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WalkNodes.php
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WalkNodes.php
47 lines
| 1 | <?php |
| 2 | |
| 3 | namespace Give\Framework\FieldsAPI\Concerns; |
| 4 | |
| 5 | use Give\Framework\FieldsAPI\Contracts\Collection; |
| 6 | |
| 7 | /** |
| 8 | * A declarative iterator for each Node in the tree. |
| 9 | */ |
| 10 | trait WalkNodes { |
| 11 | |
| 12 | /** |
| 13 | * @param callable $callback |
| 14 | * |
| 15 | * @return void |
| 16 | */ |
| 17 | public function walk( callable $callback ) { |
| 18 | $this->walkCollection( $this, $callback ); |
| 19 | } |
| 20 | |
| 21 | /** |
| 22 | * @param Collection $collection |
| 23 | * @param callable $callback |
| 24 | * |
| 25 | * @return void |
| 26 | */ |
| 27 | public function walkCollection( Collection $collection, callable $callback ) { |
| 28 | foreach ( $collection->all() as $node ) { |
| 29 | $callback( $node ); |
| 30 | if ( $node instanceof Collection ) { |
| 31 | $this->walkCollection( $node, $callback ); |
| 32 | } |
| 33 | } |
| 34 | } |
| 35 | |
| 36 | /** |
| 37 | * @param callable $callback |
| 38 | * |
| 39 | * @return void |
| 40 | */ |
| 41 | public function walkFields( callable $callback ) { |
| 42 | foreach ( $this->getFields() as $field ) { |
| 43 | $callback( $field ); |
| 44 | } |
| 45 | } |
| 46 | } |
| 47 |