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<?php |
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declare(strict_types=1); |
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namespace Psi\Component\ResourceBrowser; |
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use Psi\Component\ResourceBrowser\Filter\Filter\PassThroughFilter; |
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use Psi\Component\ResourceBrowser\Filter\FilterInterface; |
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use Puli\Repository\Api\ResourceRepository; |
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final class Browser |
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{ |
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private $repository; |
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private $nbColumns; |
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private $path; |
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private $filter; |
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private function __construct(ResourceRepository $repository, FilterInterface $filter, string $path, int $nbColumns) |
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{ |
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$this->repository = $repository; |
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$this->nbColumns = $nbColumns; |
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$this->path = $path; |
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$this->filter = $filter; |
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} |
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public static function createFromOptions(ResourceRepository $repository, array $options = []) |
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{ |
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$defaultOptions = [ |
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'path' => '/', |
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'nb_columns' => 4, |
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'filter' => new PassThroughFilter(), |
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]; |
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if ($diff = array_diff(array_keys($options), array_keys($defaultOptions))) { |
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throw new \InvalidArgumentException(sprintf( |
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'Invalid options: "%s". Valid options: "%s"', |
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implode('", "', $diff), |
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implode('", "', array_keys($defaultOptions)) |
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)); |
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} |
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$options = array_merge($defaultOptions, $options); |
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$browser = new self( |
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$repository, |
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$options['filter'], |
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$options['path'], |
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$options['nb_columns'] |
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); |
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return $browser; |
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} |
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public function getColumns() |
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{ |
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$columnPaths = $this->getColumnPaths($this->path); |
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return $this->getColumnsForPaths($columnPaths); |
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} |
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public function getColumnsForDisplay() |
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{ |
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$columnPaths = $this->getColumnPaths($this->path); |
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if (count($columnPaths) > $this->nbColumns) { |
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$columnPaths = array_slice($columnPaths, -$this->nbColumns); |
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} |
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return $this->getColumnsForPaths($columnPaths); |
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} |
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public function getCurrentColumn() |
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{ |
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return new Column($this->repository->get($this->path), $this->filter); |
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} |
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public function getPath() |
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{ |
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return $this->path; |
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} |
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public function getMaxColumns() |
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{ |
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return $this->nbColumns; |
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} |
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private function getColumnsForPaths(array $columnPaths) |
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{ |
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$columns = []; |
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foreach ($columnPaths as $columnPath) { |
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$resource = $this->repository->get($columnPath); |
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$columns[] = new Column($resource, $this->filter); |
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} |
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return $columns; |
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} |
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private function getColumnPaths($path) |
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{ |
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$columnNames = ['/']; |
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if ($path !== '/') { |
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$columnNames = explode('/', ltrim($path, '/')); |
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array_unshift($columnNames, '/'); |
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} |
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$columnPaths = []; |
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foreach ($columnNames as $columnName) { |
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if ($columnName !== '/') { |
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$elements[] = $columnName; |
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} |
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$columnPaths[] = empty($elements) ? '/' : '/' . implode('/', $elements); |
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} |
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return $columnPaths; |
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} |
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} |
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psiphp /
resource-browser
Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArrayis initialized the first time when the foreach loop is entered. You can also see that the value of thebarkey is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.