class Table

Same name in this branch

10 core/modules/views/src/Plugin/views/style/Table.php \Drupal\views\Plugin\views\style\Table

Same name in other branches

9 core/modules/views/src/Plugin/views/style/Table.php \Drupal\views\Plugin\views\style\Table
9 core/lib/Drupal/Core/Render/Element/Table.php \Drupal\Core\Render\Element\Table
8.9.x core/modules/views/src/Plugin/views/style/Table.php \Drupal\views\Plugin\views\style\Table
8.9.x core/lib/Drupal/Core/Render/Element/Table.php \Drupal\Core\Render\Element\Table
11.x core/modules/views/src/Plugin/views/style/Table.php \Drupal\views\Plugin\views\style\Table
11.x core/lib/Drupal/Core/Render/Element/Table.php \Drupal\Core\Render\Element\Table

Provides a render element for a table.

Note: Although this extends FormElementBase, it can be used outside the context of a form.

Properties:

#header: An array of table header labels.
#rows: An array of the rows to be displayed. Each row is either an array of cell contents or an array of properties as described in table.html.twig Alternatively specify the data for the table as child elements of the table element. Table elements would contain rows elements that would in turn contain column elements.
#empty: Text to display when no rows are present.
#responsive: Indicates whether to add the drupal.tableresponsive library providing responsive tables. Defaults to TRUE.
#sticky: Indicates whether to make the table headers sticky at the top of the page. Defaults to FALSE.
#footer: Table footer rows, in the same format as the #rows property.
#caption: A localized string for the <caption> tag.

Usage example 1: A simple form with an additional information table which doesn't include any other form field.

// Table header.
$header = [
    'name' => $this->t('Name'),
    'age' => $this->t('Age'),
    'email' => $this->t('Email'),
];
// Default data rows (these can be fetched from the database or any other
// source).
$default_rows = [
    [
        'name' => 'John',
        'age' => 28,
        'email' => 'john@example.com',
    ],
    [
        'name' => 'Jane',
        'age' => 25,
        'email' => 'jane@example.com',
    ],
];
// Prepare rows for the table element. We just display the information with
// #markup.
$rows = [];
foreach ($default_rows as $default_row) {
    $rows[] = [
        'name' => [
            'data' => [
                '#markup' => $default_row['name'],
            ],
        ],
        'age' => [
            'data' => [
                '#markup' => $default_row['age'],
            ],
        ],
        'email' => [
            'data' => [
                '#markup' => $default_row['email'],
            ],
        ],
    ];
}
// Now set the table element.
$form['information'] = [
    '#type' => 'table',
    '#header' => $header,
    '#rows' => $rows,
    // Add the prepared rows here.
'#empty' => $this->t('No entries available.'),
];

Usage example 2: A table of form fields without the #rows property defined.

// Set the contact element as a table render element with no #rows property.
// Next add five rows as sub-elements (or children) that will populate
// automatically the #rows property in preRenderTable().
$form['contacts'] = [
    '#type' => 'table',
    '#caption' => $this->t('Sample Table'),
    '#header' => [
        $this->t('Name'),
        $this->t('Phone'),
    ],
    '#rows' => [],
    '#empty' => $this->t('No entries available.'),
];
// Add arbitrarily four rows to the table. Each row contains two fields
// (name and phone). The preRenderTable() method will add each sub-element
// (or children) of the table element to the #rows property.
for ($i = 1; $i <= 4; $i++) {
    // Add foo and baz classes for each row.
    $form['contacts'][$i]['#attributes'] = [
        'class' => [
            'foo',
            'baz',
        ],
    ];
    // Set the first column.
    $form['contacts'][$i]['name'] = [
        '#type' => 'textfield',
        '#title' => $this->t('Name'),
        '#title_display' => 'invisible',
    ];
    // Set the second column.
    $form['contacts'][$i]['phone'] = [
        '#type' => 'tel',
        '#title' => $this->t('Phone'),
        '#title_display' => 'invisible',
    ];
}
// Add the fifth row as a colspan of two columns.
$form['contacts'][]['colspan_example'] = [
    '#plain_text' => 'Colspan Example',
    '#wrapper_attributes' => [
        'colspan' => 2,
        'class' => [
            'foo',
            'bar',
        ],
    ],
];

