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class MysqlDate in Views Custom Table 8

Same name in this branch
  1. 8 src/Plugin/views/filter/MysqlDate.php \Drupal\view_custom_table\Plugin\views\filter\MysqlDate
  2. 8 src/Plugin/views/field/MysqlDate.php \Drupal\view_custom_table\Plugin\views\field\MysqlDate
Same name and namespace in other branches
  1. 9.0.x src/Plugin/views/field/MysqlDate.php \Drupal\view_custom_table\Plugin\views\field\MysqlDate

A handler to provide a field that is completely custom by the administrator.

Plugin annotation

@ViewsField("mysql_date");

Hierarchy

Expanded class hierarchy of MysqlDate

File

src/Plugin/views/field/MysqlDate.php, line 19

Namespace

Drupal\view_custom_table\Plugin\views\field
View source 
class MysqlDate extends FieldPluginBase {

  /**
   * The date formatter service.
   *
   * @var \Drupal\Core\Datetime\DateFormatterInterface
   */
  protected $dateFormatter;

  /**
   * The date format storage.
   *
   * @var \Drupal\Core\Entity\EntityStorageInterface
   */
  protected $dateFormatStorage;

  /**
   * Constructs a new Date object.
   *
   * @param array $configuration
   *   A configuration array containing information about the plugin instance.
   * @param string $plugin_id
   *   The plugin ID for the plugin instance.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   * @param \Drupal\Core\Datetime\DateFormatterInterface $date_formatter
   *   The date formatter service.
   * @param \Drupal\Core\Entity\EntityStorageInterface $date_format_storage
   *   The date format storage.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, DateFormatterInterface $date_formatter, EntityStorageInterface $date_format_storage) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
    $this->dateFormatter = $date_formatter;
    $this->dateFormatStorage = $date_format_storage;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static($configuration, $plugin_id, $plugin_definition, $container
      ->get('date.formatter'), $container
      ->get('entity.manager')
      ->getStorage('date_format'));
  }

  /**
   * {@inheritdoc}
   */
  protected function defineOptions() {
    $options = parent::defineOptions();
    $options['date_format'] = [
      'default' => 'small',
    ];
    $options['custom_date_format'] = [
      'default' => '',
    ];
    $options['timezone'] = [
      'default' => '',
    ];
    return $options;
  }

  /**
   * {@inheritdoc}
   */
  public function buildOptionsForm(&$form, FormStateInterface $form_state) {
    $date_formats = [];
    foreach ($this->dateFormatStorage
      ->loadMultiple() as $machine_name => $value) {
      $date_formats[$machine_name] = $this
        ->t('@name format: @date', [
        '@name' => $value
          ->label(),
        '@date' => $this->dateFormatter
          ->format(REQUEST_TIME, $machine_name),
      ]);
    }
    $form['date_format'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Date format'),
      '#options' => $date_formats + [
        'custom' => $this
          ->t('Custom'),
        'raw time ago' => $this
          ->t('Time ago'),
        'time ago' => $this
          ->t('Time ago (with "ago" appended)'),
        'raw time hence' => $this
          ->t('Time hence'),
        'time hence' => $this
          ->t('Time hence (with "hence" appended)'),
        'raw time span' => $this
          ->t('Time span (future dates have "-" prepended)'),
        'inverse time span' => $this
          ->t('Time span (past dates have "-" prepended)'),
        'time span' => $this
          ->t('Time span (with "ago/hence" appended)'),
      ],
      '#default_value' => isset($this->options['date_format']) ? $this->options['date_format'] : 'small',
    ];
    $form['custom_date_format'] = [
      '#type' => 'textfield',
      '#title' => $this
        ->t('Custom date format'),
      '#description' => $this
        ->t('If "Custom", see <a href="http://us.php.net/manual/en/function.date.php" target="_blank">the PHP docs</a> for date formats. Otherwise, enter the number of different time units to display, which defaults to 2.'),
      '#default_value' => isset($this->options['custom_date_format']) ? $this->options['custom_date_format'] : '',
    ];
    $customDateFormat = [
      'custom',
      'raw time ago',
      'time ago',
      'raw time hence',
      'time hence',
      'raw time span',
      'time span',
      'raw time span',
      'inverse time span',
      'time span',
    ];
    foreach ($customDateFormat as $custom_date_possible) {
      $form['custom_date_format']['#states']['visible'][] = [
        ':input[name="options[date_format]"]' => [
          'value' => $custom_date_possible,
        ],
      ];
    }
    $form['timezone'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Timezone'),
      '#description' => $this
        ->t('Timezone to be used for date output.'),
      '#options' => [
        '' => $this
          ->t('- Default site/user timezone -'),
      ] + system_time_zones(FALSE, TRUE),
      '#default_value' => $this->options['timezone'],
    ];
    foreach (array_merge([
      'custom',
    ], array_keys($date_formats)) as $timezone_date_formats) {
      $form['timezone']['#states']['visible'][] = [
        ':input[name="options[date_format]"]' => [
          'value' => $timezone_date_formats,
        ],
      ];
    }
    parent::buildOptionsForm($form, $form_state);
  }

