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<?php |
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/** |
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* ObjectSlicer class file |
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*/ |
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namespace Graviton\RestBundle\Utils; |
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/** |
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* Object slicer like MongoDb "select" operator |
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* |
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* @author List of contributors <https://github.com/libgraviton/graviton/graphs/contributors> |
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* @license http://opensource.org/licenses/gpl-license.php GNU Public License |
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* @link http://swisscom.ch |
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*/ |
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class ObjectSlicer |
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{ |
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/** |
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* Make slice |
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* |
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* @param object|array $value Value |
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* @param string $path Path |
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* @return object|array |
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* |
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* @throws \InvalidArgumentException |
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*/ |
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public function slice($value, $path) |
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{ |
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if (!is_array($value) && !is_object($value)) { |
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throw new \InvalidArgumentException('Value must be an array or an object'); |
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} |
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return $this->sliceRecursive($value, explode('.', $path)); |
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} |
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/** |
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* Make and merge slices |
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* |
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* @param object|array $value Value |
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* @param array $paths Paths |
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* @return object|array |
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* |
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* @throws \InvalidArgumentException |
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*/ |
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public function sliceMulti($value, array $paths) |
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{ |
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if (!is_array($value) && !is_object($value)) { |
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throw new \InvalidArgumentException('Value must be an array or an object'); |
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} |
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if (empty($paths)) { |
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throw new \InvalidArgumentException('Paths must contain at least one element'); |
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} |
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$paths = array_unique($paths); |
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$paths = $this->normalizePaths($paths); |
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$parts = []; |
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foreach ($paths as $path) { |
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$parts[] = $this->sliceRecursive($value, explode('.', $path)); |
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} |
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$result = array_shift($parts); |
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foreach ($parts as $part) { |
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$this->mergeSliceRecursive($result, $part); |
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} |
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return $result; |
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} |
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/** |
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* Make slice recursive |
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* |
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* @param object|array $value Value |
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* @param array $keys Keys |
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* @return object|array |
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*/ |
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private function sliceRecursive($value, array $keys) |
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{ |
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if (is_array($value) && !empty($value) && array_keys($value) !== range(0, count($value) - 1)) { |
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$value = (object) $value; |
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} |
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if (is_object($value)) { |
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$result = new \stdClass(); |
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$key = array_shift($keys); |
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if (property_exists($value, $key)) { |
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if (empty($keys)) { |
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$result->{$key} = $value->{$key}; |
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View Code Duplication |
} elseif (is_object($value->{$key}) || is_array($value->{$key})) { |
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$result->{$key} = $this->sliceRecursive($value->{$key}, $keys); |
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} |
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} |
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return $result; |
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} else { |
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$result = []; |
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foreach ($value as $subvalue) { |
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if (empty($keys)) { |
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$result[] = $subvalue; |
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} elseif (is_object($subvalue) || is_array($subvalue)) { |
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$result[] = $this->sliceRecursive($subvalue, $keys); |
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} |
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} |
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return $result; |
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} |
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} |
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/** |
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* Merge slices |
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* |
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* @param object|array $dst Dst |
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* @param object|array $src Src |
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* @return void |
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*/ |
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private function mergeSliceRecursive($dst, $src) |
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{ |
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if (is_object($dst)) { |
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foreach ((array) $src as $key => $value) { |
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View Code Duplication |
if (!property_exists($dst, $key)) { |
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$dst->{$key} = $value; |
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} elseif (is_object($value) || is_array($value)) { |
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$this->mergeSliceRecursive($dst->{$key}, $value); |
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} |
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} |
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} else { |
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foreach ($src as $key => $value) { |
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if (is_object($value) || is_array($value)) { |
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$this->mergeSliceRecursive($dst[$key], $value); |
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} |
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} |
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} |
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} |
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/** |
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* Normalize paths |
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* |
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* It removes duplicates: |
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* ["a.b", "b.c.d", "c.d", "a", "b"] -> ["a", "b", "c.d"] |
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* |
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* @param array $paths Paths |
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* @return array |
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*/ |
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private function normalizePaths(array $paths) |
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{ |
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$result = $paths; |
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foreach ($paths as $path) { |
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$result = array_filter( |
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$result, |
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function ($item) use ($path) { |
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return strpos($item, $path.'.') !== 0; |
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} |
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); |
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} |
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return $result; |
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} |
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} |
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libgraviton /
graviton
Loading history...
This check looks for the generic type
arrayas a return type and suggests a more specific type. This type is inferred from the actual code.