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<?php |
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namespace BaoPham\DynamoDb; |
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use Illuminate\Database\Eloquent\Collection; |
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class DynamoDbCollection extends Collection |
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{ |
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protected $lastEvaluatedKey = null; |
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protected $conditionIndexKeys = null; |
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protected $model = null; |
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90 |
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public function __construct(array $models = [], $lastEvaluatedKey = null, $conditionIndexKeys = null) |
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{ |
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90 |
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parent::__construct($models); |
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$this->lastEvaluatedKey = $lastEvaluatedKey; |
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$this->conditionIndexKeys = $conditionIndexKeys; |
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90 |
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if (!$this->isEmpty()) { |
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$class = get_class($this->first()); |
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$this->model = new $class; |
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} |
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90 |
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} |
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public function getLastEvaluatedKey() |
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{ |
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if (!empty($this->lastEvaluatedKey)) { |
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return $this->lastEvaluatedKey; |
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} |
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$after = $this->last(); |
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if (empty($after)) { |
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return null; |
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} |
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$afterKey = $after->getKeys(); |
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if ($this->conditionIndexKeys) { |
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$columns = array_values($conditionIndexKeys['keysInfo']); |
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foreach ($columns as $column) { |
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$afterKey[$column] = $after->getAttribute($column); |
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} |
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} |
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return $this->model->unmarshalValue($this->getDynamoDbKey($afterKey)); |
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} |
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/** |
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* Return key for DynamoDb query. |
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* |
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* @param array|null $modelKeys |
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* @return array |
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* |
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* e.g. |
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* [ |
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* 'id' => ['S' => 'foo'], |
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* ] |
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* |
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* or |
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* |
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* [ |
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* 'id' => ['S' => 'foo'], |
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* 'id2' => ['S' => 'bar'], |
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* ] |
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*/ |
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protected function getDynamoDbKey($modelKeys = null) |
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{ |
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$modelKeys = $modelKeys ?: $this->model->getKeys(); |
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$keys = []; |
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foreach ($modelKeys as $key => $value) { |
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if (is_null($value)) { |
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continue; |
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} |
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$keys[$key] = $this->model->marshalValue($value); |
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} |
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return $keys; |
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} |
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} |
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baopham /
laravel-dynamodb
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