Implements: Countable | Serializable | ArrayAccess | Traversable | IteratorAggregate
Database-based configuration loader.
Schema for configuration table:
group_name varchar(128)config_key varchar(128)config_value textprimary key (group_name, config_key)
Class declared in MODPATH/database/classes/kohana/config/database.php on line 18.
integer 1
integer 2
string $_configuration_grouplink to thisConfiguration group name
Loads an empty array as the initial configuration and enables array keys to be used as properties.
void
publicfunction__construct(array$config= NULL){if(isset($config['instance'])){$this->_database_instance =$config['instance'];}elseif($this->_database_instance === NULL){$this->_database_instance = Database::$default;}if(isset($config['table'])){$this->_database_table =$config['table'];}parent::__construct();}
Query the configuration table for all values for this group and unserialize each of the values.
string
$group
required - Group namearray
$config
= NULL - Configuration array$this - Clone of the current object
publicfunctionload($group,array$config= NULL){if($config=== NULL AND$group!=='database'){// Load all of the configuration values for this group$query= DB::select('config_key','config_value')->from($this->_database_table)->where('group_name','=',$group)->execute($this->_database_instance);if(count($query) > 0){// Unserialize the configuration values$config=array_map('unserialize',$query->as_array('config_key','config_value'));}}returnparent::load($group,$config);}
Overload setting offsets to insert or update the database values as changes occur.
string
$key
required - Array keymixed
$value
required - New valuemixed
publicfunctionoffsetSet($key,$value){if( !$this->offsetExists($key)){// Insert a new valueDB::insert($this->_database_table,array('group_name','config_key','config_value'))->values(array($this->_configuration_group,$key, serialize($value)))->execute($this->_database_instance);}elseif($this->offsetGet($key) !==$value){// Update the valueDB::update($this->_database_table)->value('config_value', serialize($value))->where('group_name','=',$this->_configuration_group)->where('config_key','=',$key)->execute($this->_database_instance);}returnparent::offsetSet($key,$value);}
Return the current group in serialized form.
echo$config;
string
publicfunction__toString(){returnserialize($this->getArrayCopy());}
Return the raw array that is being used for this object.
$array=$config->as_array();
array
publicfunctionas_array(){return$this->getArrayCopy();}
Get a variable from the configuration or return the default value.
$value=$config->get($key);
string
$key
required - Array keymixed
$default
= NULL - Default valuemixed
publicfunctionget($key,$default= NULL){return$this->offsetExists($key) ?$this->offsetGet($key) :$default;}
Sets a value in the configuration array.
$config->set($key,$new_value);
string
$key
required - Array keymixed
$value
required - Array value$this
publicfunctionset($key,$value){$this->offsetSet($key,$value);return$this;}