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<?php |
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|
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namespace LearnPress\Databases; |
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|
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use Exception; |
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use LearnPress\Filters\QuestionAnswersFilter; |
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use LP_Database; |
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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 QuestionAnswersDB |
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* |
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* @instead of LP_Question_Answers_DB |
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* @since 4.2.9 |
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* @version 1.0.1 |
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*/ |
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class QuestionAnswersDB extends 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 question answers |
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* |
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* @throws Exception |
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*/ |
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public function get_question_answers( QuestionAnswersFilter $filter, &$total_rows = 0 ) { |
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$filter->fields = array_merge( $filter->all_fields, $filter->fields ); |
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|
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if ( empty( $filter->collection ) ) { |
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$filter->collection = $this->tb_lp_question_answers; |
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} |
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|
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if ( empty( $filter->collection_alias ) ) { |
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$filter->collection_alias = 'qa'; |
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} |
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|
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// By question answer id |
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if ( ! empty( $filter->question_answer_id ) ) { |
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$filter->where[] = $this->wpdb->prepare( "AND {$filter->collection_alias}.question_answer_id = %d", $filter->question_answer_id ); |
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} |
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|
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// By question id |
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if ( ! empty( $filter->question_id ) ) { |
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$filter->where[] = $this->wpdb->prepare( "AND {$filter->collection_alias}.question_id = %d", $filter->question_id ); |
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} |
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|
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// By title |
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if ( ! empty( $filter->title ) ) { |
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$filter->where[] = $this->wpdb->prepare( "AND {$filter->collection_alias}.title LIKE %s", '%' . $this->wpdb->esc_like( $filter->title ) . '%' ); |
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} |
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|
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return $this->execute( $filter, $total_rows ); |
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} |
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|
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/** |
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* Get last answer number order on question. |
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* |
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* @throws Exception |
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*/ |
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public function get_last_number_order( int $question_id = 0 ): int { |
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$query = $this->wpdb->prepare( |
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"SELECT MAX(`order`) |
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FROM $this->tb_lp_question_answers |
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WHERE question_id = %d", |
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$question_id |
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); |
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|
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$number_order = intval( $this->wpdb->get_var( $query ) ); |
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|
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$this->check_execute_has_error(); |
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|
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return $number_order; |
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} |
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} |
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|
