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<?php |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; // Exit if accessed directly |
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} |
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|
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/** |
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* Class LP_Lesson_DB |
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* |
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* @since 3.2.7.4 |
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* @author tungnx |
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* @version 1.0.0 |
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*/ |
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class LP_Quiz_DB extends LP_Database { |
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private static $_instance; |
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|
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protected function __construct() { |
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parent::__construct(); |
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} |
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|
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public static function getInstance() { |
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if ( is_null( self::$_instance ) ) { |
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self::$_instance = new self(); |
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} |
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|
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return self::$_instance; |
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} |
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|
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/** |
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* Get quiz_id of question |
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* |
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* @param int $question_id |
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* |
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* @return int |
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*/ |
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public function get_quiz_id_by_question( int $question_id = 0 ) : int { |
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$query = $this->wpdb->prepare( |
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" |
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SELECT quiz_id |
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FROM $this->tb_lp_quiz_questions |
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WHERE question_id = %d", |
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$question_id |
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); |
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|
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return (int) $this->wpdb->get_var( $query ); |
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} |
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|
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/** |
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* Get total questions assign for Quiz |
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* |
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* @param int $quiz_id |
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* @author tungnx |
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* @since 4.1.4.1 |
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* @version 1.0.0 |
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* @return int |
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*/ |
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public function get_total_question( int $quiz_id = 0 ) : int { |
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$query = $this->wpdb->prepare( |
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"SELECT COUNT(question_id) AS total |
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FROM $this->tb_lp_quiz_questions |
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WHERE quiz_id = %d", |
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$quiz_id |
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); |
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|
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return (int) $this->wpdb->get_var( $query ); |
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} |
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} |
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|
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