  /**
   * {@inheritdoc}
   */
  public function render(ResultRow $values) {
    $date_value = $this
      ->getValue($values);
    $value = strtotime($date_value);
    $format = $this->options['date_format'];
    $customDateFormat = [
      'custom',
      'raw time ago',
      'time ago',
      'raw time hence',
      'time hence',
      'raw time span',
      'time span',
      'raw time span',
      'inverse time span',
      'time span',
    ];
    if (in_array($format, $customDateFormat)) {
      $custom_format = $this->options['custom_date_format'];
    }
    if ($value) {
      $timezone = !empty($this->options['timezone']) ? $this->options['timezone'] : NULL;

      // Will be positive for a datetime in the past (ago), and negative for a
      // datetime in the future (hence).
      $time_diff = REQUEST_TIME - $value;
      switch ($format) {
        case 'raw time ago':
          return $this->dateFormatter
            ->formatTimeDiffSince($value, [
            'granularity' => is_numeric($custom_format) ? $custom_format : 2,
          ]);
        case 'time ago':
          return $this
            ->t('%time ago', [
            '%time' => $this->dateFormatter
              ->formatTimeDiffSince($value, [
              'granularity' => is_numeric($custom_format) ? $custom_format : 2,
            ]),
          ]);
        case 'raw time hence':
          return $this->dateFormatter
            ->formatTimeDiffUntil($value, [
            'granularity' => is_numeric($custom_format) ? $custom_format : 2,
          ]);
        case 'time hence':
          return $this
            ->t('%time hence', [
            '%time' => $this->dateFormatter
              ->formatTimeDiffUntil($value, [
              'granularity' => is_numeric($custom_format) ? $custom_format : 2,
            ]),
          ]);
        case 'raw time span':
          return ($time_diff < 0 ? '-' : '') . $this->dateFormatter
            ->formatTimeDiffSince($value, [
            'strict' => FALSE,
            'granularity' => is_numeric($custom_format) ? $custom_format : 2,
          ]);
        case 'inverse time span':
          return ($time_diff > 0 ? '-' : '') . $this->dateFormatter
            ->formatTimeDiffSince($value, [
            'strict' => FALSE,
            'granularity' => is_numeric($custom_format) ? $custom_format : 2,
          ]);
        case 'time span':
          $time = $this->dateFormatter
            ->formatTimeDiffSince($value, [
            'strict' => FALSE,
            'granularity' => is_numeric($custom_format) ? $custom_format : 2,
          ]);
          return $time_diff < 0 ? $this
            ->t('%time hence', [
            '%time' => $time,
          ]) : $this
            ->t('%time ago', [
            '%time' => $time,
          ]);
        case 'custom':
          if ($custom_format == 'r') {
            return format_date($value, $format, $custom_format, $timezone, 'en');
          }
          return format_date($value, $format, $custom_format, $timezone);
        default:
          return format_date($value, $format, '', $timezone);
      }
    }
  }

