Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like Query often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Query, and based on these observations, apply Extract Interface, too.
1 | <?php |
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42 | class Query |
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43 | { |
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44 | /** @var string */ |
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45 | private $query; |
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46 | /** @var int */ |
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47 | private $skip = 0; |
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48 | /** @var int */ |
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49 | private $pageSize = 10; |
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50 | /** @var string */ |
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51 | private $collection; |
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52 | /** @var string */ |
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53 | private $area; |
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54 | /** @var string */ |
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55 | private $biasingProfile; |
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56 | /** @var string */ |
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57 | private $language; |
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58 | /** @var MSort[] */ |
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59 | private $sort; |
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60 | /** @var CustomUrlParam[] */ |
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61 | private $customUrlParams = array(); |
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62 | /** @var Navigation[] */ |
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63 | private $navigations = array(); |
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64 | /** @var string[] */ |
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65 | private $includedNavigations = array(); |
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66 | /** @var string[] */ |
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67 | private $excludedNavigations = array(); |
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68 | /** @var string[] */ |
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69 | private $fields = array(); |
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70 | /** @var string[] */ |
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71 | private $orFields = array(); |
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72 | /** @var bool */ |
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73 | private $pruneRefinements = true; |
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74 | /** @var bool */ |
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75 | private $disableAutocorrection = false; |
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76 | /** @var bool */ |
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77 | private $wildcardSearchEnabled = false; |
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78 | // Removed until CBOR support for serialization / de-serialization improves |
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79 | // /** @var bool */ |
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80 | // private $returnBinary = false; |
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81 | /** @var RestrictNavigation */ |
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82 | private $restrictNavigation; |
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83 | /** @var MBiasing */ |
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84 | private $biasing; |
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85 | |||
86 | /** @var Serializer */ |
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87 | private $serializer; |
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88 | |||
89 | const TILDE_REGEX = "/~((?=[\\w]*[=:]))/"; |
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90 | |||
91 | /** |
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92 | * @param mixed $request |
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93 | * |
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94 | * @return string |
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95 | */ |
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96 | private function requestToJson($request) |
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97 | { |
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98 | $jsonRequest = null; |
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99 | try { |
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100 | $jsonRequest = $this->serializer->serialize($request, 'json'); |
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101 | } catch (RuntimeException $e) { |
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102 | throw new RuntimeException('Unable to serialize request ' . var_dump($request)); |
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103 | } |
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104 | |||
105 | return $jsonRequest; |
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106 | } |
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107 | |||
108 | /** |
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109 | * @param string $clientKey Your client key. |
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110 | * |
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111 | * @return string JSON representation of request to Bridge. |
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112 | */ |
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113 | public function getBridgeJson($clientKey) |
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114 | { |
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115 | $data = $this->populateRequest($clientKey); |
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116 | return $this->requestToJson($data); |
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117 | } |
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118 | |||
119 | /** |
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120 | * @param string $clientKey Your client key. |
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121 | * @param string $navigationName Name of the navigation to get refinements for |
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122 | * |
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123 | * @return string JSON representation of request to Bridge. |
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124 | */ |
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125 | public function getBridgeRefinementsJson($clientKey, $navigationName) |
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126 | { |
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127 | $data = new RefinementsRequest(); |
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128 | $data->originalQuery = $this->populateRequest($clientKey); |
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129 | $data->navigationName = $navigationName; |
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130 | return $this->requestToJson($data); |
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131 | } |
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132 | |||
133 | /** |
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134 | * @param string $clientKey |
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135 | * |
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136 | * @return Request |
