A string containing the attributes for the title.
See also
File
- ./
viewfield.module, line 90 - Defines an entity reference field type to display a view.
Code
function template_preprocess_viewfield(array &$variables) {
$element = $variables['element'];
// Creating variables for the template.
$variables['entity'] = $element['#entity'];
$variables['entity_type'] = $element['#entity_type'];
$variables['bundle'] = $element['#bundle'];
$variables['view_mode'] = $element['#view_mode'];
$variables['field_name'] = $element['#field_name'];
$variables['field_type'] = $element['#field_type'];
$variables['label_display'] = isset($element['#label_display']) ? $element['#label_display'] : NULL;
$variables['label_hidden'] = $variables['label_display'] == 'hidden';
// Always set the field label - allow themes to decide whether to display it.
// In addition the label should be rendered but hidden to support screen
// readers.
$variables['label'] = isset($element['#title']) ? $element['#title'] : NULL;
$variables['multiple'] = isset($element['#is_multiple']) ? $element['#is_multiple'] : NULL;
// Static $default_attributes;
// if (!isset($default_attributes)) {
// $default_attributes = new Attribute();
// }
// Merge attributes when a single-value field has a hidden label.
// if ($element['#label_display'] == 'hidden' && !$variables['multiple'] && !empty($element['#items'][0]->_attributes)) {
// $variables['attributes'] = NestedArray::mergeDeep($variables['attributes'], (array) $element['#items'][0]->_attributes);
// }
// We want other preprocess functions and the theme implementation to have
// fast access to the field item render arrays. The item render array keys
// (deltas) should always be numerically indexed starting from 0, and looping
// on those keys is faster than calling Element::children() or looping on all
// keys within $element, since that requires traversal of all element
// properties.
$variables['items'] = [];
$delta = 0;
while (!empty($element[$delta])) {
// $variables['items'][$delta]['content'] = $element[$delta];.
$variables['items'][$delta] = $element[$delta];
// Modules (e.g., rdf.module) can add field item attributes (to
// $item->_attributes) within hook_entity_prepare_view(). Some field
// formatters move those attributes into some nested formatter-specific
// element in order have them rendered on the desired HTML element (e.g., on
// the <a> element of a field item being rendered as a link). Other field
// formatters leave them within $element['#items'][$delta]['_attributes'] to
// be rendered on the item wrappers provided by field.html.twig.
// $variables['items'][$delta]['attributes'] = !empty($element['#items'][$delta]->_attributes) ? new Attribute($element['#items'][$delta]->_attributes) : clone($default_attributes);
$delta++;
}
}