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copied!<p>It sounds like you want to use the <a href="http://en.wikipedia.org/wiki/Factory_method_pattern#PHP" rel="nofollow noreferrer">Factory design pattern</a></p> <p>Make this a library:</p> <pre><code>class MyModelFactory { static public function Factory($data) { $type = key($data); return new $type($data); } } </code></pre> <p>now, in your controller, you can do something like this:</p> <pre><code>$model = MyModelFactory::Factory(array($_REQUEST['model'] => $_REQUEST)); </code></pre> <p>and now you have an object of whatever model was specified in $_REQUEST['model']. Be sure to take any security precautions you may need for your application to assure the user has permissions to use the model that they request</p> <p>Now, since you want to be using common methods and stuff, your models should probably be based off an abstract class / interface.. so instead of </p> <pre><code>class MyModelOne extends Model { // stuff } </code></pre> <p>You probably want something like this, to ensure your required methods will always be available:</p> <pre><code>abstract class MyAbstractModel extends Model { protected $search_params; public function __construct($data = array()) { $search_params = $data['search_params']; } protected function GetSearchParameters() { return $this->search_params; } abstract public function GetData(); abstract public function GetColumns(); abstract public function DefineViewOptions(); } class MyModelOne extends MyAbstractModel { public function GetData() { $params = array(); $params[] = $this->db->escape_str($this->GetSearchParameters()); // return whatever data you want, given the search parameter(s) } public function GetColumns() { // return some columns } public function DefineViewOptions() { // return some configuration options } } </code></pre>

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