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<?php namespace Chekote\NounStore; |
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use Illuminate\Support\Arr; |
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use InvalidArgumentException; |
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class Store |
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{ |
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/** @var Key */ |
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protected $keyService; |
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/** @var array */ |
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protected $nouns; |
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/** |
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* @param Key $keyService the key service to use for parsing and building keys |
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* @codeCoverageIgnore |
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*/ |
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public function __construct(Key $keyService = null) |
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{ |
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$this->keyService = $keyService ?: Key::getInstance(); |
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} |
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/** |
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* Removes all entries from the store. |
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* |
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* @return void |
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*/ |
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public function reset() |
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{ |
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$this->nouns = []; |
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} |
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/** |
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* Retrieves a value for the specified key. |
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* |
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* Each key is actually a collection. If you do not specify which item in the collection you want, |
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* the method will return the most recent entry. You can optionally specify the entry you want by |
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* using the plain english 1st, 2nd, 3rd etc in the $key param. For example: |
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* |
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* Retrieve the most recent entry "Thing" collection: |
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* retrieve("Thing") |
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* |
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* Retrieve the 1st entry in the "Thing" collection: |
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* retrieve("1st Thing") |
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* |
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* Retrieve the 3rd entry in the "Thing" collection: |
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* retrieve("3rd Thing") |
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* |
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* @see Key::build() |
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* @see Key::parseNoun() |
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* @param string $key The key to retrieve the value for. Supports nth notation. |
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* @throws InvalidArgumentException if the key syntax is invalid. |
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* @return mixed The value, or null if no value exists for the specified key/index combination. |
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*/ |
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public function get($key) |
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{ |
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$i = 0; |
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return array_reduce( |
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$this->keyService->parse($key), |
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static function ($carry, $item) use (&$i) { |
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list($noun, $index) = $item; |
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$carry = data_get($carry, $noun); |
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try { |
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// Was a specific index requested? |
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if ($index !== null) { |
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// Yes, fetch the specific index |
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return data_get($carry, $index); |
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} else { |
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// No, return the noun itself, or the latest noun if this is the |
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// first component of the key, and the noun is a collection |
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return $i === 0 && Arr::accessible($carry) ? end($carry) : $carry; |
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} |
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} finally { |
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++$i; |
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} |
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}, |
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$this->nouns |
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); |
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} |
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/** |
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* Retrieves all values for the specified key. |
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* |
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* @param string $key The key to retrieve the values for. Does not support nth notation. |
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* @return array The values, or an empty array if no value exists for the specified key. |
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*/ |
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public function getAll($key) |
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{ |
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return isset($this->nouns[$key]) ? $this->nouns[$key] : []; |
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} |
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/** |
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* Determines if a value has been stored for the specified key. |
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* |
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* @see Key::build() |
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* @see Key::parseNoun() |
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* @param string $key The key to check. Supports nth notation. |
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* @throws InvalidArgumentException if the key syntax is invalid. |
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* @return bool True if the a value has been stored, false if not. |
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*/ |
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public function keyExists($key) |
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{ |
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return $this->get($key) !== null; |
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} |
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/** |
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* Asserts that the key's value contains the specified string. |
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* |
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* @see Key::build() |
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* @see Key::parseNoun() |
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* @param string $key The key to check. |
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* @param string $value The value expected to be contained within the key's value. |
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* @throws InvalidArgumentException if the key syntax is invalid. |
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* @return bool True if the key's value contains the specified string, false if not. |
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*/ |
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public function keyValueContains($key, $value) |
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{ |
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$actual = $this->get($key); |
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return is_string($actual) && strpos($actual, $value) !== false; |
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} |
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/** |
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* Stores a value for the specified key. |
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* |
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* The specified value is added to the top of the "stack" for the specified key. |
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* |
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* @param string $key The key to store the value under. Does not support nth notation. |
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* @param mixed $value The value to store. |
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*/ |
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public function set($key, $value) |
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{ |
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$this->nouns[$key][] = $value; |
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} |
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/** |
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* Asserts that the key's value contains the specified class instance. |
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* |
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* @see Key::build() |
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* @see Key::parseNoun() |
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* @param string $key The key to check. |
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* @param string $class The class instance expected to be contained within the key's value. |
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* @return bool True if the key's value contains the specified class instance, false if not. |
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* @throws InvalidArgumentException if the key syntax is invalid. |
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*/ |
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public function keyIsClass($key, $class) |
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{ |
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$actual = $this->get($key); |
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return $actual instanceof $class; |
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} |
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} |
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Chekote /
noun-store
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