| [26] | 1 | <?php
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| 2 | // Survey class as intermediate for storing data from the site to the RDF database
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| 3 | require 'rdfConstants.php';
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| 4 |
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| 5 | // Include RAP Library to write RDF files
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| 6 | define("RDFAPI_INCLUDE_DIR", "rdfapi/");
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| 7 | include(RDFAPI_INCLUDE_DIR . "RDFAPI.php");
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| 8 |
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| 9 |
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| 10 |
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| 11 | class SurveyDatabaseInterface
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| [28] | 12 | {
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| [26] | 13 | protected $surveyRDFWriter;
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| 14 | protected $surveyRDFReader;
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| 15 |
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| 16 |
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| [28] | 17 | public function __construct($surveyID=null)
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| [26] | 18 | {
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| [28] | 19 | if($surveyID == null)
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| 20 | $surveyUID = md5( uniqid(rand(), true) );
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| 21 | else
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| 22 | $surveyUID = $surveyID;
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| 23 |
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| [26] | 24 | $this->surveyRDFWriter = new SurveyRDFWriter($surveyUID);
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| 25 | $this->surveyRDFReader = new SurveyRDFReader($surveyUID);
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| 26 | }
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| 27 |
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| 28 | public function setSurveyInfo($survey)
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| 29 | {
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| 30 | $sTitle = $survey['surveyTitle'];
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| 31 | $sDescription = $survey['surveyDescription'];
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| 32 |
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| 33 | $this->surveyRDFWriter->createSurvey($sTitle,$sDescription);
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| 34 |
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| 35 | $qNumber = 1;
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| 36 | while (isset($survey['questionTitle'.$qNumber]))
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| 37 | {
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| 38 | $qTitle = $survey['questionTitle'.$qNumber];
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| 39 | $qDescription = $survey['questionDescription'.$qNumber];
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| 40 | $qType = $survey['questionType'.$qNumber];
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| [31] | 41 | if (isset($survey['questionID'.$qNumber]))
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| 42 | $qID = $survey['questionID'.$qNumber];
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| 43 | else
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| 44 | $qID = md5( uniqid(rand(), true) );
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| [26] | 45 |
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| 46 | $qAnswers = array();
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| 47 | $aNumber = 1;
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| 48 | while (isset($survey['q'.$qNumber.'ans'.$aNumber]))
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| 49 | {
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| 50 | $aArray = array();
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| 51 | $aArray['Title'] = $survey['q'.$qNumber.'ans'.$aNumber];
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| 52 | $aArray['Description'] = 'answerDescription'.$aNumber;
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| 53 | $qAnswers[] = $aArray;
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| 54 |
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| 55 | $aNumber++;
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| 56 | }
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| 57 |
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| [31] | 58 | $this->surveyRDFWriter->addQuestion($qTitle,$qDescription,$qType,$qID,$qAnswers);
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| [26] | 59 |
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| 60 | $qNumber++;
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| 61 | }
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| 62 |
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| 63 | $this->surveyRDFWriter->saveSurvey();
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| 64 | }
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| 65 |
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| 66 | public function getSurveyInfo()
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| 67 | {
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| 68 | $surveyInfo = array();
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| 69 |
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| 70 | $resultSurvey = $this->surveyRDFReader->getSurveyInfo();
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| 71 |
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| [28] | 72 | $surveyInfo['surveyID'] = substr($resultSurvey[0][0]['?uid'],9,strlen($resultSurvey[0][0]['?uid'])-11);
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| [26] | 73 | $surveyInfo['surveyTitle'] = substr($resultSurvey[0][0]['?title'],9,strlen($resultSurvey[0][0]['?title'])-11);
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| 74 | $surveyInfo['surveyDescription'] = substr($resultSurvey[0][0]['?description'],9,strlen($resultSurvey[0][0]['?description'])-11);
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| 75 |
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| 76 | for($qNumber = 1;$qNumber<=sizeof($resultSurvey[1][0]);$qNumber++)
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| 77 | {
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| [31] | 78 | $surveyInfo['questionID'.$qNumber] = substr($resultSurvey[1][3][$qNumber-1]['?questionID'],9,strlen($resultSurvey[1][3][$qNumber-1]['?questionID'])-11);
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| [26] | 79 | $surveyInfo['questionTitle'.$qNumber] = substr($resultSurvey[1][0][$qNumber-1]['?questionTitle'],9,strlen($resultSurvey[1][0][$qNumber-1]['?questionTitle'])-11);
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| 80 | $surveyInfo['questionDescription'.$qNumber] = substr($resultSurvey[1][1][$qNumber-1]['?questionDescription'],9,strlen($resultSurvey[1][1][$qNumber-1]['?questionDescription'])-11);
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| 81 | $surveyInfo['questionType'.$qNumber] = substr($resultSurvey[1][2][$qNumber-1]['?questionType'],9,strlen($resultSurvey[1][2][$qNumber-1]['?questionType'])-11);
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| 82 |
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| [31] | 83 | $resultAnswers = $this->surveyRDFReader->readSurveyAnswers($surveyInfo['questionID'.$qNumber]);
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| 84 |
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| [26] | 85 | if ($resultAnswers != null)
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| 86 | {
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| 87 | for($aNumber = 1;$aNumber<=sizeof($resultAnswers);$aNumber++)
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| 88 | {
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| 89 | $surveyInfo['q'.$qNumber.'ans'.$aNumber] = substr($resultAnswers[$aNumber-1]['?answerTitle'],9,strlen($resultAnswers[$aNumber-1]['?answerTitle'])-11);
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| 90 | }
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| 91 | }
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| 92 | }
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| [31] | 93 |
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| [26] | 94 | return $surveyInfo;
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| 95 | }
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| 96 |
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| [31] | 97 | public function getExistingSurveys()
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| 98 | {
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| 99 | $surveyIDs = array();
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| 100 | $surveys = array();
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| 101 |
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| 102 | if($handle = opendir('surveys/'))
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| 103 | {
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| 104 | while (false !== ($file = readdir($handle))) {
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| 105 | if(strstr($file, 'survey_'))
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| 106 | $surveyIDs[] = substr($file,0,strlen($file)-4);
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| 107 | }
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| 108 | }
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| 109 |
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| 110 | foreach($surveyIDs as $surveyID)
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| 111 | {
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| 112 | $surveyTitle = $this->surveyRDFReader->getSurveyTitleByID($surveyID);
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| 113 | $surveys[$surveyID] = substr($surveyTitle[0]['?title'],9,strlen($surveyTitle[0]['?title'])-11);
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| 114 | }
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| 115 |
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| 116 | return $surveys;
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| 117 | }
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| [26] | 118 | }
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| 119 | ?> |
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