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✏️ Editing: class-quiz-form-model.php

<?php
if ( ! defined( 'ABSPATH' ) ) {
	die();
}

/**
 * Author: Hoang Ngo
 */
class Forminator_Quiz_Model extends Forminator_Base_Form_Model {

/**
	 * Module slug
	 *
	 * @var string
	 */
	public static $module_slug = 'quiz';

/**
	 * @var string
	 */
	protected $post_type = 'forminator_quizzes';

/**
	 * @var array
	 */
	public $results = array();

/**
	 * @var array
	 */
	public $questions = array();

/**
	 * @var string
	 */
	public $quiz_type = '';

/**
	 * @since 1.0
	 * @return array
	 */
	public function get_maps() {
		return array(
			array(
				'type'     => 'meta',
				'property' => 'questions',
				'field'    => 'questions',
			),
			array(
				'type'     => 'meta',
				'property' => 'results',
				'field'    => 'results',
			),
			array(
				'type'     => 'meta',
				'property' => 'quiz_type',
				'field'    => 'quiz_type',
			),
		);
	}

/**
	 * @since 1.0
	 *
	 * @param $slug
	 *
	 * @return array|bool
	 */
	public function getRightAnswerForQuestion( $slug ) {
		if ( ! empty( $this->questions ) ) {
			foreach ( $this->questions as $question ) {
				if ( $question['slug'] === $slug ) {
					$answers = $question['answers'];
					$picked  = null;
					$index   = - 1;
					foreach ( $answers as $k => $answer ) {
						if ( isset( $answer['toggle'] ) && filter_var( $answer['toggle'], FILTER_VALIDATE_BOOLEAN ) === true ) {
							$picked = $answer;
							$index  = $k;
							break;
						}
					}

return array( $index, $picked );
				}
			}
		}

return array( false, false );
	}

/**
	 * Return questions
	 *
	 * @since 1.0
	 *
	 * @param $slug
	 *
	 * @return mixed
	 */
	public function getQuestion( $slug ) {
		if ( ! empty( $this->questions ) ) {
			foreach ( $this->questions as $question ) {
				if ( $question['slug'] === $slug ) {
					return $question;
				}
			}
		}

return false;
	}

/**
	 * Return answer
	 *
	 * @since 1.0
	 *
	 * @param $slug
	 * @param $index
	 *
	 * @return bool
	 */
	public function getAnswer( $slug, $index ) {
		if ( ! empty( $this->questions ) ) {
			foreach ( $this->questions as $question ) {
				if ( $question['slug'] === $slug ) {
					$answers = $question['answers'];

return $answers[ $index ];
				}
			}
		}

return false;
	}

/**
	 * Get result from answer
	 *
	 * @since 1.0
	 *
	 * @param $slug
	 * @param $index
	 *
	 * @return mixed
	 */
	public function getResultFromAnswer( $slug, $index ) {
		$this->getAnswer( $slug, $index );
		$answer = $this->getAnswer( $slug, $index );

if ( isset( $answer['result'] ) ) {
			return $answer['result'];
		}

return false;
	}

/**
	 * @since 1.0
	 * @since 1.3 use results instead of non existent value of priority_order
	 * @return mixed
	 */
	public function getPriority() {
		foreach ( $this->results as $result ) {
			if ( isset( $result['order'] ) && isset( $result['slug'] ) && 0 === (int) $result['order'] ) {
				return $result['slug'];

}
		}

return false;
	}

/**
	 * Return results
	 *
	 * @since 1.0
	 * @return array
	 */
	public function getResults() {
		$results = array();

if ( empty( $this->results ) ) {
			return $results;
		}

foreach ( $this->results as $slug => $result ) {
			$results[] = $result;
		}

return $results;
	}

/**
	 * Get result
	 *
	 * @since 1.0
	 *
	 * @param $slug
	 *
	 * @return mixed|null
	 */
	public function getResult( $slug ) {
		if ( ! empty( $this->results ) ) {
			foreach ( $this->results as $result ) {
				if ( $result['slug'] === $slug ) {
					return $result;
				}
			}
		}

return null;
	}

/**
	 * Prepare data for preview
	 *
	 * @param object $form_model Model.
	 * @param array  $data Passed data.
	 *
	 * @return object
	 */
	public static function prepare_data_for_preview( $form_model, $data ) {
		if ( isset( $data['type'] ) ) {
			$form_model->quiz_type = $data['type'];
		}

// build the field.
		$questions = array();
		if ( isset( $data['questions'] ) ) {
			$questions = $data['questions'];
			unset( $data['questions'] );
		}

$form_model->questions = $questions;

return $form_model;
	}

/**
	 * Export integrations setting
	 *
	 * @param $exportable_data
	 * @return array
	 */
	public function export_integrations_data( $exportable_data ) {
		return $exportable_data;
	}

/**
	 * Import Integrations data model
	 *
	 * @since 1.4
	 *
	 * @param $model
	 * @param $import_data
	 * @param $module
	 *
	 * @return Forminator_Base_Form_Model
	 */
	public static function import_integrations_data( $model, $import_data, $module ) {
		return $model;
	}

/**
	 * Get result of nowrong quiz
	 *
	 * @since 1.6.1
	 *
	 * @param $answer_results
	 *
	 * @return array contains `title`, `order`, `slug` if found, return empty array otherwise
	 */
	public function get_nowrong_result( $answer_results ) {
		/**
		 * $answer_results FORMAT :
		 * {
		 *      'result-id-1' => `COUNT`,
		 *      'result-id-2' => `COUNT`,
		 * }
		 */

// picking top results.
		// sort by value since, count is on value,.
		// do reverse sort, to get bigger value on top.
		arsort( $answer_results );

$top_results = array();
		$top_count   = 0;

foreach ( $answer_results as $result_id => $count ) {
			// FIRST item always have BIGGEST count, means its prioritized.
			if ( empty( $top_results ) ) {
				$top_results[] = $result_id;
				$top_count     = $count;
			} else {

// already in the pool.
				if ( in_array( $result_id, $top_results, true ) ) {
					continue;
				}
				// same $top_count found, means the this should be considered too!
				if ( $count === $top_count ) {
					$top_results[] = $result_id;
				} else {

// if count not same as $top_count, this item onwards can safely ignored.
					// since it will always be less than BIGGEST count.
					break;
				}
			}
		}

// somehow top results is empty,.
		// we might got bad $answer_results.
		if ( empty( $top_results ) ) {
			return array();
		}

// default top_result is first on the pool.
		$top_result_id = $top_results[0];
		$top_result    = $this->getResult( $top_result_id );

// somehow the result could not be found, odin forbid.
		if ( is_null( $top_result ) ) {
			return array();
		}

// God knows why `order` could not be found,.
		// but we might as well set it as 0 so it will get top priority.
		// remember smaller `order` value means it gets more prioritized.
		$top_priority = isset( $top_result['order'] ) ? (int) $top_result['order'] : 0;

// > (more than) 1 result happening.
		if ( count( $top_results ) > 1 ) {
			foreach ( $top_results as $top_result_id ) {
				$top_result_to_compare = $this->getResult( $top_result_id );

if ( is_null( $top_result_to_compare ) ) {
					continue;
				}

if ( ! isset( $top_result_to_compare['order'] ) ) {
					continue;
				}

$top_priority_to_compare = (int) $top_result_to_compare['order'];

// remember smaller `order` value means it gets more prioritized.
				if ( $top_priority_to_compare < $top_priority ) {
					$top_result   = $top_result_to_compare;
					$top_priority = $top_priority_to_compare;
				}
			}
		}

return $top_result;

}

/**
	 * Check whether answer is correct for a question on Knowledge Quiz
	 *
	 * @since 1.6.2
	 *
	 * @param string $slug         question slug.
	 * @param  int    $answer_index answer index.
	 *
	 * @return bool
	 */
	public function is_correct_answer_for_question( $slug, $answer_index ) {
		if ( ! empty( $this->questions ) ) {
			foreach ( $this->questions as $question ) {
				if ( isset( $question['slug'] ) && $question['slug'] === $slug ) {
					$answers = $question['answers'];
					foreach ( $answers as $k => $answer ) {
						if ( isset( $answer['toggle'] ) && filter_var( $answer['toggle'], FILTER_VALIDATE_BOOLEAN ) === true ) {
							if ( (int) $answer_index === (int) $k ) {
								return true;
							}
						}
					}
				}
			}
		}

return false;
	}

/**
	 * Find Correct Answers for a question on knowledge quiz
	 *
	 * @since 1.6.2
	 *
	 * @param string $slug question slug.
	 *
	 * @return array
	 */
	public function get_correct_answers_for_question( $slug ) {
		$correct_answers = array();
		if ( ! empty( $this->questions ) ) {
			foreach ( $this->questions as $question ) {
				if ( isset( $question['slug'] ) && $question['slug'] === $slug ) {
					$answers = $question['answers'];
					foreach ( $answers as $k => $answer ) {
						if ( isset( $answer['toggle'] ) && filter_var( $answer['toggle'], FILTER_VALIDATE_BOOLEAN ) === true ) {
							$answer['id']      = $k;
							$correct_answers[] = $answer;
						}
					}
				}
			}
		}

return $correct_answers;
	}

/**
	 * Check whether entry share-able
	 *
	 * @since 1.7
	 * @return bool
	 */
	public function is_entry_share_enabled() {
		$quiz_id        = (int) $this->id;
		$quiz_settings  = $this->settings;
		$global_enabled = parent::is_entry_share_enabled();

$enabled = isset( $quiz_settings['enable-share'] ) ? $quiz_settings['enable-share'] : false;
		$enabled = filter_var( $enabled, FILTER_VALIDATE_BOOLEAN );

$enabled = $global_enabled || $enabled;

/**
		 * Filter is entry share enabled for Quiz
		 *
		 * @since 1.7
		 *
		 * @param bool  $enabled
		 * @param bool  $global_enabled
		 * @param int   $quiz_id
		 * @param array $form_settings
		 *
		 * @return bool
		 */
		$enabled = apply_filters( 'forminator_quiz_is_result_share_enabled', $enabled, $global_enabled, $quiz_id, $quiz_settings );

return $enabled;
	}

/**
	 * Get the count of answered questions for multi-answer questions
	 *
	 * @since ?
	 * @return int
	 */
	public function count_answered_questions( $questions, $user_answers ) {
		$answered_questions = 0;

foreach ( $questions as $key => $val ) {
			foreach ( $user_answers as $a_key => $a_val ) {
				if ( false !== strpos( $a_key, $val['slug'] ) ) {
					$answered_questions ++;
					break;
				}
			}
		}

return $answered_questions;
	}
}

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