/vendor/laravel/framework/src/Illuminate/Cache/DatabaseStore.php
PHP | 228 lines | 89 code | 29 blank | 110 comment | 3 complexity | 8c7e0be79707d85082d782bef0006864 MD5 | raw file
- <?php namespace Illuminate\Cache;
- use Exception;
- use LogicException;
- use Illuminate\Contracts\Cache\Store;
- use Illuminate\Database\ConnectionInterface;
- use Illuminate\Contracts\Encryption\Encrypter as EncrypterContract;
- class DatabaseStore implements Store {
- /**
- * The database connection instance.
- *
- * @var \Illuminate\Database\ConnectionInterface
- */
- protected $connection;
- /**
- * The encrypter instance.
- *
- * @var \Illuminate\Contracts\Encryption\Encrypter
- */
- protected $encrypter;
- /**
- * The name of the cache table.
- *
- * @var string
- */
- protected $table;
- /**
- * A string that should be prepended to keys.
- *
- * @var string
- */
- protected $prefix;
- /**
- * Create a new database store.
- *
- * @param \Illuminate\Database\ConnectionInterface $connection
- * @param \Illuminate\Contracts\Encryption\Encrypter $encrypter
- * @param string $table
- * @param string $prefix
- * @return void
- */
- public function __construct(ConnectionInterface $connection, EncrypterContract $encrypter, $table, $prefix = '')
- {
- $this->table = $table;
- $this->prefix = $prefix;
- $this->encrypter = $encrypter;
- $this->connection = $connection;
- }
- /**
- * Retrieve an item from the cache by key.
- *
- * @param string $key
- * @return mixed
- */
- public function get($key)
- {
- $prefixed = $this->prefix.$key;
- $cache = $this->table()->where('key', '=', $prefixed)->first();
- // If we have a cache record we will check the expiration time against current
- // time on the system and see if the record has expired. If it has, we will
- // remove the records from the database table so it isn't returned again.
- if ( ! is_null($cache))
- {
- if (is_array($cache)) $cache = (object) $cache;
- if (time() >= $cache->expiration)
- {
- $this->forget($key);
- return;
- }
- return $this->encrypter->decrypt($cache->value);
- }
- }
- /**
- * Store an item in the cache for a given number of minutes.
- *
- * @param string $key
- * @param mixed $value
- * @param int $minutes
- * @return void
- */
- public function put($key, $value, $minutes)
- {
- $key = $this->prefix.$key;
- // All of the cached values in the database are encrypted in case this is used
- // as a session data store by the consumer. We'll also calculate the expire
- // time and place that on the table so we will check it on our retrieval.
- $value = $this->encrypter->encrypt($value);
- $expiration = $this->getTime() + ($minutes * 60);
- try
- {
- $this->table()->insert(compact('key', 'value', 'expiration'));
- }
- catch (Exception $e)
- {
- $this->table()->where('key', '=', $key)->update(compact('value', 'expiration'));
- }
- }
- /**
- * Increment the value of an item in the cache.
- *
- * @param string $key
- * @param mixed $value
- * @return void
- *
- * @throws \LogicException
- */
- public function increment($key, $value = 1)
- {
- throw new LogicException("Increment operations not supported by this driver.");
- }
- /**
- * Increment the value of an item in the cache.
- *
- * @param string $key
- * @param mixed $value
- * @return void
- *
- * @throws \LogicException
- */
- public function decrement($key, $value = 1)
- {
- throw new LogicException("Decrement operations not supported by this driver.");
- }
- /**
- * Get the current system time.
- *
- * @return int
- */
- protected function getTime()
- {
- return time();
- }
- /**
- * Store an item in the cache indefinitely.
- *
- * @param string $key
- * @param mixed $value
- * @return void
- */
- public function forever($key, $value)
- {
- $this->put($key, $value, 5256000);
- }
- /**
- * Remove an item from the cache.
- *
- * @param string $key
- * @return bool
- */
- public function forget($key)
- {
- $this->table()->where('key', '=', $this->prefix.$key)->delete();
- return true;
- }
- /**
- * Remove all items from the cache.
- *
- * @return void
- */
- public function flush()
- {
- $this->table()->delete();
- }
- /**
- * Get a query builder for the cache table.
- *
- * @return \Illuminate\Database\Query\Builder
- */
- protected function table()
- {
- return $this->connection->table($this->table);
- }
- /**
- * Get the underlying database connection.
- *
- * @return \Illuminate\Database\ConnectionInterface
- */
- public function getConnection()
- {
- return $this->connection;
- }
- /**
- * Get the encrypter instance.
- *
- * @return \Illuminate\Contracts\Encryption\Encrypter
- */
- public function getEncrypter()
- {
- return $this->encrypter;
- }
- /**
- * Get the cache key prefix.
- *
- * @return string
- */
- public function getPrefix()
- {
- return $this->prefix;
- }
- }