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1 | <?php |
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2 | |||
3 | declare(strict_types=1); |
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4 | |||
5 | namespace Rinvex\Repository\Traits; |
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6 | |||
7 | use Closure; |
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8 | |||
9 | trait Cacheable |
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10 | { |
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11 | /** |
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12 | * The repository cache lifetime. |
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13 | * |
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14 | * @var int |
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15 | */ |
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16 | protected $cacheLifetime; |
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17 | |||
18 | /** |
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19 | * The repository cache driver. |
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20 | * |
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21 | * @var string |
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22 | */ |
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23 | protected $cacheDriver; |
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24 | |||
25 | /** |
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26 | * Indicate if the repository cache clear is enabled. |
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27 | * |
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28 | * @var bool |
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29 | */ |
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30 | protected $cacheClearEnabled = true; |
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31 | |||
32 | /** |
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33 | * Generate unique query hash. |
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34 | * |
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35 | * @param $args |
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36 | * |
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37 | * @return string |
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38 | */ |
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39 | protected function generateCacheHash($args): string |
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40 | { |
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41 | return md5(json_encode($args + [ |
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42 | $this->getRepositoryId(), |
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43 | $this->getModel(), |
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44 | $this->getCacheDriver(), |
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45 | $this->getCacheLifetime(), |
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46 | $this->relations, |
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47 | $this->where, |
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48 | $this->whereIn, |
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49 | $this->whereNotIn, |
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50 | $this->offset, |
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51 | $this->limit, |
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52 | $this->orderBy, |
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53 | ])); |
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54 | } |
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55 | |||
56 | /** |
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57 | * Store cache keys by mimicking cache tags. |
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58 | * |
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59 | * @param string $class |
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60 | * @param string $method |
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61 | * @param string $hash |
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62 | * |
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63 | * @return void |
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64 | */ |
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65 | protected function storeCacheKeys($class, $method, $hash): void |
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66 | { |
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67 | $keysFile = $this->getContainer('config')->get('rinvex.repository.cache.keys_file'); |
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68 | $cacheKeys = $this->getCacheKeys($keysFile); |
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69 | |||
70 | if (! isset($cacheKeys[$class]) || ! in_array($method.'.'.$hash, $cacheKeys[$class])) { |
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71 | $cacheKeys[$class][] = $method.'.'.$hash; |
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72 | file_put_contents($keysFile, json_encode($cacheKeys)); |
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73 | } |
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74 | } |
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75 | |||
76 | /** |
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77 | * Get cache keys. |
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78 | * |
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79 | * @param string $file |
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80 | * |
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81 | * @return array |
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82 | */ |
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83 | protected function getCacheKeys($file): array |
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84 | { |
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85 | if (! file_exists($file)) { |
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86 | file_put_contents($file, null); |
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87 | } |
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88 | |||
89 | return json_decode(file_get_contents($file), true) ?: []; |
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90 | } |
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91 | |||
92 | /** |
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93 | * Flush cache keys by mimicking cache tags. |
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94 | * |
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95 | * @return array |
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96 | */ |
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97 | protected function flushCacheKeys(): array |
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98 | { |
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99 | $flushedKeys = []; |
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100 | $calledClass = static::class; |
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101 | $config = $this->getContainer('config')->get('rinvex.repository.cache'); |
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102 | $cacheKeys = $this->getCacheKeys($config['keys_file']); |
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103 | |||
104 | if (isset($cacheKeys[$calledClass]) && is_array($cacheKeys[$calledClass])) { |
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105 | foreach ($cacheKeys[$calledClass] as $cacheKey) { |
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106 | $flushedKeys[] = $calledClass.'@'.$cacheKey; |
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107 | } |
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108 | |||
109 | unset($cacheKeys[$calledClass]); |
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110 | file_put_contents($config['keys_file'], json_encode($cacheKeys)); |
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111 | } |
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112 | |||
113 | return $flushedKeys; |
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114 | } |
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115 | |||
116 | /** |
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117 | * {@inheritdoc} |
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118 | */ |
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119 | public function setCacheLifetime($cacheLifetime) |
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120 | { |
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121 | $this->cacheLifetime = $cacheLifetime; |
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122 | |||
123 | return $this; |
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124 | } |
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125 | |||
126 | /** |
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127 | * {@inheritdoc} |
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128 | */ |
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129 | public function getCacheLifetime(): int |
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130 | { |
