kitodo /
kitodo-presentation
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| Total Complexity | 49 |
| Total Lines | 230 |
| Duplicated Lines | 0 % |
| Changes | 6 | ||
| Bugs | 0 | Features | 0 |
Complex classes like Mods 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.
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 Mods, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 26 | class Mods implements \Kitodo\Dlf\Common\MetadataInterface |
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| 27 | { |
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| 28 | /** |
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| 29 | * The metadata XML |
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| 30 | * |
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| 31 | * @var \SimpleXMLElement |
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| 32 | **/ |
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| 33 | private $xml; |
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| 34 | |||
| 35 | /** |
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| 36 | * The metadata array |
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| 37 | * |
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| 38 | * @var array |
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| 39 | **/ |
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| 40 | private $metadata; |
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| 41 | |||
| 42 | /** |
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| 43 | * This extracts the essential MODS metadata from XML |
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| 44 | * |
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| 45 | * @access public |
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| 46 | * |
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| 47 | * @param \SimpleXMLElement $xml: The XML to extract the metadata from |
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| 48 | * @param array &$metadata: The metadata array to fill |
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| 49 | * |
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| 50 | * @return void |
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| 51 | */ |
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| 52 | public function extractMetadata(\SimpleXMLElement $xml, array &$metadata) |
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| 53 | { |
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| 54 | $this->xml = $xml; |
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| 55 | $this->metadata = $metadata; |
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| 56 | |||
| 57 | $this->xml->registerXPathNamespace('mods', 'http://www.loc.gov/mods/v3'); |
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| 58 | |||
| 59 | $this->getAuthors(); |
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| 60 | $this->getHolders(); |
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| 61 | $this->getPlaces(); |
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| 62 | $this->getYears(); |
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| 63 | |||
| 64 | $metadata = $this->metadata; |
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| 65 | } |
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| 66 | |||
| 67 | /** |
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| 68 | * Get "author" and "author_sorting". |
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| 69 | * |
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| 70 | * @access private |
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| 71 | * |
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| 72 | * @return void |
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| 73 | */ |
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| 74 | private function getAuthors() { |
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| 75 | $authors = $this->xml->xpath('./mods:name[./mods:role/mods:roleTerm[@type="code" and @authority="marcrelator"]="aut"]'); |
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| 76 | |||
| 77 | // Get "author" and "author_sorting" again if that was too sophisticated. |
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| 78 | if (empty($authors)) { |
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| 79 | // Get all names which do not have any role term assigned and assume these are authors. |
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| 80 | $authors = $this->xml->xpath('./mods:name[not(./mods:role)]'); |
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| 81 | } |
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| 82 | if (!empty($authors)) { |
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| 83 | for ($i = 0, $j = count($authors); $i < $j; $i++) { |
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| 84 | $authors[$i]->registerXPathNamespace('mods', 'http://www.loc.gov/mods/v3'); |
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| 85 | |||
| 86 | $identifier = $authors[$i]->xpath('./mods:nameIdentifier'); |
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| 87 | if ($identifier[0]['type'] == 'orcid' && !empty((string) $identifier[0])) { |
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| 88 | $orcidIdParts = explode('/', (string) $identifier[0]); |
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| 89 | $orcidId = trim(end($orcidIdParts)); |
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| 90 | if (!str_contains($orcidId, 'orcid=')) { |
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| 91 | $profile = new OrcidProfile($orcidId); |
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| 92 | $this->metadata['author'][$i] = $profile->getFullName(); |
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| 93 | } |
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| 94 | } else { |
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| 95 | // Check if there is a display form. |
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| 96 | if (($displayForm = $authors[$i]->xpath('./mods:displayForm'))) { |
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| 97 | $this->metadata['author'][$i] = (string) $displayForm[0]; |
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| 98 | } elseif (($nameParts = $authors[$i]->xpath('./mods:namePart'))) { |
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| 99 | $name = []; |
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| 100 | $k = 4; |
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| 101 | foreach ($nameParts as $namePart) { |
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| 102 | if ( |
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| 103 | isset($namePart['type']) |
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| 104 | && (string) $namePart['type'] == 'family' |
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| 105 | ) { |
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| 106 | $name[0] = (string) $namePart; |
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| 107 | } elseif ( |
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| 108 | isset($namePart['type']) |
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| 109 | && (string) $namePart['type'] == 'given' |
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| 110 | ) { |
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| 111 | $name[1] = (string) $namePart; |
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| 112 | } elseif ( |
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| 113 | isset($namePart['type']) |
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| 114 | && (string) $namePart['type'] == 'termsOfAddress' |
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| 115 | ) { |
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| 116 | $name[2] = (string) $namePart; |
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| 117 | } elseif ( |
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| 118 | isset($namePart['type']) |
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| 119 | && (string) $namePart['type'] == 'date' |
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| 120 | ) { |
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| 121 | $name[3] = (string) $namePart; |
