block_example_block

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developer/examples/block_example.module, строка 15

Версии
5 – 6
block_example_block($op = 'list', $delta = 0, $edit = array())

Реализация hook_block().

Этот хук не только сообщает Друпалу какие блоки предоставляет модуль, а и задает содержание этих блоков.

Код

<?php
function block_example_block($op = 'list', $delta = 0, $edit = array()) {
  // The $op parameter determines what piece of information is being requested.
  switch ($op) {
    case 'list':
      // If $op is "list", we just need to return a list of block descriptions.
      // This is used to provide a list of possible blocks to the administrator,
      // end users will not see these descriptions.
      $blocks[0]['info'] = t('Example: configurable text string');
      $blocks[1]['info'] = t('Example: empty block');
      return $blocks;
    case 'configure':
      // If $op is "configure", we need to provide the administrator with a
      // configuration form. The $delta parameter tells us which block is being
      // configured. In this example, we'll allow the administrator to customize
      // the text of the first block.
      $form = array();
      if ($delta == 0) {
        // All we need to provide is a text field, Drupal will take care of
        // the other block configuration options and the save button.
        $form['block_example_string'] = array(
          '#type' => 'textfield',
          '#title' => t('Block contents'),
          '#size' => 60,
          '#description' => t('This string will appear in the example block.'),
          '#default_value' =>
            variable_get('block_example_string',  t('Some example content.')),
        );
      }
      return $form;
    case 'save':
      // If $op is "save", we need to save settings from the configuration form.
      // Since the first block is the only one that allows configuration, we
      // need to check $delta to make sure we only save it.
      if ($delta == 0) {
        // Have Drupal save the string to the database.
        variable_set('block_example_string', $edit['block_example_string']);
      }
      return;
    case 'view': default:
      // If $op is "view", then we need to generate the block for display
      // purposes. The $delta parameter tells us which block is being requested.
      switch ($delta) {
        case 0:
          // The subject is displayed at the top of the block. Note that it
          // should be passed through t() for translation.
          $block['subject'] = t('Title of block #1');
          // The content of the block is typically generated by calling a custom
          // function.
          $block['content'] = block_example_contents(1);
          break;
        case 1:
          $block['subject'] = t('Title of block #2');
          $block['content'] = block_example_contents(2);
          break;
      }
      return $block;
  }
}
?>
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