add get document

src/Database/Adapter/DynamoDB.php

@@ -508,7 +508,65 @@ public function deleteIndex(string $collection, string $id): bool
  */
  public function getDocument(string $collection, string $id, array $queries = []): Document
  {
- return new Document();
+ $tableName = "{$this->getNamespace()}_{$collection}";
+ $id = $this->filter($id);
+
+ $selections = $this->getAttributeSelections($queries);
+
+ $getItemParams = [
+ 'TableName' => $tableName,
+ 'IndexName' => '_uid',
+ 'KeyConditionExpression' => '#uid = :uid',
+ 'ExpressionAttributeValues' => [
+ ':uid' => [
+ 'S' => $id,
+ ],
+ ],
+ 'ExpressionAttributeNames' => [ '#uid' => '_uid' ],
+ ];
+
+ if (!empty($selections) && !\in_array('*', $selections)) {
+ $getItemParams['ProjectionExpression'] = $this->getAttributeProjection($selections);
+ }
+
+ $result = $this->client->query($getItemParams);
+
+ $result = $result['Items'];
+
+ if (empty($result)) {
+ return new Document([]);
+ }
+
+ $document = [];
+
+ foreach ($result[0] as $resultKey => $resultAttributes) {
+ foreach ($resultAttributes as $attribute) {
+ $document[$resultKey] = $attribute;
+ }
+ }
+
+ if (\array_key_exists('_id', $document)) {
+ $document['$internalId'] = $result['_id'];
+ unset($document['_id']);
+ }
+ if (\array_key_exists('_uid', $document)) {
+ $document['$id'] = $document['_uid'];
+ unset($document['_uid']);
+ }
+ if (\array_key_exists('_createdAt', $document)) {
+ $document['$createdAt'] = $document['_createdAt'];
+ unset($document['_createdAt']);
+ }
+ if (\array_key_exists('_updatedAt', $document)) {
+ $document['$updatedAt'] = $document['_updatedAt'];
+ unset($document['_updatedAt']);
+ }
+ if (\array_key_exists('_permissions', $document)) {
+ $document['$permissions'] = json_decode($document['_permissions'] ?? '[]', true);
+ unset($document['_permissions']);
+ }
+
+ return new Document($document);
  }
 
  /**
@@ -831,7 +889,17 @@ public function getKeywords(): array
  */
  protected function getAttributeProjection(array $selections, string $prefix = ''): mixed
  {
- return false;
+ $projection = ['_uid', '_id', '_createdAt', '_updatedAt', '_permissions'];
+
+ foreach ($selections as $selection) {
+ // Skip internal attributes since all are selected by default
+ if (\in_array($selection, Database::INTERNAL_ATTRIBUTES)) {
+ continue;
+ }
+
+ \array_push($projection, $selection);
+ }
+ return \implode(", ", $projection);
  }
 
  /**