}

Members

Namesort descending Modifiers Type Description Overrides
DependencySerializationTrait::$_entityStorages protected property An array of entity type IDs keyed by the property name of their storages.
DependencySerializationTrait::$_serviceIds protected property An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep public function 1
DependencySerializationTrait::__wakeup public function 2
FieldPluginBase::$additional_fields public property Stores additional fields which get added to the query.
FieldPluginBase::$aliases public property
FieldPluginBase::$field_alias public property
FieldPluginBase::$lastRenderIndex protected property Keeps track of the last render index.
FieldPluginBase::$linkGenerator protected property The link generator.
FieldPluginBase::$original_value public property The field value prior to any rewriting.
FieldPluginBase::$renderer protected property Stores the render API renderer. Overrides PluginBase::$renderer 1
FieldPluginBase::addAdditionalFields protected function Add 'additional' fields to the query.
FieldPluginBase::addSelfTokens protected function Add any special tokens this field might use for itself. 4
FieldPluginBase::adminLabel public function Return a string representing this handler's name in the UI. Overrides HandlerBase::adminLabel
FieldPluginBase::adminSummary public function Provide extra data to the administration form Overrides HandlerBase::adminSummary
FieldPluginBase::advancedRender public function Renders a field using advanced settings. Overrides FieldHandlerInterface::advancedRender
FieldPluginBase::allowAdvancedRender protected function Determine if this field can allow advanced rendering.
FieldPluginBase::clickSort public function Adds an ORDER BY clause to the query for click sort columns. Overrides FieldHandlerInterface::clickSort 1
FieldPluginBase::clickSortable public function Determines if this field is click sortable. Overrides FieldHandlerInterface::clickSortable 5
FieldPluginBase::documentSelfTokens protected function Document any special tokens this field might use for itself. 3
FieldPluginBase::elementClasses public function Returns the class of the field. Overrides FieldHandlerInterface::elementClasses
FieldPluginBase::elementLabelClasses public function Returns the class of the field's label. Overrides FieldHandlerInterface::elementLabelClasses
FieldPluginBase::elementLabelType public function Returns an HTML element for the label based upon the field's element type. Overrides FieldHandlerInterface::elementLabelType
FieldPluginBase::elementType public function Returns an HTML element based upon the field's element type. Overrides FieldHandlerInterface::elementType 1
FieldPluginBase::elementWrapperClasses public function Returns the class of the field's wrapper. Overrides FieldHandlerInterface::elementWrapperClasses
FieldPluginBase::elementWrapperType public function Returns an HTML element for the wrapper based upon the field's element type. Overrides FieldHandlerInterface::elementWrapperType
FieldPluginBase::getElements public function Provides a list of elements valid for field HTML. Overrides FieldHandlerInterface::getElements
FieldPluginBase::getEntity public function Gets the entity matching the current row and relationship. Overrides FieldHandlerInterface::getEntity
FieldPluginBase::getFieldTokenPlaceholder protected function Returns a token placeholder for the current field.
FieldPluginBase::getPreviousFieldLabels protected function Returns all field labels of fields before this field.
FieldPluginBase::getRenderer protected function Returns the render API renderer. Overrides PluginBase::getRenderer
FieldPluginBase::getRenderTokens public function Gets the 'render' tokens to use for advanced rendering. Overrides FieldHandlerInterface::getRenderTokens
FieldPluginBase::getTokenValuesRecursive protected function Recursive function to add replacements for nested query string parameters.
FieldPluginBase::getValue public function Gets the value that's supposed to be rendered. Overrides FieldHandlerInterface::getValue 2
FieldPluginBase::init public function Initialize the plugin. Overrides HandlerBase::init 14
FieldPluginBase::isValueEmpty public function Checks if a field value is empty. Overrides FieldHandlerInterface::isValueEmpty
FieldPluginBase::label public function Gets this field's label. Overrides FieldHandlerInterface::label
FieldPluginBase::linkGenerator protected function Gets the link generator.
FieldPluginBase::postRender public function Runs after every field has been rendered. Overrides FieldHandlerInterface::postRender
FieldPluginBase::preRender public function Runs before any fields are rendered. Overrides FieldHandlerInterface::preRender 10
