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<?php |
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namespace Benrowe\Laravel\Config\Storage; |
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use PDO as BasePdo; |
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/** |
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* @package Benrowe\Laravel\Config\Storage |
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*/ |
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class Pdo implements StorageInterface |
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{ |
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/** |
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* @var BasePdo |
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*/ |
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private $pdo; |
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/** |
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* @var string |
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*/ |
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private $tableName; |
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/** |
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* @var array |
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*/ |
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private $sqlQueries = [ |
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'clear' => 'DELETE FROM %tablename%', |
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'delete' => 'DELETE FROM %tablename% WHERE LOWER(LEFT(`key`, ?)) = ?', |
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'load' => 'SELECT `key`, `value` FROM %tablename%', |
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'save' => 'INSERT INTO %tablename% (`key`, `value`) VALUES (?,?)' |
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]; |
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/** |
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* constructor |
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* |
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* @param BasePdo $pdo instance of pdo to execute the queries against |
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* @param string $tableName the table name to reference |
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* @param array $sqlQueries custom queries |
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*/ |
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public function __construct(BasePdo $pdo, $tableName = 'config', array $sqlQueries = []) |
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{ |
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$this->pdo = $pdo; |
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$this->tableName = $tableName; |
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$this->setSqlQueries($sqlQueries); |
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} |
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/** |
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* Set the sql queries to be used |
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* |
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* @param array $queries additional queries to be used. Overrides the base |
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* ones provided with this storage adapter |
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*/ |
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public function setSqlQueries(array $queries) |
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{ |
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$this->sqlQueries = array_merge($this->sqlQueries, $queries); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function save($key, $value) |
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{ |
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$this->delKey($key); |
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if (is_array($value)) { |
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foreach ($value as $i => $arrValue) { |
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$this->saveKey($key.'['.$i.']', $arrValue); |
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} |
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return; |
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} |
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$this->saveKey($key, $value); |
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} |
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/** |
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* Save the specific key into the database |
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* |
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* @param string $key |
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* @param string|int|float $value |
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*/ |
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private function saveKey($key, $value) |
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{ |
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$sql = $this->getSqlQuery('save'); |
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$stmt = $this->pdo->prepare($sql); |
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$stmt->execute([$key, $value]); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function load() |
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{ |
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$sql = $this->getSqlQuery('load'); |
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$stmt = $this->pdo->prepare($sql); |
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$stmt->execute(); |
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$results = []; |
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foreach ($stmt->fetchAll() as $row) { |
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$results[$row['key']] = $row['value']; |
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} |
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return $results; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function clear() |
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{ |
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$this->pdo->exec($this->getSqlQuery('clear')); |
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} |
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/** |
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* Generate the requested sql statement based on the provided name |
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* |
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* @param string $name the query as referenced by it's name |
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* @param array $vars any additional variables needed to generate the sql |
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* @return string |
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*/ |
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private function getSqlQuery($name, array $vars = []) |
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{ |
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$sql = $this->sqlQueries[$name]; |
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$vars = array_merge(['tablename' => $this->tableName], $vars); |
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foreach ($vars as $key => $value) { |
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$sql = str_replace("%$key%", $value, $sql); |
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} |
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return $sql; |
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} |
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/** |
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* Delete the requested key from the database storage |
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* |
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* @param string $key |
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*/ |
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private function delKey($key) |
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{ |
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$sql = $this->getSqlQuery('delete'); |
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$stmt = $this->pdo->prepare($sql); |
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$params = [strlen($key), $key]; |
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$stmt->execute($params); |
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} |
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} |
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benrowe /
laravel-config