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137 | */ |
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138 | private function populateRequest($clientKey) |
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139 | { |
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140 | $request = new Request(); |
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141 | $request->clientKey = $clientKey; |
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142 | $request->area = $this->area; |
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143 | $request->collection = $this->collection; |
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144 | $request->query = $this->query; |
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145 | $request->fields = $this->fields; |
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146 | $request->orFields = $this->orFields; |
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147 | $request->language = $this->language; |
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148 | $request->biasingProfile = $this->biasingProfile; |
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149 | $request->pageSize = $this->pageSize; |
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150 | $request->skip = $this->skip; |
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151 | $request->customUrlParams = $this->customUrlParams; |
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152 | $request->refinements = $this->generateSelectedRefinements($this->navigations); |
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153 | $request->restrictNavigation = $this->restrictNavigation; |
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154 | |||
155 | if (!empty($this->biasing)) { |
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156 | $request->biasing = self::convertBiasing($this->biasing); |
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157 | } |
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158 | |||
159 | if (!empty($this->includedNavigations)) { |
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160 | $request->includedNavigations = $this->includedNavigations; |
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161 | } |
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162 | |||
163 | if (!empty($this->excludedNavigations)) { |
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164 | $request->excludedNavigations = $this->excludedNavigations; |
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165 | } |
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166 | |||
167 | $pruneRefinements = $this->pruneRefinements; |
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168 | if (isset($pruneRefinements) && $pruneRefinements === false) { |
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169 | $request->pruneRefinements = false; |
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170 | } |
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171 | |||
172 | $disableAutocorrection = $this->disableAutocorrection; |
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173 | if (isset($disableAutocorrection) && $disableAutocorrection === true) { |
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174 | $request->disableAutocorrection = true; |
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175 | } |
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176 | |||
177 | $wildcardSearchEnabled = $this->wildcardSearchEnabled; |
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178 | if (isset($wildcardSearchEnabled) && $wildcardSearchEnabled === true) { |
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179 | $request->wildcardSearchEnabled = true; |
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180 | } |
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181 | |||
182 | if (!empty($this->sort)) { |
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183 | foreach ($this->sort as $s) { |
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184 | array_push($request->sort, $this->convertSort($s)); |
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185 | } |
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186 | } |
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187 | |||
188 | // $returnBinary = $this->returnBinary; |
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189 | // if (isset($returnBinary) && $returnBinary === true) { |
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190 | // $request->returnBinary = true; |
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191 | // } |
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192 | |||
193 | return $request; |
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194 | } |
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195 | |||
196 | /** |
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197 | * @param Navigation[] $navigations |
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198 | * |
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199 | * @return Refinement[] |
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200 | */ |
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201 | private function generateSelectedRefinements($navigations) |
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202 | { |
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203 | $refinements = []; |
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204 | foreach ($navigations as $key => $navigation) { |
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205 | foreach ($navigation->getRefinements() as $refinement) { |
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206 | switch ($refinement->getType()) { |
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207 | case Type::Range: { |
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208 | /** @var RefinementRange $rr */ |
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209 | $rr = $refinement; |
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210 | $selectedRefinementRange = new SelectedRefinementRange(); |
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211 | $selectedRefinementRange |
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212 | ->setNavigationName($navigation->getName()) |
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213 | ->setLow($rr->getLow()) |
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214 | ->setHigh($rr->getHigh()) |
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215 | ->setExclude($rr->isExclude()); |
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216 | |||
217 | array_push($refinements, $selectedRefinementRange); |
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218 | break; |
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219 | } |
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220 | case Type::Value: { |
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221 | /** @var RefinementValue $rv */ |
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222 | $rv = $refinement; |
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223 | $selectedRefinementValue = new SelectedRefinementValue(); |
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224 | $selectedRefinementValue |
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225 | ->setNavigationName($navigation->getName()) |
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226 | ->setValue($rv->getValue()) |
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227 | ->setExclude($rv->isExclude()); |
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228 | |||
229 | array_push($refinements, $selectedRefinementValue); |
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230 | break; |
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231 | } |
