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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\Collection; |
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use BadMethodCallException; |
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use OutOfBoundsException; |
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class TabularCollection extends MultiCollection |
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{ |
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/** |
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* Tabular Where Search. |
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* |
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* Search for values of a certain key that meet a particular search criteria |
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* using either one of the "Collection\Criteria::" class constants, or its string |
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* counterpart. |
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* |
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* Warning: Only works for tabular collections (2-dimensional data array) |
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* |
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* @param string $key The key to compare to $val |
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* @param mixed|Callable $val Either a value to test against or a callable to |
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* run your own custom "where comparison logic" |
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* @param string $comp The type of comparison operation ot use (such as "==" |
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* or "instanceof"). Must be one of the self::* constants' values |
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* listed at the top of this class. |
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* @return TabularCollection A collection of rows that meet the criteria |
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* specified by $key, $val, and $comp |
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*/ |
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public function where($key, $val, $comp = null) |
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{ |
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1 |
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$data = []; |
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if ($this->hasColumn($key)) { |
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if (is_callable($val)) { |
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foreach ($this->data as $ln => $row) { |
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if ($val($row[$key], $key)) { |
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$data[$ln] = $row; |
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} |
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} |
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} else { |
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foreach ($this->data as $ln => $row) { |
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$fieldval = $row[$key]; |
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switch (strtolower($comp)) { |
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case Criteria::ID: |
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$comparison = $fieldval === $val; |
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break; |
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case Criteria::NID: |
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$comparison = $fieldval !== $val; |
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break; |
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1 |
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case Criteria::LT: |
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$comparison = $fieldval < $val; |
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break; |
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1 |
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case Criteria::LTE: |
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$comparison = $fieldval <= $val; |
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break; |
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1 |
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case Criteria::GT: |
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$comparison = $fieldval > $val; |
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break; |
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case Criteria::GTE: |
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$comparison = $fieldval >= $val; |
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break; |
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case Criteria::LIKE: |
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$comparison = strtolower($fieldval) == strtolower($val); |
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break; |
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1 |
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case Criteria::NLIKE: |
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$comparison = strtolower($fieldval) != strtolower($val); |
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break; |
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case Criteria::TOF: |
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$comparison = (strtolower(gettype($fieldval)) == strtolower($val)); |
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break; |
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case Criteria::NTOF: |
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$comparison = (strtolower(gettype($fieldval)) != strtolower($val)); |
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break; |
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case Criteria::NEQ: |
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$comparison = $fieldval != $val; |
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break; |
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case Criteria::MATCH: |
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$match = preg_match($val, $fieldval); |
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$comparison = $match === 1; |
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break; |
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case Criteria::NMATCH: |
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$match = preg_match($val, $fieldval); |
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$comparison = $match === 0; |
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break; |
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case Criteria::EQ: |
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default: |
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$comparison = $fieldval == $val; |
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break; |
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} |
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if ($comparison) { |
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$data[$ln] = $row; |
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} |
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} |
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} |
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} |
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return new TabularCollection($data); |
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} |
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/** |
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* Magic method call. |
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* |
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* @param string $method The name of the method |
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* @param array $args The argument list |
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* |
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* @throws BadMethodCallException If no method exists |
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* |
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* @return mixed |
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* |
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* @todo Add phpdoc comments for dynamic methods |
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* @todo throw BadMethodCallException |
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*/ |
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public function __call($method, $args) |
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{ |
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$argc = count($args); |
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if ($argc == 1 && $this->hasColumn($index = array_pop($args))) { |
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$column = $this->getColumn($index); |
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if (method_exists($column, $method)) { |
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return call_user_func_array([$column, $method], $args); |
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} |
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} |
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throw new BadMethodCallException('Method does not exist: ' . __CLASS__ . "::{$method}()"); |
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} |
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/** |
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* Does this collection have specified column? |
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* |
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* @param mixed $column The column index |
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* |
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* @return bool |
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*/ |
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public function hasColumn($column) |
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{ |
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try { |
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$this->getColumn($column); |
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return true; |
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} catch (OutOfBoundsException $e) { |
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return false; |
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} |
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} |
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/** |
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* Get column as collection. |
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* |
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* @param mixed $column The column index |
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* @param bool $throw Throw an exception on failure |
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* |
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* @return AbstractCollection|false |
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*/ |
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public function getColumn($column, $throw = true) |
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{ |
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$values = array_column($this->data, $column); |
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if (count($values)) { |
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return static::factory($values); |
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} |
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if ($throw) { |
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throw new OutOfBoundsException(__CLASS__ . ' could not find column: ' . $column); |
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} |
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return false; |
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} |
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/** |
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* Does this collection have a row at specified index? |
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* |
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* @param int $offset The column index |
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* |
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* @return bool |
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*/ |
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public function hasRow($offset) |
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{ |
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try { |
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$this->getRow($offset); |
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return true; |
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} catch (OutOfBoundsException $e) { |
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return false; |
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} |
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} |
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/** |
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* Get row at specified index. |
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* |
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* @param int $offset The row offset (starts from 0) |
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* |
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* @return AbstractCollection|false |
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*/ |
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3 |
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public function getRow($offset) |
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{ |
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return $this->getValueAtPosition($offset); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function map(callable $callback) |
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{ |
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1 |
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$ret = []; |
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foreach ($this->data as $key => $row) { |
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$ret[$key] = $callback(static::factory($row)); |
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} |
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return static::factory($ret); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function walk(callable $callback, $extraContext = null) |
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{ |
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foreach ($this as $offset => $row) { |
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$callback(static::factory($row), $offset, $extraContext); |
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} |
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return $this; |
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} |
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/** |
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* Is input data structure valid? |
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* |
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* In order to determine whether a given data structure is valid for a |
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* particular collection type (tabular, numeric, etc.), we have this method. |
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* |
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* @param mixed $data The data structure to check |
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* |
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* @return bool True if data structure is tabular |
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*/ |
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protected function isConsistentDataStructure($data) |
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{ |
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return static::isTabular($data); |
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} |
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} |
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nozavroni /
csvelte
