function merci_uninstall in MERCI (Manage Equipment Reservations, Checkout and Inventory) 7.2

Same name and namespace in other branches

1. 6.2 merci.install \merci_uninstall()
2. 6 merci.install \merci_uninstall()

Implements hook_uninstall().

File

./merci.install, line 24

merci Installer / Uninstaller

Code

function merci_uninstall() {

  // Delete the vocabulary.
  $vid = variable_get('merci_equipment_grouping_vid', 0);
  taxonomy_vocabulary_delete($vid);

  // Loop over each of the fields defined by this module and delete
  // all instances of the field, their data, and the field itself.
  // http://api.drupal.org/api/function/field_delete_field/7
  foreach (array_keys(_merci_installed_fields()) as $field) {
    field_delete_field($field);
  }

  // Loop over any remaining field instances attached to the node_example
  // content type (such as the body field) and delete them individually.
  // http://api.drupal.org/api/function/field_delete_field/7
  $instances = field_info_instances('node', 'merci_reservation');
  foreach ($instances as $instance_name => $instance) {
    field_delete_instance($instance);
  }

  // Remove all MERCI variables.
  $variables = db_query("SELECT name FROM {variable} WHERE name LIKE 'merci_%'");
  foreach ($variables as $variable) {
    variable_del($variable->name);
  }

  // Remove all MERCI all associated nodes

  //No longer removes content types
  $content_types = db_query("SELECT type FROM {merci_node_type} WHERE merci_type_setting <> :type_setting", array(
    ':type_setting' => 'disabled',
  ));
  $nids = array();
  foreach ($content_types as $content_type) {

    // TODO Please convert this statement to the D7 database API syntax.
    $nodes = db_query("SELECT nid FROM {node} n WHERE n.type = :type", array(
      ':type' => $content_type->type,
    ));
    foreach ($nodes as $node) {
      $nids[] = $node->nid;
    }
  }

  // Remove the programatically created reservation node type
  // and all associated nodes.
  // TODO Please convert this statement to the D7 database API syntax.
  $nodes = db_query("SELECT nid FROM {node} n WHERE n.type = :type", array(
    ':type' => 'merci_reservation',
  ));
  foreach ($nodes as $node) {
    $nids[] = $node->nid;
  }

  // Delete all the nodes at once
  // http://api.drupal.org/api/function/node_delete_multiple/7
  node_delete_multiple($nids);

  // TODO: http://drupal.org/node/943588

  //node_type_delete('merci_reservation');
  field_purge_batch(1000);
}