FieldPluginBase::query public function Called to add the field to a query. Overrides HandlerBase::query 20
FieldPluginBase::renderAltered protected function Render this field as user-defined altered text.
FieldPluginBase::renderAsLink protected function Render this field as a link, with the info from a fieldset set by the user.
FieldPluginBase::renderText public function Performs an advanced text render for the item. Overrides FieldHandlerInterface::renderText
FieldPluginBase::renderTrimText protected function Trims the field down to the specified length.
FieldPluginBase::RENDER_TEXT_PHASE_COMPLETELY constant Indicator of the renderText() method for rendering the whole element. (if no render_item() method is available).
FieldPluginBase::RENDER_TEXT_PHASE_EMPTY constant Indicator of the renderText() method for rendering the empty text.
FieldPluginBase::RENDER_TEXT_PHASE_SINGLE_ITEM constant Indicator of the renderText() method for rendering a single item. (If no render_item() is present).
FieldPluginBase::submitOptionsForm public function Performs some cleanup tasks on the options array before saving it. Overrides PluginBase::submitOptionsForm 1
FieldPluginBase::theme public function Passes values to drupal_render() using $this->themeFunctions() as #theme. Overrides FieldHandlerInterface::theme
FieldPluginBase::themeFunctions public function Provide a full list of possible theme templates used by this style. Overrides PluginBase::themeFunctions
FieldPluginBase::tokenizeValue public function Replaces a value with tokens from the last field. Overrides FieldHandlerInterface::tokenizeValue
FieldPluginBase::trimText public static function Trims the field down to the specified length.
FieldPluginBase::useStringGroupBy public function Determines if this field will be available as an option to group the result by in the style settings. Overrides FieldHandlerInterface::useStringGroupBy
HandlerBase::$field public property With field you can override the realField if the real field is not set.
HandlerBase::$moduleHandler protected property The module handler. 3
HandlerBase::$query public property Where the $query object will reside: 7
HandlerBase::$realField public property The actual field in the database table, maybe different on other kind of query plugins/special handlers.
HandlerBase::$relationship public property The relationship used for this field.
HandlerBase::$table public property The table this handler is attached to.
HandlerBase::$tableAlias public property The alias of the table of this handler which is used in the query.
HandlerBase::$viewsData protected property The views data service.
HandlerBase::acceptExposedInput public function Take input from exposed handlers and assign to this handler, if necessary. 1
HandlerBase::access public function Check whether given user has access to this handler. Overrides ViewsHandlerInterface::access 4
HandlerBase::breakString public static function Breaks x,y,z and x+y+z into an array. Overrides ViewsHandlerInterface::breakString
HandlerBase::broken public function Determines if the handler is considered 'broken', meaning it's a placeholder used when a handler can't be found. Overrides ViewsHandlerInterface::broken
HandlerBase::buildExposedForm public function Render our chunk of the exposed handler form when selecting 1
HandlerBase::buildExposeForm public function Form for exposed handler options. 2
HandlerBase::buildExtraOptionsForm public function Provide a form for setting options. 1
HandlerBase::buildGroupByForm public function Provide a form for aggregation settings. 1
HandlerBase::calculateDependencies public function Calculates dependencies for the configured plugin. Overrides PluginBase::calculateDependencies 10
HandlerBase::canExpose public function Determine if a handler can be exposed. 2
HandlerBase::caseTransform protected function Transform a string by a certain method.
HandlerBase::defaultExposeOptions public function Set new exposed option defaults when exposed setting is flipped on. 2
HandlerBase::defineExtraOptions public function Provide defaults for the handler.
HandlerBase::displayExposedForm public function Displays the Expose form.
HandlerBase::ensureMyTable public function Ensure the main table for this handler is in the query. This is used a lot. Overrides ViewsHandlerInterface::ensureMyTable 2
HandlerBase::exposedInfo public function Get information about the exposed form for the form renderer. 1
HandlerBase::getDateField public function Creates cross-database SQL dates. 2
HandlerBase::getDateFormat public function Creates cross-database SQL date formatting. 2
HandlerBase::getEntityType public function Determines the entity type used by this handler. Overrides ViewsHandlerInterface::getEntityType