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\Table extends \Drupal\Core\Render\Element\FormElementBase

Expanded class hierarchy of Table

File

core/lib/Drupal/Core/Render/Element/Table.php, line 111

Namespace

Drupal\Core\Render\Element

View source

class Table extends FormElementBase {
    
    /**
     * {@inheritdoc}
     */
    public function getInfo() {
        $class = static::class;
        return [
            '#header' => [],
            '#rows' => [],
            '#empty' => '',
            // Properties for tableselect support.
'#input' => TRUE,
            '#tree' => TRUE,
            '#tableselect' => FALSE,
            '#sticky' => FALSE,
            '#responsive' => TRUE,
            '#multiple' => TRUE,
            '#js_select' => TRUE,
            '#process' => [
                [
                    $class,
                    'processTable',
                ],
            ],
            '#element_validate' => [
                [
                    $class,
                    'validateTable',
                ],
            ],
            // Properties for tabledrag support.
            // The value is a list of arrays that are passed to
            // drupal_attach_tabledrag(). Table::preRenderTable() prepends the HTML ID
            // of the table to each set of options.
            // @see drupal_attach_tabledrag()
'#tabledrag' => [],
            // Render properties.
'#pre_render' => [
                [
                    $class,
                    'preRenderTable',
                ],
            ],
            '#theme' => 'table',
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
        // If #multiple is FALSE, the regular default value of radio buttons is used.
        if (!empty($element['#tableselect']) && !empty($element['#multiple'])) {
            // Contrary to #type 'checkboxes', the default value of checkboxes in a
            // table is built from the array keys (instead of array values) of the
            // #default_value property.
            // @todo D8: Remove this inconsistency.
            if ($input === FALSE) {
                $element += [
                    '#default_value' => [],
                ];
                $value = array_keys(array_filter($element['#default_value']));
                return array_combine($value, $value);
            }
            else {
                return is_array($input) ? array_combine($input, $input) : [];
            }
        }
    }
    
    /**
     * #process callback for #type 'table' to add tableselect support.
     *
     * @param array $element
     *   An associative array containing the properties and children of the
     *   table element.
     * @param \Drupal\Core\Form\FormStateInterface $form_state
     *   The current state of the form.
     * @param array $complete_form
     *   The complete form structure.
     *
     * @return array
     *   The processed element.
     */
    public static function processTable(&$element, FormStateInterface $form_state, &$complete_form) {
        if ($element['#tableselect']) {
            if ($element['#multiple']) {
                $value = is_array($element['#value']) ? $element['#value'] : [];
            }
            else {
                $element['#js_select'] = FALSE;
            }
            // Add a "Select all" checkbox column to the header.
            // @todo D8: Rename into #select_all?
            if ($element['#js_select']) {
                $element['#attached']['library'][] = 'core/drupal.tableselect';
                array_unshift($element['#header'], [
                    'class' => [
                        'select-all',
                    ],
                ]);
            }
            else {
                array_unshift($element['#header'], '');
            }
            if (!isset($element['#default_value']) || $element['#default_value'] === 0) {
                $element['#default_value'] = [];
            }
            // Create a checkbox or radio for each row in a way that the value of the
            // tableselect element behaves as if it had been of #type checkboxes or
            // radios.
            foreach (Element::children($element) as $key) {
                $row =& $element[$key];
                // Prepare the element #parents for the tableselect form element.
                // Their values have to be located in child keys (#tree is ignored),
