/**
* Quick memcache interaction helper has transaction support using \Sky\Memcache
* Sample Usage:
* mem('myKey', $myValue); // srite my key/value pair to memcache
* echo mem('myKey'); // read the value stored in 'myKey' and echo it
* mem('myKey', null); // delete myKey from memcache
*
* @param mixed $key can be a string or an array of strings
* @param mixed $value if not set, will be a read, if null, delete, else set
* @param string $duration how long you want to store the value, ex: '10 minutes'
* @return mixed
*/
function mem($key, $value = '§k¥', $duration = null)
{
if ($value == '§k¥') {
return \Sky\Memcache::get($key);
} else {
if (!is_null($value)) {
return \Sky\Memcache::set($key, $value, $duration);
} else {
return \Sky\Memcache::delete($key);
}
}
}
/**
* Deletes the current record if there is a token and identifier
* by setting active = 0
* and clears memcache
*
* Triggers events: before_delete and after_delete
* Refreshes $this->_belongs_to
*
* @return array the response array (after_fail or after_save)
*/
public function delete()
{
if ($this->_in_transaction) {
$this->addInternalError('fatal_error', array('message' => 'Cannot delete current instance while in transaction.', 'type' => 'invalid_action'));
return;
}
$id = $this->getID();
if ($this->_use_token_validation && ($this->_token != Model::generateToken($id, $this->_primary_table) || !$this->_token)) {
$this->addInternalError('invalid_token');
}
if (!$id) {
$this->addInternalError('identifier_not_set_for_delete');
}
if ($this->_errors) {
return $this->errorResponse();
}
$this->_in_transaction = true;
$this->startTransaction();
$now = aql::now();
$fields = array('active' => 0, 'mod_time' => $now, 'update_time' => $now);
if (defined('PERSON_ID') && PERSON_ID) {
$fields['mod__person_id'] = $fields['update__person_id'] = PERSON_ID;
}
# load the object
# so that we have the information left over for after_delete hooks
$this->loadDB($id);
if ($this->methodExists('beforeDelete')) {
$this->tryCallable(array($this, 'beforeDelete'));
}
if ($this->hasFailedTransaction() || $this->_errors) {
return $this->getTransactionResponse(true);
}
if (aql::update($this->_primary_table, $fields, $id)) {
# clears the memcache of stored objects of this identifier.
$delete_key = function ($m) use($id) {
$tmp = new $m();
$key = $tmp->getMemKey($id);
\Sky\Memcache::delete($key);
};
$delete_key($this->_model_name);
foreach ($this->getModelDependencies() as $m) {
$delete_key($m);
}
if ($this->methodExists('afterDelete')) {
$this->tryCallable(array($this, 'afterDelete'));
}
if ($this->hasFailedTransaction() || $this->_errors) {
return $this->getTransactionResponse(true);
}
$this->refreshBelongsTo();
$re = $this->getTransactionResponse();
unset($re['data'], $re['_token']);
return $re;
} else {
$this->addInternalError('model_save_failure', array('message' => 'Error deleting record.'));
return $this->getTransactionResponse(true);
}
}