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1 | <?php |
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2 | /** |
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3 | * ODataParams class |
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4 | * |
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5 | * This file describes the ODataParams class |
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6 | * |
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7 | * PHP version 5 and 7 |
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8 | * |
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9 | * @author Patrick Boyd / [email protected] |
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10 | * @copyright Copyright (c) 2017, Austin Artistic Reconstruction |
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11 | * @license http://www.apache.org/licenses/ Apache 2.0 License |
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12 | */ |
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13 | |||
14 | /** |
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15 | * A class representing OData style URI query string parameters. |
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16 | * |
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17 | * The REST APIs use OData style URI query string parameters. |
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18 | * This class abstracts parsing of those into a more PHP friendly format. |
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19 | */ |
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20 | class ODataParams |
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21 | { |
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22 | /** |
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23 | * The ODataFilter or false if not set |
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24 | * @var false|Data\Filter |
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25 | */ |
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26 | public $filter = false; |
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27 | /** |
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28 | * An array of properties to expand or false if not set |
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29 | * @var false|array |
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30 | */ |
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31 | public $expand = false; |
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32 | /** |
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33 | * An array of properties to display or false if not set |
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34 | * @var false|array |
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35 | */ |
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36 | public $select = false; |
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37 | /** |
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38 | * An array of properties to sort by or false if not set |
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39 | * @var false|array |
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40 | */ |
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41 | public $orderby = false; |
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42 | /** |
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43 | * The number of results to display or false if not set |
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44 | * @var false|integer |
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45 | */ |
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46 | public $top = false; |
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47 | /** |
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48 | * The number of results to skip or false if not set |
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49 | * @var false|integer |
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50 | */ |
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51 | public $skip = false; |
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52 | /** |
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53 | * Display the count of results |
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54 | * @var boolean |
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55 | */ |
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56 | public $count = false; |
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57 | /** |
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58 | * Not yet implemented |
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59 | */ |
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60 | public $search = false; |
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61 | |||
62 | /** |
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63 | * Parse the parameter array into an ODataParams instance |
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64 | * |
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65 | * @param string[] $params An key=>value array of strings representing the query string. |
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66 | */ |
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67 | public function __construct($params) |
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68 | { |
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69 | $this->processFilter($params); |
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70 | $this->processExpand($params); |
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71 | $this->processSelect($params); |
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72 | $this->processOrderBy($params); |
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73 | $this->processTop($params); |
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74 | $this->processSkip($params); |
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75 | $this->processCount($params); |
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76 | $this->processSearch($params); |
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77 | } |
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78 | |||
79 | /** |
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80 | * Take the parameter array and find the Filter parameter and convert that to a \Data\Filter if present |
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81 | * |
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82 | * @param string[] $params An key=>value array of strings representing the query string. |
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83 | */ |
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84 | protected function processFilter($params) |
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85 | { |
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86 | View Code Duplication | if(isset($params['filter'])) |
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87 | { |
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88 | $this->filter = new \Data\Filter($params['filter']); |
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89 | } |
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90 | else if(isset($params['$filter'])) |
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91 | { |
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92 | $this->filter = new \Data\Filter($params['$filter']); |
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93 | } |
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94 | } |
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95 | |||
96 | /** |
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97 | * Take the parameter array and find the Expand parameter and convert it to a PHP array |
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98 | * |
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99 | * @param string[] $params An key=>value array of strings representing the query string. |
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100 | */ |
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101 | protected function processExpand($params) |
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102 | { |
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103 | if(isset($params['$expand'])) |
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104 | { |
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105 | $this->expand = explode(',', $params['$expand']); |
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106 | } |
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107 | } |
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108 | |||
109 | /** |
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110 | * Take the parameter array and find the Select parameter and convert it to a PHP array |
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111 | * |
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112 | * @param string[] $params An key=>value array of strings representing the query string. |
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113 | */ |
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114 | protected function processSelect($params) |
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115 | { |
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116 | if(isset($params['select'])) |
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117 | { |
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118 | $this->select = explode(',', $params['select']); |
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119 | } |
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120 | else if(isset($params['$select'])) |
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121 | { |
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122 | $this->select = explode(',', $params['$select']); |
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123 | } |
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124 | } |