HandlerBase::getField public function Shortcut to get a handler's raw field value. Overrides ViewsHandlerInterface::getField
HandlerBase::getJoin public function Get the join object that should be used for this handler. Overrides ViewsHandlerInterface::getJoin
HandlerBase::getModuleHandler protected function Gets the module handler.
HandlerBase::getTableJoin public static function Fetches a handler to join one table to a primary table from the data cache. Overrides ViewsHandlerInterface::getTableJoin
HandlerBase::getViewsData protected function Gets views data service.
HandlerBase::hasExtraOptions public function If a handler has 'extra options' it will get a little settings widget and another form called extra_options. 1
HandlerBase::isAGroup public function Returns TRUE if the exposed filter works like a grouped filter. 1
HandlerBase::isExposed public function Determine if this item is 'exposed', meaning it provides form elements to let users modify the view.
HandlerBase::multipleExposedInput public function Define if the exposed input has to be submitted multiple times. This is TRUE when exposed filters grouped are using checkboxes as widgets. 1
HandlerBase::placeholder protected function Provides a unique placeholders for handlers.
HandlerBase::postExecute public function Run after the view is executed, before the result is cached. Overrides ViewsHandlerInterface::postExecute
HandlerBase::preQuery public function Run before the view is built. Overrides ViewsHandlerInterface::preQuery 2
HandlerBase::sanitizeValue public function Sanitize the value for output. Overrides ViewsHandlerInterface::sanitizeValue
HandlerBase::setModuleHandler public function Sets the module handler.
HandlerBase::setRelationship public function Called just prior to query(), this lets a handler set up any relationship it needs. Overrides ViewsHandlerInterface::setRelationship
HandlerBase::setViewsData public function
HandlerBase::showExposeButton public function Shortcut to display the expose/hide button. 2
HandlerBase::showExposeForm public function Shortcut to display the exposed options form. Overrides ViewsHandlerInterface::showExposeForm
HandlerBase::storeExposedInput public function If set to remember exposed input in the session, store it there. 1
HandlerBase::submitExposed public function Submit the exposed handler form
HandlerBase::submitExposeForm public function Perform any necessary changes to the form exposes prior to storage. There is no need for this function to actually store the data.
HandlerBase::submitExtraOptionsForm public function Perform any necessary changes to the form values prior to storage. There is no need for this function to actually store the data.
HandlerBase::submitFormCalculateOptions public function Calculates options stored on the handler 1
HandlerBase::submitGroupByForm public function Perform any necessary changes to the form values prior to storage. There is no need for this function to actually store the data. 1
HandlerBase::submitTemporaryForm public function A submit handler that is used for storing temporary items when using multi-step changes, such as ajax requests.
HandlerBase::usesGroupBy public function Provides the handler some groupby. 13
HandlerBase::validate public function Validate that the plugin is correct and can be saved. Overrides PluginBase::validate 2
HandlerBase::validateExposed public function Validate the exposed handler form 4
HandlerBase::validateExposeForm public function Validate the options form. 1
HandlerBase::validateExtraOptionsForm public function Validate the options form.
MessengerTrait::$messenger protected property The messenger. 29
MessengerTrait::messenger public function Gets the messenger. 29
MessengerTrait::setMessenger public function Sets the messenger.
MysqlDate::$dateFormatStorage protected property The date format storage.
MysqlDate::$dateFormatter protected property The date formatter service.
MysqlDate::buildOptionsForm public function Default options form that provides the label widget that all fields should have. Overrides FieldPluginBase::buildOptionsForm
MysqlDate::create public static function Creates an instance of the plugin. Overrides PluginBase::create
MysqlDate::defineOptions protected function Information about options for all kinds of purposes will be held here. Overrides FieldPluginBase::defineOptions
MysqlDate::render public function Renders the field. Overrides FieldPluginBase::render
MysqlDate::__construct public function Constructs a new Date object. Overrides HandlerBase::__construct
PluginBase::$configuration protected property Configuration information passed into the plugin. 1
PluginBase::$definition public property Plugins's definition
PluginBase::$displayHandler public property The display object this plugin is for.
