How do I add a new condition in Rules 2?

Question

I can't get my new Rules' condition to work.

I wrote the (simple) code below in includes/MYMODULE.rules.inc, and nothing appears in the condition list.

/**
 * Implementation of hook_rules_condition_info().
 */
function MYMODULE_rules_condition_info() {
    return array(
        'MYMODULE_rules_condition_MYCONDITION' => array(
            'label' => t('My label'),
            'group' => 'My very own group',
        )
    );
}

/**
 * Condition
 */
function MYMODULE_rules_condition_MYCONDITION() {
    // logic
    return TRUE;
}

I have already tried to flush the Drupal cache (as it seems to me that Rules uses a cache system).

Answer 1

Read Rules 2.x / Drupal 7; I think you can find what you want, there.

Answer 2

Custom Rules condition:

/**
 * Implements of hook_rules_condition_info().
 */
function your_module_rules_condition_info() {
  return array(
    'your_module_condition_package_type' => array(
      'label' => t('Type of the package'),
      'arguments' => array(
        'package_id' => array('type' => 'value', 'label' => t('The type of the purchased package.')),
        'package_type' => array('type' => 'string', 'label' => t('The type of the purchased package is')),
      ),
      'module' => 'your_module',
      'group' => 'My very own group',
    ),
  );
}
/**
 * Condition packages_condition_packagetype
 */
function your_module_condition_package_type($pid, $type) {
  $package = package_load($pid);
  return ($package->type == $type) ? true : false;
}

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