Fatal error: CDbCommand.php (111)

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1 
Fatal error: Call to a member function prepare() on a non-object in ...frameworkdbCDbCommand.php on line 111



$db = Yii::app()->getDb();


$cmd = $db->createCommand('select 1');


$srz = serialize(Yii::app()->getDb());


$cmd->prepare(); // ERROR!!!!!!!!!!!!!!!!
2

Why would you serialize db connection? When you do that, it will automatically disconnect the database and thus your command won't execute as expected.

3

I simply serialize state of my component, including dbConnection in it

4

You should avoid serializing resources.