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<?php |
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/* |
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* CSVelte: Slender, elegant CSV for PHP |
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* Inspired by Python's CSV module and Frictionless Data and the W3C's CSV |
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* standardization efforts, CSVelte was written in an effort to take all the |
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* suck out of working with CSV. |
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* |
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* @version {version} |
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* @copyright Copyright (c) 2016 Luke Visinoni <[email protected]> |
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* @author Luke Visinoni <[email protected]> |
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* @license https://github.com/deni-zen/csvelte/blob/master/LICENSE The MIT License (MIT) |
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*/ |
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namespace CSVelte\Reader; |
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use CSVelte\Reader as CsvReader; |
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use FilterIterator; |
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/** |
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* Filtered Reader Iterator. |
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* |
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* This class is not intended to be instantiated manually. It is returned by the |
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* CSVelte\Reader class when filter() is called to iterate over the CSV file, |
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* skipping all rows that don't pass the filter(s) tests. |
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* |
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* @package CSVelte |
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* @subpackage Reader |
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* |
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* @since v0.1 |
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* |
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* @internal |
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*/ |
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class FilteredIterator extends FilterIterator |
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{ |
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/** |
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* A list of callback functions. |
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* |
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* @var array of Callable objects/functions |
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*/ |
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protected $filters = []; |
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/** |
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* FilteredIterator Constructor. |
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* |
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* Initializes the iterator using the CSV reader and its array of callback |
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* filter functions/callables. |
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* |
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* @param \CSVelte\Reader $reader The CSV reader being iterated |
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* @param array $filters The list of callbacks |
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*/ |
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public function __construct(CsvReader $reader, array $filters) |
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{ |
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$this->filters = $filters; |
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parent::__construct($reader); |
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} |
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/** |
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* Run filters against each row. |
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* Loop through all of the callback functions, and if any of them fail, do |
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* not include this row in the iteration. |
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* |
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* @return bool |
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* |
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* @todo filter functions should accept current row, index, AND ref to reader |
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*/ |
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public function accept() |
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{ |
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$reader = $this->getInnerIterator(); |
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foreach ($this->filters as $filter) { |
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if (!$filter($reader->current())) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* Return this object as an array. |
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* |
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* @return array This object as an array |
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*/ |
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public function toArray() |
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{ |
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return array_map(function ($row) { |
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return $row->toArray(); |
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}, iterator_to_array($this)); |
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} |
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} |
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nozavroni /
csvelte
