Changeset 143 for Dev/branches/jos-branch/classes

Timestamp:

10/31/11 17:12:28 (14 years ago)

Author:

jkraaijeveld

Message:

Made lots of new connectors, stranded on Sessionconnector for now. Need to find a way to retain the order of applicaties and surveys of a pipeline.

Location:

Dev/branches/jos-branch/classes

Files:

• AnswerConnector.php (modified) (2 diffs)
• AnswerSet.php (added)
• AnswerSetConnector.php (added)
• DatabaseInterface.php (modified) (4 diffs)
• Question.php (modified) (1 diff)
• QuestionConnector.php (modified) (3 diffs)
• RespondentConnector.php (modified) (2 diffs)
• Session.php (added)
• SessionConnector.php (added)
• SurveyConnector.php (modified) (2 diffs)

Dev/branches/jos-branch/classes/AnswerConnector.php

@@ -12 +12 @@
 class AnswerConnector implements IConnector{
     protected $model;
-    protected $fileName = 'data/users/users.rdf';
+        protected $fileName = 'data/answers/answers.rdf';
+        protected $db;
     
     /**
@@ -44 +45 @@
     }
     
+        /**
+         * Function get()
+         * Get the answers corresponding to the arguments
+         * 'Question' argument is supposed to be the question ID
+         * 'Values' has to be an array to make sure multiple answers can be selected.
+         */
     public function get($arguments)
-    {
-        
-    }
-    
+        {
+                $this->load();
+                $keys = array_keys($arguments);
+                $uid = "?uid"; $question = "?question_code"; $value     = ""; 
+                if(in_array("uid", $keys))
+                        $uid = '\''.$arguments["uid"].'\'';
+                if(in_array("question", $keys))
+                        $question = '\''.$arguments["question"].'\'';
+                if(in_array("values", $keys))
+                {
+                        foreach ($arguments["values"] as $val)
+                        {
+                                $value = $value . 'predicates:answered \'' . $val . '\' ';
+                        }
+                }
+                //Create the querystring
+                $querystring = '
+                        PREFIX predicates: <' . SURVEYTOOL_PREDICATES_NAMESPACE . '>
+                        PREFIX resources: <' . SURVEYTOOL_RESOURCES_NAMESPACE . '>
+                        SELECT DISTINCT ?uid, ?question_code
+                        WHERE
+                        {
+                                _answer predicates:resource_type resources:answer;
+
+                                predicates:uid ?uid ;
+                                predicates:question_code ?question_code;
+
+                                predicates:uid ' . $uid . '
+                                predicates:question_code ' . $question . '      
+                                ' . $value . '
+                        }';
+
+                //Query the model
+                $results = $this->model->sparqlQuery($querystring);     
+                //An answer can have multiple values, get all these values for the answer instances found.
+                $answers = array();
+                if(!empty($results))
+                {
+            $this->db = new DatabaseInterface();
+                        foreach($results as $result)
+                        {
+                                $values = $this->getValues($result['?uid']->label);
+                                $questionResult = $this->db->get("question", array("uid" => $result['?question_code']->label));
+                                $answers[] = new Answer($result['?uid']->label, $questionResult[0], $values);
+                        }
+                }
+                return $answers;
+
+        }
+        /**
+         * Gets the values that belong to the answer
+         * specified by the UID
+         */
+        private function getValues($uid)
+        {
+                $querystring = '
+                        PREFIX predicates: <' . SURVEYTOOL_PREDICATES_NAMESPACE . '>
+                        PREFIX resources: <' . SURVEYTOOL_RESOURCES_NAMESPACE . '>
+                        SELECT DISTINCT ?answered
+                        WHERE 
+                        {
+                                _answer predicates:resource_type resources:answer ;
+                                predicates:answered ?answered ;
+                                predicates:uid \''. $uid . '\'
+                }';
+                $values = $this->model->sparqlQuery($querystring);
+                $returnArray = array();
+                if(!empty($values))
+                {
+                        foreach($values as $value)
+                        {
+                                $returnArray[] = $value['?answered']->label;
+                        }
+                }
+                return $returnArray;
+        } 
+
     /**
-     *
+     * Saves the answer Object to the RDF file.
      * @param type $rToolObject
      */
     public function set($rToolObject)
     {
+        $this->load();
         
+        $resourceAnswer = new Resource(ANSWER.'/'.$rToolObject->uid);        
+        //Remove the old value stored with the given id
+        $this->model->subtract($this->model->find($resourceAnswer, null, null));
+        
+        //Save all the new values
+        $resourceAnswerType = new Resource(ANSWER);
+        $predicateRType = new Resource(RTYPE);
+        $this->model->add(new Statement($resourceAnswer,$predicateRType,$resourceAnswerType));
+        
+                $answerId = new Literal($rToolObject->uid);
+                $predicateId = new Resource(UID);
+                $this->model->add(new Statement($resourceAnswer, $predicateId, $answerId));
+
+                $questionId = new Literal($rToolObject->question->uid);
+                $predicateQId = new Resource(QCODE);
+                $this->model->add(new Statement($resourceAnswer, $predicateQId, $questionId));
+
+                if(isset($rToolObject->values))
+                {
+                        foreach($rToolObject->values as $value)
+                        {
+                                $answerValue = new Literal($value);
+                                $predicateAnswer = new Resource(ANSWERED);
+                                $this->model->add(new Statement($resourceAnswer, $predicateAnswer, $answerValue));
+                        }
+                }
+        $this->save();
     }
 }

