public static FieldUiTable::tablePreRender($elements)
Performs pre-render tasks on field_ui_table elements.
Parameters
array $elements: A structured array containing two sub-levels of elements. Properties used:
- #tabledrag: The value is a list of $options arrays that are passed to drupal_attach_tabledrag(). The HTML ID of the table is added to each $options array.
Return value
array The $element with prepared variables ready for field-ui-table.html.twig.
See also
\Drupal\Core\Render\Element\Table::preRenderTable()
File
- core/modules/field_ui/src/Element/FieldUiTable.php, line 44
Class
- FieldUiTable
- Provides a field_ui table element.
Namespace
Drupal\field_ui\Element
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 | public static function tablePreRender($elements) { $js_settings = array(); // For each region, build the tree structure from the weight and parenting // data contained in the flat form structure, to determine row order and // indentation. $regions = $elements['#regions']; $tree = ['' => ['name' => '', 'children' => []]]; $trees = array_fill_keys(array_keys($regions), $tree); $parents = []; $children = Element::children($elements); $list = array_combine($children, $children); // Iterate on rows until we can build a known tree path for all of them. while ($list) { foreach ($list as $name) { $row = &$elements[$name]; $parent = $row['parent_wrapper']['parent']['#value']; // Proceed if parent is known. if (empty($parent) || isset($parents[$parent])) { // Grab parent, and remove the row from the next iteration. $parents[$name] = $parent ? array_merge($parents[$parent], [$parent]) : []; unset($list[$name]); // Determine the region for the row. $region_name = call_user_func($row['#region_callback'], $row); // Add the element in the tree. $target = &$trees[$region_name]['']; foreach ($parents[$name] as $key) { $target = &$target['children'][$key]; } $target['children'][$name] = ['name' => $name, 'weight' => $row['weight']['#value']]; // Add tabledrag indentation to the first row cell. if ($depth = count($parents[$name])) { $children = Element::children($row); $cell = current($children); $indentation = [ '#theme' => 'indentation', '#size' => $depth, '#suffix' => isset($row[$cell]['#prefix']) ? $row[$cell]['#prefix'] : '', ]; $row[$cell]['#prefix'] = \Drupal::service('renderer')->render($indentation); } // Add row id and associate JS settings. $id = Html::getClass($name); $row['#attributes']['id'] = $id; if (isset($row['#js_settings'])) { $row['#js_settings'] += [ 'rowHandler' => $row['#row_type'], 'name' => $name, 'region' => $region_name, ]; $js_settings[$id] = $row['#js_settings']; } } } } // Determine rendering order from the tree structure. foreach ($regions as $region_name => $region) { $elements['#regions'][$region_name]['rows_order'] = array_reduce($trees[$region_name], [static::class, 'reduceOrder']); } $elements['#attached']['drupalSettings']['fieldUIRowsData'] = $js_settings; // If the custom #tabledrag is set and there is a HTML ID, add the table's // HTML ID to the options and attach the behavior. // @see \Drupal\Core\Render\Element\Table::preRenderTable() if (!empty($elements['#tabledrag']) && isset($elements['#attributes']['id'])) { foreach ($elements['#tabledrag'] as $options) { $options['table_id'] = $elements['#attributes']['id']; drupal_attach_tabledrag($elements, $options); } } return $elements;} |
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