                // since Table::validateTable() has to be able to validate whether input
                // (for the parent #type 'table' element) has been submitted.
                $element_parents = array_merge($element['#parents'], [
                    $key,
                ]);
                // Since the #parents of the tableselect form element will equal the
                // #parents of the row element, prevent FormBuilder from auto-generating
                // an #id for the row element, since
                // \Drupal\Component\Utility\Html::getUniqueId() would automatically
                // append a suffix to the tableselect form element's #id otherwise.
                $row['#id'] = HtmlUtility::getUniqueId('edit-' . implode('-', $element_parents) . '-row');
                // Do not overwrite manually created children.
                if (!isset($row['select'])) {
                    // Determine option label; either an assumed 'title' column, or the
                    // first available column containing a #title or #markup.
                    // @todo Consider to add an optional $element[$key]['#title_key']
                    //   defaulting to 'title'?
                    unset($label_element);
                    $title = NULL;
                    if (isset($row['title']['#type']) && $row['title']['#type'] == 'label') {
                        $label_element =& $row['title'];
                    }
                    else {
                        if (!empty($row['title']['#title'])) {
                            $title = $row['title']['#title'];
                        }
                        else {
                            foreach (Element::children($row) as $column) {
                                if (isset($row[$column]['#title'])) {
                                    $title = $row[$column]['#title'];
                                    break;
                                }
                                if (isset($row[$column]['#markup'])) {
                                    $title = $row[$column]['#markup'];
                                    break;
                                }
                            }
                        }
                        if (isset($title) && $title !== '') {
                            $title = t('Update @title', [
                                '@title' => $title,
                            ]);
                        }
                    }
                    // Prepend the select column to existing columns.
                    $row = [
                        'select' => [],
                    ] + $row;
                    $row['select'] += [
                        '#type' => $element['#multiple'] ? 'checkbox' : 'radio',
                        '#id' => HtmlUtility::getUniqueId('edit-' . implode('-', $element_parents)),
                        // @todo If rows happen to use numeric indexes instead of string keys,
                        //   this results in a first row with $key === 0, which is always FALSE.
'#return_value' => $key,
                        '#attributes' => $element['#attributes'],
                        '#wrapper_attributes' => [
                            'class' => [
                                'table-select',
                            ],
                        ],
                    ];
                    if ($element['#multiple']) {
                        $row['select']['#default_value'] = isset($value[$key]) ? $key : NULL;
                        $row['select']['#parents'] = $element_parents;
                    }
                    else {
                        $row['select']['#default_value'] = $element['#default_value'] == $key ? $key : NULL;
                        $row['select']['#parents'] = $element['#parents'];
                    }
                    if (isset($label_element)) {
                        $label_element['#id'] = $row['select']['#id'] . '--label';
                        $label_element['#for'] = $row['select']['#id'];
                        $row['select']['#attributes']['aria-labelledby'] = $label_element['#id'];
                        $row['select']['#title_display'] = 'none';
                    }
                    else {
                        $row['select']['#title'] = $title;
                        $row['select']['#title_display'] = 'invisible';
                    }
                }
            }
        }
        return $element;
    }
    