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232 | } |
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233 | } |
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234 | } |
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235 | return $refinements; |
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236 | } |
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237 | |||
238 | /** |
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239 | * @param string $clientKey Your client key. |
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240 | * |
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241 | * @return string JSON representation of request to Bridge. |
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242 | */ |
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243 | public function getBridgeJsonRefinementSearch($clientKey) |
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244 | { |
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245 | $data = new Request(); |
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246 | $data->clientKey = $clientKey; |
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247 | $data->collection = $this->collection; |
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248 | $data->area = $this->area; |
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249 | $data->refinementQuery = $this->query; |
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250 | |||
251 | $wildcardSearchEnabled = $this->wildcardSearchEnabled; |
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252 | if (isset($wildcardSearchEnabled) && $wildcardSearchEnabled === true) { |
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253 | $data->wildcardSearchEnabled = true; |
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254 | } |
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255 | |||
256 | return $this->requestToJson($data); |
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257 | } |
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258 | |||
259 | public function __construct() |
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263 | |||
264 | /** |
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265 | * @return string The current search string. |
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266 | */ |
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267 | public function getQuery() |
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271 | |||
272 | /** |
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273 | * @param string $query The search string. |
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274 | */ |
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275 | public function setQuery($query) |
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279 | |||
280 | /** |
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281 | * @return string The data sub-collection. |
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282 | */ |
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283 | public function getCollection() |
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287 | |||
288 | /** |
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289 | * @param string $collection The string representation of a collection query. |
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290 | */ |
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291 | public function setCollection($collection) |
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295 | |||
296 | /** |
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297 | * @return string The area name. |
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298 | */ |
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299 | public function getArea() |
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303 | |||
304 | /** |
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305 | * @param string $area The area name. |
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306 | */ |
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307 | public function setArea($area) |
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311 | |||
312 | /** |
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313 | * @return string[] A list of metadata fields that will be returned by the search engine. |
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314 | */ |
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315 | public function getFields() |
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319 | |||
320 | /** |
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321 | * @return string[] A list of the fields that the search service will treat as OR'able. |
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322 | */ |
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323 | public function getOrFields() |
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327 | |||
328 | /** |
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329 | * @param string[] $fields A list of case-sensitive names of the attributes to return. |
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330 | */ |
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331 | public function addFields($fields) |
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335 | |||
336 | /** |
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337 | * @return string[] A list of which navigations to return from the bridge. |
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338 | */ |
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339 | public function getIncludedNavigations() |
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343 | |||
344 | /** |
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345 | * @param string[] $navigations A list of which navigations to return from the bridge. |
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346 | */ |
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347 | public function addIncludedNavigations($navigations) |
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351 | |||
352 | /** |
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353 | * @return string[] A list of which navigations to not return from the bridge. |
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354 | */ |
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355 | public function getExcludedNavigations() |
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359 | |||
360 | /** |
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361 | * @param string[] $navigations A list of which navigations to not return from the bridge. |
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362 | */ |
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363 | public function addExcludedNavigations($navigations) |
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367 | |||
368 | /** |
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369 | * @return Navigation[] |
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370 | */ |
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371 | public function &getNavigations() |
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375 | |||
376 | /** |
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377 | * @param Navigation[] $navigations |
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378 | */ |
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379 | public function setNavigations($navigations) |
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383 | |||
384 | /** |
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385 | * @param string $name The case-sensitive name of the attribute to return. |
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386 | */ |
