NatLibFi /
Skosmos
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 ConceptSearchParameters 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 ConceptSearchParameters, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 6 | class ConceptSearchParameters |
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| 7 | { |
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| 8 | |||
| 9 | private $config; |
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| 10 | private $request; |
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| 11 | private $vocabs; |
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| 12 | private $rest; |
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| 13 | private $hidden; |
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| 14 | private $unique; |
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| 15 | |||
| 16 | public function __construct($request, $config, $rest = false) |
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| 17 | { |
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| 18 | $this->request = $request; |
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| 19 | $this->config = $config; |
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| 20 | $this->rest = $rest; |
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| 21 | $this->hidden = true; |
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| 22 | $this->unique = $request->getQueryParamBoolean('unique', false); |
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| 23 | } |
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| 24 | |||
| 25 | public function getLang() |
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| 26 | { |
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| 27 | if ($this->rest && $this->request->getQueryParam('labellang')) { |
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| 28 | return $this->request->getQueryParam('labellang'); |
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| 29 | } |
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| 30 | return $this->request->getLang(); |
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| 31 | } |
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| 32 | |||
| 33 | public function getVocabs() |
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| 34 | { |
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| 35 | if ($this->vocabs) { |
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| 36 | return $this->vocabs; |
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| 37 | } |
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| 38 | if ($this->request->getVocab()) { |
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| 39 | return array($this->request->getVocab()); |
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| 40 | } |
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| 41 | return array(); |
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| 42 | } |
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| 43 | |||
| 44 | public function getVocabIds() |
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| 45 | { |
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| 46 | View Code Duplication | if ($this->rest) { |
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| 47 | $vocabs = $this->request->getQueryParam('vocab'); |
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| 48 | return ($vocabs !== null && $vocabs !== '') ? explode(' ', $vocabs) : null; |
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| 49 | } |
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| 50 | View Code Duplication | if ($this->request->getQueryParam('vocabs')) { |
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| 51 | $vocabs = $this->request->getQueryParam('vocabs'); |
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| 52 | return ($vocabs !== null && $vocabs !== '') ? explode(' ', $vocabs) : null; |
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| 53 | } |
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| 54 | $vocabs = $this->getVocabs(); |
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| 55 | if (isset($vocabs[0])) { |
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| 56 | return array($vocabs[0]->getId()); |
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| 57 | } |
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| 58 | return null; |
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| 59 | } |
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| 60 | |||
| 61 | public function setVocabularies($vocabs) |
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| 65 | |||
| 66 | public function getArrayClass() |
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| 67 | { |
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| 68 | if (sizeof($this->getVocabs()) == 1) { // search within vocabulary |
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| 69 | $vocabs = $this->getVocabs(); |
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| 70 | return $vocabs[0]->getConfig()->getArrayClassURI(); |
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| 71 | } |
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| 72 | return null; |
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| 73 | } |
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| 74 | |||
| 75 | public function getSearchTerm() |
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| 76 | { |
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| 77 | $term = $this->request->getQueryParam('q') ? $this->request->getQueryParam('q') : $this->request->getQueryParam('query'); |
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| 78 | if (!$term && $this->rest) |
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| 79 | $term = $this->request->getQueryParam('label'); |
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| 80 | $term = trim($term); // surrounding whitespace is not considered significant |
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| 81 | if ($this->rest) { |
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| 82 | return $term; |
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| 83 | } |
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| 84 | return strpos($term, "*") === false ? $term . "*" : $term; // default to prefix search |
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| 85 | } |
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| 86 | |||
| 87 | public function getContentLang() |
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| 91 | |||
| 92 | public function getSearchLang() |
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| 93 | { |
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| 94 | if ($this->rest) { |
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| 95 | return $this->request->getQueryParam('lang'); |
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| 96 | } |
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| 97 | return $this->request->getQueryParam('anylang') ? '' : $this->getContentLang(); |
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| 99 | |||
| 100 | public function getTypeLimit() |
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| 120 | |||
| 121 | private function getQueryParam($name, $explode=false) { |
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| 127 | |||
| 128 | public function getGroupLimit() |
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| 132 | |||
| 133 | public function getParentLimit() |
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| 137 | |||
| 138 | public function getSchemeLimit() |
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| 142 | |||
| 143 | public function getOffset() |
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| 147 | |||
| 148 | public function getSearchLimit() |
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| 152 | |||
| 153 | public function getUnique() { |
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| 156 | |||
| 157 | public function setUnique($unique) { |
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| 160 | |||
| 161 | public function getAdditionalFields() { |
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| 164 | |||
| 165 | public function getHidden() { |
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| 168 | |||
| 169 | public function setHidden($hidden) { |
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| 172 | |||
| 173 | } |
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| 174 |
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You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.