    /**
     * #element_validate callback for #type 'table'.
     *
     * @param array $element
     *   An associative array containing the properties and children of the
     *   table element.
     * @param \Drupal\Core\Form\FormStateInterface $form_state
     *   The current state of the form.
     * @param array $complete_form
     *   The complete form structure.
     */
    public static function validateTable(&$element, FormStateInterface $form_state, &$complete_form) {
        // Skip this validation if the button to submit the form does not require
        // selected table row data.
        $triggering_element = $form_state->getTriggeringElement();
        if (empty($triggering_element['#tableselect'])) {
            return;
        }
        if ($element['#multiple']) {
            if (!is_array($element['#value']) || !count(array_filter($element['#value']))) {
                $form_state->setError($element, t('No items selected.'));
            }
        }
        elseif (!isset($element['#value']) || $element['#value'] === '') {
            $form_state->setError($element, t('No item selected.'));
        }
    }
    
    /**
     * #pre_render callback to transform children of an element of #type 'table'.
     *
     * This function converts sub-elements of an element of #type 'table' to be
     * suitable for table.html.twig:
     * - The first level of sub-elements are table rows. Only the #attributes
     *   property is taken into account.
     * - The second level of sub-elements is converted into columns for the
     *   corresponding first-level table row.
     *
     * Simple example usage:
     * @code
     * $form['table'] = [
     *   '#type' => 'table',
     *   '#header' => [$this->t('Title'), ['data' => $this->t('Operations'), 'colspan' => '1']],
     *   // Optionally, to add tableDrag support:
     *   '#tabledrag' => [
     *     [
     *       'action' => 'order',
     *       'relationship' => 'sibling',
     *       'group' => 'thing-weight',
     *     ],
     *   ],
     * ];
     * foreach ($things as $row => $thing) {
     *   $form['table'][$row]['#weight'] = $thing['weight'];
     *
     *   $form['table'][$row]['title'] = [
     *     '#type' => 'textfield',
     *     '#default_value' => $thing['title'],
     *   ];
     *
     *   // Optionally, to add tableDrag support:
     *   $form['table'][$row]['#attributes']['class'][] = 'draggable';
     *   $form['table'][$row]['weight'] = [
     *     '#type' => 'textfield',
     *     '#title' => $this->t('Weight for @title', ['@title' => $thing['title']]),
     *     '#title_display' => 'invisible',
     *     '#size' => 4,
     *     '#default_value' => $thing['weight'],
     *     '#attributes' => ['class' => ['thing-weight']],
     *   );
     *
     *   // The amount of link columns should be identical to the 'colspan'
     *   // attribute in #header above.
     *   $form['table'][$row]['edit'] = [
     *     '#type' => 'link',
     *     '#title' => $this->t('Edit'),
     *     '#url' => Url::fromRoute('entity.test_entity.edit_form', ['test_entity' => $row]),
     *   ];
     * }
     * @endcode
     *
     * @param array $element
     *   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
     *     $options array.
     *
     * @return array
     *
     * @see template_preprocess_table()
     * @see \Drupal\Core\Render\AttachmentsResponseProcessorInterface::processAttachments()
     * @see drupal_attach_tabledrag()
     */
    public static function preRenderTable($element) {
        foreach (Element::children($element) as $first) {
            $row = [
                'data' => [],
            ];
            // Apply attributes of first-level elements as table row attributes.
            if (isset($element[$first]['#attributes'])) {
                $row += $element[$first]['#attributes'];
            }
            // Turn second-level elements into table row columns.
            // @todo Do not render a cell for children of #type 'value'.
            // @see https://www.drupal.org/node/1248940
            foreach (Element::children($element[$first]) as $second) {
                // Assign the element by reference, so any potential changes to the
                // original element are taken over.
                $column = [
                    'data' => &$element[$first][$second],
                ];
                // Apply wrapper attributes of second-level elements as table cell
                // attributes.
                if (isset($element[$first][$second]['#wrapper_attributes'])) {
                    $column += $element[$first][$second]['#wrapper_attributes'];
                }
                $row['data'][] = $column;
            }
            $element['#rows'][] = $row;
        }
        // Take over $element['#id'] as HTML ID attribute, if not already set.
        Element::setAttributes($element, [
            'id',
        ]);
        // Add sticky headers, if applicable.
        if (count($element['#header']) && $element['#sticky']) {
            $element['#attached']['library'][] = 'core/drupal.tableheader';
            $element['#attributes']['class'][] = 'sticky-header';
        }
        // If the table has headers and it should react responsively to columns hidden
        // with the classes represented by the constants RESPONSIVE_PRIORITY_MEDIUM
        // and RESPONSIVE_PRIORITY_LOW, add the tableresponsive behaviors.
        if (count($element['#header']) && $element['#responsive']) {
            $element['#attached']['library'][] = 'core/drupal.tableresponsive';
            // Add 'responsive-enabled' class to the table to identify it for JS.
            // This is needed to target tables constructed by this function.
            $element['#attributes']['class'][] = 'responsive-enabled';
        }
        // If the custom #tabledrag is set and there is an HTML ID, add the table's
        // HTML ID to the options and attach the behavior.
        if (!empty($element['#tabledrag']) && isset($element['#attributes']['id'])) {
            foreach ($element['#tabledrag'] as $options) {
                $options['table_id'] = $element['#attributes']['id'];
                drupal_attach_tabledrag($element, $options);
            }
        }
        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
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	Sets a form element's class attribute.	Overrides ElementInterface::setAttributes	2
Table::getInfo	public	function	Returns the element properties for this element.	Overrides ElementInterface::getInfo	2
Table::preRenderTable	public static	function	#pre_render callback to transform children of an element of #type 'table'.
Table::processTable	public static	function	#process callback for #type 'table' to add tableselect support.
Table::validateTable	public static	function	#element_validate callback for #type 'table'.
Table::valueCallback	public static	function	Determines how user input is mapped to an element's #value property.	Overrides FormElementBase::valueCallback	1

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.

class Table

Hierarchy

See also

File

Namespace

Members

Search drupal 10

API Navigation

Breadcrumb

class Table

Hierarchy

See also

File

Namespace

Members

Search drupal 10

API Navigation