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<?php |
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namespace DataDiff; |
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use Generator; |
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use PDO; |
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use PDOStatement; |
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use Traversable; |
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class DiffStorageStore implements DiffStorageStoreInterface { |
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/** @var PDO */ |
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private $pdo; |
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/** @var PDOStatement */ |
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private $insertStmt; |
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/** @var PDOStatement */ |
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private $replaceStmt; |
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/** @var PDOStatement */ |
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private $selectStmt; |
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/** @var PDOStatement */ |
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private $updateStmt; |
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/** @var string */ |
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private $storeA; |
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/** @var string */ |
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private $storeB; |
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/** @var int */ |
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private $counter = 0; |
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/** @var callable */ |
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private $duplicateKeyHandler; |
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/** @var array */ |
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private $converter; |
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/** @var string[] */ |
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private $keys; |
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/** @var string[] */ |
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private $valueKeys; |
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/** |
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* @param PDO $pdo |
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* @param string $keySchema |
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* @param string $valueSchema |
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* @param string[] $keys |
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* @param string[] $valueKeys |
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* @param array $converter |
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* @param string $storeA |
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* @param string $storeB |
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* @param callable $duplicateKeyHandler |
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*/ |
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public function __construct(PDO $pdo, $keySchema, $valueSchema, array $keys, array $valueKeys, array $converter, $storeA, $storeB, $duplicateKeyHandler) { |
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$this->pdo = $pdo; |
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$this->selectStmt = $this->pdo->prepare("SELECT s_data FROM data_store WHERE s_ab='{$storeA}' AND s_key={$keySchema} AND (1=1 OR s_value={$valueSchema})"); |
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$this->replaceStmt = $this->pdo->prepare("INSERT OR REPLACE INTO data_store (s_ab, s_key, s_value, s_data, s_sort) VALUES ('{$storeA}', {$keySchema}, {$valueSchema}, :___data, :___sort)"); |
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$this->insertStmt = $this->pdo->prepare("INSERT INTO data_store (s_ab, s_key, s_value, s_data, s_sort) VALUES ('{$storeA}', {$keySchema}, {$valueSchema}, :___data, :___sort)"); |
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$this->updateStmt = $this->pdo->prepare("UPDATE data_store SET s_value={$valueSchema}, s_data=:___data WHERE s_ab='{$storeA}' AND s_key={$keySchema}"); |
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$this->storeA = $storeA; |
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$this->storeB = $storeB; |
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$this->keys = $keys; |
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$this->valueKeys = $valueKeys; |
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$this->converter = $converter; |
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$this->duplicateKeyHandler = $duplicateKeyHandler; |
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} |
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/** |
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* @param array $data |
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* @param array $translation |
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* @param callable $duplicateKeyHandler |
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*/ |
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public function addRow(array $data, array $translation = null, $duplicateKeyHandler = null) { |
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$data = $this->translate($data, $translation); |
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if($duplicateKeyHandler === null) { |
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$duplicateKeyHandler = $this->duplicateKeyHandler; |
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} |
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$buildMetaData = function (array $data, array $keys) { |
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$metaData = $data; |
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$metaData = array_diff_key($metaData, array_diff_key($metaData, $keys)); |
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$metaData['___data'] = json_encode($data); |
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$metaData['___sort'] = $this->counter; |
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return $metaData; |
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}; |
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$metaData = $buildMetaData($data, $this->converter); |
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if($duplicateKeyHandler === null) { |
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$this->replaceStmt->execute($metaData); |
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} else { |
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try { |
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$this->insertStmt->execute($metaData); |
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} catch (\PDOException $e) { |
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if(strpos($e->getMessage(), 'UNIQUE constraint failed') !== false) { |
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$metaData = $buildMetaData($data, $this->converter); |
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unset($metaData['___data']); |
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unset($metaData['___sort']); |
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$this->selectStmt->execute($metaData); |
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$oldData = $this->selectStmt->fetch(PDO::FETCH_COLUMN, 0); |
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if($oldData === null) { |
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$oldData = []; |
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} else { |
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$oldData = json_decode($oldData, true); |
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} |
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$data = $duplicateKeyHandler($data, $oldData); |
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$metaData = $buildMetaData($data, $this->converter); |
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unset($metaData['___sort']); |
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$this->updateStmt->execute($metaData); |
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} else { |
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throw $e; |
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} |
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} |
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} |
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} |
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/** |
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* @param Traversable|array $rows |
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* @param array $translation |
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* @param callable $duplicateKeyHandler |
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* @return $this |
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*/ |
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public function addRows($rows, array $translation = null, $duplicateKeyHandler = null) { |
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foreach($rows as $row) { |
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$this->addRow($row, $translation, $duplicateKeyHandler); |
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} |
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return $this; |
