1 | <?php
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2 |
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3 | class SurveyRDFReader
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4 | {
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5 | protected $model;
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6 |
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7 | protected $surveyUID;
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8 |
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9 | public function __construct($surveyUID)
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10 | {
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11 | // Create empty MemModel
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12 | $factory = new ModelFactory();
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13 | $this->model = $factory->getDefaultModel();
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14 |
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15 | $this->surveyUID = $surveyUID;
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16 | }
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17 |
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18 | public function loadSurvey()
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19 | {
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20 | $this->model->load('surveys/survey_'.$this->surveyUID.'.rdf');
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21 | }
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22 |
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23 | public function getSurveyInfo()
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24 | {
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25 | SurveyRDFReader::loadSurvey();
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26 |
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27 | $result = array();
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28 | $result[] = $this->readSurveyInfo();
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29 | $result[] = $this->readSurveyQuestions();
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30 |
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31 | return $result;
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32 | }
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33 |
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34 | public function readSurveyInfo()
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35 | {
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36 | $querystring = '
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37 | PREFIX predicates: <' . SURVEYTOOL_PREDICATES_NAMESPACE . '>
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38 | PREFIX resources: <' . SURVEYTOOL_RESOURCES_NAMESPACE . '>
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39 | SELECT ?uid ?title ?description
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40 | WHERE
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41 | {
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42 | _survey predicates:resource_type resources:survey ;
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43 | predicates:uid ?uid ;
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44 | predicates:title ?title ;
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45 | predicates:description ?description
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46 | }';
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47 |
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48 | $result = $this->model->sparqlQuery($querystring);
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49 |
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50 | return $result;
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51 | }
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52 |
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53 | public function readSurveyQuestions()
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54 | {
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55 | $result = array();
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56 | $result[] = $this->readSurveyQuestionsTitle();
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57 | $result[] = $this->readSurveyQuestionsDescription();
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58 | $result[] = $this->readSurveyQuestionsType();
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59 | $result[] = $this->readSurveyQuestionsID();
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60 |
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61 | return $result;
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62 | }
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63 |
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64 | public function readSurveyQuestionsTitle()
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65 | {
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66 | $querystring = '
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67 | PREFIX predicates: <' . SURVEYTOOL_PREDICATES_NAMESPACE . '>
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68 | PREFIX resources: <' . SURVEYTOOL_RESOURCES_NAMESPACE . '>
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69 | SELECT ?questionTitle
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70 | WHERE
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71 | {
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72 | _question predicates:resource_type resources:question ;
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73 | predicates:title ?questionTitle
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74 | }';
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75 |
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76 | $result = $this->model->sparqlQuery($querystring);
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77 |
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78 | return $result;
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79 | }
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80 |
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81 | public function readSurveyQuestionsDescription()
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82 | {
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83 | $querystring = '
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84 | PREFIX predicates: <' . SURVEYTOOL_PREDICATES_NAMESPACE . '>
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85 | PREFIX resources: <' . SURVEYTOOL_RESOURCES_NAMESPACE . '>
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86 | SELECT ?questionDescription
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87 | WHERE
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88 | {
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89 | _question predicates:resource_type resources:question ;
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90 | predicates:description ?questionDescription
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91 | }';
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92 |
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93 | $result = $this->model->sparqlQuery($querystring);
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94 |
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95 | return $result;
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96 | }
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97 |
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98 | public function readSurveyQuestionsType()
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99 | {
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100 | $querystring = '
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101 | PREFIX predicates: <' . SURVEYTOOL_PREDICATES_NAMESPACE . '>
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102 | PREFIX resources: <' . SURVEYTOOL_RESOURCES_NAMESPACE . '>
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103 | SELECT ?questionType
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104 | WHERE
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105 | {
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106 | _question predicates:resource_type resources:question ;
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107 | predicates:question_type ?questionType
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108 | }';
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109 |
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110 | $result = $this->model->sparqlQuery($querystring);
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111 |
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112 | return $result;
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113 | }
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114 |
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115 | public function readSurveyQuestionsID()
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116 | {
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117 | $querystring = '
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118 | PREFIX predicates: <' . SURVEYTOOL_PREDICATES_NAMESPACE . '>
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119 | PREFIX resources: <' . SURVEYTOOL_RESOURCES_NAMESPACE . '>
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120 | SELECT ?questionID
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121 | WHERE
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122 | {
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123 | _question predicates:resource_type resources:question ;
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124 | predicates:uid ?questionID
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125 | }';
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126 |
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127 | $result = $this->model->sparqlQuery($querystring);
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128 |
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129 | return $result;
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130 | }
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131 |
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132 | public function readSurveyAnswers($qID)
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133 | {
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134 | $querystring = '
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135 | PREFIX predicates: <' . SURVEYTOOL_PREDICATES_NAMESPACE . '>
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136 | PREFIX resources: <' . SURVEYTOOL_RESOURCES_NAMESPACE . '>
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137 | SELECT ?answerTitle
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138 | WHERE
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139 | {
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140 | _question predicates:resource_type resources:question ;
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141 | predicates:uid "' . $qID . '" ;
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142 | predicates:has_answer _answer .
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143 | _answer predicates:title ?answerTitle
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144 | }';
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145 |
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146 | $result = $this->model->sparqlQuery($querystring);
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147 |
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148 | return $result;
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149 | }
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150 |
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151 | public function getSurveyTitleByID($surveyID)
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152 | {
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153 |
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154 | // Create empty MemModel
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155 | $factory = new ModelFactory();
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156 | $tempmodel= $factory->getDefaultModel();
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157 | $tempmodel->load('surveys/survey_'.$surveyID.'.rdf');
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158 |
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159 | $querystring = '
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160 | PREFIX predicates: <' . SURVEYTOOL_PREDICATES_NAMESPACE . '>
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161 | PREFIX resources: <' . SURVEYTOOL_RESOURCES_NAMESPACE . '>
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162 | SELECT ?title
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163 | WHERE
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164 | {
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165 | _survey predicates:resource_type resources:survey ;
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166 | predicates:title ?title
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167 | }';
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168 |
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169 | $result = $tempmodel->sparqlQuery($querystring);
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170 |
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171 | return $result;
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172 | }
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173 | }
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174 |
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175 | ?>
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