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<?php
/**
* Quiz creation AI repository.
*
* @since 4.8.0
*
* @package LearnDash\Core
*/
namespace LearnDash\Core\Modules\AI\Quiz_Creation;
use LDLMS_Post_Types;
use LearnDash\Core\Modules\AI\Quiz_Creation;
use LearnDash\Core\Modules\AI\Quiz_Creation\DTO;
/**
* Quiz creation AI Repository class.
*
* @since 4.8.0
*/
class Repository {
/**
* Create a quiz.
*
* @since 4.8.0
*
* @throws \Exception Throw exception if quiz can't be created.
*
* @param DTO\Quiz $quiz Quiz arguments.
*
* @return int New Quiz ID.
*/
public function create_quiz( DTO\Quiz $quiz ): int {
/**
* Define type.
*
* @var int|\WP_Error
*/
$quiz_id = wp_insert_post(
[
'post_title' => $quiz->title,
'post_type' => learndash_get_post_type_slug( LDLMS_Post_Types::QUIZ ),
'post_status' => 'publish',
],
true
);
if ( is_wp_error( $quiz_id ) ) {
throw new \Exception( $quiz_id->get_error_message() );
}
if ( $quiz_id === 0 ) {
throw new \Exception( 'Unknown error creating quiz: ' . $quiz->title );
}
$pro_quiz = new \WpProQuiz_Controller_Quiz();
$pro_quiz->route(
[
'action' => 'addUpdateQuiz',
'quizId' => 0, // New pro quiz.
'post_id' => $quiz_id,
],
[
'form' => [],
'post_ID' => $quiz_id,
]
);
learndash_course_add_child_to_parent( $quiz->course_id, $quiz_id, $quiz->parent_id );
return $quiz_id;
}
/**
* Create a question.
*
* @since 4.8.0
*
* @throws \Exception Throw exception if question can't be created.
*
* @param int $quiz_id Quiz WP_Post ID.
* @param DTO\Question $question Question arguments.
*
* @return int New question ID.
*/
public function create_question( int $quiz_id, DTO\Question $question ) {
global $wpdb;
$post_args = array(
'action' => 'new_step',
'post_type' => learndash_get_post_type_slug( LDLMS_Post_Types::QUESTION ),
'post_status' => 'publish',
'post_title' => $question->title,
'post_content' => '',
);
/**
* Define type.
*
* @var int|\WP_Error
*/
$question_id = wp_insert_post( $post_args, true );
if ( is_wp_error( $question_id ) ) {
throw new \Exception( $question_id->get_error_message() );
}
if ( $question_id === 0 ) {
throw new \Exception( 'Unknown error creating question: ' . $question->title );
}
$wpdb->update( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
$wpdb->posts,
array(
'guid' => add_query_arg(
array(
'post_type' => learndash_get_post_type_slug( LDLMS_Post_Types::QUESTION ),
'p' => $question_id,
),
home_url()
),
),
array( 'ID' => $question_id )
);
$question_pro_id = learndash_update_pro_question( 0, $post_args );
if ( empty( $question_pro_id ) ) {
throw new \Exception( 'Failed to fetch question pro ID after creating question: ' . $question->title );
}
$questions = get_post_meta( $quiz_id, 'ld_quiz_questions', true );
$questions = is_array( $questions ) ? $questions : [];
$questions[ $question_id ] = $question_pro_id;
update_post_meta( $quiz_id, 'ld_quiz_questions', $questions );
update_post_meta( $question_id, 'question_pro_id', absint( $question_pro_id ) );
learndash_proquiz_sync_question_fields( $question_id, $question_pro_id );
learndash_update_setting( $question_id, 'quiz', $quiz_id );
update_post_meta( $question_id, 'quiz_id', $quiz_id );
$question_mapper = new \WpProQuiz_Model_QuestionMapper();
$question_model = $question_mapper->fetch( $question_pro_id );
$question_pro_params = [
'_answerData' => [],
'_answerType' => $question->type,
];
$answer_text = '';
$sort_string = '';
$grading_progression = 'not-graded-none';
$default_answer_data = [
'_answer' => $answer_text,
'_correct' => false,
'_graded' => '1',
'_gradedType' => 'text',
'_gradingProgression' => $grading_progression,
'_html' => false,
'_points' => 1,
'_sortString' => $sort_string,
'_sortStringHtml' => false,
'_type' => 'answer',
];
foreach ( $question->answers as $answer_key => $answer ) {
if ( $question->type === Quiz_Creation::$question_type_key_matrix_sorting_choice ) {
$answer_text = $answer->params['criterion'];
$sort_string = $answer->params['criterion_value'];
} elseif ( $question->type === Quiz_Creation::$question_type_key_fill_in_the_blank ) {
// Add blank line if there's no placeholder by default.
$question_title = ! preg_match( '/_{2,}/', $question->title )
? $question->title . ': ____'
: $question->title;
$answer_text = preg_replace( '/_{2,}/', '{' . $answer->title . '}', $question_title );
} elseif ( $question->type === Quiz_Creation::$question_type_key_essay ) {
$answer_text = $answer->title;
$grading_progression = '';
} else {
$answer_text = $answer->title;
}
$answer_data = wp_parse_args(
[
'_answer' => $answer_text,
'_correct' => $answer->is_correct,
'_gradingProgression' => $grading_progression,
'_sortString' => $sort_string,
],
$default_answer_data
);
$question_pro_params['_answerData'][] = $answer_data;
}
if ( ! empty( $question->title ) ) {
$question_text = $question->title;
if ( $question->type === Quiz_Creation::$question_type_key_fill_in_the_blank ) {
$question_text = __( 'Fill in the blank the following statement', 'learndash' );
}
$question_pro_params['_question'] = $question_text;
wp_update_post(
[
'ID' => $question_id,
'post_content' => wp_slash( $question_pro_params['_question'] ),
]
);
}
$question_model->set_array_to_object( $question_pro_params );
$question_mapper->save( $question_model );
return $question_id;
}
}