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125 | |||
126 | /** |
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127 | * Take the parameter array and find the OrderBy parameter and convert it to a PHP array |
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128 | * |
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129 | * @param string[] $params An key=>value array of strings representing the query string. |
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130 | */ |
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131 | protected function processOrderBy($params) |
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132 | { |
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133 | if(isset($params['$orderby'])) |
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134 | { |
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135 | $this->orderby = array(); |
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136 | $orderby = explode(',', $params['$orderby']); |
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137 | $count = count($orderby); |
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138 | for($i = 0; $i < $count; $i++) |
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139 | { |
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140 | $exp = explode(' ', $orderby[$i]); |
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141 | if(count($exp) === 1) |
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142 | { |
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143 | //Default to assending |
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144 | $this->orderby[$exp[0]] = 1; |
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145 | } |
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146 | else |
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147 | { |
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148 | switch($exp[1]) |
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149 | { |
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150 | case 'asc': |
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151 | $this->orderby[$exp[0]] = 1; |
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152 | break; |
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153 | case 'desc': |
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154 | $this->orderby[$exp[0]] = -1; |
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155 | break; |
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156 | default: |
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157 | throw new Exception('Unknown orderby operation'); |
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158 | } |
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159 | } |
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160 | } |
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161 | } |
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162 | } |
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163 | |||
164 | /** |
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165 | * Take the parameter array and find the Top parameter and convert it to an int |
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166 | * |
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167 | * @param string[] $params An key=>value array of strings representing the query string. |
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168 | */ |
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169 | protected function processTop($params) |
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170 | { |
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171 | if(isset($params['$top']) && is_numeric($params['$top'])) |
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172 | { |
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173 | $this->top = intval($params['$top']); |
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174 | } |
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175 | } |
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176 | |||
177 | /** |
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178 | * Take the parameter array and find the Skip parameter and convert it to an int |
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179 | * |
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180 | * @param string[] $params An key=>value array of strings representing the query string. |
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181 | */ |
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182 | protected function processSkip($params) |
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183 | { |
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184 | if(isset($params['$skip']) && is_numeric($params['$skip'])) |
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185 | { |
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186 | $this->skip = intval($params['$skip']); |
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187 | } |
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188 | } |
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189 | |||
190 | /** |
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191 | * Take the parameter array and find the Count parameter and convert it to a boolean |
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192 | * |
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193 | * @param string[] $params An key=>value array of strings representing the query string. |
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194 | */ |
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195 | protected function processCount($params) |
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196 | { |
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197 | if(isset($params['$count']) && strcasecmp($params['$count'], 'true') === 0) |
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198 | { |
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199 | $this->count = true; |
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200 | } |
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201 | } |
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202 | |||
203 | /** |
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204 | * Take the parameter array and find the Search parameter and process it |
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205 | * |
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206 | * @param string[] $params An key=>value array of strings representing the query string. |
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207 | */ |
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208 | protected function processSearch($params) |
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209 | { |
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210 | if(isset($params['$search'])) |
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211 | { |
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212 | //throw new Exception('Search not yet implemented'); |
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213 | } |
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214 | } |
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215 | |||
216 | /** |
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217 | * Take an input array and filter the array based on the select parameter |
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218 | * |
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219 | * @param array $array The array to be filtered |
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220 | * |
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221 | * @return array The filtered array |
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222 | */ |
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223 | public function filterArrayPerSelect($array) |
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224 | { |
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225 | if($this->select === false) |
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226 | { |
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227 | return $array; |
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228 | } |
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229 | $flip = array_flip($this->select); |
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230 | $count = count($array); |
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231 | for($i = 0; $i < $count; $i++) |
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232 | { |
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233 | if(is_a($array[$i], 'SerializableObject')) |
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234 | { |
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235 | $array[$i] = array_intersect_key($array[$i]->jsonSerialize(), $flip); |
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236 | continue; |
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237 | } |
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238 | $array[$i] = array_intersect_key($array[$i], $flip); |
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239 | } |
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240 | return $array; |
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241 | } |
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242 | } |
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243 |
PHP Analyzer performs a side-effects analysis of your code. A side-effect is basically anything that might be visible after the scope of the method is left.
Let’s take a look at an example:
If we look at the
getEmail()
method, we can see that it has no side-effect. Whether you call this method or not, no future calls to other methods are affected by this. As such code as the following is useless:On the hand, if we look at the
setEmail()
, this method _has_ side-effects. In the following case, we could not remove the method call: