class PagerPluginBase

Same name in other branches
  1. 9 core/modules/views/src/Plugin/views/pager/PagerPluginBase.php \Drupal\views\Plugin\views\pager\PagerPluginBase
  2. 8.9.x core/modules/views/src/Plugin/views/pager/PagerPluginBase.php \Drupal\views\Plugin\views\pager\PagerPluginBase
  3. 11.x core/modules/views/src/Plugin/views/pager/PagerPluginBase.php \Drupal\views\Plugin\views\pager\PagerPluginBase

Base class for views pager plugins.

Hierarchy

Expanded class hierarchy of PagerPluginBase

Related topics

3 files declare their use of PagerPluginBase
DisplayKernelTest.php in core/modules/views/tests/src/Kernel/Plugin/DisplayKernelTest.php
ResultTest.php in core/modules/views/tests/src/Unit/Plugin/area/ResultTest.php
ViewExecutableTest.php in core/modules/views/tests/src/Kernel/ViewExecutableTest.php
1 string reference to 'PagerPluginBase'
views.data_types.schema.yml in core/modules/views/config/schema/views.data_types.schema.yml
core/modules/views/config/schema/views.data_types.schema.yml

File

core/modules/views/src/Plugin/views/pager/PagerPluginBase.php, line 28

Namespace

Drupal\views\Plugin\views\pager
View source
abstract class PagerPluginBase extends PluginBase {
    // phpcs:ignore Drupal.NamingConventions.ValidVariableName.LowerCamelName
    public $current_page = NULL;
    // phpcs:ignore Drupal.NamingConventions.ValidVariableName.LowerCamelName
    public $total_items = 0;
    
    /**
     * {@inheritdoc}
     */
    protected $usesOptions = TRUE;
    
    /**
     * Options available for setting pagination headers.
     */
    protected array $headingOptions = [
        'h1' => 'H1',
        'h2' => 'H2',
        'h3' => 'H3',
        'h4' => 'H4',
        'h5' => 'H5',
        'h6' => 'H6',
    ];
    
    /**
     * Get how many items per page this pager will display.
     *
     * All but the leanest pagers should probably return a value here, so
     * most pagers will not need to override this method.
     */
    public function getItemsPerPage() {
        return $this->options['items_per_page'] ?? 0;
    }
    
    /**
     * Set how many items per page this pager will display.
     *
     * This is mostly used for things that will override the value.
     */
    public function setItemsPerPage($items) {
        $this->options['items_per_page'] = $items;
    }
    
    /**
     * Get the page offset, or how many items to skip.
     *
     * Even pagers that don't actually page can skip items at the beginning,
     * so few pagers will need to override this method.
     */
    public function getOffset() {
        return $this->options['offset'] ?? 0;
    }
    
    /**
     * Set the page offset, or how many items to skip.
     */
    public function setOffset($offset) {
        $this->options['offset'] = $offset;
    }
    
    /**
     * Get the pager heading tag.
     *
     * @return string
     *   Heading level for the pager.
     */
    public function getHeadingLevel() : string {
        return $this->options['pagination_heading_level'] ?? 'h4';
    }
    
    /**
     * Set the pager heading.
     */
    public function setHeadingLevel($headingLevel) : void {
        $this->options['pagination_heading_level'] = $headingLevel;
    }
    
    /**
     * Get the current page.
     *
     * If NULL, we do not know what the current page is.
     */
    public function getCurrentPage() {
        return $this->current_page;
    }
    
    /**
     * Set the current page.
     *
     * @param $number
     *   If provided, the page number will be set to this. If NOT provided,
     *   the page number will be set from the global page array.
     */
    public function setCurrentPage($number = NULL) {
        if (!is_numeric($number) || $number < 0) {
            $number = 0;
        }
        $this->current_page = $number;
    }
    
    /**
     * Get the total number of items.
     *
     * If NULL, we do not yet know what the total number of items are.
     */
    public function getTotalItems() {
        return $this->total_items;
    }
    
