function FieldStorageAddForm::buildForm

Overrides FormInterface::buildForm

File

core/modules/field_ui/src/Form/FieldStorageAddForm.php, line 136

Class

FieldStorageAddForm

Provides a form for the "field storage" add page.

Namespace

Code

public function buildForm(array $form, FormStateInterface $form_state, $entity_type_id = NULL, $bundle = NULL) {
    if (!$form_state->get('entity_type_id')) {
        $form_state->set('entity_type_id', $entity_type_id);
    }
    if (!$form_state->get('bundle')) {
        $form_state->set('bundle', $bundle);
    }
    $this->entityTypeId = $form_state->get('entity_type_id');
    $this->bundle = $form_state->get('bundle');
    // Gather valid field types.
    $field_type_options = [];
    foreach ($this->fieldTypePluginManager
        ->getGroupedDefinitions($this->fieldTypePluginManager
        ->getUiDefinitions()) as $category => $field_types) {
        foreach ($field_types as $name => $field_type) {
            $field_type_options[$category][$name] = $field_type['label'];
        }
    }
    $form['add'] = [
        '#type' => 'container',
        '#attributes' => [
            'class' => [
                'form--inline',
                'clearfix',
            ],
        ],
    ];
    $form['add']['new_storage_type'] = [
        '#type' => 'select',
        '#title' => $this->t('Add a new field'),
        '#options' => $field_type_options,
        '#empty_option' => $this->t('- Select a field type -'),
    ];
    // Re-use existing field.
    if ($existing_field_storage_options = $this->getExistingFieldStorageOptions()) {
        $form['add']['separator'] = [
            '#type' => 'item',
            '#markup' => $this->t('or'),
        ];
        $form['add']['existing_storage_name'] = [
            '#type' => 'select',
            '#title' => $this->t('Re-use an existing field'),
            '#options' => $existing_field_storage_options,
            '#empty_option' => $this->t('- Select an existing field -'),
        ];
        $form['#attached']['drupalSettings']['existingFieldLabels'] = $this->getExistingFieldLabels(array_keys($existing_field_storage_options));
    }
    else {
        // Provide a placeholder form element to simplify the validation code.
        $form['add']['existing_storage_name'] = [
            '#type' => 'value',
            '#value' => FALSE,
        ];
    }
    // Field label and field_name.
    $form['new_storage_wrapper'] = [
        '#type' => 'container',
        '#states' => [
            '!visible' => [
                ':input[name="new_storage_type"]' => [
                    'value' => '',
                ],
            ],
        ],
    ];
    $form['new_storage_wrapper']['label'] = [
        '#type' => 'textfield',
        '#title' => $this->t('Label'),
        '#size' => 15,
    ];
    $field_prefix = $this->config('field_ui.settings')
        ->get('field_prefix');
    $form['new_storage_wrapper']['field_name'] = [
        '#type' => 'machine_name',
        // This field should stay LTR even for RTL languages.
'#field_prefix' => '<span dir="ltr">' . $field_prefix,
        '#field_suffix' => '</span>&lrm;',
        '#size' => 15,
        '#description' => $this->t('A unique machine-readable name containing letters, numbers, and underscores.'),
        // Calculate characters depending on the length of the field prefix
        // setting. Maximum length is 32.
'#maxlength' => FieldStorageConfig::NAME_MAX_LENGTH - strlen($field_prefix),
        '#machine_name' => [
            'source' => [
                'new_storage_wrapper',
                'label',
            ],
            'exists' => [
                $this,
                'fieldNameExists',
            ],
        ],
        '#required' => FALSE,
    ];
    // Provide a separate label element for the "Re-use existing field" case
    // and place it outside the $form['add'] wrapper because those elements
    // are displayed inline.
    if ($existing_field_storage_options) {
        $form['existing_storage_label'] = [
            '#type' => 'textfield',
            '#title' => $this->t('Label'),
            '#size' => 15,
            '#states' => [
                '!visible' => [
                    ':input[name="existing_storage_name"]' => [
                        'value' => '',
                    ],
                ],
            ],
        ];
    }
    // Place the 'translatable' property as an explicit value so that contrib
    // modules can form_alter() the value for newly created fields. By default
    // we create field storage as translatable so it will be possible to enable
    // translation at field level.
    $form['translatable'] = [
        '#type' => 'value',
        '#value' => TRUE,
    ];
    $form['actions'] = [
        '#type' => 'actions',
    ];
    $form['actions']['submit'] = [
        '#type' => 'submit',
        '#value' => $this->t('Save and continue'),
        '#button_type' => 'primary',
    ];
    $form['#attached']['library'][] = 'field_ui/drupal.field_ui';
    return $form;
}