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Doctrine_Cache_Db:

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* added tableName option
* added deleteAll and createTable methods
* fixed fetch method
* fixed a bug with expire time in save method
This commit is contained in:
jepso 2007-08-17 10:49:51 +00:00
parent dc01da94f9
commit ec6f806efe
1 changed files with 75 additions and 13 deletions
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88
lib/Doctrine/Cache/Db.php
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@ -20,7 +20,7 @@
*/ */
/** /**
* Doctrine_Cache_Sqlite * Doctrine_Cache_Db
* *
* @package Doctrine * @package Doctrine
* @subpackage Doctrine_Cache * @subpackage Doctrine_Cache
@ -44,7 +44,14 @@ class Doctrine_Cache_Db extends Doctrine_Cache_Driver implements Countable
! ($options['connection'] instanceof Doctrine_Connection)) { ! ($options['connection'] instanceof Doctrine_Connection)) {
throw new Doctrine_Cache_Exception('Connection option not set.'); throw new Doctrine_Cache_Exception('Connection option not set.');
} }
if ( ! isset($options['tableName']) ||
! is_string($options['tableName'])) {
throw new Doctrine_Cache_Exception('Table name option not set.');
}
$this->_options = $options; $this->_options = $options;
} }
@ -69,15 +76,20 @@ class Doctrine_Cache_Db extends Doctrine_Cache_Driver implements Countable
*/ */
public function fetch($id, $testCacheValidity = true) public function fetch($id, $testCacheValidity = true)
{ {
$sql = 'SELECT data, expires FROM cache WHERE id = ?'; $sql = 'SELECT data, expire FROM ' . $this->_options['tableName']
. ' WHERE id = ?';
if ($testCacheValidity) { if ($testCacheValidity) {
$sql .= ' AND (expire=0 OR expire > ' . time() . ')'; $sql .= ' AND (expire=0 OR expire > ' . time() . ')';
} }
$result = $this->getConnection()->fetchAssoc($sql, array($id)); $result = $this->getConnection()->fetchAssoc($sql, array($id));
return unserialize($result['data']); if ( ! isset($result[0])) {
return false;
}
return unserialize($result[0]['data']);
} }
/** /**
* Test if a cache is available or not (for the given id) * Test if a cache is available or not (for the given id)
@ -87,7 +99,8 @@ class Doctrine_Cache_Db extends Doctrine_Cache_Driver implements Countable
*/ */
public function contains($id) public function contains($id)
{ {
$sql = 'SELECT expires FROM cache WHERE id = ? AND (expire=0 OR expire > ' . time() . ')'; $sql = 'SELECT expire FROM ' . $this->_options['tableName']
. ' WHERE id = ? AND (expire=0 OR expire > ' . time() . ')';
return $this->getConnection()->fetchOne($sql, array($id)); return $this->getConnection()->fetchOne($sql, array($id));
} }
@ -103,9 +116,16 @@ class Doctrine_Cache_Db extends Doctrine_Cache_Driver implements Countable
*/ */
public function save($data, $id, $lifeTime = false) public function save($data, $id, $lifeTime = false)
{ {
$sql = 'INSERT INTO cache (id, data, expires) VALUES (?, ?, ?)'; $sql = 'INSERT INTO ' . $this->_options['tableName']
. ' (id, data, expire) VALUES (?, ?, ?)';
$params = array($id, serialize($data), (time() + $lifeTime));
if ($lifeTime) {
$expire = time() + $lifeTime;
} else {
$expire = 0;
}
$params = array($id, serialize($data), $expire);
return (bool) $this->getConnection()->exec($sql, $params); return (bool) $this->getConnection()->exec($sql, $params);
} }
@ -117,10 +137,23 @@ class Doctrine_Cache_Db extends Doctrine_Cache_Driver implements Countable
*/ */
public function delete($id) public function delete($id)
{ {
$sql = 'DELETE FROM cache WHERE id = ?'; $sql = 'DELETE FROM ' . $this->_options['tableName'] . ' WHERE id = ?';
return (bool) $this->getConnection()->exec($sql, array($id)); return (bool) $this->getConnection()->exec($sql, array($id));
} }
/**
* Removes all cache records
*
* $return bool true on success, false on failure
*/
public function deleteAll()
{
$sql = 'DELETE FROM ' . $this->_options['tableName'];
return (bool) $this->getConnection()->exec($sql);
}
/** /**
* count * count
* returns the number of cached elements * returns the number of cached elements
@ -128,7 +161,36 @@ class Doctrine_Cache_Db extends Doctrine_Cache_Driver implements Countable
* @return integer * @return integer
*/ */
public function count() public function count()
{ {
return (int) $this->getConnection()->fetchOne('SELECT COUNT(*) FROM cache'); $sql = 'SELECT COUNT(*) FROM ' . $this->_options['tableName'];
return (int) $this->getConnection()->fetchOne($sql);
}
/**
* Creates the cache table.
*/
public function createTable()
{
$name = $this->_options['tableName'];
$fields = array(
'id' => array(
'type' => 'string',
'length' => 255
),
'data' => array(
'type' => 'blob'
),
'expire' => array(
'type' => 'timestamp'
)
);
$options = array(
'primary' => array('id')
);
$this->getConnection()->export->createTable($name, $fields, $options);
} }
} }