    /**
     * Get the pager id, if it exists.
     */
    public function getPagerId() {
        return $this->options['id'] ?? 0;
    }
    
    /**
     * Provide the default form for validating options.
     */
    public function validateOptionsForm(&$form, FormStateInterface $form_state) {
    }
    
    /**
     * Provide the default form for submitting options.
     */
    public function submitOptionsForm(&$form, FormStateInterface $form_state) {
    }
    
    /**
     * Returns a string to display as the clickable title for the pager plugin.
     */
    public function summaryTitle() {
        return $this->t('Unknown');
    }
    
    /**
     * Determine if this pager actually uses a pager.
     *
     * Only a couple of very specific pagers will set this to false.
     */
    public function usePager() {
        return TRUE;
    }
    
    /**
     * Determine if a pager needs a count query.
     *
     * If a pager needs a count query, a simple query
     */
    public function useCountQuery() {
        return TRUE;
    }
    
    /**
     * Executes the count query.
     *
     * This will be done just prior to the query itself being executed.
     */
    public function executeCountQuery(&$count_query) {
        $this->total_items = $count_query->execute()
            ->fetchField();
        if (!empty($this->options['offset'])) {
            $this->total_items -= $this->options['offset'];
        }
        // Prevent from being negative.
        $this->total_items = max(0, $this->total_items);
        return $this->total_items;
    }
    
    /**
     * Updates the pager information.
     *
     * If there are pagers that need global values set, this method can
     * be used to set them. It will be called after the query is run.
     */
    public function updatePageInfo() {
    }
    
    /**
     * Modify the query for paging.
     *
     * This is called during the build phase and can directly modify the query.
     */
    public function query() {
    }
    
    /**
     * Perform any needed actions just prior to the query executing.
     */
    public function preExecute(&$query) {
    }
    
    /**
     * Perform any needed actions just after the query executing.
     */
    public function postExecute(&$result) {
    }
    
    /**
     * Perform any needed actions just before rendering.
     */
    public function preRender(&$result) {
    }
    
    /**
     * Return the renderable array of the pager.
     *
     * Called during the view render process.
     *
     * @param $input
     *   Any extra GET parameters that should be retained, such as exposed
     *   input.
     */
    public function render($input) {
    }
    
    /**
     * Determine if there are more records available.
     *
     * This is primarily used to control the display of a more link.
     */
    public function hasMoreRecords() {
        return $this->getItemsPerPage() && $this->total_items > (intval($this->current_page) + 1) * $this->getItemsPerPage();
    }
    public function exposedFormAlter(&$form, FormStateInterface $form_state) {
    }
    public function exposedFormValidate(&$form, FormStateInterface $form_state) {
    }
    public function exposedFormSubmit(&$form, FormStateInterface $form_state, &$exclude) {
    }
    public function usesExposed() {
        return FALSE;
    }
    protected function itemsPerPageExposed() {
        return FALSE;
    }
    protected function isOffsetExposed() {
        return FALSE;
    }

