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1 | <?php |
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2 | |||
3 | namespace Soluble\DbWrapper; |
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4 | |||
5 | class AdapterFactory |
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6 | { |
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7 | |||
8 | /** |
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9 | * Create adapter from an existing connection resource |
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10 | * |
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11 | * @param mixed $resource database connection object (mysqli, pdo_mysql,...) |
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12 | * @throws Exception\InvalidArgumentException |
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13 | * @throws Exception\UnsupportedDriverException |
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14 | * @return Adapter\AdapterInterface |
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15 | */ |
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16 | 3 | public static function createAdapterFromResource($resource) |
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17 | { |
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18 | 3 | if (is_scalar($resource) || is_array($resource)) { |
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19 | throw new Exception\InvalidArgumentException("Resource param must be a valid 'resource' link (mysqli, pdo)"); |
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20 | 3 | } if ($resource instanceof \PDO) { |
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21 | 2 | $adapter = self::getAdapterFromPdo($resource); |
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22 | 2 | } elseif (extension_loaded('mysqli') && $resource instanceof \mysqli) { |
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23 | 1 | $adapter = new Adapter\MysqliAdapter($resource); |
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24 | 1 | } elseif (is_object($resource)) { |
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25 | $class = get_class($resource); |
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26 | $msg = "Resource connection '$class' is either unsupported or php extension not enabled."; |
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27 | throw new Exception\UnsupportedDriverException($msg); |
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28 | } else { |
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29 | throw new Exception\InvalidArgumentException("Resource must be a valid connection link, like PDO or mysqli"); |
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30 | } |
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31 | 2 | return $adapter; |
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32 | } |
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33 | |||
34 | |||
35 | /** |
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36 | * Get an adapter from an existing connection resource |
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37 | * |
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38 | * @param \PDO $resource database connection object |
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39 | * @throws Exception\UnsupportedDriverException |
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40 | * @return Adapter\AdapterInterface |
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41 | */ |
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42 | 2 | protected static function getAdapterFromPdo(\PDO $resource) { |
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43 | |||
44 | 2 | $driver = $resource->getAttribute(\PDO::ATTR_DRIVER_NAME); |
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45 | switch ($driver) { |
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46 | 2 | case 'mysql': |
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47 | 1 | $adapter = new Adapter\PdoMysqlAdapter($resource); |
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48 | 1 | break; |
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49 | 1 | default: |
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50 | 1 | $msg = "Driver 'PDO_$driver' is not currently supported."; |
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51 | 1 | throw new Exception\UnsupportedDriverException($msg); |
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52 | 1 | } |
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53 | 1 | return $adapter; |
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54 | } |
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55 | } |
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56 |