dimsav /
laravel-translatable
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 Translatable 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 Translatable, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 12 | trait Translatable |
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| 13 | { |
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| 14 | /** |
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| 15 | * Alias for getTranslation(). |
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| 16 | * |
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| 17 | * @param string|null $locale |
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| 18 | * @param bool $withFallback |
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| 19 | * |
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| 20 | * @return \Illuminate\Database\Eloquent\Model|null |
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| 21 | */ |
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| 22 | public function translate($locale = null, $withFallback = false) |
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| 23 | { |
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| 24 | return $this->getTranslation($locale, $withFallback); |
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| 25 | } |
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| 26 | |||
| 27 | /** |
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| 28 | * Alias for getTranslation(). |
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| 29 | * |
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| 30 | * @param string $locale |
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| 31 | * |
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| 32 | * @return \Illuminate\Database\Eloquent\Model|null |
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| 33 | */ |
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| 34 | public function translateOrDefault($locale) |
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| 38 | |||
| 39 | /** |
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| 40 | * Alias for getTranslationOrNew(). |
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| 41 | * |
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| 42 | * @param string $locale |
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| 43 | * |
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| 44 | * @return \Illuminate\Database\Eloquent\Model|null |
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| 45 | */ |
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| 46 | public function translateOrNew($locale) |
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| 47 | { |
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| 48 | return $this->getTranslationOrNew($locale); |
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| 49 | } |
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| 50 | |||
| 51 | /** |
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| 52 | * @param string|null $locale |
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| 53 | * @param bool $withFallback |
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| 54 | * |
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| 55 | * @return \Illuminate\Database\Eloquent\Model|null |
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| 56 | */ |
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| 57 | public function getTranslation($locale = null, $withFallback = null) |
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| 58 | { |
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| 59 | $configFallbackLocale = $this->getFallbackLocale(); |
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| 60 | $locale = $locale ?: $this->locale(); |
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| 61 | $withFallback = $withFallback === null ? $this->useFallback() : $withFallback; |
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| 62 | $fallbackLocale = $this->getFallbackLocale($locale); |
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| 63 | |||
| 64 | if ($translation = $this->getTranslationByLocaleKey($locale)) { |
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| 65 | return $translation; |
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| 66 | } |
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| 67 | if ($withFallback && $fallbackLocale) { |
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| 68 | if ($translation = $this->getTranslationByLocaleKey($fallbackLocale)) { |
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| 69 | return $translation; |
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| 70 | } |
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| 71 | if ($translation = $this->getTranslationByLocaleKey($configFallbackLocale)) { |
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| 72 | return $translation; |
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| 73 | } |
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| 74 | } |
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| 75 | |||
| 76 | return null; |
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| 77 | } |
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| 78 | |||
| 79 | /** |
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| 80 | * @param string|null $locale |
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| 81 | * |
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| 82 | * @return bool |
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| 83 | */ |
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| 84 | public function hasTranslation($locale = null) |
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| 85 | { |
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| 86 | $locale = $locale ?: $this->locale(); |
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| 87 | |||
| 88 | foreach ($this->translations as $translation) { |
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| 89 | if ($translation->getAttribute($this->getLocaleKey()) == $locale) { |
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| 90 | return true; |
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| 91 | } |
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| 92 | } |
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| 93 | |||
| 94 | return false; |
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| 95 | } |
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| 96 | |||
| 97 | /** |
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| 98 | * @return string |
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| 99 | */ |
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| 100 | public function getTranslationModelName() |
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| 104 | |||
| 105 | /** |
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| 106 | * @return string |
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| 107 | */ |
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| 108 | public function getTranslationModelNameDefault() |
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| 109 | { |
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| 110 | $config = app()->make('config'); |
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| 111 | |||
| 112 | return get_class($this).$config->get('translatable.translation_suffix', 'Translation'); |
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| 113 | } |
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| 114 | |||
| 115 | /** |
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| 116 | * @return string |
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| 117 | */ |
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| 118 | public function getRelationKey() |
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| 119 | { |
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| 120 | if ($this->translationForeignKey) { |
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| 121 | $key = $this->translationForeignKey; |
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| 122 | } elseif ($this->primaryKey !== 'id') { |
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| 123 | $key = $this->primaryKey; |
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| 124 | } else { |
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| 125 | $key = $this->getForeignKey(); |
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| 126 | } |
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| 127 | |||
| 128 | return $key; |
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| 129 | } |
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| 130 | |||
| 131 | /** |
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| 132 | * @return string |
