<?php
/**
 * Extend class to add own methods as needed
 */
class DigiMinaSubCompetency extends ElggObject {

	/**
	 * Set attributes as needed.
	 */
	protected function initializeAttributes() {
		parent::initializeAttributes();

		$this->attributes['subtype'] = 'dmsubcompetency';
		$this->attributes['access_id'] = ACCESS_PUBLIC;
	}

	/**
	 * Get list of performance levels
	 *
	 * @param int $limit  Limit
	 * @param int $offset Offset
	 * @param bool $count Count
	 */
	public function getPerformanceLevels($limit = 10, $offset = 0, $count = false) {
        $options = array(
            'types' => 'object',
            'subtypes' => 'dmperformancelevel',
            'limit' => $limit,
            'offset' => $offset,
            'count' => $count,
			'container_guid' => $this->getGUID(),
			'order_by_metadata' => array('name' => 'level', 'direction' => 'ASC', 'as' => 'integer')
        );

        return elgg_get_entities_from_metadata($options);
	}

    /**
     * Returns next subcompetency from the same competency if possible
     *
     * @return mixed
     */
    public function getNextSubCompetency() {
        $options = array(
            'types' => 'object',
            'subtypes' => 'dmsubcompetency',
            'limit' => 1,
            'container_guid' => $this->getContainerGUID(),
            'metadata_name_value_pairs' => array('name' => 'level', 'value' => ((int)$this->level + 1))
        );
        $next = elgg_get_entities_from_metadata($options);
        if (is_array($next) && sizeof($next)) {
            return $next[0];
        }
        return false;
    }
}