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| 122 | } else { |
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| 123 | $name[$k] = (string) $namePart; |
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| 124 | } |
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| 125 | $k++; |
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| 126 | } |
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| 127 | ksort($name); |
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| 128 | $this->metadata['author'][$i] = trim(implode(', ', $name)); |
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| 129 | } |
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| 130 | // Append "valueURI" to name using Unicode unit separator. |
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| 131 | if (isset($authors[$i]['valueURI'])) { |
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| 132 | $this->metadata['author'][$i] .= chr(31) . (string) $authors[$i]['valueURI']; |
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| 133 | } |
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| 134 | } |
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| 135 | } |
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| 136 | } |
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| 137 | } |
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| 138 | |||
| 139 | /** |
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| 140 | * Get holder. |
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| 141 | * |
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| 142 | * @access private |
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| 143 | * |
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| 144 | * @return void |
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| 145 | */ |
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| 146 | private function getHolders() { |
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| 147 | $holders = $this->xml->xpath('./mods:name[./mods:role/mods:roleTerm[@type="code" and @authority="marcrelator"]="prv"]'); |
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| 148 | |||
| 149 | if (!empty($holders)) { |
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| 150 | for ($i = 0, $j = count($holders); $i < $j; $i++) { |
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| 151 | $holders[$i]->registerXPathNamespace('mods', 'http://www.loc.gov/mods/v3'); |
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| 152 | |||
| 153 | $identifier = $holders[$i]->xpath('./mods:nameIdentifier'); |
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| 154 | if ($identifier[0]['type'] == 'viaf') { |
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| 155 | $viafUrl = (string) $identifier[0]; |
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| 156 | $profile = new ViafProfile($viafUrl); |
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| 157 | $this->metadata['holder'][$i] = $profile->getFullName(); |
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| 158 | } else { |
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| 159 | // Check if there is a display form. |
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| 160 | if (($displayForm = $holders[$i]->xpath('./mods:displayForm'))) { |
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| 161 | $this->metadata['holder'][$i] = (string) $displayForm[0]; |
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| 162 | } elseif (($nameParts = $holders[$i]->xpath('./mods:namePart'))) { |
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| 163 | $name = []; |
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| 164 | $k = 4; |
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| 165 | foreach ($nameParts as $namePart) { |
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| 166 | if ( |
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| 167 | isset($namePart['type']) |
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| 168 | && (string) $namePart['type'] == 'family' |
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| 169 | ) { |
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| 170 | $name[0] = (string) $namePart; |
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| 171 | } elseif ( |
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| 172 | isset($namePart['type']) |
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| 173 | && (string) $namePart['type'] == 'given' |
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| 174 | ) { |
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| 175 | $name[1] = (string) $namePart; |
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| 176 | } elseif ( |
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| 177 | isset($namePart['type']) |
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| 178 | && (string) $namePart['type'] == 'termsOfAddress' |
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| 179 | ) { |
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| 180 | $name[2] = (string) $namePart; |
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| 181 | } elseif ( |
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| 182 | isset($namePart['type']) |
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| 183 | && (string) $namePart['type'] == 'date' |
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| 184 | ) { |
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| 185 | $name[3] = (string) $namePart; |
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| 186 | } else { |
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| 187 | $name[$k] = (string) $namePart; |
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| 188 | } |
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| 189 | $k++; |
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| 190 | } |
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| 191 | ksort($name); |
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| 192 | $this->metadata['holder'][$i] = trim(implode(', ', $name)); |
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| 193 | } |
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| 194 | } |
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| 195 | } |
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| 196 | } |
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| 197 | } |
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| 198 | |||
| 199 | /** |
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| 200 | * Get "place" and "place_sorting". |
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| 201 | * |
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| 202 | * @access private |
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| 203 | * |
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| 204 | * @return void |
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| 205 | */ |
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| 206 | private function getPlaces() { |
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| 218 | } |
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| 219 | } |
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| 220 | } |
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| 221 | } |
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| 222 | |||
| 223 | /** |
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| 224 | * Get "year" and "year_sorting". |
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| 225 | * |
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| 226 | * @access private |
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| 227 | * |
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| 228 | * @return void |
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| 229 | */ |
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| 230 | private function getYears() { |
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| 256 | } |
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| 257 | } |
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| 258 | } |
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| 259 | } |
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| 261 |
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