Actualización

main/inc/lib/surveymanager.lib.php

@@ -0,0 +1,127 @@
+<?php
+/* For licensing terms, see /license.txt */
+
+/**
+ * Manage the "versioning" of a conditional survey.
+ *
+ *	@package chamilo.survey
+ */
+class SurveyTree
+{
+    public $surveylist;
+    public $plainsurveylist;
+    public $numbersurveys;
+
+    /**
+     * Sets the surveylist and the plainsurveylist.
+     */
+    public function __construct()
+    {
+        // Database table definitions
+        $table_survey = Database::get_course_table(TABLE_SURVEY);
+        $table_survey_question = Database::get_course_table(TABLE_SURVEY_QUESTION);
+        $table_user = Database::get_main_table(TABLE_MAIN_USER);
+
+        // searching
+        $search_restriction = SurveyUtil::survey_search_restriction();
+        if ($search_restriction) {
+            $search_restriction = ' AND '.$search_restriction;
+        }
+
+        $course_id = api_get_course_int_id();
+
+        $sql = "SELECT
+                    survey.survey_id,
+                    survey.parent_id,
+                    survey_version,
+                    survey.code as name
+				FROM $table_survey survey
+				LEFT JOIN $table_survey_question  survey_question
+				ON survey.survey_id = survey_question.survey_id , $table_user user
+				WHERE
+					survey.c_id =  $course_id AND
+					survey_question.c_id = $course_id AND
+					survey.author = user.user_id
+				GROUP BY survey.survey_id";
+
+        $res = Database::query($sql);
+        $refs = [];
+        $list = [];
+        $plain_array = [];
+
+        while ($survey = Database::fetch_array($res, 'ASSOC')) {
+            $plain_array[$survey['survey_id']] = $survey;
+            $surveys_parents[] = $survey['survey_version'];
+            $thisref = &$refs[$survey['survey_id']];
+            $thisref['parent_id'] = $survey['parent_id'];
+            $thisref['name'] = $survey['name'];
+            $thisref['id'] = $survey['survey_id'];
+            $thisref['survey_version'] = $survey['survey_version'];
+            if ($survey['parent_id'] == 0) {
+                $list[$survey['survey_id']] = &$thisref;
+            } else {
+                $refs[$survey['parent_id']]['children'][$survey['survey_id']] = &$thisref;
+            }
+        }
+        $this->surveylist = $list;
+        $this->plainsurveylist = $plain_array;
+    }
+
+    /**
+     * This function gets the parent id of a survey.
+     *
+     * @param int $id survey id
+     *
+     * @return int survey parent id
+     *
+     * @author Julio Montoya <gugli100@gmail.com>, Dokeos
+     *
+     * @version September 2008
+     */
+    public function getParentId($id)
+    {
+        $node = $this->plainsurveylist[$id];
+        if (is_array($node) && !empty($node['parent_id'])) {
+            return $node['parent_id'];
+        } else {
+            return -1;
+        }
+    }
+
+    /**
+     * This function creates a list of all surveys id.
+     *
+     * @param array $list of nodes
+     *
+     * @return array with the structure survey_id => survey_name
+     *
+     * @author Julio Montoya <gugli100@gmail.com>
+     *
+     * @version September 2008
+     */
+    public function createList($list)
+    {
+        $result = [];
+        if (is_array($list)) {
+            foreach ($list as $key => $node) {
+                if (isset($node['children']) && is_array($node['children'])) {
+                    $result[$key] = $node['name'];
+                    $re = self::createList($node['children']);
+                    if (!empty($re)) {
+                        if (is_array($re)) {
+                            foreach ($re as $key => $r) {
+                                $result[$key] = ''.$r;
+                            }
+                        } else {
+                            $result[] = $re;
+                        }
+                    }
+                } else {
+                    $result[$key] = $node['name'];
+                }
+            }
+        }
+
+        return $result;
+    }
+}