class Weight
Same name in other branches
- 9 core/lib/Drupal/Core/Render/Element/Weight.php \Drupal\Core\Render\Element\Weight
- 8.9.x core/lib/Drupal/Core/Render/Element/Weight.php \Drupal\Core\Render\Element\Weight
- 10 core/lib/Drupal/Core/Render/Element/Weight.php \Drupal\Core\Render\Element\Weight
Provides a form element for input of a weight.
Weights are integers used to indicate ordering, with larger numbers later in the order.
Properties:
- #delta: The range of possible weight values used. A delta of 10 would indicate possible weight values between -10 and 10.
Usage example:
$form['weight'] = [
'#type' => 'weight',
'#title' => $this->t('Weight'),
'#default_value' => $edit['weight'],
'#delta' => 10,
];Hierarchy
- class \Drupal\Component\Plugin\PluginBase implements \Drupal\Component\Plugin\PluginInspectionInterface, \Drupal\Component\Plugin\DerivativeInspectionInterface
- class \Drupal\Core\Plugin\PluginBase extends \Drupal\Component\Plugin\PluginBase uses \Drupal\Core\StringTranslation\StringTranslationTrait, \Drupal\Core\DependencyInjection\DependencySerializationTrait, \Drupal\Core\Messenger\MessengerTrait
- class \Drupal\Core\Render\Element\RenderElementBase extends \Drupal\Core\Plugin\PluginBase implements \Drupal\Core\Render\Element\ElementInterface
- class \Drupal\Core\Render\Element\FormElementBase extends \Drupal\Core\Render\Element\RenderElementBase implements \Drupal\Core\Render\Element\FormElementInterface
- class \Drupal\Core\Render\Element\Weight extends \Drupal\Core\Render\Element\FormElementBase
- class \Drupal\Core\Render\Element\FormElementBase extends \Drupal\Core\Render\Element\RenderElementBase implements \Drupal\Core\Render\Element\FormElementInterface
- class \Drupal\Core\Render\Element\RenderElementBase extends \Drupal\Core\Plugin\PluginBase implements \Drupal\Core\Render\Element\ElementInterface
- class \Drupal\Core\Plugin\PluginBase extends \Drupal\Component\Plugin\PluginBase uses \Drupal\Core\StringTranslation\StringTranslationTrait, \Drupal\Core\DependencyInjection\DependencySerializationTrait, \Drupal\Core\Messenger\MessengerTrait
Expanded class hierarchy of Weight
1 file declares its use of Weight
- WeightTest.php in core/
tests/ Drupal/ KernelTests/ Core/ Render/ Element/ WeightTest.php
177 string references to 'Weight'
- block.schema.yml in core/
modules/ block/ config/ schema/ block.schema.yml - core/modules/block/config/schema/block.schema.yml
- block.schema.yml in core/
modules/ block/ config/ schema/ block.schema.yml - core/modules/block/config/schema/block.schema.yml
- BlockCreationTrait::placeBlock in core/
modules/ block/ tests/ src/ Traits/ BlockCreationTrait.php - Creates a block instance based on default settings.
- BlockDependenciesTest::createBlock in core/
modules/ views/ tests/ src/ Kernel/ Plugin/ BlockDependenciesTest.php - Creates a block instance based on default settings.
- BlockForm::form in core/
modules/ block/ src/ BlockForm.php
File
-
core/
lib/ Drupal/ Core/ Render/ Element/ Weight.php, line 28
Namespace
Drupal\Core\Render\ElementView source
class Weight extends FormElementBase {
/**
* {@inheritdoc}
*/
public function getInfo() {
$class = static::class;
return [
'#input' => TRUE,
'#delta' => 10,
'#default_value' => 0,
'#process' => [
[
$class,
'processWeight',
],
[
$class,
'processAjaxForm',
],
],
];
}
/**
* Expands a weight element into a select/number element.
*/
public static function processWeight(&$element, FormStateInterface $form_state, &$complete_form) {
// If the number of options is small enough, use a select field. Otherwise,
// use a number field.
$type = $element['#delta'] <= \Drupal::config('system.site')->get('weight_select_max') ? 'select' : 'number';
$element = array_merge($element, \Drupal::service('element_info')->getInfo($type));
$element['#is_weight'] = TRUE;
if ($type === 'select') {
$weights = [];
for ($n = -1 * $element['#delta']; $n <= $element['#delta']; $n++) {
$weights[$n] = $n;
}
$default_value = (int) $element['#default_value'];
if (!isset($weights[$default_value])) {
$weights[$default_value] = $default_value;
ksort($weights);
}
$element['#options'] = $weights;
}
else {
// Use a field big enough to fit most weights.
$element['#size'] = 10;
}
return $element;
}
}Members
| Title Sort descending | Modifiers | Object type | Summary | Overriden Title | Overrides |
|---|---|---|---|---|---|
| FormElementBase::processAutocomplete | public static | function | Adds autocomplete functionality to elements. | 1 | |
| FormElementBase::processPattern | public static | function | #process callback for #pattern form element property. | 1 | |
| FormElementBase::validatePattern | public static | function | #element_validate callback for #pattern form element property. | 1 | |
| FormElementBase::valueCallback | public static | function | Overrides FormElementInterface::valueCallback | 17 | |
| PluginInspectionInterface::getPluginDefinition | public | function | Gets the definition of the plugin implementation. | 6 | |
| PluginInspectionInterface::getPluginId | public | function | Gets the plugin ID of the plugin instance. | 2 | |
| RenderElementBase::preRenderAjaxForm | public static | function | Adds Ajax information about an element to communicate with JavaScript. | 2 | |
| RenderElementBase::preRenderGroup | public static | function | Adds members of this group as actual elements for rendering. | 2 | |
| RenderElementBase::processAjaxForm | public static | function | Form element processing handler for the #ajax form property. | 3 | |
| RenderElementBase::processGroup | public static | function | Arranges elements into groups. | 2 | |
| RenderElementBase::setAttributes | public static | function | Overrides ElementInterface::setAttributes | 2 | |
| Weight::getInfo | public | function | Overrides ElementInterface::getInfo | ||
| Weight::processWeight | public static | function | Expands a weight element into a select/number element. |
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