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131 | // Return value even if it's zero "0" (which means cache is disabled) |
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132 | return $this->cacheLifetime ?? $this->getContainer('config')->get('rinvex.repository.cache.lifetime'); |
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133 | } |
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134 | |||
135 | /** |
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136 | * {@inheritdoc} |
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137 | */ |
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138 | public function setCacheDriver($cacheDriver) |
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139 | { |
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140 | $this->cacheDriver = $cacheDriver; |
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141 | |||
142 | return $this; |
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143 | } |
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144 | |||
145 | /** |
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146 | * {@inheritdoc} |
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147 | */ |
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148 | public function getCacheDriver(): ?string |
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149 | { |
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150 | return $this->cacheDriver; |
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151 | } |
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152 | |||
153 | /** |
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154 | * {@inheritdoc} |
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155 | */ |
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156 | public function enableCacheClear($status = true) |
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157 | { |
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158 | $this->cacheClearEnabled = $status; |
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159 | |||
160 | return $this; |
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161 | } |
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162 | |||
163 | /** |
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164 | * {@inheritdoc} |
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165 | */ |
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166 | public function isCacheClearEnabled(): bool |
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167 | { |
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168 | return $this->cacheClearEnabled; |
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169 | } |
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170 | |||
171 | /** |
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172 | * {@inheritdoc} |
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173 | */ |
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174 | public function forgetCache() |
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175 | { |
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176 | if ($this->getCacheLifetime()) { |
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177 | // Flush cache tags |
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178 | if (method_exists($this->getContainer('cache')->getStore(), 'tags')) { |
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179 | $this->getContainer('cache')->tags($this->getRepositoryId())->flush(); |
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180 | } else { |
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181 | // Flush cache keys, then forget actual cache |
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182 | foreach ($this->flushCacheKeys() as $cacheKey) { |
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183 | $this->getContainer('cache')->forget($cacheKey); |
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184 | } |
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185 | } |
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186 | |||
187 | $this->getContainer('events')->dispatch($this->getRepositoryId().'.entity.cache.flushed', [$this]); |
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188 | } |
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189 | |||
190 | return $this; |
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191 | } |
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192 | |||
193 | /** |
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194 | * Cache given callback. |
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195 | * |
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196 | * @param string $class |
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197 | * @param string $method |
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198 | * @param array $args |
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199 | * @param \Closure $closure |
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200 | * |
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201 | * @return mixed |
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202 | */ |
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203 | protected function cacheCallback($class, $method, $args, Closure $closure) |
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204 | { |
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205 | $repositoryId = $this->getRepositoryId(); |
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206 | $lifetime = $this->getCacheLifetime(); |
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207 | $hash = $this->generateCacheHash($args); |
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208 | $cacheKey = $class.'@'.$method.'.'.$hash; |
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209 | |||
210 | // Switch cache driver on runtime |
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211 | if ($driver = $this->getCacheDriver()) { |
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212 | $this->getContainer('cache')->setDefaultDriver($driver); |
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213 | } |
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214 | |||
215 | // We need cache tags, check if default driver supports it |
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216 | if (method_exists($this->getContainer('cache')->getStore(), 'tags')) { |
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217 | $result = $lifetime === -1 |
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218 | ? $this->getContainer('cache')->tags($repositoryId)->rememberForever($cacheKey, $closure) |
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219 | : $this->getContainer('cache')->tags($repositoryId)->remember($cacheKey, $lifetime, $closure); |
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220 | |||
221 | // We're done, let's clean up! |
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222 | $this->resetRepository(); |
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223 | |||
224 | return $result; |
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225 | } |
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226 | |||
227 | // Default cache driver doesn't support tags, let's do it manually |
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228 | $this->storeCacheKeys($class, $method, $hash); |
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229 | |||
230 | $result = $lifetime === -1 |
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231 | ? $this->getContainer('cache')->rememberForever($cacheKey, $closure) |
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232 | : $this->getContainer('cache')->remember($cacheKey, $lifetime, $closure); |
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233 | |||
234 | // We're done, let's clean up! |
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235 | $this->resetCachedRepository(); |
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236 | |||
237 | return $result; |
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238 | } |
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239 | |||
240 | /** |
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241 | * Reset cached repository to its defaults. |
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242 | * |
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243 | * @return $this |
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244 | */ |
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245 | protected function resetCachedRepository() |
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246 | { |
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247 | $this->resetRepository(); |
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248 | |||
249 | $this->cacheLifetime = null; |
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250 | $this->cacheDriver = null; |
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251 | |||
252 | return $this; |
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253 | } |
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254 | } |
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255 |
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