PluginBase::$options public property Options for this plugin will be held here.
PluginBase::$pluginDefinition protected property The plugin implementation definition. 1
PluginBase::$pluginId protected property The plugin_id.
PluginBase::$usesOptions protected property Denotes whether the plugin has an additional options form. 8
PluginBase::$view public property The top object of a view. 1
PluginBase::DERIVATIVE_SEPARATOR constant A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::destroy public function Clears a plugin. Overrides ViewsPluginInterface::destroy 2
PluginBase::doFilterByDefinedOptions protected function Do the work to filter out stored options depending on the defined options.
PluginBase::filterByDefinedOptions public function Filter out stored options depending on the defined options. Overrides ViewsPluginInterface::filterByDefinedOptions
PluginBase::getAvailableGlobalTokens public function Returns an array of available token replacements. Overrides ViewsPluginInterface::getAvailableGlobalTokens
PluginBase::getBaseId public function Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId public function Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition public function Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition 3
PluginBase::getPluginId public function Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::getProvider public function Returns the plugin provider. Overrides ViewsPluginInterface::getProvider
PluginBase::globalTokenForm public function Adds elements for available core tokens to a form. Overrides ViewsPluginInterface::globalTokenForm
PluginBase::globalTokenReplace public function Returns a string with any core tokens replaced. Overrides ViewsPluginInterface::globalTokenReplace
PluginBase::INCLUDE_ENTITY constant Include entity row languages when listing languages.
PluginBase::INCLUDE_NEGOTIATED constant Include negotiated languages when listing languages.
PluginBase::isConfigurable public function Determines if the plugin is configurable.
PluginBase::listLanguages protected function Makes an array of languages, optionally including special languages.
PluginBase::pluginTitle public function Return the human readable name of the display. Overrides ViewsPluginInterface::pluginTitle
PluginBase::preRenderAddFieldsetMarkup public static function Moves form elements into fieldsets for presentation purposes. Overrides ViewsPluginInterface::preRenderAddFieldsetMarkup
PluginBase::preRenderFlattenData public static function Flattens the structure of form elements. Overrides ViewsPluginInterface::preRenderFlattenData
PluginBase::queryLanguageSubstitutions public static function Returns substitutions for Views queries for languages.
PluginBase::setOptionDefaults protected function Fills up the options of the plugin with defaults.
PluginBase::summaryTitle public function Returns the summary of the settings in the display. Overrides ViewsPluginInterface::summaryTitle 6
PluginBase::trustedCallbacks public static function Lists the trusted callbacks provided by the implementing class. Overrides TrustedCallbackInterface::trustedCallbacks 6
PluginBase::unpackOptions public function Unpack options over our existing defaults, drilling down into arrays so that defaults don't get totally blown away. Overrides ViewsPluginInterface::unpackOptions
PluginBase::usesOptions public function Returns the usesOptions property. Overrides ViewsPluginInterface::usesOptions 8
PluginBase::validateOptionsForm public function Validate the options form. Overrides ViewsPluginInterface::validateOptionsForm 15
PluginBase::viewsTokenReplace protected function Replaces Views' tokens in a given string. The resulting string will be sanitized with Xss::filterAdmin. 1
PluginBase::VIEWS_QUERY_LANGUAGE_SITE_DEFAULT constant Query string to indicate the site default language.
StringTranslationTrait::$stringTranslation protected property The string translation service. 1
StringTranslationTrait::formatPlural protected function Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals protected function Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation protected function Gets the string translation service.
StringTranslationTrait::setStringTranslation public function Sets the string translation service to use. 2
StringTranslationTrait::t protected function Translates a string to the current language or to a given language.
TrustedCallbackInterface::THROW_EXCEPTION constant Untrusted callbacks throw exceptions.
TrustedCallbackInterface::TRIGGER_SILENCED_DEPRECATION constant Untrusted callbacks trigger silenced E_USER_DEPRECATION errors.
TrustedCallbackInterface::TRIGGER_WARNING constant Untrusted callbacks trigger E_USER_WARNING errors.