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} |
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/** |
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* Returns true whenever there is any changed, added or removed data available |
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*/ |
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public function hasAnyChanges() { |
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/** @noinspection PhpUnusedLocalVariableInspection */ |
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foreach($this->getNewOrChanged() as $_) { |
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return true; |
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} |
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/** @noinspection PhpUnusedLocalVariableInspection */ |
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foreach($this->getMissing() as $_) { |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Get all rows, that are present in this store, but not in the other |
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* |
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* @return Generator|DiffStorageStoreRow[] |
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*/ |
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public function getNew() { |
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return $this->query(' |
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SELECT |
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s1.s_key AS k, |
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s1.s_data AS d, |
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s2.s_data AS f |
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FROM |
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data_store AS s1 |
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LEFT JOIN |
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data_store AS s2 ON s2.s_ab = :sB AND s1.s_key = s2.s_key |
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WHERE |
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s1.s_ab = :sA |
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AND |
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s2.s_ab IS NULL |
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ORDER BY |
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s1.s_sort |
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', function (DiffStorageStoreRowInterface $row) { |
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return $this->formatNewRow($row); |
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}); |
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} |
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/** |
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* Get all rows, that have a different value hash in the other store |
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* |
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* @return Generator|DiffStorageStoreRow[] |
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*/ |
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public function getChanged() { |
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return $this->query(' |
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SELECT |
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s1.s_key AS k, |
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s1.s_data AS d, |
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s2.s_data AS f |
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FROM |
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data_store AS s1 |
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INNER JOIN |
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data_store AS s2 ON s2.s_ab = :sB AND s1.s_key = s2.s_key |
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WHERE |
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s1.s_ab = :sA |
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AND |
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s1.s_value != s2.s_value |
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ORDER BY |
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s1.s_sort |
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', function (DiffStorageStoreRowInterface $row) { |
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return $this->formatChangedRow($row); |
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}); |
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} |
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/** |
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* @return Generator|DiffStorageStoreRow[] |
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*/ |
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public function getNewOrChanged() { |
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return $this->query(' |
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SELECT |
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s1.s_key AS k, |
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s1.s_data AS d, |
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s2.s_data AS f |
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FROM |
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data_store AS s1 |
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LEFT JOIN |
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data_store AS s2 ON s2.s_ab = :sB AND s1.s_key = s2.s_key |
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WHERE |
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s1.s_ab = :sA |
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AND |
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((s2.s_ab IS NULL) OR (s1.s_value != s2.s_value)) |
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ORDER BY |
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s1.s_sort |
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', function (DiffStorageStoreRowInterface $row) { |
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if(count($row->getForeign()->getValueData())) { |
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return $this->formatChangedRow($row); |
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} else { |
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return $this->formatNewRow($row); |
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} |
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}); |
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} |
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/** |
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* Get all rows, that are present in the other store, but not in this |
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* |
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* @return Generator|DiffStorageStoreRow[] |
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*/ |
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public function getMissing() { |
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return $this->query(' |
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SELECT |
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s1.s_key AS k, |
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s2.s_data AS d, |
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s1.s_data AS f |
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FROM |
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data_store AS s1 |
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LEFT JOIN |
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data_store AS s2 ON s2.s_ab = :sA AND s2.s_key = s1.s_key |
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WHERE |
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s1.s_ab = :sB |
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AND |
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s2.s_ab IS NULL |
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ORDER BY |
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s1.s_sort |
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', function (DiffStorageStoreRowInterface $row) { |
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return $this->formatMissingRow($row); |
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}); |
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} |
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/** |
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* @return $this |
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*/ |
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public function clearAll() { |
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$stmt = $this->pdo->query('DELETE FROM data_store WHERE s_ab=:s'); |
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$stmt->execute(['s' => $this->storeA]); |
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$stmt->closeCursor(); |
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} |
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/** |
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* @param string $query |
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* @param callable $stringFormatter |
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* @return DiffStorageStoreRow[]|Generator |
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*/ |
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private function query($query, $stringFormatter) { |
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$stmt = $this->pdo->query($query); |