}

Members

Title Sort descending Deprecated Modifiers Object type Summary Overriden Title Overrides
DerivativeInspectionInterface::getBaseId public function Gets the base_plugin_id of the plugin instance. 1
DerivativeInspectionInterface::getDerivativeId public function Gets the derivative_id of the plugin instance. 1
PagerPluginBase::$current_page public property
PagerPluginBase::$headingOptions protected property Options available for setting pagination headers.
PagerPluginBase::$total_items public property
PagerPluginBase::$usesOptions protected property Denotes whether the plugin has an additional options form. Overrides PluginBase::$usesOptions
PagerPluginBase::executeCountQuery public function Executes the count query. 1
PagerPluginBase::exposedFormAlter public function 1
PagerPluginBase::exposedFormSubmit public function
PagerPluginBase::exposedFormValidate public function 1
PagerPluginBase::getCurrentPage public function Get the current page.
PagerPluginBase::getHeadingLevel public function Get the pager heading tag.
PagerPluginBase::getItemsPerPage public function Get how many items per page this pager will display. 1
PagerPluginBase::getOffset public function Get the page offset, or how many items to skip.
PagerPluginBase::getPagerId public function Get the pager id, if it exists.
PagerPluginBase::getTotalItems public function Get the total number of items.
PagerPluginBase::hasMoreRecords public function Determine if there are more records available.
PagerPluginBase::isOffsetExposed protected function 1
PagerPluginBase::itemsPerPageExposed protected function 1
PagerPluginBase::postExecute public function Perform any needed actions just after the query executing. 3
PagerPluginBase::preExecute public function Perform any needed actions just prior to the query executing.
PagerPluginBase::preRender public function Perform any needed actions just before rendering.
PagerPluginBase::query public function Modify the query for paging. Overrides PluginBase::query 3
PagerPluginBase::render public function Return the renderable array of the pager. 2
PagerPluginBase::setCurrentPage public function Set the current page. 1
PagerPluginBase::setHeadingLevel public function Set the pager heading.
PagerPluginBase::setItemsPerPage public function Set how many items per page this pager will display.
PagerPluginBase::setOffset public function Set the page offset, or how many items to skip.
PagerPluginBase::submitOptionsForm public function Provide the default form for submitting options. Overrides PluginBase::submitOptionsForm
PagerPluginBase::summaryTitle public function Returns a string to display as the clickable title for the pager plugin. Overrides PluginBase::summaryTitle 4
PagerPluginBase::updatePageInfo public function Updates the pager information. 1
PagerPluginBase::useCountQuery public function Determine if a pager needs a count query. 3
PagerPluginBase::usePager public function Determine if this pager actually uses a pager. 2
PagerPluginBase::usesExposed public function 1
PagerPluginBase::validateOptionsForm public function Provide the default form for validating options. Overrides PluginBase::validateOptionsForm 1
PluginBase::$definition public property Plugins&#039; 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::$position public property The handler position.
PluginBase::$renderer protected property Stores the render API renderer. 3
PluginBase::$view public property The top object of a view. 1
PluginBase::buildOptionsForm public function Provide a form to edit options for this plugin. Overrides ViewsPluginInterface::buildOptionsForm 16
PluginBase::calculateDependencies public function Calculates dependencies for the configured plugin. Overrides DependentPluginInterface::calculateDependencies 14
PluginBase::create public static function Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create 60
PluginBase::defineOptions protected function Information about options for all kinds of purposes will be held here. 18
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::getProvider public function Returns the plugin provider. Overrides ViewsPluginInterface::getProvider
PluginBase::getRenderer protected function Returns the render API renderer. 1
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::init public function Initialize the plugin. Overrides ViewsPluginInterface::init 6
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::themeFunctions public function Provide a full list of possible theme templates used by this style. Overrides ViewsPluginInterface::themeFunctions 1
PluginBase::trustedCallbacks public static function Lists the trusted callbacks provided by the implementing class. Overrides TrustedCallbackInterface::trustedCallbacks 6
PluginBase::unpackOptions public function Unpacks options over our existing defaults. Overrides ViewsPluginInterface::unpackOptions
PluginBase::usesOptions public function Returns the usesOptions property. Overrides ViewsPluginInterface::usesOptions 8
PluginBase::validate public function Validate that the plugin is correct and can be saved. Overrides ViewsPluginInterface::validate 6
PluginBase::viewsTokenReplace protected function Replaces Views&#039; tokens in a given string. 1
PluginBase::VIEWS_QUERY_LANGUAGE_SITE_DEFAULT constant Query string to indicate the site default language.
PluginBase::__construct public function Constructs a PluginBase object. 19
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
TrustedCallbackInterface::THROW_EXCEPTION constant Untrusted callbacks throw exceptions.
TrustedCallbackInterface::TRIGGER_SILENCED_DEPRECATION constant Untrusted callbacks trigger silenced E_USER_DEPRECATION errors.
TrustedCallbackInterface::TRIGGER_WARNING Deprecated constant Untrusted callbacks trigger E_USER_WARNING errors.

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