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387 | public function addField($name) |
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391 | |||
392 | /** |
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393 | * @param string $name Field that should be treated as OR. |
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394 | */ |
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395 | public function addOrField($name) |
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399 | |||
400 | /** |
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401 | * @param string[] $fields A list of fields that should be treated as OR. |
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402 | */ |
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403 | public function addOrFields($fields) |
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407 | |||
408 | /** |
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409 | * @param string $name The parameter name. |
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410 | * @param string $value The parameter value. |
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411 | */ |
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412 | public function addCustomUrlParamByName($name, $value) |
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413 | { |
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414 | $param = new CustomUrlParam(); |
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415 | $this->addCustomUrlParam($param->setKey($name)->setValue($value)); |
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416 | } |
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417 | |||
418 | /** |
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419 | * @param CustomUrlParam $param Set an additional parameter that can be used to trigger rules. |
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420 | */ |
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421 | public function addCustomUrlParam($param) |
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425 | |||
426 | public function splitRefinements($refinementString) |
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427 | { |
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428 | if (StringUtils::isNotBlank($refinementString)) { |
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429 | return preg_split(self::TILDE_REGEX, $refinementString, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE); |
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430 | } |
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431 | return []; |
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432 | } |
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433 | |||
434 | /** |
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435 | * @param string $refinementString A tilde separated list of refinements. |
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436 | */ |
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437 | public function addRefinementsByString($refinementString) |
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438 | { |
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439 | if ($refinementString == null) { |
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440 | return; |
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441 | } |
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442 | |||
443 | $refinementStrings = self::splitRefinements($refinementString); |
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444 | foreach ($refinementStrings as $refinementString) { |
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445 | if (empty($refinementString) || "=" == $refinementString) { |
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446 | continue; |
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447 | } |
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448 | $colon = strpos($refinementString, Symbol::COLON); |
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449 | $equals = strpos($refinementString, Symbol::EQUAL); |
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450 | //when === false, it means it did not find the substring in the string |
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451 | $isRange = !($colon === false) && ($equals === false); |
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452 | |||
453 | $refinement = null; |
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454 | if ($isRange) { |
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455 | $nameValue = explode(Symbol::COLON, $refinementString, 2); |
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456 | $refinement = new RefinementRange(); |
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457 | if (StringUtils::endsWith($nameValue[1], Symbol::DOUBLE_DOT)) { |
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458 | $value = explode(Symbol::DOUBLE_DOT, $nameValue[1]); |
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459 | $refinement->setLow($value[0]); |
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460 | $refinement->setHigh(""); |
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461 | } else if (StringUtils::startsWith($nameValue[1], Symbol::DOUBLE_DOT)) { |
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462 | $refinement->setLow(""); |
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463 | $value = explode(Symbol::DOUBLE_DOT, $nameValue[1]); |
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464 | $refinement->setHigh($value[1]); |
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465 | } else { |
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466 | $lowHigh = explode(Symbol::DOUBLE_DOT, $nameValue[1]); |
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467 | $refinement->setLow($lowHigh[0]); |
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468 | $refinement->setHigh($lowHigh[1]); |
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469 | } |
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470 | } else { |
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471 | $nameValue = explode(Symbol::EQUAL, $refinementString, 2); |
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472 | $refinement = new RefinementValue(); |
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473 | $refinement->setValue($nameValue[1]); |
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474 | } |
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475 | if (!empty($nameValue[0])) { |
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476 | $this->addRefinement($nameValue[0], $refinement); |
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477 | } |
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478 | } |
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479 | } |
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480 | |||
481 | /** |
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482 | * @param string $navigationName The name of the Navigation. |
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483 | * @param Refinement $refinement A RefinementRange or RefinementValue object. |
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484 | */ |
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485 | public function addRefinement($navigationName, $refinement) |
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486 | { |
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487 | $navigation = null; |
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488 | if (array_key_exists($navigationName, $this->navigations)) { |
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489 | $navigation = $this->navigations[$navigationName]; |
