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<?php |
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namespace Maztech\GraphNodes; |
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/** |
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* Class Collection |
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* |
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* Modified version of Collection in "illuminate/support" by Taylor Otwell |
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* |
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* @package Instagram |
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*/ |
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use ArrayAccess; |
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use ArrayIterator; |
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use Countable; |
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use IteratorAggregate; |
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class Collection implements ArrayAccess, Countable, IteratorAggregate |
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{ |
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/** |
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* The items contained in the collection. |
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* |
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* @var array |
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*/ |
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protected $items = []; |
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/** |
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* Create a new collection. |
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* |
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* @param array $items |
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*/ |
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public function __construct(array $items = []) |
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{ |
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$this->items = $items; |
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} |
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/** |
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* Gets the value of a field from the Graph node. |
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* |
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* @param string $name The field to retrieve. |
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* @param mixed $default The default to return if the field doesn't exist. |
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* |
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* @return mixed |
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*/ |
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public function getField($name, $default = null) |
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{ |
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if (isset($this->items[$name])) { |
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return $this->items[$name]; |
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} |
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return $default; |
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} |
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/** |
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* Gets the value of the named property for this graph object. |
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* |
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* @param string $name The property to retrieve. |
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* @param mixed $default The default to return if the property doesn't exist. |
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* |
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* @return mixed |
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* |
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* @deprecated 5.0.0 getProperty() has been renamed to getField() |
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* @todo v6: Remove this method |
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*/ |
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public function getProperty($name, $default = null) |
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{ |
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return $this->getField($name, $default); |
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} |
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/** |
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* Returns a list of all fields set on the object. |
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* |
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* @return array |
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*/ |
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public function getFieldNames() |
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{ |
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return array_keys($this->items); |
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} |
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/** |
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* Returns a list of all properties set on the object. |
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* |
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* @return array |
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* |
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* @deprecated 5.0.0 getPropertyNames() has been renamed to getFieldNames() |
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* @todo v6: Remove this method |
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*/ |
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public function getPropertyNames() |
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{ |
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return $this->getFieldNames(); |
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} |
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/** |
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* Get all of the items in the collection. |
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* |
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* @return array |
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*/ |
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public function all() |
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{ |
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return $this->items; |
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} |
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/** |
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* Get the collection of items as a plain array. |
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* |
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* @return array |
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*/ |
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public function asArray() |
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{ |
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return array_map(function ($value) { |
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return $value instanceof Collection ? $value->asArray() : $value; |
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}, $this->items); |
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} |
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/** |
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* Run a map over each of the items. |
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* |
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* @param \Closure $callback |
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* |
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* @return static |
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*/ |
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public function map(\Closure $callback) |
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{ |
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return new static(array_map($callback, $this->items, array_keys($this->items))); |
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} |
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/** |
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* Get the collection of items as JSON. |
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* |
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* @param int $options |
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* |
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* @return string |
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*/ |
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public function asJson($options = 0) |
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{ |
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return json_encode($this->asArray(), $options); |
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} |
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/** |
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* Count the number of items in the collection. |
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* |
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* @return int |
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*/ |
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public function count() |
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{ |
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return count($this->items); |
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} |
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/** |
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* Get an iterator for the items. |
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* |
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* @return ArrayIterator |
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*/ |
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public function getIterator() |
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{ |
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return new ArrayIterator($this->items); |
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} |
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/** |
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* Determine if an item exists at an offset. |
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* |
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* @param mixed $key |
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* |
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* @return bool |
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*/ |
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public function offsetExists($key) |
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{ |
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return array_key_exists($key, $this->items); |
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} |
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/** |
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* Get an item at a given offset. |
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* |
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* @param mixed $key |
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* |
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* @return mixed |
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*/ |
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public function offsetGet($key) |
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{ |
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return $this->items[$key]; |
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} |
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/** |
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* Set the item at a given offset. |
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* |
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* @param mixed $key |
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* @param mixed $value |
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* |
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* @return void |
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*/ |
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public function offsetSet($key, $value) |
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{ |
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if (is_null($key)) { |
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$this->items[] = $value; |
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} else { |
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$this->items[$key] = $value; |
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} |
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} |
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/** |
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* Unset the item at a given offset. |
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* |
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* @param string $key |
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* |
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* @return void |
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*/ |
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public function offsetUnset($key) |
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{ |
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unset($this->items[$key]); |
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} |
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/** |
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* Convert the collection to its string representation. |
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* |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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return $this->asJson(); |
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} |
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} |
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