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$stmt->execute(['sA' => $this->storeA, 'sB' => $this->storeB]); |
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while($row = $stmt->fetch(PDO::FETCH_NUM)) { |
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$d = json_decode($row[1], true); |
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$f = json_decode($row[2], true); |
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yield $this->instantiateRow($d, $f, $stringFormatter); |
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} |
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$stmt->closeCursor(); |
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} |
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/** |
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* @return Traversable|array[] |
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*/ |
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public function getIterator() { |
269
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$query = ' |
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SELECT |
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s1.s_data AS d |
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FROM |
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data_store AS s1 |
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WHERE |
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s1.s_ab = :s |
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ORDER BY |
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s1.s_sort |
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'; |
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$stmt = $this->pdo->query($query); |
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$stmt->execute(['s' => $this->storeA]); |
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while($row = $stmt->fetch(PDO::FETCH_NUM)) { |
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$row = json_decode($row[0], true); |
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$row = $this->instantiateRow($row, [], function (DiffStorageStoreRowInterface $row) { |
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return $this->formatKeyValuePairs($row->getData()); |
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}); |
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yield $row->getData(); |
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} |
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$stmt->closeCursor(); |
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} |
290
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291
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/** |
292
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* @param array $data |
293
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* @param array $translation |
294
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* @return array |
295
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*/ |
296
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private function translate(array $data, array $translation = null) { |
297
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if($translation !== null) { |
298
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$result = []; |
299
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foreach($data as $key => $value) { |
300
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if(array_key_exists($key, $translation)) { |
301
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$key = $translation[$key]; |
302
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} |
303
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$result[$key] = $value; |
304
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} |
305
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return $result; |
306
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} |
307
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return $data; |
308
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} |
309
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310
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/** |
311
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* @return int |
312
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*/ |
313
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public function count() { |
314
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$query = ' |
315
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SELECT |
316
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COUNT(*) |
317
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FROM |
318
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data_store AS s1 |
319
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WHERE |
320
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s1.s_ab = :s |
321
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'; |
322
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$stmt = $this->pdo->query($query); |
323
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$stmt->execute(['s' => $this->storeA]); |
324
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$count = $stmt->fetch(PDO::FETCH_COLUMN, 0); |
325
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return $count; |
326
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} |
327
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|
328
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|
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/** |
329
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* @param array $localData |
330
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* @param array $foreignData |
331
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* @param callable $stringFormatter |
332
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* @return DiffStorageStoreRow |
333
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*/ |
334
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private function instantiateRow(array $localData = null, array $foreignData = null, $stringFormatter) { |
335
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return new DiffStorageStoreRow($localData, $foreignData, $this->keys, $this->valueKeys, $this->converter, $stringFormatter); |
336
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} |
337
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338
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/** |
339
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* @param DiffStorageStoreRowInterface $row |
340
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* @return string |
341
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*/ |
342
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private function formatNewRow(DiffStorageStoreRowInterface $row) { |
343
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$keys = $this->formatKeyValuePairs($row->getLocal()->getKeyData()); |
344
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$values = $this->formatKeyValuePairs($row->getLocal()->getValueData()); |
345
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return sprintf("New %s (%s)", $keys, $values); |
346
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} |
347
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348
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/** |
349
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* @param DiffStorageStoreRowInterface $row |
350
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* @return string |
351
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*/ |
352
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private function formatChangedRow(DiffStorageStoreRowInterface $row) { |
353
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$keys = $this->formatKeyValuePairs($row->getLocal()->getKeyData()); |
354
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$values = $row->getForeign()->getValueData(); |
355
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$valueKeys = array_keys($values); |
356
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return sprintf("Changed %s => %s", $keys, $row->getDiffFormatted($valueKeys)); |
357
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} |
358
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359
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/** |
360
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* @param DiffStorageStoreRowInterface $row |
361
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* @return string |
362
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*/ |
363
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|
|
private function formatMissingRow(DiffStorageStoreRowInterface $row) { |
364
|
|
|
$keys = $this->formatKeyValuePairs($row->getForeign()->getKeyData()); |
365
|
|
|
$values = $this->formatKeyValuePairs($row->getForeign()->getValueData()); |
366
|
|
|
return sprintf("Missing %s (%s)", $keys, $values); |
367
|
|
|
} |
368
|
|
|
|
369
|
|
|
/** |
370
|
|
|
* @param array $keyValues |
371
|
|
|
* @return string |
372
|
|
|
*/ |
373
|
|
|
private function formatKeyValuePairs($keyValues) { |
374
|
|
|
$keyParts = []; |
375
|
|
|
foreach($keyValues as $key => $value) { |
376
|
|
|
$value = preg_replace('/\\s+/', ' ', $value); |
377
|
|
|
if(strlen($value) > 20) { |
378
|
|
|
$value = substr($value, 0, 16) . ' ...'; |
379
|
|
|
} |
380
|
|
|
$keyParts[] = sprintf("%s: %s", $key, json_encode($value, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE)); |
381
|
|
|
} |
382
|
|
|
return join(', ', $keyParts); |
383
|
|
|
} |
384
|
|
|
} |
385
|
|
|
|