function QueueExampleForm::buildForm

Overrides FormInterface::buildForm

File

modules/queue_example/src/Form/QueueExampleForm.php, line 89

Class

QueueExampleForm

Form with examples on how to use queue.

Namespace

Code

public function buildForm(array $form, FormStateInterface $form_state) {
    // Simple counter that makes it possible to put auto-incrementing default
    // string into the string to insert.
    if (empty($form_state->get('insert_counter'))) {
        $form_state->set('insert_counter', 1);
    }
    $queue_name = $form_state->getValue('queue_name') ?: 'queue_example_first_queue';
    $items = $this->retrieveQueue($queue_name);
    $form['help'] = [
        '#type' => 'markup',
        '#markup' => '<div>' . $this->t('This page is an interface on the Drupal queue API. You can add new items to the queue, "claim" one (retrieve the next item and keep a lock on it), and delete one (remove it from the queue). Note that claims are not expired until cron runs, so there is a special button to run cron to perform any necessary expirations.') . '</div>',
    ];
    $form['wrong_queue_warning'] = [
        '#type' => 'markup',
        '#markup' => '<div>' . $this->t('Note: the example works only with the default queue implementation, which is not currently configured!!') . '</div>',
        '#access' => !$this->doesQueueUseDB(),
    ];
    $queue_names = [
        'queue_example_first_queue',
        'queue_example_second_queue',
    ];
    $form['queue_name'] = [
        '#type' => 'select',
        '#title' => $this->t('Choose queue to examine'),
        '#options' => array_combine($queue_names, $queue_names),
        '#default_value' => $queue_name,
    ];
    $form['queue_show'] = [
        '#type' => 'submit',
        '#value' => $this->t('Show queue'),
        '#submit' => [
            '::submitShowQueue',
        ],
    ];
    $form['status_fieldset'] = [
        '#type' => 'fieldset',
        '#title' => $this->t('Queue status for @name', [
            '@name' => $queue_name,
        ]),
        '#collapsible' => TRUE,
    ];
    if (count($items) > 0) {
        $form['status_fieldset']['status'] = [
            '#theme' => 'table',
            '#header' => [
                $this->t('Item ID'),
                $this->t('Claimed/Expiration'),
                $this->t('Created'),
                $this->t('Content/Data'),
            ],
            '#rows' => array_map([
                $this,
                'processQueueItemForTable',
            ], $items),
        ];
    }
    else {
        $form['status_fieldset']['status'] = [
            '#type' => 'markup',
            '#markup' => $this->t('There are no items in the queue.'),
        ];
    }
    $form['insert_fieldset'] = [
        '#type' => 'fieldset',
        '#title' => $this->t('Insert into @name', [
            '@name' => $queue_name,
        ]),
    ];
    $form['insert_fieldset']['string_to_add'] = [
        '#type' => 'textfield',
        '#size' => 10,
        '#default_value' => $this->t('item @counter', [
            '@counter' => $form_state->get('insert_counter'),
        ]),
    ];
    $form['insert_fieldset']['add_item'] = [
        '#type' => 'submit',
        '#value' => $this->t('Insert into queue'),
        '#submit' => [
            '::submitAddQueueItem',
        ],
    ];
    $form['claim_fieldset'] = [
        '#type' => 'fieldset',
        '#title' => $this->t('Claim from queue'),
        '#collapsible' => TRUE,
    ];
    $form['claim_fieldset']['claim_time'] = [
        '#type' => 'radios',
        '#title' => $this->t('Claim time, in seconds'),
        '#options' => [
            0 => $this->t('none'),
            5 => $this->t('5 seconds'),
            60 => $this->t('60 seconds'),
        ],
        '#description' => $this->t('This time is only valid if cron runs during this time period. You can run cron manually below.'),
        '#default_value' => $form_state->getValue('claim_time') ?: 5,
    ];
    $form['claim_fieldset']['claim_item'] = [
        '#type' => 'submit',
        '#value' => $this->t('Claim the next item from the queue'),
        '#submit' => [
            '::submitClaimItem',
        ],
    ];
    $form['claim_fieldset']['claim_and_delete_item'] = [
        '#type' => 'submit',
        '#value' => $this->t('Claim the next item and delete it'),
        '#submit' => [
            '::submitClaimDeleteItem',
        ],
    ];
    $form['claim_fieldset']['run_cron'] = [
        '#type' => 'submit',
        '#value' => $this->t('Run cron manually to expire claims'),
        '#submit' => [
            '::submitRunCron',
        ],
    ];
    $form['delete_queue'] = [
        '#type' => 'submit',
        '#value' => $this->t('Delete the queue and items in it'),
        '#submit' => [
            '::submitDeleteQueue',
        ],
    ];
    return $form;
}