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| 133 | */ |
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| 134 | public function getLocaleKey() |
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| 135 | { |
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| 136 | $config = app()->make('config'); |
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| 137 | |||
| 138 | return $this->localeKey ?: $config->get('translatable.locale_key', 'locale'); |
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| 139 | } |
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| 140 | |||
| 141 | /** |
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| 142 | * @return \Illuminate\Database\Eloquent\Relations\HasMany |
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| 143 | */ |
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| 144 | public function translations() |
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| 148 | |||
| 149 | /** |
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| 150 | * @param string $key |
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| 151 | * |
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| 152 | * @return mixed |
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| 153 | */ |
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| 154 | public function getAttribute($key) |
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| 155 | { |
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| 177 | |||
| 178 | /** |
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| 179 | * @param string $key |
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| 180 | * @param mixed $value |
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| 181 | * |
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| 182 | * @return $this |
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| 183 | */ |
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| 184 | public function setAttribute($key, $value) |
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| 196 | |||
| 197 | /** |
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| 198 | * @param array $options |
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| 199 | * |
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| 200 | * @return bool |
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| 201 | */ |
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| 202 | public function save(array $options = []) |
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| 230 | |||
| 231 | /** |
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| 232 | * @param string $locale |
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| 233 | * |
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| 234 | * @return \Illuminate\Database\Eloquent\Model|null |
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| 235 | */ |
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| 236 | protected function getTranslationOrNew($locale) |
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| 244 | |||
| 245 | /** |
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| 246 | * @param array $attributes |
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| 247 | * |
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| 248 | * @throws \Illuminate\Database\Eloquent\MassAssignmentException |
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| 249 | * @return $this |
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| 250 | */ |
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| 251 | public function fill(array $attributes) |
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| 268 | |||
| 269 | /** |
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| 270 | * @param string $key |
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| 271 | */ |
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| 272 | private function getTranslationByLocaleKey($key) |
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| 282 | |||
| 283 | /** |
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| 284 | * @param null $locale |
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| 285 | * |
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| 286 | * @return string |
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| 287 | */ |
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| 288 | private function getFallbackLocale($locale = null) |
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| 298 | |||
| 299 | /** |
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| 300 | * @param $locale |
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| 301 | * |
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| 302 | * @return bool |
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| 303 | */ |
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| 304 | private function isLocaleCountryBased($locale) |
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| 308 | |||
| 309 | /** |
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| 310 | * @param $locale |
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| 311 | * |
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| 312 | * @return string |
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| 313 | */ |
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| 314 | private function getLanguageFromCountryBasedLocale($locale) |
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| 320 | |||
| 321 | /** |
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| 322 | * @return bool|null |
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| 323 | */ |
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| 324 | private function useFallback() |
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| 332 | |||
| 333 | /** |
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| 334 | * @param string $key |
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| 335 | * |
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| 336 | * @return bool |
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| 337 | */ |
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| 338 | public function isTranslationAttribute($key) |
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| 342 | |||
| 343 | /** |
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| 344 | * @param string $key |
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| 345 | * |
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| 346 | * @throws \Dimsav\Translatable\Exception\LocalesNotDefinedException |
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| 347 | * @return bool |
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| 348 | */ |
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| 349 | protected function isKeyALocale($key) |
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| 355 | |||
| 356 | /** |
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| 357 | * @throws \Dimsav\Translatable\Exception\LocalesNotDefinedException |
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| 358 | * @return array |
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| 359 | */ |
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| 360 | protected function getLocales() |
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| 383 | |||
| 384 | /** |
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| 385 | * @return string |
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| 386 | */ |
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| 387 | protected function getLocaleSeparator() |
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| 391 | |||
| 392 | /** |
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| 393 | * @return bool |
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| 394 | */ |
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| 395 | protected function saveTranslations() |
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| 407 | |||
| 408 | /** |
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| 409 | * @param \Illuminate\Database\Eloquent\Model $translation |
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| 410 | * |
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| 411 | * @return bool |
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| 412 | */ |
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| 413 | protected function isTranslationDirty(Model $translation) |
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| 420 | |||
| 421 | /** |
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| 422 | * @param string $locale |
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| 423 | * |
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| 424 | * @return \Illuminate\Database\Eloquent\Model |
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| 425 | */ |
