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<?php |
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/* For licensing terms, see /license.txt */ |
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/** |
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* Manage the "versioning" of a conditional survey. |
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* |
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* @package chamilo.survey |
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*/ |
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class SurveyTree |
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{ |
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public $surveylist; |
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public $plainsurveylist; |
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public $numbersurveys; |
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/** |
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* Sets the surveylist and the plainsurveylist. |
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*/ |
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public function __construct() |
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{ |
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// Database table definitions |
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$table_survey = Database::get_course_table(TABLE_SURVEY); |
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$table_survey_question = Database::get_course_table(TABLE_SURVEY_QUESTION); |
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$table_user = Database::get_main_table(TABLE_MAIN_USER); |
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// searching |
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$search_restriction = SurveyUtil::survey_search_restriction(); |
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if ($search_restriction) { |
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$search_restriction = ' AND '.$search_restriction; |
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} |
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$course_id = api_get_course_int_id(); |
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$sql = "SELECT |
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survey.survey_id, |
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survey.parent_id, |
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survey_version, |
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survey.code as name |
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FROM $table_survey survey |
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LEFT JOIN $table_survey_question survey_question |
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ON survey.survey_id = survey_question.survey_id , $table_user user |
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WHERE |
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survey.c_id = $course_id AND |
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survey_question.c_id = $course_id AND |
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survey.author = user.user_id |
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GROUP BY survey.survey_id"; |
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$res = Database::query($sql); |
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$refs = []; |
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$list = []; |
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$plain_array = []; |
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while ($survey = Database::fetch_array($res, 'ASSOC')) { |
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$plain_array[$survey['survey_id']] = $survey; |
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$surveys_parents[] = $survey['survey_version']; |
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$thisref = &$refs[$survey['survey_id']]; |
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$thisref['parent_id'] = $survey['parent_id']; |
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$thisref['name'] = $survey['name']; |
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$thisref['id'] = $survey['survey_id']; |
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$thisref['survey_version'] = $survey['survey_version']; |
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if ($survey['parent_id'] == 0) { |
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$list[$survey['survey_id']] = &$thisref; |
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} else { |
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$refs[$survey['parent_id']]['children'][$survey['survey_id']] = &$thisref; |
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} |
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} |
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$this->surveylist = $list; |
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$this->plainsurveylist = $plain_array; |
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} |
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/** |
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* This function gets the parent id of a survey. |
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* |
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* @param int $id survey id |
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* |
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* @return int survey parent id |
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* |
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* @author Julio Montoya <[email protected]>, Dokeos |
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* |
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* @version September 2008 |
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*/ |
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public function getParentId($id) |
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{ |
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$node = $this->plainsurveylist[$id]; |
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if (is_array($node) && !empty($node['parent_id'])) { |
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return $node['parent_id']; |
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} else { |
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return -1; |
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} |
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} |
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/** |
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* This function creates a list of all surveys id. |
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* |
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* @param array $list of nodes |
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* |
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* @return array with the structure survey_id => survey_name |
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* |
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* @author Julio Montoya <[email protected]> |
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* |
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* @version September 2008 |
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*/ |
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public function createList($list) |
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{ |
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$result = []; |
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if (is_array($list)) { |
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foreach ($list as $key => $node) { |
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if (isset($node['children']) && is_array($node['children'])) { |
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$result[$key] = $node['name']; |
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$re = self::createList($node['children']); |
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if (!empty($re)) { |
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if (is_array($re)) { |
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foreach ($re as $key => $r) { |
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$result[$key] = ''.$r; |
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} |
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} else { |
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$result[] = $re; |
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} |
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} |
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} else { |
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$result[$key] = $node['name']; |
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} |
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} |
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} |
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return $result; |
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} |
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} |
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chamilo /
chamilo-lms
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