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490 | } else { |
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491 | $navigation = new Navigation(); |
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492 | $navigation->setName($navigationName)->setRange($refinement instanceof SelectedRefinementRange); |
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493 | $this->navigations[$navigationName] = $navigation; |
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494 | } |
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495 | $refinements = $navigation->getRefinements(); |
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496 | array_push($refinements, $refinement); |
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497 | $navigation->setRefinements($refinements); |
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498 | } |
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499 | |||
500 | /** |
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501 | * @param string $navigationName The name of the refinement. |
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502 | * @param mixed $low The low value. |
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503 | * @param mixed $high The high value. |
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504 | * @param bool $exclude True if the results should exclude this range refinement, false otherwise. |
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505 | */ |
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506 | public function addRangeRefinement($navigationName, $low, $high, $exclude = false) |
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507 | { |
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508 | $refinement = new RefinementRange(); |
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509 | $this->addRefinement($navigationName, $refinement->setLow($low)->setHigh($high)->setExclude($exclude)); |
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510 | } |
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511 | |||
512 | /** |
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513 | * @param string $navigationName The name of the refinement. |
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514 | * @param mixed $value The refinement value. |
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515 | * @param bool $exclude True if the results should exclude this value refinement, false otherwise. |
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516 | */ |
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517 | public function addValueRefinement($navigationName, $value, $exclude = false) |
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518 | { |
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519 | $refinement = new RefinementValue();; |
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520 | $this->addRefinement($navigationName, $refinement->setValue($value)->setExclude($exclude)); |
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521 | } |
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522 | |||
523 | /** |
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524 | * @return bool Are refinements with zero counts being removed. |
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525 | */ |
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526 | public function isPruneRefinements() |
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530 | |||
531 | /** |
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532 | * @param bool $pruneRefinements Specifies whether refinements should be pruned. |
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533 | */ |
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534 | public function setPruneRefinements($pruneRefinements) |
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538 | |||
539 | /** |
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540 | * @return MSort[] The current list of sort parameters. |
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541 | */ |
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542 | public function &getSort() |
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546 | |||
547 | /** |
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548 | * @param MSort[] $sort Any number of sort criteria. |
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549 | */ |
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550 | public function setSort($sort) |
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554 | |||
555 | /** |
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556 | * @return int The number of documents to skip. |
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557 | */ |
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558 | public function getSkip() |
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562 | |||
563 | /** |
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564 | * @param int $skip The number of documents to skip. |
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565 | */ |
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566 | public function setSkip($skip) |
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570 | |||
571 | /** |
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572 | * @return CustomUrlParam[] A list of custom url params. |
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573 | */ |
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574 | public function getCustomUrlParams() |
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578 | |||
579 | /** |
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580 | * @param CustomUrlParam[] $customUrlParams Set the custom url params. |
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581 | */ |
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582 | public function setCustomUrlParams($customUrlParams) |
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586 | |||
587 | // /** |
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588 | // * @return bool Is return JSON set to true. |
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589 | // */ |
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590 | // public function isReturnBinary() |
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591 | // { |
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592 | // return $this->returnBinary; |
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593 | // } |
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594 | // |
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595 | // /** |
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596 | // * @param bool $returnBinary Whether to tell the bridge to return binary data rather than JSON. |
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597 | // */ |
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598 | // public function setReturnBinary($returnBinary) |
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599 | // { |
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600 | // $this->returnBinary = $returnBinary; |
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601 | // } |
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602 | |||
603 | /** |
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604 | * @return string The current language restrict value. |
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605 | */ |
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606 | public function getLanguage() |
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610 | |||
611 | /** |
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612 | * @param string $language The value for language restrict. |
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613 | */ |