Dev/branches/jos-branch/classes/DatabaseInterface.php

@@ -22 +22 @@
     private $surveyConnector;
     private $respondentConnector;
-    private $answerConnector;
+        private $answerConnector;
+        private $answerSetConnector;
+        private $sessionConnector;
     
     /**
@@ -34 +36 @@
         $this->surveyConnector = new SurveyConnector();
         $this->respondentConnector = new RespondentConnector();
-        $this->answerConnector = new AnswerConnector();
+                $this->answerConnector = new AnswerConnector();
+                $this->answerSetConnector = new AnswerSetConnector();
+                $this->sessionConnector = new SessionConnector();
     }
     
@@ -64 +68 @@
             case "answer":
                 return $this->answerConnector->get($arguments);
-                break;
-               
+                                break;
+                        case "answerset":
+                                return $this->answerSetConnector->get($arguments);
+                        case "session":
+                                return $this->sessionConnector->get($arguments);
+
         }
     }
@@ -87 +95 @@
                 break;
             case "Survey":
-                $this->surveyConnector->set($rToolObject);
+                                $this->surveyConnector->set($rToolObject);
+                                break;
             case "Respondent":
-                $this->respondentConnector->set($rToolObject);
+                                $this->respondentConnector->set($rToolObject);
+                                break;
             case "Answer":
-                $this->answerConnector->set($rToolObject);
+                                $this->answerConnector->set($rToolObject);
+                                break;
+                        case "AnswerSet":
+                                $this->answerSetConnector->set($rToolObject);
+                                break;
+                        case "Session":
+                                $this->sessionConnector->set($rToolObject);
+                                break;
+
         }
     }

Dev/branches/jos-branch/classes/Question.php

@@ -29 +29 @@
     public function __construct($uid, $title = null, $type = null, $description = null, $category = null, $answers = null)
     {
+                if(!isset($uid))
+                {
+                        $uid = md5(uniqid(rand(), true));
+                }
         $this->uid = $uid;
         $this->title = $title;

Dev/branches/jos-branch/classes/QuestionConnector.php

@@ -59 +59 @@
         $keys = array_keys($arguments);
         //Set default values for arguments
-        $uid = "?uid"; $title = "?title"; $type = "?type"; $description = "?description"; $category = "?category";
+        $uid = "?uid"; $title = "?title"; $type = "?type"; $description = "?description"; $category = "?category"; $has_answer = "";
         //Set the arguments if they are supplied
         if(in_array("uid", $keys))
@@ -70 +70 @@
             $description = "\"".$arguments["description"]."\"";
         if(in_array("category", $keys))
-            $style = "\"".$arguments["category"]."\"";
+                        $style = "\"".$arguments["category"]."\"";
+                if(in_array("answers", $keys))
+                {
+                        foreach($arguments["answers"] as $answer)
+                        {
+                                $has_answer = $has_answer . 'predicates:has_answer \'' . $answer . '\' ';
+                        }
+                }
            
         $querystring = '
@@ -89 +96 @@
                 predicates:question_type ' . $type . '
                 predicates:description ' . $description . '
-                predicates:question_category ' . $category . ' 
+                                predicates:question_category ' . $category . ' 
+                                ' . $has_answer . '
             }';
         //Create the querystring 

Dev/branches/jos-branch/classes/RespondentConnector.php

@@ -73 +73 @@
             WHERE       
             {
-                    _user       predicates:resource_type        resources:user ;
+                    _respondent predicates:resource_type        resources:respondent ;
                                         predicates:uid ?uid ;
                                         predicates:name ?name ;
                                         predicates:password ?password ;
-                                        predicates:uid ' . $uid . ' 
+                                predicates:uid ' . $uid . ' 
                                         predicates:name ' . $name . ' 
                                         predicates:password ' . $password . ' 
             }';
-        echo $querystring;
         //Query the model
         $results = $this->model->sparqlQuery($querystring);
-        $respondents = array();
+                $respondents = array();
         if(!empty($results))
         {
@@ -107 +106 @@
         $this->model->subtract($this->model->find($resourceRespondent, null, null));
 
+                //Set the new values
         $resourceRespondentType = new Resource(RESPONDENT);
         $predicateRType = new Resource(RTYPE);

Dev/branches/jos-branch/classes/SurveyConnector.php

@@ -95 +95 @@
         if(!empty($results))
         {
-            $this->db = new DatabaseInterface();
             foreach($results as $result)
             {
@@ -128 +127 @@
         if(!empty($results))
         {
+            $this->db = new DatabaseInterface();
             foreach($results as $questionId)
             {