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<?php |
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namespace wpCloud\StatelessMedia\Google_Client; |
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|
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/** |
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* Extension to the regular Google_Model that automatically |
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* exposes the items array for iteration, so you can just |
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* iterate over the object rather than a reference inside. |
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*/ |
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class Google_Collection extends Google_Model implements \Iterator, \Countable |
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{ |
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protected $collection_key = 'items'; |
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|
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public function rewind() |
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{ |
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if (isset($this->{$this->collection_key}) |
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&& is_array($this->{$this->collection_key})) { |
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reset($this->{$this->collection_key}); |
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} |
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} |
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|
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public function current() |
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{ |
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$this->coerceType($this->key()); |
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if (is_array($this->{$this->collection_key})) { |
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return current($this->{$this->collection_key}); |
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} |
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} |
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|
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public function key() |
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{ |
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if (isset($this->{$this->collection_key}) |
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&& is_array($this->{$this->collection_key})) { |
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return key($this->{$this->collection_key}); |
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} |
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} |
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|
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public function next() |
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{ |
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return next($this->{$this->collection_key}); |
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} |
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|
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public function valid() |
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{ |
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$key = $this->key(); |
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return $key !== null && $key !== false; |
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} |
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|
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public function count() |
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{ |
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if (!isset($this->{$this->collection_key})) { |
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return 0; |
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} |
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return count($this->{$this->collection_key}); |
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} |
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|
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public function offsetExists($offset) |
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{ |
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if (!is_numeric($offset)) { |
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return parent::offsetExists($offset); |
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} |
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return isset($this->{$this->collection_key}[$offset]); |
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} |
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|
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public function offsetGet($offset) |
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{ |
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if (!is_numeric($offset)) { |
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return parent::offsetGet($offset); |
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} |
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$this->coerceType($offset); |
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return $this->{$this->collection_key}[$offset]; |
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} |
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|
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public function offsetSet($offset, $value) |
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{ |
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if (!is_numeric($offset)) { |
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return parent::offsetSet($offset, $value); |
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} |
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$this->{$this->collection_key}[$offset] = $value; |
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} |
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|
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public function offsetUnset($offset) |
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{ |
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if (!is_numeric($offset)) { |
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return parent::offsetUnset($offset); |
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} |
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unset($this->{$this->collection_key}[$offset]); |
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} |
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|
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private function coerceType($offset) |
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{ |
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$keyType = $this->keyType($this->collection_key); |
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if ($keyType && !is_object($this->{$this->collection_key}[$offset])) { |
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$this->{$this->collection_key}[$offset] = |
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new $keyType($this->{$this->collection_key}[$offset]); |
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} |
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} |
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} |
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|
