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<?php |
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/** |
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* This file is part of the Zemit Framework. |
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* |
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* (c) Zemit Team <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE.txt |
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* file that was distributed with this source code. |
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*/ |
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namespace Zemit\Mvc\Model; |
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use Zemit\Mvc\Model\EagerLoading\Loader; |
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trait EagerLoading |
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{ |
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/** |
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* <code> |
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* <?php |
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* |
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* $limit = 100; |
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* $offset = max(0, $this->request->getQuery('page', 'int') - 1) * $limit; |
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* |
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* $manufacturers = Manufacturer::with('Robots.Parts', [ |
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* 'limit' => [$limit, $offset] |
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* ]); |
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* |
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* foreach ($manufacturers as $manufacturer) { |
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* foreach ($manufacturer->robots as $robot) { |
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* foreach ($robot->parts as $part) { ... } |
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* } |
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* } |
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* |
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* </code> |
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* |
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* @param mixed ...$arguments |
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*/ |
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public static function findWith(array ...$arguments) |
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{ |
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$parameters = self::getParametersFromArguments($arguments); |
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$list = static::find($parameters); |
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if ($list->count()) { |
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return Loader::fromResultset($list, ...$arguments); |
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} |
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return $list; |
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} |
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/** |
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* Same as EagerLoadingTrait::findWith() for a single record |
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* |
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* @param mixed ...$arguments |
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* @return false|\Phalcon\Mvc\ModelInterface |
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*/ |
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public static function findFirstWith(array ...$arguments) |
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{ |
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$parameters = self::getParametersFromArguments($arguments); |
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$entity = static::findFirst($parameters); |
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if ($entity) { |
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return Loader::fromModel($entity, ...$arguments); |
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} |
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return $entity; |
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} |
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/** |
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* @deprecated |
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* Alias of findWith |
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*/ |
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public static function with(array ...$arguments) |
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{ |
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return self::findWith(...$arguments); |
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} |
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/** |
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* @deprecated |
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* Alias of findWith |
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*/ |
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public static function firstWith(array ...$arguments) |
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{ |
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return self::findWith(...$arguments); |
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} |
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/** |
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* Call magic method to make the with works in an implicit way |
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* @todo change it to behavior missingMethods() |
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* @todo change it |
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*/ |
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public static function __callStatic(string $method, array $arguments = []) |
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{ |
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// Single - FindFirstBy... |
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if (strpos($method, 'findFirstWithBy') === 0 || strpos($method, 'firstWithBy') === 0) { |
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$forwardMethod = str_replace(['findFirstWithBy', 'firstWithBy'], 'findFirstBy', $method); |
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$parameters = self::getParametersFromArguments($arguments); |
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$entity = parent::$forwardMethod($parameters); |
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if ($entity) { |
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return Loader::fromModel($entity, ...$arguments); |
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} |
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return $entity; |
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} |
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// List - FindWithBy... |
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elseif (strpos($method, 'findWithBy') === 0 || strpos($method, 'withBy') === 0) { |
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$forwardMethod = str_replace(['findWithBy', 'withBy'], 'findBy', $method); |
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$parameters = self::getParametersFromArguments($arguments); |
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$list = parent::$forwardMethod($parameters); |
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if ($list->count()) { |
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return Loader::fromResultset($list, ...$arguments); |
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} |
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return $list; |
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} |
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return parent::$method(...$arguments); |
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} |
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/** |
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* <code> |
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* |
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* $manufacturer = Manufacturer::findFirstById(51); |
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* |
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* $manufacturer->load('Robots.Parts'); |
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* |
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* foreach ($manufacturer->robots as $robot) { |
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* foreach ($robot->parts as $part) { ... } |
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* } |
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* |
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* </code> |
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* |
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* @param mixed ...$arguments |
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* @return \Phalcon\Mvc\ModelInterface |
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*/ |
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public function load(array ...$arguments) |
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{ |
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return Loader::fromModel($this, ...$arguments); |
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} |
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/** |
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* Get the query parameters from a list of arguments |
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* @return mixed |
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*/ |
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public static function getParametersFromArguments(array &$arguments) |
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{ |
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$parameters = null; |
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if (!empty($arguments)) { |
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$numArgs = count($arguments); |
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$lastArg = $numArgs - 1; |
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if ($numArgs >= 2) { |
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$parameters = $arguments[$lastArg]; |
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unset($arguments[$lastArg]); |
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if (isset($parameters['columns'])) { |
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throw new \LogicException('Results from database must be full models, do not use `columns` key'); |
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} |
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} |
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} |
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return $parameters; |
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} |
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} |
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