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<?php |
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namespace Thinktomorrow\Vine\Branch; |
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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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use Thinktomorrow\Vine\VineException; |
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class BranchCollection implements ArrayAccess, Countable, IteratorAggregate |
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{ |
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private $branches; |
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public function __construct(array $branches = []) |
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{ |
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self::validateBranches($branches); |
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$this->branches = $branches; |
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} |
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public function hasBranches() |
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{ |
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return ($this->branches && count($this->branches) > 0); |
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} |
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public function push(Branch $branch) |
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{ |
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$this->branches[] = $branch; |
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return $this; |
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} |
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public function __get($key) |
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{ |
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if(isset($this->$key)) return $this->$key; |
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throw VineException::unknownBranchCollectionAttribute($key); |
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} |
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public static function validateBranches($branches) |
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{ |
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foreach($branches as $branch) |
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{ |
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if(!$branch instanceof Branch) |
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{ |
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throw VineException::requiredAsBranch($branch); |
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} |
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} |
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} |
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public function offsetSet($offset, $value) { |
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if (is_null($offset)) { |
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$this->branches[] = $value; |
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} else { |
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$this->branches[$offset] = $value; |
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} |
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} |
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public function offsetExists($offset) { |
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return isset($this->branches[$offset]); |
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} |
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public function offsetUnset($offset) { |
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unset($this->branches[$offset]); |
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} |
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public function offsetGet($offset) { |
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return isset($this->branches[$offset]) ? $this->branches[$offset] : null; |
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} |
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public function count() |
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{ |
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return count($this->branches); |
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} |
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/** |
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* Iterator for the branches |
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* |
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* @return \ArrayIterator |
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*/ |
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public function getIterator() |
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{ |
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return new ArrayIterator($this->branches); |
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} |
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public function toArray() |
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{ |
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return BuildArray::fromCollection($this); |
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} |
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public function flatten() |
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{ |
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// return a flattened array of all branch items |
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} |
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} |
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thinktomorrow /
vine
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.