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<?php |
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/** |
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* @copyright Copyright (c) Flipbox Digital Limited |
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* @license https://github.com/flipboxfactory/craft-ember/blob/master/LICENSE |
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* @link https://github.com/flipboxfactory/craft-ember/ |
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*/ |
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namespace flipbox\ember\db; |
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use yii\base\ArrayableTrait; |
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use yii\db\ActiveQuery; |
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class CacheableActiveQuery extends ActiveQuery |
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{ |
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use ArrayableTrait; |
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/** |
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* @var array|null The cached query result |
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* @see setCachedResult() |
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*/ |
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private $result; |
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/** |
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* @var array|null The criteria params that were set when the cached query result was set |
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* @see setCachedResult() |
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*/ |
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private $resultCriteria; |
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/** |
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* @inheritdoc |
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*/ |
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public function count($q = '*', $db = null) |
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{ |
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// Cached? |
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if (($cachedResult = $this->getCachedResult()) !== null) { |
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return count($cachedResult); |
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} |
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return parent::count($q, $db) ?: 0; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function all($db = null) |
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{ |
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// Cached? |
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if (($cachedResult = $this->getCachedResult()) !== null) { |
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return $cachedResult; |
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} |
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return parent::all($db); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function one($db = null) |
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{ |
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// Cached? |
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if (($cachedResult = $this->getCachedResult()) !== null) { |
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// Conveniently, reset() returns false on an empty array, just like one() should do for an empty result |
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return reset($cachedResult); |
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} |
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return parent::one($db); |
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} |
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/** |
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* Returns the resulting domains set by [[setCachedResult()]], if the criteria params haven’t changed since then. |
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* |
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* @return array|null The resulting domains, or null if setCachedResult() was never called or the criteria has |
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* changed |
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* @see setCachedResult() |
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*/ |
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public function getCachedResult() |
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{ |
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if ($this->result === null) { |
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return null; |
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} |
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// Make sure the criteria hasn't changed |
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if ($this->resultCriteria !== $this->getCriteria()) { |
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$this->result = null; |
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return null; |
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} |
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return $this->result; |
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} |
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/** |
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* Sets the resulting domains. |
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* |
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* If this is called, [[all()]] will return these domains rather than initiating a new SQL query, |
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* as long as none of the parameters have changed since setCachedResult() was called. |
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* |
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* @param array $objects The resulting objects. |
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* |
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* @see getCachedResult() |
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*/ |
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public function setCachedResult(array $objects) |
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{ |
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$this->result = $objects; |
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$this->resultCriteria = $this->getCriteria(); |
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} |
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/** |
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* Returns an array of the current criteria attribute values. |
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* |
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* @return array |
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*/ |
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public function getCriteria(): array |
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{ |
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return $this->toArray($this->criteriaAttributes(), [], false); |
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} |
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/** |
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* Returns the query's criteria attributes. |
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* |
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* @return string[] |
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*/ |
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public function criteriaAttributes(): array |
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{ |
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// By default, include all public, non-static properties that were defined by a sub class, and certain ones |
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// in this class |
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$class = new \ReflectionClass($this); |
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$names = []; |
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foreach ($class->getProperties(\ReflectionProperty::IS_PUBLIC) as $property) { |
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if (!$property->isStatic()) { |
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$dec = $property->getDeclaringClass(); |
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if (($dec->getName() === self::class || $dec->isSubclassOf(self::class)) |
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) { |
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$names[] = $property->getName(); |
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} |
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} |
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} |
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return $names; |
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} |
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} |
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flipboxfactory /
craft-ember
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