function TermForm::form

Overrides ContentEntityForm::form

File

core/modules/taxonomy/src/TermForm.php, line 19

Class

TermForm

Base for handler for taxonomy term edit forms.

Namespace

Code

public function form(array $form, FormStateInterface $form_state) {
    $term = $this->entity;
    $vocab_storage = $this->entityTypeManager
        ->getStorage('taxonomy_vocabulary');
    
    /** @var \Drupal\taxonomy\TermStorageInterface $taxonomy_storage */
    $taxonomy_storage = $this->entityTypeManager
        ->getStorage('taxonomy_term');
    $vocabulary = $vocab_storage->load($term->bundle());
    $parent = $this->getParentIds($term);
    $form_state->set([
        'taxonomy',
        'parent',
    ], $parent);
    $form_state->set([
        'taxonomy',
        'vocabulary',
    ], $vocabulary);
    $form['relations'] = [
        '#type' => 'details',
        '#title' => $this->t('Relations'),
        '#open' => $taxonomy_storage->getVocabularyHierarchyType($vocabulary->id()) == VocabularyInterface::HIERARCHY_MULTIPLE,
        '#weight' => 10,
    ];
    // \Drupal\taxonomy\TermStorageInterface::loadTree() and
    // \Drupal\taxonomy\TermStorageInterface::loadParents() may contain large
    // numbers of items so we check for taxonomy.settings:override_selector
    // before loading the full vocabulary. Contrib modules can then intercept
    // before hook_form_alter to provide scalable alternatives.
    if (!$this->config('taxonomy.settings')
        ->get('override_selector')) {
        $exclude = [];
        if (!$term->isNew()) {
            $children = $taxonomy_storage->loadTree($vocabulary->id(), $term->id());
            // A term can't be the child of itself, nor of its children.
            foreach ($children as $child) {
                $exclude[] = $child->tid;
            }
            $exclude[] = $term->id();
        }
        $tree = $taxonomy_storage->loadTree($vocabulary->id());
        $options = [
            '<' . $this->t('root') . '>',
        ];
        if (empty($parent)) {
            $parent = [
                0,
            ];
        }
        foreach ($tree as $item) {
            if (!in_array($item->tid, $exclude)) {
                $options[$item->tid] = str_repeat('-', $item->depth) . $item->name;
            }
        }
    }
    else {
        $options = [
            '<' . $this->t('root') . '>',
        ];
        $parent = [
            0,
        ];
    }
    if ($this->getRequest()->query
        ->has('parent')) {
        $parent = array_values(array_intersect(array_keys($options), (array) $this->getRequest()->query
            ->all()['parent']));
    }
    $form['relations']['parent'] = [
        '#type' => 'select',
        '#title' => $this->t('Parent terms'),
        '#options' => $options,
        '#default_value' => $parent,
        '#multiple' => TRUE,
    ];
    $form['relations']['weight'] = [
        '#type' => 'textfield',
        '#title' => $this->t('Weight'),
        '#size' => 6,
        '#default_value' => $term->getWeight(),
        '#description' => $this->t('Terms are displayed in ascending order by weight.'),
        '#required' => TRUE,
    ];
    $form['vid'] = [
        '#type' => 'value',
        '#value' => $vocabulary->id(),
    ];
    $form['tid'] = [
        '#type' => 'value',
        '#value' => $term->id(),
    ];
    return parent::form($form, $form_state);
}