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614 | public function setLanguage($language) |
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618 | |||
619 | /** |
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620 | * @return string The current biasing profile name. |
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621 | */ |
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622 | public function getBiasingProfile() |
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626 | |||
627 | /** |
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628 | * @param string $biasingProfile Override the biasing profile used for this query. |
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629 | */ |
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630 | public function setBiasingProfile($biasingProfile) |
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634 | |||
635 | /** |
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636 | * @return int The current page size. |
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637 | */ |
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638 | public function getPageSize() |
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642 | |||
643 | /** |
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644 | * @param int $pageSize The number of records to return with the query. |
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645 | */ |
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646 | public function setPageSize($pageSize) |
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650 | |||
651 | /** |
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652 | * @return boolean |
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653 | */ |
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654 | public function isDisableAutocorrection() |
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658 | |||
659 | /** |
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660 | * @param boolean $disableAutocorrection Specifies whether the auto-correction behavior should be disabled. |
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661 | * By default, when no results are returned for the given query (and there is |
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662 | * a did-you-mean available), the first did-you-mean is automatically queried |
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663 | * instead. |
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664 | */ |
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665 | public function setDisableAutocorrection($disableAutocorrection) |
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669 | |||
670 | /** |
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671 | * @return boolean |
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672 | */ |
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673 | public function isWildcardSearchEnabled() |
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677 | |||
678 | /** |
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679 | * @param boolean $wildcardSearchEnabled Indicate if the *(star) character in the search string should be treated |
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680 | * as a wildcard prefix search. For example, `sta*` will match `star` and |
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681 | * `start`. |
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682 | */ |
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683 | public function setWildcardSearchEnabled($wildcardSearchEnabled) |
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687 | |||
688 | /** |
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689 | * <b>Warning</b> This will count as two queries against your search index. |
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690 | * |
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691 | * Typically, this feature is used when you have a large number of navigation items that will overwhelm the end |
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692 | * user. It works by using one of the existing navigation items to decide what the query is about and fires a second |
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693 | * query to restrict the navigation to the most relevant set of navigation items for this search term. |
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694 | * |
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695 | * For example, if you pass in a search of `paper` and a restrict navigation of `category:2` |
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696 | * |
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697 | * The bridge will find the category navigation refinements in the first query and fire a second query for the top 2 |
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698 | * most populous categories. Therefore, a search for something generic like "paper" will bring back top category |
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699 | * matches like copy paper (1,030), paper pads (567). The bridge will fire off the second query with the search |
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700 | * term, plus an OR refinement with the most likely categories. The navigation items in the first query are |
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701 | * entirely replaced with the navigation items in the second query, except for the navigation that was used for the |
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702 | * restriction so that users still have the ability to navigate by all category types. |
||
703 | * |
||
704 | * @param RestrictNavigation $restrictNavigation Restriction criteria |
||
705 | */ |
||
706 | public function setRestrictNavigation($restrictNavigation) |
||
710 | |||
711 | /** @return RestrictNavigation */ |
||
712 | public function getRestrictNavigation() |
||
716 | |||
717 | /** |
||
718 | * @return MBiasing |
||
719 | */ |
||
720 | public function getBiasing() |
||
724 | |||
725 | /** |
||
726 | * Add a biasing profile, which is defined at query time. |
||
727 | * |
||
728 | * @param MBiasing $biasing |
||
729 | */ |
||
730 | public function setBiasing($biasing) |
||
734 | |||
735 | /** |
||
736 | * @param string[] $bringToTop |
||
737 | */ |
||
738 | public function setBringToTop($bringToTop) { |
||
739 | if (empty($this->biasing)) { |
||
740 | $this->biasing = new MBiasing(); |
||
741 | } |
||
742 | $this->biasing->bringToTop = $bringToTop; |
||
743 | } |
||
744 | |||
745 | /** |
||
746 | * @return string A string representation of all of the currently set refinements. |
||
747 | */ |
||
748 | View Code Duplication | public function getRefinementString() |
|
763 | |||
764 | /** |
||
765 | * @return string A string representation of all of the currently set custom url parameters. |
||
766 | */ |
||
767 | View Code Duplication | public function getCustomUrlParamsString() |
|
780 | |||
781 | /** |
||
782 | * @param MSort $sort |
||
783 | * |
||
784 | * @return RSort |
||
785 | */ |
||
786 | protected static function convertSort($sort) |
||
804 | |||
805 | /** |
||
806 | * @param MMatchStrategy $strategy |
||
807 | * |
||
808 | * @return RMatchStrategy |
||
809 | */ |
||
810 | protected static function convertPartialMatchStrategy($strategy) |
||
827 | |||
828 | /** |
||
829 | * @param MPartialMatchRule $rule |
||
830 | * |
||
831 | * @return RPartialMatchRule |
||
832 | */ |
||
833 | protected static function convertPartialMatchRule($rule) |
||
846 | |||
847 | /** |
||
848 | * @param MBiasing $biasing |
||
849 | * |
||
850 | * @return Biasing |
||
851 | */ |
||
852 | protected static function convertBiasing($biasing) |
||
862 | |||
863 | } |
||
864 |