rdf_example.install

<?php


/**
 * @file
 * Install file for RDF Example module.
 *
 * To demonstrate hook_rdf_mapping, this module creates it's own node type. For
 * more information on creating node types, see Node Example.
 */

/**
 * Implements hook_install().
 *
 * - Create photo, summary fields.
 * - Create photo, summary instances.
 *
 * @see node_type_set_defaults()
 * @see field_info_instance()
 * @see field_update_instance()
 * @see field_create_field()
 * @see field_create_instance()
 *
 * @ingroup rdf_example
 */
function rdf_example_install() {
    // Use get_t() to get the name of our localization function for translation
    // during install, when t() is not available.
    $t = get_t();
    // Define the node type.
    $rdf_example = array(
        'type' => 'recipe',
        'name' => $t('Recipe'),
        'base' => 'node_content',
        'description' => $t('The recipe node is defined to demonstrate RDF mapping.'),
    );
    // Set additional defaults and save the content type.
    $content_type = node_type_set_defaults($rdf_example);
    node_type_save($content_type);
    // Create all the fields we are adding to our content type.
    // http://api.drupal.org/api/function/field_create_field/7
    foreach (_rdf_example_installed_fields() as $field) {
        field_create_field($field);
    }
    // Create all the instances for our fields.
    // http://api.drupal.org/api/function/field_create_instance/7
    foreach (_rdf_example_installed_instances() as $instance) {
        $instance['entity_type'] = 'node';
        $instance['bundle'] = $rdf_example['type'];
        field_create_instance($instance);
    }
}

/**
 * Return a structured array defining the fields created by this content type.
 *
 * @ingroup rdf_example
 */
function _rdf_example_installed_fields() {
    $t = get_t();
    return array(
        'recipe_photo' => array(
            'field_name' => 'recipe_photo',
            'cardinality' => 1,
            'type' => 'image',
        ),
        'recipe_summary' => array(
            'field_name' => 'recipe_summary',
            'cardinality' => 1,
            'type' => 'text',
            'settings' => array(
                'max_length' => 500,
            ),
        ),
    );
}

/**
 * Return a structured array defining the instances for this content type.
 *
 * @ingroup rdf_example
 */
function _rdf_example_installed_instances() {
    $t = get_t();
    return array(
        'recipe_photo' => array(
            'field_name' => 'recipe_photo',
            'label' => $t('Photo of the prepared dish'),
        ),
        'recipe_summary' => array(
            'field_name' => 'recipe_summary',
            'label' => $t('Short summary describing the dish'),
            'widget' => array(
                'type' => 'text_textarea',
            ),
        ),
    );
}

/**
 * Implements hook_uninstall().
 *
 * @ingroup rdf_example
 */
function rdf_example_uninstall() {
    // Delete recipe content.
    $sql = 'SELECT nid FROM {node} n WHERE n.type = :type';
    $result = db_query($sql, array(
        ':type' => 'recipe',
    ));
    $nids = array();
    foreach ($result as $row) {
        $nids[] = $row->nid;
    }
    node_delete_multiple($nids);
    // Delete field instances for now.
    // Check status of http://drupal.org/node/1015846
    $instances = field_info_instances('node', 'recipe');
    foreach ($instances as $instance_name => $instance) {
        field_delete_instance($instance);
    }
    // Delete node type.
    node_type_delete('recipe');
    field_purge_batch(1000);
}