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| 426 | public function getNewTranslation($locale) |
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| 435 | |||
| 436 | /** |
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| 437 | * @param $key |
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| 438 | * |
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| 439 | * @return bool |
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| 440 | */ |
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| 441 | public function __isset($key) |
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| 445 | |||
| 446 | /** |
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| 447 | * @param \Illuminate\Database\Eloquent\Builder $query |
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| 448 | * @param string $locale |
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| 449 | * |
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| 450 | * @return \Illuminate\Database\Eloquent\Builder|static |
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| 451 | */ |
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| 452 | View Code Duplication | public function scopeTranslatedIn(Builder $query, $locale = null) |
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| 460 | |||
| 461 | /** |
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| 462 | * @param \Illuminate\Database\Eloquent\Builder $query |
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| 463 | * @param string $locale |
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| 464 | * |
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| 465 | * @return \Illuminate\Database\Eloquent\Builder|static |
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| 466 | */ |
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| 467 | View Code Duplication | public function scopeNotTranslatedIn(Builder $query, $locale = null) |
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| 475 | |||
| 476 | /** |
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| 477 | * @param \Illuminate\Database\Eloquent\Builder $query |
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| 478 | * |
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| 479 | * @return \Illuminate\Database\Eloquent\Builder|static |
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| 480 | */ |
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| 481 | public function scopeTranslated(Builder $query) |
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| 485 | |||
| 486 | /** |
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| 487 | * Adds scope to get a list of translated attributes, using the current locale. |
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| 488 | * Example usage: Country::listsTranslations('name')->get()->toArray() |
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| 489 | * Will return an array with items: |
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| 490 | * [ |
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| 491 | * 'id' => '1', // The id of country |
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| 492 | * 'name' => 'Griechenland' // The translated name |
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| 493 | * ]. |
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| 494 | * |
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| 495 | * @param \Illuminate\Database\Eloquent\Builder $query |
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| 496 | * @param string $translationField |
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| 497 | */ |
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| 498 | public function scopeListsTranslations(Builder $query, $translationField) |
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| 522 | |||
| 523 | /** |
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| 524 | * This scope eager loads the translations for the default and the fallback locale only. |
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| 525 | * We can use this as a shortcut to improve performance in our application. |
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| 526 | * |
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| 527 | * @param Builder $query |
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| 528 | */ |
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| 529 | public function scopeWithTranslation(Builder $query) |
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| 541 | |||
| 542 | /** |
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| 543 | * This scope filters results by checking the translation fields. |
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| 544 | * |
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| 545 | * @param \Illuminate\Database\Eloquent\Builder $query |
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| 546 | * @param string $key |
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| 547 | * @param string $value |
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| 548 | * @param string $locale |
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| 549 | * |
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| 550 | * @return \Illuminate\Database\Eloquent\Builder|static |
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| 551 | */ |
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| 552 | View Code Duplication | public function scopeWhereTranslation(Builder $query, $key, $value, $locale = null) |
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| 561 | |||
| 562 | /** |
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| 563 | * This scope filters results by checking the translation fields. |
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| 564 | * |
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| 565 | * @param \Illuminate\Database\Eloquent\Builder $query |
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| 566 | * @param string $key |
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| 567 | * @param string $value |
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| 568 | * @param string $locale |
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| 569 | * |
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| 570 | * @return \Illuminate\Database\Eloquent\Builder|static |
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| 571 | */ |
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| 572 | View Code Duplication | public function scopeWhereTranslationLike(Builder $query, $key, $value, $locale = null) |
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| 581 | |||
| 582 | /** |
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| 583 | * @return array |
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| 584 | */ |
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| 585 | public function toArray() |
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| 603 | |||
| 604 | /** |
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| 605 | * @return string |
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| 606 | */ |
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| 607 | private function getTranslationsTable() |
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| 611 | |||
| 612 | /** |
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| 613 | * @return string |
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| 614 | */ |
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| 615 | protected function locale() |
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| 620 | |||
| 621 | /** |
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| 622 | * Deletes all translations for this model. |
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| 623 | * |
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| 624 | * @param string|array|null $locales The locales to be deleted (array or single string) |
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| 625 | * (e.g., ["en", "de"] would remove these translations). |
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| 626 | */ |
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| 627 | public function deleteTranslations($locales = null) |
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| 640 | |||
| 641 | /** |
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| 642 | * @param $key |
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| 643 | * |
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| 644 | * @return array |
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| 645 | */ |
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| 646 | private function getAttributeAndLocale($key) |
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| 654 | } |
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| 655 |
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: